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rtptimerqueue: Fix leak on timer collision

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While the caller should make sure this does not happen, make sure timer
collision are not silently ignored and leaked.

Fixes #726

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/616>
This commit is contained in:
Nicolas Dufresne 2020-06-08 17:41:13 -04:00
parent b4f421e9aa
commit 5b2ad31583
1 changed files with 6 additions and 3 deletions
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9
gst/rtpmanager/rtptimerqueue.c
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@ -391,22 +391,25 @@ rtp_timer_queue_new (void)
/** /**
* rtp_timer_queue_insert: * rtp_timer_queue_insert:
* @queue: the #RtpTimerQueue object * @queue: the #RtpTimerQueue object
* @timer: the #RtpTimer to insert * @timer: (transfer full): the #RtpTimer to insert
* *
* Insert a timer into the queue. Earliest timer are at the head and then * Insert a timer into the queue. Earliest timer are at the head and then
* timer are sorted by seqnum (smaller seqnum first). This function is o(n) * timer are sorted by seqnum (smaller seqnum first). This function is o(n)
* but it is expected that most timers added are schedule later, in which case * but it is expected that most timers added are schedule later, in which case
* the insertion will be faster. * the insertion will be faster.
* *
* Returns: %FLASE is a timer with the same seqnum already existed * Returns: %FALSE if a timer with the same seqnum already existed
*/ */
gboolean gboolean
rtp_timer_queue_insert (RtpTimerQueue * queue, RtpTimer * timer) rtp_timer_queue_insert (RtpTimerQueue * queue, RtpTimer * timer)
{ {
g_return_val_if_fail (timer->queued == FALSE, FALSE); g_return_val_if_fail (timer->queued == FALSE, FALSE);
if (rtp_timer_queue_find (queue, timer->seqnum)) if (rtp_timer_queue_find (queue, timer->seqnum)) {
rtp_timer_free (timer);
GST_WARNING ("Timer queue collision, freeing duplicate.");
return FALSE; return FALSE;
}
if (timer->timeout == -1) if (timer->timeout == -1)
rtp_timer_queue_insert_head (queue, timer); rtp_timer_queue_insert_head (queue, timer);