[svn-commits] dvossel: branch 1.4 r231437 - /branches/1.4/apps/app_queue.c
SVN commits to the Digium repositories
svn-commits at lists.digium.com
Mon Nov 30 10:33:03 CST 2009
Author: dvossel
Date: Mon Nov 30 10:32:58 2009
New Revision: 231437
URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=231437
Log:
app_queue crashes randomly, often during call-transfers
In app_queue, it is possible for a call_queue to be destroyed
while another object still holds a pointer to it. This patch
converts call_queue objects to ao2 objects allowing them to be
ref counted. This makes it safe for the queue_ent object in
queue_exec() to reference it's parent call_queue even after it
has left the queue.
(closes issue #15686)
Reported by: Hatrix
Patches:
v2_queue_ao2.diff uploaded by dvossel (license 671)
Tested by: dvossel, aragon
Review: https://reviewboard.asterisk.org/r/427/
Modified:
branches/1.4/apps/app_queue.c
Modified: branches/1.4/apps/app_queue.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.4/apps/app_queue.c?view=diff&rev=231437&r1=231436&r2=231437
==============================================================================
--- branches/1.4/apps/app_queue.c (original)
+++ branches/1.4/apps/app_queue.c Mon Nov 30 10:32:58 2009
@@ -385,7 +385,6 @@
#define QUEUE_EVENT_VARIABLES 3
struct call_queue {
- ast_mutex_t lock;
char name[80]; /*!< Name */
char moh[80]; /*!< Music On Hold class to be used */
char announce[80]; /*!< Announcement to play when call is answered */
@@ -454,8 +453,8 @@
static AST_LIST_HEAD_STATIC(queues, call_queue);
static int set_member_paused(const char *queuename, const char *interface, int paused);
-
static void queue_transfer_fixup(void *data, struct ast_channel *old_chan, struct ast_channel *new_chan);
+static void free_members(struct call_queue *q, int all);
static void rr_dep_warning(void)
{
@@ -510,6 +509,27 @@
}
return -1;
+}
+
+/*!
+ * \brief removes a call_queue from the list of call_queues
+ */
+static void remove_queue(struct call_queue *q)
+{
+ AST_LIST_LOCK(&queues);
+ if (AST_LIST_REMOVE(&queues, q, list)) {
+ ao2_ref(q, -1);
+ }
+ AST_LIST_UNLOCK(&queues);
+}
+
+static void destroy_queue(void *obj)
+{
+ struct call_queue *q = obj;
+ if (q->members) {
+ free_members(q, 1);
+ ao2_ref(q->members, -1);
+ }
}
/*! \brief Insert the 'new' entry after the 'prev' entry of queue 'q' */
@@ -527,6 +547,11 @@
q->head = new;
}
new->next = cur;
+
+ /* every queue_ent must have a reference to it's parent call_queue, this
+ * reference does not go away until the end of the queue_ent's life, meaning
+ * that even when the queue_ent leaves the call_queue this ref must remain. */
+ ao2_ref(q, +1);
new->parent = q;
new->pos = ++(*pos);
new->opos = *pos;
@@ -550,7 +575,7 @@
struct ao2_iterator mem_iter;
enum queue_member_status result = QUEUE_NO_MEMBERS;
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((member = ao2_iterator_next(&mem_iter))) {
if (max_penalty && (member->penalty > max_penalty)) {
@@ -573,13 +598,13 @@
ao2_ref(member, -1);
break;
default:
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
ao2_ref(member, -1);
return QUEUE_NORMAL;
}
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
return result;
}
@@ -598,7 +623,7 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((cur = ao2_iterator_next(&mem_iter))) {
char *slash_pos;
@@ -635,7 +660,7 @@
ao2_ref(cur, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
AST_LIST_UNLOCK(&queues);
@@ -785,8 +810,7 @@
{
struct call_queue *q;
- if ((q = ast_calloc(1, sizeof(*q)))) {
- ast_mutex_init(&q->lock);
+ if ((q = ao2_alloc(sizeof(*q), destroy_queue))) {
ast_copy_string(q->name, queuename, sizeof(q->name));
}
return q;
@@ -915,7 +939,7 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((mem = ao2_iterator_next(&mem_iter))) {
if (!strcasecmp(mem->state_interface, interface)) {
@@ -926,7 +950,7 @@
ao2_ref(mem, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
if (ret)
break;
}
@@ -1187,14 +1211,6 @@
ao2_iterator_destroy(&mem_iter);
}
-static void destroy_queue(struct call_queue *q)
-{
- free_members(q, 1);
- ast_mutex_destroy(&q->lock);
- ao2_ref(q->members, -1);
- free(q);
-}
-
/*!\brief Reload a single queue via realtime.
