+
+ return olddata_val != newdata;
+}
+
+/**
+ * gst_mini_object_steal:
+ * @olddata: (inout) (transfer full): pointer to a pointer to a mini-object to
+ * be stolen
+ *
+ * Replace the current #GstMiniObject pointer to by @olddata with NULL and
+ * return the old value.
+ *
+ * Returns: the #GstMiniObject at @oldata
+ */
+GstMiniObject *
+gst_mini_object_steal (GstMiniObject ** olddata)
+{
+ GstMiniObject *olddata_val;
+
+ g_return_val_if_fail (olddata != NULL, NULL);
+
+ GST_CAT_TRACE (GST_CAT_REFCOUNTING, "steal %p (%d)",
+ *olddata, *olddata ? (*olddata)->refcount : 0);
+
+ do {
+ olddata_val = g_atomic_pointer_get ((gpointer *) olddata);
+ if (olddata_val == NULL)
+ break;
+ } while (G_UNLIKELY (!g_atomic_pointer_compare_and_exchange ((gpointer *)
+ olddata, olddata_val, NULL)));
+
+ return olddata_val;
+}
+
+/**
+ * gst_mini_object_take:
+ * @olddata: (inout) (transfer full): pointer to a pointer to a mini-object to
+ * be replaced
+ *
+ * Modifies a pointer to point to a new mini-object. The modification
+ * is done atomically. This version is similar to gst_mini_object_replace()
+ * except that it does not increase the refcount of @newdata and thus
+ * takes ownership of @newdata.
+ *
+ * Either @newdata and the value pointed to by @olddata may be NULL.
+ *
+ * Returns: TRUE if @newdata was different from @olddata
+ */
+gboolean
+gst_mini_object_take (GstMiniObject ** olddata, GstMiniObject * newdata)
+{
+ GstMiniObject *olddata_val;
+
+ g_return_val_if_fail (olddata != NULL, FALSE);
+
+ GST_CAT_TRACE (GST_CAT_REFCOUNTING, "take %p (%d) with %p (%d)",
+ *olddata, *olddata ? (*olddata)->refcount : 0,
+ newdata, newdata ? newdata->refcount : 0);
+
+ do {
+ olddata_val = g_atomic_pointer_get ((gpointer *) olddata);
+ if (G_UNLIKELY (olddata_val == newdata))
+ break;
+ } while (G_UNLIKELY (!g_atomic_pointer_compare_and_exchange ((gpointer *)
+ olddata, olddata_val, newdata)));
+
+ if (olddata_val)
+ gst_mini_object_unref (olddata_val);
+
+ return olddata_val != newdata;