2000-12-28 22:12:02 +00:00
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/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstobject.c: Fundamental class used for all of GStreamer
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2000-01-30 09:03:00 +00:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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2000-12-28 22:12:02 +00:00
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#include "gst_private.h"
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2000-12-15 01:57:34 +00:00
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#include "gstobject.h"
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2000-01-30 09:03:00 +00:00
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/* Object signals and args */
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enum {
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PARENT_SET,
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2001-10-17 10:21:27 +00:00
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#ifndef GST_DISABLE_LOADSAVE_REGISTRY
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2001-01-30 23:53:04 +00:00
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OBJECT_SAVED,
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2001-06-24 21:18:28 +00:00
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#endif
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2000-01-30 09:03:00 +00:00
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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2001-10-24 19:11:11 +00:00
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ARG_NAME,
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2000-01-30 09:03:00 +00:00
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/* FILL ME */
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};
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2001-01-30 23:53:04 +00:00
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enum {
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SO_OBJECT_LOADED,
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SO_LAST_SIGNAL
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};
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2001-10-17 10:21:27 +00:00
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GType _gst_object_type = 0;
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2001-01-30 23:53:04 +00:00
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typedef struct _GstSignalObject GstSignalObject;
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typedef struct _GstSignalObjectClass GstSignalObjectClass;
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2001-06-25 01:20:11 +00:00
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static GType gst_signal_object_get_type (void);
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2001-01-30 23:53:04 +00:00
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static void gst_signal_object_class_init (GstSignalObjectClass *klass);
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static void gst_signal_object_init (GstSignalObject *object);
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static guint gst_signal_object_signals[SO_LAST_SIGNAL] = { 0 };
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2000-01-30 09:03:00 +00:00
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2001-01-29 00:06:02 +00:00
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static void gst_object_class_init (GstObjectClass *klass);
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static void gst_object_init (GstObject *object);
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2000-01-30 09:03:00 +00:00
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2001-10-24 19:11:11 +00:00
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static void gst_object_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec);
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static void gst_object_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec);
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2001-09-28 19:16:02 +00:00
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static void gst_object_dispose (GObject *object);
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2001-06-25 01:20:11 +00:00
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static void gst_object_finalize (GObject *object);
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2001-05-25 21:00:07 +00:00
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2001-06-25 01:20:11 +00:00
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static GObjectClass *parent_class = NULL;
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2000-01-30 09:03:00 +00:00
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static guint gst_object_signals[LAST_SIGNAL] = { 0 };
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2001-06-25 01:20:11 +00:00
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GType
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2001-01-29 00:06:02 +00:00
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gst_object_get_type (void)
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{
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2001-10-17 10:21:27 +00:00
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if (!_gst_object_type) {
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2001-06-25 01:20:11 +00:00
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static const GTypeInfo object_info = {
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sizeof (GstObjectClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_object_class_init,
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NULL,
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NULL,
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sizeof (GstObject),
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32,
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(GInstanceInitFunc) gst_object_init,
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2001-09-14 22:16:47 +00:00
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NULL
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2000-01-30 09:03:00 +00:00
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};
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2001-10-17 10:21:27 +00:00
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_gst_object_type = g_type_register_static (G_TYPE_OBJECT, "GstObject", &object_info, G_TYPE_FLAG_ABSTRACT);
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2000-01-30 09:03:00 +00:00
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}
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2001-10-17 10:21:27 +00:00
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return _gst_object_type;
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2000-01-30 09:03:00 +00:00
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}
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2001-01-29 00:06:02 +00:00
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static void
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gst_object_class_init (GstObjectClass *klass)
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{
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2001-06-25 01:20:11 +00:00
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GObjectClass *gobject_class;
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2000-01-30 09:03:00 +00:00
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2001-06-25 01:20:11 +00:00
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gobject_class = (GObjectClass*) klass;
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2000-01-30 09:03:00 +00:00
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2001-06-25 01:20:11 +00:00
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parent_class = g_type_class_ref (G_TYPE_OBJECT);
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2000-01-30 09:03:00 +00:00
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2001-10-25 21:24:09 +00:00
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_object_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_object_get_property);
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2002-01-01 13:51:04 +00:00
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NAME,
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2001-10-24 19:11:11 +00:00
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g_param_spec_string ("name", "Name", "The name of the object",
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NULL, G_PARAM_READWRITE));
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2000-01-30 09:03:00 +00:00
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gst_object_signals[PARENT_SET] =
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2002-01-01 13:51:04 +00:00
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g_signal_new ("parent_set", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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2001-06-25 01:20:11 +00:00
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G_STRUCT_OFFSET (GstObjectClass, parent_set), NULL, NULL,
