From f074a9fc2ff279911af56b1a80c20475aaa77430 Mon Sep 17 00:00:00 2001
From: "cl349@firebug.cl.cam.ac.uk" <cl349@firebug.cl.cam.ac.uk>
Date: Wed, 18 May 2005 13:20:48 +0000
Subject: [PATCH] bitkeeper revision 1.1440.1.1
 (428b4130AHhjh0DP-1uIBubaOIywiw)

domain.c:
  Send VIRQ_DOM_EXC when domain_destruct removes a domain from
  Xen's list of domains.
XendDomain.py:
  Now that virq's work, remove periodic domain refresh calls to reap expired
  domains.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
---
 tools/python/xen/xend/XendDomain.py | 40 +++++------------------------
 xen/common/domain.c                 |  2 ++
 2 files changed, 9 insertions(+), 33 deletions(-)

diff --git a/tools/python/xen/xend/XendDomain.py b/tools/python/xen/xend/XendDomain.py
index 201bf2c3f7..691ece4dda 100644
--- a/tools/python/xen/xend/XendDomain.py
+++ b/tools/python/xen/xend/XendDomain.py
@@ -109,7 +109,7 @@ class XendDomain:
         """Event handler for virq.
         """
         print 'onVirq>', val
-        self.refresh_schedule(delay=0)
+        self.refresh()
 
     def schedule_later(self, _delay, _name, _fn, *args):
         """Schedule a function to be called later (if not already scheduled).
@@ -128,18 +128,6 @@ class XendDomain:
         """
         self.scheduler.cancel(name)
 
-    def refresh_schedule(self, delay=1):
-        """Schedule refresh to be called later.
-        
-        @param delay: delay in seconds
-        """
-        self.schedule_later(delay, 'refresh', self.refresh)
-
-    def refresh_cancel(self):
-        """Cancel any scheduled refresh.
-        """
-        self.schedule_cancel('refresh')
-
     def domain_restarts_schedule(self, delay=1):
         """Schedule domain_restarts to be called later.
         
@@ -320,8 +308,6 @@ class XendDomain:
     def refresh(self):
         """Refresh domain list from Xen.
         """
-        self.refresh_cancel()
-        self.refresh_schedule(delay=10)
         self.reap()
         doms = self.xen_domains()
         # Add entries for any domains we don't know about.
@@ -373,7 +359,6 @@ class XendDomain:
 
         @return: domain names
         """
-        self.refresh()
         return self.domain_by_name.keys()
 
     def domain_ls_ids(self):
@@ -506,16 +491,12 @@ class XendDomain:
         @param reason: shutdown type: poweroff, reboot, suspend, halt
         """
         dominfo = self.domain_lookup(id)
-        if reason == 'halt':
-            self.domain_restart_cancel(dominfo.id)
-        else:
-            self.domain_restart_schedule(dominfo.id, reason, force=True)
+        self.domain_restart_schedule(dominfo.id, reason, force=True)
         eserver.inject('xend.domain.shutdown', [dominfo.name, dominfo.id, reason])
         if reason == 'halt':
             reason = 'poweroff'
         val = dominfo.shutdown(reason, key=key)
         self.add_shutdown(dominfo, reason, key)
-        self.refresh_schedule(delay=10)
         return val
 
     def add_shutdown(self, dominfo, reason, key):
@@ -566,12 +547,12 @@ class XendDomain:
         dominfo = self.domain_lookup(id)
         if not dominfo:
             return
-        if dominfo.id in self.restarts_by_id:
-            return
         restart = (force and reason == 'reboot') or dominfo.restart_needed(reason)
         if restart:
             dominfo.restarting()
             self.domain_restart_add(dominfo)
+        else:
+            self.domain_restart_cancel(dominfo.id)
 
     def domain_restart_add(self, dominfo):
         self.restarts_by_name[dominfo.name] = dominfo
@@ -615,7 +596,7 @@ class XendDomain:
             self.domain_restart(dominfo)
         if self.domain_restarts_exist():
             # Run again later if any restarts remain.
-            self.refresh_schedule(delay=10)
+            self.domain_restarts_schedule(delay=10)
 
     def domain_restarts_exist(self):
         return len(self.restarts_by_id)
@@ -645,12 +626,9 @@ class XendDomain:
 
         @param id: domain id
         """
-        if reason == 'halt':
-            self.domain_restart_cancel(id)
-        elif reason == 'reboot':
-            self.domain_restart_schedule(id, reason, force=True)
+        self.domain_restart_schedule(id, reason, force=True)
         val = self.final_domain_destroy(id)
-        self.refresh_schedule()
+        self.refresh()
         return val
 
     def domain_migrate(self, id, dst, live=False, resource=0):
@@ -735,7 +713,6 @@ class XendDomain:
         dominfo = self.domain_lookup(id)
         val = dominfo.device_create(devconfig)
         self.update_domain(dominfo.id)
-        self.refresh_schedule()
         return val
 
     def domain_device_configure(self, id, devconfig, idx):
@@ -749,7 +726,6 @@ class XendDomain:
         dominfo = self.domain_lookup(id)
         val = dominfo.device_configure(devconfig, idx)
         self.update_domain(dominfo.id)
-        self.refresh_schedule()
         return val
     
     def domain_device_refresh(self, id, type, idx):
@@ -762,7 +738,6 @@ class XendDomain:
         dominfo = self.domain_lookup(id)
         val = dominfo.device_refresh(type, idx)
         self.update_domain(dominfo.id)
-        self.refresh_schedule()
         return val
 
     def domain_device_destroy(self, id, type, idx):
@@ -775,7 +750,6 @@ class XendDomain:
         dominfo = self.domain_lookup(id)
         val = dominfo.device_destroy(type, idx)
         self.update_domain(dominfo.id)
-        self.refresh_schedule()
         return val
 
     def domain_devtype_ls(self, id, type):
diff --git a/xen/common/domain.c b/xen/common/domain.c
index 819bd01ca0..b7f104353c 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -212,6 +212,8 @@ void domain_destruct(struct domain *d)
     free_xenheap_page((unsigned long)d->shared_info);
 
     free_domain_struct(d);
+
+    send_guest_virq(dom0->exec_domain[0], VIRQ_DOM_EXC);
 }
 
 
-- 
2.30.2