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gst/gstthread.c: Lock the iteration and the state change so that automatic negotiation and fixation does not happen a...

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Original commit message from CVS:
* gst/gstthread.c: (gst_thread_init), (gst_thread_change_state),
(gst_thread_main_loop):
Lock the iteration and the state change so that automatic
negotiation and fixation does not happen at the same time
as the in stream negotiation.
This commit is contained in:
Wim Taymans 2004-10-06 09:42:27 +00:00
parent 7520601a63
commit 031d317274
3 changed files with 16 additions and 1 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2004-10-06 Wim Taymans <wim at fluendo dot com>
* gst/gstthread.c: (gst_thread_init), (gst_thread_change_state),
(gst_thread_main_loop):
Lock the iteration and the state change so that automatic
negotiation and fixation does not happen at the same time
as the in stream negotiation.
2004-10-05 Thomas Vander Stichele <thomas at apestaart dot org>
* configure.ac:

5
gst/gstthread.c
View file

@ -206,6 +206,7 @@ gst_thread_init (GTypeInstance * instance, gpointer g_class)
thread->lock = g_mutex_new ();
thread->cond = g_cond_new ();
thread->iterate_lock = g_mutex_new ();
thread->thread_id = (GThread *) NULL; /* set in NULL -> READY */
thread->priority = G_THREAD_PRIORITY_NORMAL;
@ -552,11 +553,13 @@ gst_thread_change_state (GstElement * element)
GST_LOG_OBJECT (thread, "unlocking lock");
g_mutex_unlock (thread->lock);
g_mutex_lock (thread->iterate_lock);
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
ret = GST_ELEMENT_CLASS (parent_class)->change_state (GST_ELEMENT (thread));
} else {
ret = GST_STATE_SUCCESS;
}
g_mutex_unlock (thread->iterate_lock);
return ret;
@ -664,7 +667,9 @@ gst_thread_main_loop (void *arg)
gboolean status;
g_mutex_unlock (thread->lock);
g_mutex_lock (thread->iterate_lock);
status = gst_bin_iterate (GST_BIN (thread));
g_mutex_unlock (thread->iterate_lock);
g_mutex_lock (thread->lock);
if (!status) {

4
gst/gstthread.h
View file

@ -61,7 +61,9 @@ struct _GstThread {
GMutex *lock; /* thread lock/condititon pairs */
GCond *cond; /* used to control the thread */
gpointer _gst_reserved[GST_PADDING];
GMutex *iterate_lock; /* lock iteration in state change */
gpointer _gst_reserved[GST_PADDING-1];
};
struct _GstThreadClass {