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2002-01-01 13:51:04 +00:00
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g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1,
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2001-06-25 01:20:11 +00:00
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G_TYPE_OBJECT);
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2001-10-17 10:21:27 +00:00
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#ifndef GST_DISABLE_LOADSAVE_REGISTRY
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2001-01-30 23:53:04 +00:00
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gst_object_signals[OBJECT_SAVED] =
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2002-01-01 13:51:04 +00:00
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g_signal_new ("object_saved", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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2001-06-25 01:20:11 +00:00
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G_STRUCT_OFFSET (GstObjectClass, object_saved), NULL, NULL,
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2002-01-01 13:51:04 +00:00
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g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
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2001-06-25 01:20:11 +00:00
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G_TYPE_POINTER);
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2001-06-24 21:18:28 +00:00
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#endif
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2001-01-29 00:06:02 +00:00
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klass->path_string_separator = "/";
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2001-12-14 22:59:21 +00:00
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/* FIXME!!! */
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/* klass->signal_object = g_object_new(gst_signal_object_get_type (,NULL)); */
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2001-05-25 21:00:07 +00:00
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2001-09-28 19:16:02 +00:00
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gobject_class->dispose = gst_object_dispose;
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2001-06-25 01:20:11 +00:00
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gobject_class->finalize = gst_object_finalize;
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2000-01-30 09:03:00 +00:00
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}
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2001-01-29 00:06:02 +00:00
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static void
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gst_object_init (GstObject *object)
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{
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2000-01-30 09:03:00 +00:00
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object->lock = g_mutex_new();
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object->parent = NULL;
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2001-10-24 19:20:58 +00:00
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object->name = NULL;
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2001-05-25 21:00:07 +00:00
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object->flags = 0;
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GST_FLAG_SET (object, GST_FLOATING);
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2000-01-30 09:03:00 +00:00
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}
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2001-05-25 21:00:07 +00:00
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/**
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* gst_object_ref:
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* @object: GstObject to reference
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*
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* Increments the refence count on the object.
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2001-05-27 14:37:29 +00:00
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*
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* Returns: A pointer to the object
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2001-05-25 21:00:07 +00:00
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*/
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GstObject*
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gst_object_ref (GstObject *object)
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{
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g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
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GST_DEBUG (GST_CAT_REFCOUNTING, "ref '%s' %d->%d\n",GST_OBJECT_NAME(object),
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2001-06-25 01:20:11 +00:00
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G_OBJECT(object)->ref_count,G_OBJECT(object)->ref_count+1);
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2001-05-25 21:00:07 +00:00
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2001-06-25 01:20:11 +00:00
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g_object_ref (G_OBJECT (object));
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2001-05-25 21:00:07 +00:00
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return object;
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}
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#define gst_object_ref gst_object_ref
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/**
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* gst_object_unref:
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* @object: GstObject to unreference
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*
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* Decrements the refence count on the object. If reference count hits
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* zero, destroy the object.
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*/
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void
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gst_object_unref (GstObject *object)
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{
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g_return_if_fail (GST_IS_OBJECT (object));
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GST_DEBUG (GST_CAT_REFCOUNTING, "unref '%s' %d->%d\n",GST_OBJECT_NAME(object),
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2001-06-25 01:20:11 +00:00
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G_OBJECT(object)->ref_count,G_OBJECT(object)->ref_count-1);
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2001-05-25 21:00:07 +00:00
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2001-06-25 01:20:11 +00:00
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g_object_unref (G_OBJECT (object));
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2001-05-25 21:00:07 +00:00
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}
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#define gst_object_unref gst_object_unref
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/**
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* gst_object_sink:
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* @object: GstObject to sink
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*
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* Removes floating reference on an object. Any newly created object has
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* a refcount of 1 and is FLOATING. This function should be used when
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* creating a new object to symbolically 'take ownership of' the object.
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*/
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void
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gst_object_sink (GstObject *object)
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{
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_OBJECT (object));
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GST_DEBUG (GST_CAT_REFCOUNTING, "sink '%s'\n",GST_OBJECT_NAME(object));
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if (GST_OBJECT_FLOATING (object))
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{
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GST_FLAG_UNSET (object, GST_FLOATING);
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gst_object_unref (object);
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}
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}
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2001-10-21 18:00:31 +00:00
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/**
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* gst_object_destroy:
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* @object: GstObject to destroy
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*
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* Destroy the object.
