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bufferpool: Deactivate pool and get rid of references to other objects from dispose instead of finalize

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During dispose the pool will still have a reference count of 1 and all
API on it can still be safely called.

Subclasses will have already freed their own data before finalize is
called but would nonetheless be called into again via the pool
deactivation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1661>
This commit is contained in:
Sebastian Dröge 2022-02-07 09:46:46 +02:00 committed by GStreamer Marge Bot
parent 4345814e31
commit f288f7043f
1 changed files with 19 additions and 3 deletions
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22
subprojects/gstreamer/gst/gstbufferpool.c
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@ -112,6 +112,7 @@ struct _GstBufferPoolPrivate
GstAllocationParams params;
};
static void gst_buffer_pool_dispose (GObject * object);
static void gst_buffer_pool_finalize (GObject * object);
G_DEFINE_TYPE_WITH_PRIVATE (GstBufferPool, gst_buffer_pool, GST_TYPE_OBJECT);
@ -133,6 +134,7 @@ gst_buffer_pool_class_init (GstBufferPoolClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->dispose = gst_buffer_pool_dispose;
gobject_class->finalize = gst_buffer_pool_finalize;
klass->start = default_start;
@ -177,6 +179,23 @@ gst_buffer_pool_init (GstBufferPool * pool)
GST_DEBUG_OBJECT (pool, "created");
}
static void
gst_buffer_pool_dispose (GObject * object)
{
GstBufferPool *pool;
GstBufferPoolPrivate *priv;
pool = GST_BUFFER_POOL_CAST (object);
priv = pool->priv;
GST_DEBUG_OBJECT (pool, "%p dispose", pool);
gst_buffer_pool_set_active (pool, FALSE);
gst_clear_object (&priv->allocator);
G_OBJECT_CLASS (gst_buffer_pool_parent_class)->dispose (object);
}
static void
gst_buffer_pool_finalize (GObject * object)
{
@ -188,13 +207,10 @@ gst_buffer_pool_finalize (GObject * object)
GST_DEBUG_OBJECT (pool, "%p finalize", pool);
gst_buffer_pool_set_active (pool, FALSE);
gst_atomic_queue_unref (priv->queue);
gst_poll_free (priv->poll);
gst_structure_free (priv->config);
g_rec_mutex_clear (&priv->rec_lock);
if (priv->allocator)
gst_object_unref (priv->allocator);
G_OBJECT_CLASS (gst_buffer_pool_parent_class)->finalize (object);
}