From: Ian Jackson Date: Thu, 16 Jan 2014 17:03:34 +0000 (+0000) Subject: libxl: fork: Provide LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~5610 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22Dat/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22Dat?a=commitdiff_plain;h=80c2b7273bd2a86ac267f77a6cfb19c6fe077307;p=xen.git libxl: fork: Provide LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP This is the feature test macro for libxl_childproc_sigchld_occurred and libxl_sigchld_owner_libxl_always_selective_reap. It is split out into this separate patch because: a single feature test is sensible because we do not intend anyone to release or ship libxl versions with one of these but not the other; but, the two features are in separate patches for clarity; and, this just makes reading the actual code easier. Signed-off-by: Ian Jackson Cc: Jim Fehlig Cc: Ian Campbell --- diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index 12d6c311a2..1ac34c320c 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -409,6 +409,19 @@ */ #define LIBXL_HAVE_DRIVER_DOMAIN_CREATION 1 +/* + * LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP + * + * If this is defined: + * + * Firstly, the enum libxl_sigchld_owner (in libxl_event.h) has the + * value libxl_sigchld_owner_libxl_always_selective_reap which may be + * passed to libxl_childproc_setmode in hooks->chldmode. + * + * Secondly, the function libxl_childproc_sigchld_occurred exists. + */ +#define LIBXL_HAVE_SIGCHLD_OWNER_SELECTIVE_REAP 1 + /* Functions annotated with LIBXL_EXTERNAL_CALLERS_ONLY may not be * called from within libxl itself. Callers outside libxl, who * do not #include libxl_internal.h, are fine. */