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Merged revisions 7513 via svnmerge from

Browse Source 
https://origsvn.digium.com/svn/asterisk/branches/1.2

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r7513 | kpfleming | 2005-12-16 21:44:30 -0600 (Fri, 16 Dec 2005) | 2 lines

forcibly expire previous subscriptions from a peer when they resubscribe (keeps them from building up and waiting for expiration, and stops us sending unwanted NOTIFY messages to devices)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7514 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-12-17 03:45:25 +00:00
parent 9cc6ad4880
commit caa2e580da
1 changed files with 29 additions and 1 deletions
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30
channels/chan_sip.c
View File

@@ -10799,12 +10799,40 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
ast_set_flag(p, SIP_NEEDDESTROY);
return 0;
} else {
struct sip_pvt *p_old;
transmit_response(p, "200 OK", req);
transmit_state_notify(p, firststate, 1, 1); /* Send first notification */
append_history(p, "Subscribestatus", ast_extension_state2str(firststate));
/* remove any old subscription from this peer for the same exten/context,
as the peer has obviously forgotten about it and it's wasteful to wait
for it to expire and send NOTIFY messages to the peer only to have them
ignored (or generate errors)
*/
ast_mutex_lock(&iflock);
for (p_old = iflist; p_old; p_old = p_old->next) {
if (p_old == p)
continue;
if (p_old->initreq.method != SIP_SUBSCRIBE)
continue;
if (p_old->subscribed == NONE)
continue;
ast_mutex_lock(&p_old->lock);
if (!strcmp(p_old->username, p->username)) {
if (!strcmp(p_old->exten, p->exten) &&
!strcmp(p_old->context, p->context)) {
ast_set_flag(p_old, SIP_NEEDDESTROY);
ast_mutex_unlock(&p_old->lock);
break;
}
}
ast_mutex_unlock(&p_old->lock);
}
ast_mutex_unlock(&iflock);
}
if (!p->expiry)
ast_set_flag(p, SIP_NEEDDESTROY);
ast_set_flag(p, SIP_NEEDDESTROY);
}
return 1;
}