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Make check_bridge back off if it cant get all the locks it wants

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1321 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2003-08-14 13:12:39 +00:00
parent 981b58ae55
commit c21550022e
1 changed files with 19 additions and 13 deletions
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24
channels/chan_local.c
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@@ -134,21 +134,27 @@ static void check_bridge(struct local_pvt *p, int isoutbound)
return;
if (isoutbound && p->chan && p->chan->bridge && p->owner) {
/* Masquerade bridged channel into owner */
/* Lock other side first */
ast_mutex_lock(&p->chan->bridge->lock);
ast_mutex_lock(&p->owner->lock);
/* Lock everything we need, one by one, and give up if
we can't get everything. Remember, we'll get another
chance in just a little bit */
if (!ast_mutex_trylock(&p->chan->bridge->lock)) {
if (!ast_mutex_trylock(&p->owner->lock)) {
ast_channel_masquerade(p->owner, p->chan->bridge);
ast_mutex_unlock(&p->owner->lock);
ast_mutex_unlock(&p->chan->bridge->lock);
p->alreadymasqed = 1;
ast_mutex_unlock(&p->owner->lock);
}
ast_mutex_unlock(&p->chan->bridge->lock);
}
} else if (!isoutbound && p->owner && p->owner->bridge && p->chan) {
/* Masquerade bridged channel into chan */
ast_mutex_lock(&p->owner->bridge->lock);
ast_mutex_lock(&p->chan->lock);
if (!ast_mutex_trylock(&p->owner->bridge->lock)) {
if (!ast_mutex_trylock(&p->chan->lock)) {
ast_channel_masquerade(p->chan, p->owner->bridge);
ast_mutex_unlock(&p->chan->lock);
ast_mutex_unlock(&p->owner->bridge->lock);
p->alreadymasqed = 1;
ast_mutex_unlock(&p->chan->lock);
}
ast_mutex_unlock(&p->owner->bridge->lock);
}
}
}