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authorTerry Wilson <twilson@digium.com>2012-05-22 17:29:12 +0000
committerTerry Wilson <twilson@digium.com>2012-05-22 17:29:12 +0000
commitc7f2d02ef1d4e5c10987c807ecec377453bb425c (patch)
treeda503e5fa4934f3ac37b243571c4cc6ca2641e0c /main/asterisk.c
parent1ffb200c0e8642b7fb5c4f174e0064877f0c3d85 (diff)
Fix race condition for CEL LINKEDID_END event
This patch fixes to situations that could cause the CEL LINKEDID_END event to be missed. 1) During a core stop gracefully, modules are unloaded when ast_active_channels == 0. The LINKDEDID_END event fires during the channel destructor. This means that occasionally, the cel_* module will be unloaded before the channel is destroyed. It seemed generally useful to wait until the refcount of all channels == 0 before unloading, so I added a channel counter and used it in the shutdown code. 2) During a masquerade, ast_channel_change_linkedid is called. It calls ast_cel_check_retire_linkedid which unrefs the linkedid in the linkedids container in cel.c. It didn't ref the new linkedid. Now it does. Review: https://reviewboard.asterisk.org/r/1900/ ........ Merged revisions 367292 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 367299 from http://svn.asterisk.org/svn/asterisk/branches/10 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@367309 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'main/asterisk.c')
-rw-r--r--main/asterisk.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/main/asterisk.c b/main/asterisk.c
index 972c2fbb1..849cbdd80 100644
--- a/main/asterisk.c
+++ b/main/asterisk.c
@@ -1704,7 +1704,7 @@ static int can_safely_quit(shutdown_nice_t niceness, int restart)
for (;;) {
time(&e);
/* Wait up to 15 seconds for all channels to go away */
- if ((e - s) > 15 || !ast_active_channels() || shuttingdown != niceness) {
+ if ((e - s) > 15 || !ast_undestroyed_channels() || shuttingdown != niceness) {
break;
}
/* Sleep 1/10 of a second */
@@ -1718,7 +1718,7 @@ static int can_safely_quit(shutdown_nice_t niceness, int restart)
ast_verb(0, "Waiting for inactivity to perform %s...\n", restart ? "restart" : "halt");
}
for (;;) {
- if (!ast_active_channels() || shuttingdown != niceness) {
+ if (!ast_undestroyed_channels() || shuttingdown != niceness) {
break;
}
sleep(1);