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multiqueue: Add another check for the flushing flag after taking the lock

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This prevents another potential deadlock when flushing the pad
at exactly the right time.
This commit is contained in:
Sebastian Dröge 2011-04-08 09:07:59 +02:00
parent 80eb160e0f
commit 6d97652903
1 changed files with 7 additions and 0 deletions
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7
plugins/elements/gstmultiqueue.c
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@ -1115,6 +1115,13 @@ gst_multi_queue_loop (GstPad * pad)
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
/* Check again if we're flushing after the lock is taken,
* the flush flag might have been changed in the meantime */
if (sq->flushing) {
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
goto out_flushing;
}
/* Update the nextid so other threads know when to wake us up */
sq->nextid = newid;