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Boo!
Original commit message from CVS: 2005-10-31 Andy Wingo <wingo@pobox.com> * Boo! * gst/gstqueue.c (gst_queue_chain): Fix downstream leaky mode. * gst/gstobject.c (gst_object_dispatch_properties_changed): No need to serialize property notifications on GLib 2.8. GLib 2.6 has the possibility of deadlocks here if code calling notify() or set() has a lock that can be taken in another notify handler (ABBA with class lock and e.g. python GIL state lock).
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4 changed files with 34 additions and 24 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2005-10-31 Andy Wingo <wingo@pobox.com>
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* Boo!
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* gst/gstqueue.c (gst_queue_chain): Fix downstream leaky mode.
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* gst/gstobject.c (gst_object_dispatch_properties_changed): No
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need to serialize property notifications on GLib 2.8. GLib 2.6 has
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the possibility of deadlocks here if code calling notify() or
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set() has a lock that can be taken in another notify handler (ABBA
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with class lock and e.g. python GIL state lock).
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2005-10-28 Julien MOUTTE <julien@moutte.net>
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* gst/gstbus.c: Doc updates.
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@ -575,7 +575,10 @@ gst_object_dispatch_properties_changed (GObject * object,
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klass = GST_OBJECT_GET_CLASS (object);
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#ifndef GST_HAVE_GLIB_2_8
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GST_CLASS_LOCK (klass);
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#endif
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/* do the standard dispatching */
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PATCH_REFCOUNT (object);
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G_OBJECT_CLASS (parent_class)->dispatch_properties_changed (object, n_pspecs,
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@ -617,7 +620,10 @@ gst_object_dispatch_properties_changed (GObject * object,
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gst_object_unref (old_parent);
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}
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g_free (name);
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#ifndef GST_HAVE_GLIB_2_8
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GST_CLASS_UNLOCK (klass);
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#endif
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}
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/**
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@ -653,7 +653,8 @@ gst_queue_chain (GstPad * pad, GstBuffer * buffer)
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GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
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"queue is full, leaking buffer on downstream end");
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for (item = queue->queue->head; item != NULL; item = item->next) {
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for (item = g_queue_peek_head_link (queue->queue); item;
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item = item->next) {
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if (GST_IS_BUFFER (item->data)) {
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leak = item->data;
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break;
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@ -664,22 +665,17 @@ gst_queue_chain (GstPad * pad, GstBuffer * buffer)
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* in here. That cannot happen, since we had >= 1 bufs */
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g_assert (leak);
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/* Now remove it from the list, fixing up the GQueue
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* CHECKME: is a queue->head the first or the last item? */
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item = g_list_delete_link (queue->queue->head, item);
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queue->queue->head = g_list_first (item);
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queue->queue->tail = g_list_last (item);
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queue->queue->length--;
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/* Now remove the link from the queue */
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g_queue_delete_link (queue->queue, item);
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/* and unref the buffer at the end. Twice, because we keep a ref
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* to make things read-only. Also keep our list uptodate. */
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queue->cur_level.bytes -= GST_BUFFER_SIZE (buffer);
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queue->cur_level.bytes -= GST_BUFFER_SIZE (leak);
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queue->cur_level.buffers--;
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if (GST_BUFFER_DURATION (buffer) != GST_CLOCK_TIME_NONE)
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queue->cur_level.time -= GST_BUFFER_DURATION (buffer);
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if (GST_BUFFER_DURATION (leak) != GST_CLOCK_TIME_NONE)
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queue->cur_level.time -= GST_BUFFER_DURATION (leak);
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gst_buffer_unref (buffer);
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gst_buffer_unref (buffer);
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gst_buffer_unref (leak);
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break;
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}
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@ -653,7 +653,8 @@ gst_queue_chain (GstPad * pad, GstBuffer * buffer)
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GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
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"queue is full, leaking buffer on downstream end");
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for (item = queue->queue->head; item != NULL; item = item->next) {
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for (item = g_queue_peek_head_link (queue->queue); item;
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item = item->next) {
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if (GST_IS_BUFFER (item->data)) {
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leak = item->data;
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break;
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@ -664,22 +665,17 @@ gst_queue_chain (GstPad * pad, GstBuffer * buffer)
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* in here. That cannot happen, since we had >= 1 bufs */
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g_assert (leak);
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/* Now remove it from the list, fixing up the GQueue
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* CHECKME: is a queue->head the first or the last item? */
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item = g_list_delete_link (queue->queue->head, item);
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queue->queue->head = g_list_first (item);
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queue->queue->tail = g_list_last (item);
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queue->queue->length--;
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/* Now remove the link from the queue */
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g_queue_delete_link (queue->queue, item);
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/* and unref the buffer at the end. Twice, because we keep a ref
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* to make things read-only. Also keep our list uptodate. */
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queue->cur_level.bytes -= GST_BUFFER_SIZE (buffer);
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queue->cur_level.bytes -= GST_BUFFER_SIZE (leak);
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queue->cur_level.buffers--;
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if (GST_BUFFER_DURATION (buffer) != GST_CLOCK_TIME_NONE)
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queue->cur_level.time -= GST_BUFFER_DURATION (buffer);
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if (GST_BUFFER_DURATION (leak) != GST_CLOCK_TIME_NONE)
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queue->cur_level.time -= GST_BUFFER_DURATION (leak);
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gst_buffer_unref (buffer);
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gst_buffer_unref (buffer);
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gst_buffer_unref (leak);
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break;
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}
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