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Fixed race condition on hangup 

Fixed crash on incoming CALL PROGRESS if cannot find zchan


git-svn-id: http://svn.openzap.org/svn/openzap/trunk@938 a93c3328-9c30-0410-af19-c9cd2b2d52af
This commit is contained in:
David Yat Sin 2009-12-14 17:02:40 +00:00
parent b94dfc5c6a
commit 143ba2785f
1 changed files with 19 additions and 6 deletions
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25
libs/openzap/src/ozmod/ozmod_sangoma_boost/ozmod_sangoma_boost.c
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@ -473,9 +473,9 @@ static void handle_call_progress(sangomabc_connection_t *mcon, sangomabc_short_e
zap_log(ZAP_LOG_CRIT, "START PROGRESS CANT FIND A CHAN %d:%d\n", event->span+1,event->chan+1);
zap_set_sflag(zchan, SFLAG_SENT_FINAL_MSG);
if (zchan) {
zap_set_sflag(zchan, SFLAG_SENT_FINAL_MSG);
}
sangomabc_exec_command(mcon,
event->span,
event->chan,
@ -665,7 +665,22 @@ static void handle_call_stop(zap_span_t *span, sangomabc_connection_t *mcon, san
int r = 0;
zap_mutex_lock(zchan->mutex);
zap_set_state_r(zchan, ZAP_CHANNEL_STATE_TERMINATING, 0, r);
if (zchan->state == ZAP_CHANNEL_STATE_HANGUP) {
/* racing condition where both sides initiated a hangup
* Do not change current state as channel is already clearing
* itself through local initiated hangup */
sangomabc_exec_command(mcon,
zchan->physical_span_id-1,
zchan->physical_chan_id-1,
0,
SIGBOOST_EVENT_CALL_STOPPED_ACK,
0);
return;
} else {
zap_set_state_r(zchan, ZAP_CHANNEL_STATE_TERMINATING, 0, r);
}
if (r == ZAP_STATE_CHANGE_SUCCESS) {
zchan->caller_data.hangup_cause = event->release_cause;
@ -682,7 +697,6 @@ static void handle_call_stop(zap_span_t *span, sangomabc_connection_t *mcon, san
} /* else we have to do it ourselves.... */
zap_log(ZAP_LOG_WARNING, "We could not find chan: s%dc%d\n", event->span, event->chan);
release_request_id_span_chan(event->span, event->chan);
}
@ -1104,7 +1118,6 @@ static __inline__ void state_advance(zap_channel_t *zchan)
break;
case ZAP_CHANNEL_STATE_TERMINATING:
{
sig.event_id = ZAP_SIGEVENT_STOP;
status = sangoma_boost_data->signal_cb(&sig);
}