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Fix queue weight issue (bug #3797, take 2)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5225 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2005-03-21 22:08:36 +00:00
parent ceadbd2d91
commit c446ba8b76
1 changed files with 9 additions and 8 deletions
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17
apps/app_queue.c
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@@ -754,15 +754,10 @@ static int compare_weight(struct ast_call_queue *rq, struct member *member)
struct member *mem;
int found = 0;
/* avoid deadlock which can occur under specific condition.
* another queue-walking func may be waiting for rq->lock, which
* was set by try_calling, but won't unlock til this finishes,
* yet we're waiting for &qlock. happy fun times! */
ast_mutex_unlock(&rq->lock);
ast_mutex_lock(&qlock);
ast_mutex_lock(&rq->lock);
/* &qlock and &rq->lock already set by try_calling()
* to solve deadlock */
for (q = queues; q; q = q->next) {
if (q == rq) /* don't check myself */
if (q == rq) /* don't check myself, could deadlock */
continue;
ast_mutex_lock(&q->lock);
if (q->count && q->members) {
@@ -1400,6 +1395,8 @@ static int try_calling(struct queue_ent *qe, char *ooptions, char *announceoverr
time_t now;
struct ast_bridge_config config;
/* Hold the lock while we setup the outgoing calls */
if (use_weight)
ast_mutex_lock(&qlock);
ast_mutex_lock(&qe->parent->lock);
if (option_debug)
ast_log(LOG_DEBUG, "%s is trying to call a queue member.\n",
@@ -1416,6 +1413,8 @@ static int try_calling(struct queue_ent *qe, char *ooptions, char *announceoverr
tmp = malloc(sizeof(struct localuser));
if (!tmp) {
ast_mutex_unlock(&qe->parent->lock);
if (use_weight)
ast_mutex_unlock(&qlock);
ast_log(LOG_WARNING, "Out of memory\n");
goto out;
}
@@ -1489,6 +1488,8 @@ static int try_calling(struct queue_ent *qe, char *ooptions, char *announceoverr
to = -1;
ring_one(qe, outgoing, &numbusies);
ast_mutex_unlock(&qe->parent->lock);
if (use_weight)
ast_mutex_unlock(&qlock);
lpeer = wait_for_answer(qe, outgoing, &to, &flags, &digit, numbusies);
ast_mutex_lock(&qe->parent->lock);
if (qe->parent->strategy == QUEUE_STRATEGY_RRMEMORY) {