\return Return the queue, or NULL if it doesn't exist.
\note Should be called with the global qlock locked. */
@@ -1216,14 +1232,14 @@
/* Static queues override realtime. */
if (q) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if (!q->realtime) {
if (q->dead) {
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
return NULL;
} else {
ast_log(LOG_WARNING, "Static queue '%s' already exists. Not loading from realtime\n", q->name);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
return q;
}
}
@@ -1244,11 +1260,10 @@
/* Delete if unused (else will be deleted when last caller leaves). */
if (!q->count) {
/* Delete. */
- AST_LIST_REMOVE(&queues, q, list);
- ast_mutex_unlock(&q->lock);
- destroy_queue(q);
+ ao2_unlock(q);
+ remove_queue(q);
} else
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
return NULL;
}
@@ -1257,7 +1272,7 @@
if (!q) {
if (!(q = alloc_queue(queuename)))
return NULL;
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
clear_queue(q);
q->realtime = 1;
AST_LIST_INSERT_HEAD(&queues, q, list);
@@ -1309,16 +1324,16 @@
while ((m = ao2_iterator_next(&mem_iter))) {
if (m->dead) {
ao2_unlink(q->members, m);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
remove_from_interfaces(m->state_interface);
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
q->membercount--;
}
ao2_ref(m, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
return q;
}
@@ -1358,7 +1373,7 @@
return;
}
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
/* Temporarily set realtime members dead so we can detect deleted ones.*/
mem_iter = ao2_iterator_init(q->members, 0);
@@ -1382,15 +1397,15 @@
while ((m = ao2_iterator_next(&mem_iter))) {
if (m->dead) {
ao2_unlink(q->members, m);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
remove_from_interfaces(m->state_interface);
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
q->membercount--;
}
ao2_ref(m, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
ast_config_destroy(member_config);
}
@@ -1457,7 +1472,7 @@
return res;
AST_LIST_LOCK(&queues);
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
/* This is our one */
stat = get_member_status(q, qe->max_penalty);
@@ -1503,7 +1518,7 @@
if (option_debug)
ast_log(LOG_DEBUG, "Queue '%s' Join, Channel '%s', Position '%d'\n", q->name, qe->chan->name, qe->pos );
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
AST_LIST_UNLOCK(&queues);
return res;
@@ -1678,10 +1693,10 @@
/* Thanks to SRT for this contribution */
/* 2^2 (4) is the filter coefficient; a higher exponent would give old entries more weight */
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
oldvalue = qe->parent->holdtime;
qe->parent->holdtime = (((oldvalue << 2) - oldvalue) + newholdtime) >> 2;
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
}
@@ -1693,7 +1708,7 @@
if (!(q = qe->parent))
return;
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
prev = NULL;
for (cur = q->head; cur; cur = cur->next) {
@@ -1717,14 +1732,11 @@
prev = cur;
}
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
if (q->dead && !q->count) {
/* It's dead and nobody is in it, so kill it */
- AST_LIST_LOCK(&queues);
- AST_LIST_REMOVE(&queues, q, list);
- AST_LIST_UNLOCK(&queues);
- destroy_queue(q);
+ remove_queue(q);
}
}
@@ -1807,7 +1819,7 @@
AST_LIST_TRAVERSE(&queues, q, list) {
