mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-24 02:31:03 +00:00
Code Issues 1 Projects Releases Wiki Activity

multiqueue: Increment unique item counter with atomic operations

Browse source 
Before it was only protected by the stream lock but every pad
has its own stream lock, making the protection rather useless.
This commit is contained in:
Sebastian Dröge 2011-03-21 17:52:13 +01:00
parent 9e36a51bac
commit 383cac91b1
2 changed files with 4 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
plugins/elements/gstmultiqueue.c
View file

@ -1229,7 +1229,7 @@ gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
goto was_eos;
/* Get a unique incrementing id */
curid = mq->counter++;
curid = g_atomic_int_exchange_and_add ((gint *) & mq->counter, 1);
GST_LOG_OBJECT (mq, "SingleQueue %d : about to enqueue buffer %p with id %d",
sq->id, buffer, curid);
@ -1334,9 +1334,8 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
if (sq->is_eos)
goto was_eos;
/* Get an unique incrementing id. protected with the STREAM_LOCK, unserialized
* events already got pushed and don't end up in the queue. */
curid = mq->counter++;
/* Get an unique incrementing id. */
curid = g_atomic_int_exchange_and_add ((gint *) & mq->counter, 1);
item = gst_multi_queue_event_item_new ((GstMiniObject *) event, curid);

2
plugins/elements/gstmultiqueue.h
View file

@ -63,7 +63,7 @@ struct _GstMultiQueue {
gboolean buffering;
gint percent;
guint32 counter; /* incoming object counter, protected with STREAM_LOCK */
guint32 counter; /* incoming object counter, use atomic accesses */
guint32 highid; /* contains highest id of last outputted object */
GMutex * qlock; /* Global queue lock (vs object lock or individual */