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gsttaskpool: Do not block tasks while cleaning up the taskpool

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There is a deadlock if any thread from the pool tries to push
a new task while other thread is waiting for the pool of threads
to finish. With this patch the thread will get an error when it
tries to add a new task while the taskpool is being cleaned up.
This commit is contained in:
Santiago Carot-Nemesio 2019-03-08 16:19:29 +01:00
parent b5286f0560
commit 706e10ad05
1 changed files with 8 additions and 4 deletions
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12
gst/gsttaskpool.c
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@ -81,15 +81,19 @@ default_prepare (GstTaskPool * pool, GError ** error)
static void
default_cleanup (GstTaskPool * pool)
{
GThreadPool *pool_;
GST_OBJECT_LOCK (pool);
if (pool->pool) {
pool_ = pool->pool;
pool->pool = NULL;
GST_OBJECT_UNLOCK (pool);
if (pool_) {
/* Shut down all the threads, we still process the ones scheduled
* because the unref happens in the thread function.
* Also wait for currently running ones to finish. */
g_thread_pool_free (pool->pool, FALSE, TRUE);
pool->pool = NULL;
g_thread_pool_free (pool_, FALSE, TRUE);
}
GST_OBJECT_UNLOCK (pool);
}
static gpointer