if (q == rq) /* don't check myself, could deadlock */
continue;
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if (q->count && q->members) {
if ((mem = ao2_find(q->members, member, OBJ_POINTER))) {
ast_log(LOG_DEBUG, "Found matching member %s in queue '%s'\n", mem->interface, q->name);
@@ -1818,7 +1830,7 @@
ao2_ref(mem, -1);
}
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
if (found)
break;
}
@@ -1933,9 +1945,9 @@
update_status(tmp->member->state_interface, ast_device_state(tmp->member->state_interface));
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
qe->parent->rrpos++;
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(&qe->parent);
(*busies)++;
return 0;
@@ -2151,7 +2163,7 @@
static void record_abandoned(struct queue_ent *qe)
{
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
manager_event(EVENT_FLAG_AGENT, "QueueCallerAbandon",
"Queue: %s\r\n"
"Uniqueid: %s\r\n"
@@ -2161,7 +2173,7 @@
qe->parent->name, qe->chan->uniqueid, qe->pos, qe->opos, (int)(time(NULL) - qe->start));
qe->parent->callsabandoned++;
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(&qe->parent);
}
/*! \brief RNA == Ring No Answer. Common code that is executed when we try a queue member and they don't answer. */
@@ -2463,7 +2475,7 @@
int avl;
int idx = 0;
/* This needs a lock. How many members are available to be served? */
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
avl = num_available_members(qe->parent);
@@ -2479,7 +2491,7 @@
ch = ch->next;
}
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
/* If the queue entry is within avl [the number of available members] calls from the top ... */
if (ch && idx < avl) {
@@ -2581,13 +2593,13 @@
static int update_queue(struct call_queue *q, struct member *member, int callcompletedinsl)
{
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
time(&member->lastcall);
member->calls++;
q->callscompleted++;
if (callcompletedinsl)
q->callscompletedinsl++;
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
return 0;
}
@@ -2865,7 +2877,7 @@
/* Hold the lock while we setup the outgoing calls */
if (use_weight)
AST_LIST_LOCK(&queues);
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
if (option_debug)
ast_log(LOG_DEBUG, "%s is trying to call a queue member.\n",
qe->chan->name);
@@ -2883,7 +2895,7 @@
if (!tmp) {
ao2_iterator_destroy(&memi);
ao2_ref(cur, -1);
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
if (use_weight)
AST_LIST_UNLOCK(&queues);
goto out;
@@ -2892,7 +2904,7 @@
if (!(datastore = ast_channel_datastore_alloc(&dialed_interface_info, NULL))) {
ao2_iterator_destroy(&memi);
ao2_ref(cur, -1);
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
if (use_weight)
AST_LIST_UNLOCK(&queues);
free(tmp);
@@ -2902,7 +2914,7 @@
if (!(dialed_interfaces = ast_calloc(1, sizeof(*dialed_interfaces)))) {
ao2_iterator_destroy(&memi);
ao2_ref(cur, -1);
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
if (use_weight)
AST_LIST_UNLOCK(&queues);
free(tmp);
@@ -2940,7 +2952,7 @@
if (!(di = ast_calloc(1, sizeof(*di) + strlen(cur->interface)))) {
ao2_iterator_destroy(&memi);
ao2_ref(cur, -1);
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
if (use_weight)
AST_LIST_UNLOCK(&queues);
free(tmp);
@@ -2980,7 +2992,7 @@
else
to = (qe->parent->timeout) ? qe->parent->timeout * 1000 : -1;
++qe->pending;
