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ensure that after a channel is created, if it happened to be in 'channel alarm' state, when that alarm clears we won't generate a spurious 'alarm cleared' message

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(closes issue #12160)
Reported by: tzafrir



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@132942 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2008-07-23 15:52:29 +00:00
parent f6d7c63346
commit b134688e7e
1 changed files with 14 additions and 1 deletions
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15
channels/chan_dahdi.c
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@@ -7586,12 +7586,25 @@ static struct dahdi_pvt *mkintf(int channel, const struct dahdi_chan_conf *conf,
ioctl(tmp->subs[SUB_REAL].dfd,DAHDI_SETTONEZONE,&tmp->tonezone);
#ifdef HAVE_PRI
/* the dchannel is down so put the channel in alarm */
if (tmp->pri && !pri_is_up(tmp->pri))
if (tmp->pri && !pri_is_up(tmp->pri)) {
tmp->inalarm = 1;
}
#endif
if ((res = get_alarms(tmp)) != DAHDI_ALARM_NONE) {
tmp->inalarm = 1;
handle_alarms(tmp, res);
} else {
/* yes, this looks strange... the unknown_alarm flag is only used to
control whether an 'alarm cleared' message gets generated when we
get an indication that the channel is no longer in alarm status.
however, the channel *could* be in an alarm status that we aren't
aware of (since get_alarms() only reports span alarms, not channel
alarms). setting this flag will cause any potential 'alarm cleared'
message to be suppressed, but if a real alarm occurs before that
happens, this flag will get cleared by it and the situation will
be normal.
*/
tmp->unknown_alarm = 1;
}
}