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Astobj2: Run weakproxy subscription callbacks in reverse order. 

Modify ao2_weakproxy_subscribe so each new subscription is added
to the head of the list.  This ensures that when other objects
are allocated and use a subscription to the weakproxy for cleanup,
cleanup will occur in the correct order.

ASTERISK-25120 #close

Change-Id: Ie0476f08ec21330de1b3f5a2dd3d9eb683df3d3d
This commit is contained in:
Corey Farrell 2015-05-22 17:52:29 -04:00
parent f66c41e668
commit 5a1f2a5884
2 changed files with 3 additions and 1 deletions
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2
include/asterisk/astobj2.h
View File

@ -612,6 +612,8 @@ void *__ao2_weakproxy_get_object(void *weakproxy, int flags,
* \retval 0 Success
* \retval -1 Failure
*
* \note Callbacks are run in the reverse order of subscriptions.
*
* \note This procedure will allow the same cb / data pair to be added to
* the same weakproxy multiple times.
*

2
main/astobj2.c
View File

@ -928,7 +928,7 @@ int ao2_weakproxy_subscribe(void *weakproxy, ao2_weakproxy_notification_cb cb, v
if (sub) {
sub->cb = cb;
sub->data = data;
AST_LIST_INSERT_TAIL(&weak->destroyed_cb, sub, list);
AST_LIST_INSERT_HEAD(&weak->destroyed_cb, sub, list);
ret = 0;
}
} else {