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
ring_one(qe, outgoing, &numbusies);
if (use_weight)
AST_LIST_UNLOCK(&queues);
@@ -2996,11 +3008,11 @@
ast_channel_datastore_free(datastore);
}
ast_channel_unlock(qe->chan);
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
if (qe->parent->strategy == QUEUE_STRATEGY_RRMEMORY) {
store_next(qe, outgoing);
}
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
peer = lpeer ? lpeer->chan : NULL;
if (!peer) {
qe->pending = 0;
@@ -3038,9 +3050,9 @@
/* Update parameters for the queue */
time(&now);
recalc_holdtime(qe, (now - qe->start));
- ast_mutex_lock(&qe->parent->lock);
+ ao2_lock(qe->parent);
callcompletedinsl = ((now - qe->start) <= qe->parent->servicelevel);
- ast_mutex_unlock(&qe->parent->lock);
+ ao2_unlock(qe->parent);
member = lpeer->member;
/* Increment the refcount for this member, since we're going to be using it for awhile in here. */
ao2_ref(member, 1);
@@ -3411,9 +3423,9 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if (strcmp(q->name, queuename)) {
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
continue;
}
@@ -3422,7 +3434,7 @@
if (!mem->dynamic) {
res = RES_NOT_DYNAMIC;
ao2_ref(mem, -1);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
break;
}
q->membercount--;
@@ -3442,7 +3454,7 @@
} else {
res = RES_EXISTS;
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
break;
}
@@ -3465,7 +3477,7 @@
AST_LIST_LOCK(&queues);
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if ((old_member = interface_exists(q, interface)) == NULL) {
if ((new_member = create_queue_member(interface, membername, penalty, paused, state_interface))) {
add_to_interfaces(new_member->state_interface);
@@ -3501,7 +3513,7 @@
ao2_ref(old_member, -1);
res = RES_EXISTS;
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
AST_LIST_UNLOCK(&queues);
return res;
@@ -3520,7 +3532,7 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if (ast_strlen_zero(queuename) || !strcasecmp(q->name, queuename)) {
if ((mem = interface_exists(q, interface))) {
found++;
@@ -3545,7 +3557,7 @@
ao2_ref(mem, -1);
}
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
AST_LIST_UNLOCK(&queues);
@@ -3579,10 +3591,10 @@
queue_name = entry->key + strlen(pm_family) + 2;
AST_LIST_TRAVERSE(&queues, cur_queue, list) {
- ast_mutex_lock(&cur_queue->lock);
+ ao2_lock(cur_queue);
if (!strcmp(queue_name, cur_queue->name))
break;
- ast_mutex_unlock(&cur_queue->lock);
+ ao2_unlock(cur_queue);
}
if (!cur_queue)
@@ -3595,7 +3607,7 @@
ast_db_del(pm_family, queue_name);
continue;
} else
- ast_mutex_unlock(&cur_queue->lock);
+ ao2_unlock(cur_queue);
if (ast_db_get(pm_family, queue_name, queue_data, PM_MAX_LEN))
continue;
@@ -3972,7 +3984,7 @@
AST_APP_ARG(agi);
);
/* Our queue entry */
- struct queue_ent qe;
+ struct queue_ent qe = { 0 };
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "Queue requires an argument: queuename[|options[|URL[|announceoverride[|timeout[|agi]]]]]\n");
@@ -3985,7 +3997,6 @@
lu = ast_module_user_add(chan);
/* Setup our queue entry */
- memset(&qe, 0, sizeof(qe));
qe.start = time(NULL);
/* set the expire time based on the supplied timeout; */
@@ -4213,6 +4224,12 @@
set_queue_result(chan, reason);
res = 0;
}
+ if (qe.parent) {
+ /* every queue_ent is given a reference to it's parent call_queue when it joins the queue.
