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playbin2: Use a recursive mutex for the playbin lock

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This lock is taken when activating a group, which could result in
calling the autoplug-continue callback, which also needs this lock
to access the sinks.

See bug #642174.
This commit is contained in:
Sebastian Dröge 2011-02-18 10:57:40 +01:00
parent 6ca5bb72a4
commit 1351597381
1 changed files with 7 additions and 6 deletions
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13
gst/playback/gstplaybin2.c
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@ -322,9 +322,9 @@ struct _GstSourceGroup
GstSourceSelect selector[GST_PLAY_SINK_TYPE_LAST];
};
#define GST_PLAY_BIN_GET_LOCK(bin) (((GstPlayBin*)(bin))->lock)
#define GST_PLAY_BIN_LOCK(bin) (g_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin)))
#define GST_PLAY_BIN_UNLOCK(bin) (g_mutex_unlock (GST_PLAY_BIN_GET_LOCK(bin)))
#define GST_PLAY_BIN_GET_LOCK(bin) (&((GstPlayBin*)(bin))->lock)
#define GST_PLAY_BIN_LOCK(bin) (g_static_rec_mutex_lock (GST_PLAY_BIN_GET_LOCK(bin)))
#define GST_PLAY_BIN_UNLOCK(bin) (g_static_rec_mutex_unlock (GST_PLAY_BIN_GET_LOCK(bin)))
/* lock to protect dynamic callbacks, like no-more-pads */
#define GST_PLAY_BIN_DYN_LOCK(bin) g_mutex_lock ((bin)->dyn_lock)
@ -355,7 +355,7 @@ struct _GstPlayBin
{
GstPipeline parent;
GMutex *lock; /* to protect group switching */
GStaticRecMutex lock; /* to protect group switching */
/* the groups, we use a double buffer to switch between current and next */
GstSourceGroup groups[2]; /* array with group info */
@ -1174,7 +1174,7 @@ gst_play_bin_update_elements_list (GstPlayBin * playbin)
static void
gst_play_bin_init (GstPlayBin * playbin)
{
playbin->lock = g_mutex_new ();
g_static_rec_mutex_init (&playbin->lock);
playbin->dyn_lock = g_mutex_new ();
/* assume we can create a selector */
@ -1229,7 +1229,8 @@ gst_play_bin_finalize (GObject * object)
if (playbin->elements)
gst_plugin_feature_list_free (playbin->elements);
g_mutex_free (playbin->lock);
g_static_rec_mutex_free (&playbin->lock);
g_mutex_free (playbin->dyn_lock);
g_mutex_free (playbin->elements_lock);