/**
* gst_object_restore_thyself:
* @object: a #GstObject to load into
* @self: The XML node to load @object from
*
* Restores @object with the data from the parent XML node.
*/
void
gst_object_restore_thyself (GstObject * object, xmlNodePtr self)
{
GstObjectClass *oclass;
g_return_if_fail (GST_IS_OBJECT (object));
g_return_if_fail (self != NULL);
oclass = GST_OBJECT_GET_CLASS (object);
if (oclass->restore_thyself)
oclass->restore_thyself (object, self);
}
/**
* gst_object_save_thyself:
* @object: a #GstObject to save
* @parent: The parent XML node to save @object into
*
* Saves @object into the parent XML node.
*
* Returns: the new xmlNodePtr with the saved object
*/
xmlNodePtr
gst_object_save_thyself (GstObject * object, xmlNodePtr parent)
{
GstObjectClass *oclass;
g_return_val_if_fail (GST_IS_OBJECT (object), parent);
g_return_val_if_fail (parent != NULL, parent);
oclass = GST_OBJECT_GET_CLASS (object);
if (oclass->save_thyself)
oclass->save_thyself (object, parent);
g_signal_emit (object, gst_object_signals[OBJECT_SAVED], 0, parent);
return parent;
}
/* Changing a GObject property of a GstObject will result in "deep_notify"
* signals being emitted by the object itself, as well as in each parent
* object. This is so that an application can connect a listener to the
* top-level bin to catch property-change notifications for all contained
* elements.
*
* This function is not MT safe in glib < 2.8 so we need to lock it with a
* classwide mutex in that case.
*
* MT safe.
*/
static void
gst_object_dispatch_properties_changed (GObject * object,
guint n_pspecs, GParamSpec ** pspecs)
{
GstObject *gst_object, *parent, *old_parent;
guint i;
gchar *name, *debug_name;
GstObjectClass *klass;
/* we fail when this is not a GstObject */
g_return_if_fail (GST_IS_OBJECT (object));
klass = GST_OBJECT_GET_CLASS (object);
/* do the standard dispatching */
G_OBJECT_CLASS (parent_class)->dispatch_properties_changed (object, n_pspecs,
pspecs);
gst_object = GST_OBJECT_CAST (object);
name = gst_object_get_name (gst_object);
debug_name = GST_STR_NULL (name);
/* now let the parent dispatch those, too */
parent = gst_object_get_parent (gst_object);
while (parent) {
for (i = 0; i < n_pspecs; i++) {
GST_LOG_OBJECT (parent, "deep notification from %s (%s)",
debug_name, pspecs[i]->name);
g_signal_emit (parent, gst_object_signals[DEEP_NOTIFY],
g_quark_from_string (pspecs[i]->name), GST_OBJECT_CAST (object),
pspecs[i]);
}
old_parent = parent;
parent = gst_object_get_parent (old_parent);
gst_object_unref (old_parent);
}
g_free (name);
}
EXPORT_C
#endif
gchar *
gst_object_get_path_string (GstObject * object)
{
GSList *parentage;
GSList *parents;
void *parent;
gchar *prevpath, *path;
gchar *component;
gchar *separator;
/* ref object before adding to list */
gst_object_ref (object);
parentage = g_slist_prepend (NULL, object);
path = g_strdup ("");
/* first walk the object hierarchy to build a list of the parents,
* be carefull here with refcounting. */
do {
if (GST_IS_OBJECT (object)) {
parent = gst_object_get_parent (object);
/* add parents to list, refcount remains increased while
* we handle the object */
if (parent)
parentage = g_slist_prepend (parentage, parent);
} else {
break;
}
object = parent;
} while (object != NULL);
/* then walk the parent list and print them out. we need to
* decrease the refcounting on each element after we handled
* it. */
for (parents = parentage; parents; parents = g_slist_next (parents)) {
if (GST_IS_OBJECT (parents->data)) {
GstObject *item = GST_OBJECT_CAST (parents->data);
GstObjectClass *oclass = GST_OBJECT_GET_CLASS (item);
component = gst_object_get_name (item);
separator = oclass->path_string_separator;
/* and unref now */
gst_object_unref (item);
} else {
component = g_strdup_printf ("%p", parents->data);
separator = "/";
}
prevpath = path;
path = g_strjoin (separator, prevpath, component, NULL);
g_free (prevpath);
g_free (component);
}
g_slist_free (parentage);
return path;
}