+ * This ref must be taken away right before the queue_ent is destroyed. In this case
+ * the queue_ent is about to be returned on the stack */
+ ao2_ref(qe.parent, -1);
+ }
ast_module_user_remove(lu);
return res;
@@ -4236,7 +4253,7 @@
lu = ast_module_user_add(chan);
if ((q = load_realtime_queue(data))) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((m = ao2_iterator_next(&mem_iter))) {
/* Count the agents who are logged in and presently answering calls */
@@ -4246,7 +4263,7 @@
ao2_ref(m, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
} else
ast_log(LOG_WARNING, "queue %s was not found\n", data);
@@ -4275,7 +4292,7 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
if (!strcasecmp(q->name, data)) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
break;
}
}
@@ -4283,7 +4300,7 @@
if (q) {
count = q->count;
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
} else if ((var = ast_load_realtime("queues", "name", data, NULL))) {
/* if the queue is realtime but was not found in memory, this
* means that the queue had been deleted from memory since it was
@@ -4318,7 +4335,7 @@
AST_LIST_LOCK(&queues);
AST_LIST_TRAVERSE(&queues, q, list) {
if (!strcasecmp(q->name, data)) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
break;
}
}
@@ -4345,7 +4362,7 @@
ao2_ref(m, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
} else
ast_log(LOG_WARNING, "queue %s was not found\n", data);
@@ -4459,12 +4476,12 @@
new = 0;
if (q) {
if (!new)
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
/* Check if a queue with this name already exists */
if (q->found) {
ast_log(LOG_WARNING, "Queue '%s' already defined! Skipping!\n", cat);
if (!new)
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
continue;
}
/* Re-initialize the queue, and clear statistics */
@@ -4564,7 +4581,7 @@
if (new) {
AST_LIST_INSERT_HEAD(&queues, q, list);
} else
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
}
}
@@ -4572,12 +4589,9 @@
AST_LIST_TRAVERSE_SAFE_BEGIN(&queues, q, list) {
if (q->dead) {
AST_LIST_REMOVE_CURRENT(&queues, list);
- if (!q->count)
- destroy_queue(q);
- else
- ast_log(LOG_DEBUG, "XXX Leaking a little memory :( XXX\n");
+ ao2_ref(q, -1);
} else {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((cur = ao2_iterator_next(&mem_iter))) {
if (cur->dynamic)
@@ -4586,7 +4600,7 @@
ao2_ref(cur, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
}
AST_LIST_TRAVERSE_SAFE_END;
@@ -4647,10 +4661,10 @@
return RESULT_SUCCESS;
}
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
if (queue_show) {
if (strcasecmp(q->name, argv[2]) != 0) {
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
if (!AST_LIST_NEXT(q, list)) {
ast_cli(fd, "No such queue: %s.%s",argv[2], term);
break;
@@ -4737,7 +4751,7 @@
astman_append(s, "%s", term);
else
ast_cli(fd, "%s", term);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
if (queue_show)
break;
}
@@ -4811,7 +4825,7 @@
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
/* List queue properties */
if (ast_strlen_zero(queuefilter) || !strcmp(q->name, queuefilter)) {
@@ -4870,7 +4884,7 @@
(long) (now - qe->start), idText);
}
}
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
astman_append(s,
@@ -5139,13 +5153,13 @@
/* here is the case for 3, <member> */
if (!AST_LIST_EMPTY(&queues)) { /* XXX unnecessary ? the traverse does that for us */
AST_LIST_TRAVERSE(&queues, q, list) {
- ast_mutex_lock(&q->lock);
+ ao2_lock(q);
mem_iter = ao2_iterator_init(q->members, 0);
while ((m = ao2_iterator_next(&mem_iter))) {
if (++which > state) {
char *tmp;
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
tmp = ast_strdup(m->interface);
ao2_ref(m, -1);
return tmp;
@@ -5153,7 +5167,7 @@
ao2_ref(m, -1);
}
ao2_iterator_destroy(&mem_iter);
- ast_mutex_unlock(&q->lock);
+ ao2_unlock(q);
}
}
More information about the svn-commits
mailing list