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*/
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2001-05-25 21:00:07 +00:00
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void
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gst_object_destroy (GstObject *object)
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{
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_OBJECT (object));
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GST_DEBUG (GST_CAT_REFCOUNTING, "destroy '%s'\n",GST_OBJECT_NAME(object));
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if (!GST_OBJECT_DESTROYED (object))
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{
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/* need to hold a reference count around all class method
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* invocations.
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*/
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2001-12-15 22:37:35 +00:00
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g_object_run_dispose (G_OBJECT (object));
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2001-05-25 21:00:07 +00:00
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}
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}
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static void
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2001-09-28 19:16:02 +00:00
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gst_object_dispose (GObject *object)
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2001-05-25 21:00:07 +00:00
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{
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2001-09-28 19:16:02 +00:00
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GST_DEBUG (GST_CAT_REFCOUNTING, "dispose '%s'\n",GST_OBJECT_NAME(object));
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2001-05-25 21:00:07 +00:00
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GST_FLAG_SET (GST_OBJECT (object), GST_DESTROYED);
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2001-09-28 19:16:02 +00:00
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GST_OBJECT_PARENT (object) = NULL;
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2001-05-25 21:00:07 +00:00
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2001-09-28 19:16:02 +00:00
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parent_class->dispose (object);
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2001-05-25 21:00:07 +00:00
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}
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/* finilize is called when the object has to free its resources */
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static void
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2001-06-25 01:20:11 +00:00
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gst_object_finalize (GObject *object)
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2001-05-25 21:00:07 +00:00
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{
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2001-12-15 22:37:35 +00:00
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GstObject *gstobject = GST_OBJECT (object);
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2001-05-25 21:00:07 +00:00
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GST_DEBUG (GST_CAT_REFCOUNTING, "finalize '%s'\n",GST_OBJECT_NAME(object));
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2001-12-15 22:37:35 +00:00
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g_signal_handlers_destroy (object);
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2001-06-25 01:20:11 +00:00
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if (gstobject->name != NULL)
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g_free (gstobject->name);
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2001-05-25 21:00:07 +00:00
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2001-06-25 01:20:11 +00:00
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g_mutex_free (gstobject->lock);
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2001-05-25 21:00:07 +00:00
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2001-06-25 01:20:11 +00:00
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parent_class->finalize (object);
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2001-05-25 21:00:07 +00:00
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}
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2001-01-29 00:06:02 +00:00
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/**
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* gst_object_set_name:
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* @object: GstObject to set the name of
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* @name: new name of object
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*
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* Set the name of the object.
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*/
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void
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gst_object_set_name (GstObject *object, const gchar *name)
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{
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g_return_if_fail (object != NULL);
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g_return_if_fail (GST_IS_OBJECT (object));
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g_return_if_fail (name != NULL);
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if (object->name != NULL)
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g_free (object->name);
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object->name = g_strdup (name);
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}
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/**
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* gst_object_get_name:
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* @object: GstObject to get the name of
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*
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* Get the name of the object.
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*
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* Returns: name of the object
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*/
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const gchar*
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gst_object_get_name (GstObject *object)
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{
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g_return_val_if_fail (object != NULL, NULL);
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g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
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return object->name;
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2000-01-30 09:03:00 +00:00
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}
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/**
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* gst_object_set_parent:
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* @object: GstObject to set parent of
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* @parent: new parent of object
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*
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* Set the parent of the object. The object's reference count is
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* incremented.
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2000-03-27 19:53:43 +00:00
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* signals the parent-set signal
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2000-01-30 09:03:00 +00:00
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*/
|
2001-01-29 00:06:02 +00:00
|
|
|
void
|
|
|
|
gst_object_set_parent (GstObject *object, GstObject *parent)
|
|
|
|
{
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object));
|
|
|
|
g_return_if_fail (parent != NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (parent));
|
|
|
|
g_return_if_fail (object != parent);
|
2000-01-30 09:03:00 +00:00
|
|
|
|
2000-12-29 10:02:17 +00:00
|
|
|
if (object->parent != NULL) {
|
2001-01-29 00:06:02 +00:00
|
|
|
GST_ERROR_OBJECT (object,object->parent, "object's parent is already set, must unparent first");
|
2000-12-29 10:02:17 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2001-01-29 00:06:02 +00:00
|
|
|
gst_object_ref (object);
|
|
|
|
gst_object_sink (object);
|
2000-01-30 09:03:00 +00:00
|
|
|
object->parent = parent;
|
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
g_signal_emit (G_OBJECT (object), gst_object_signals[PARENT_SET], 0, parent);
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_object_get_parent:
|
|
|
|
* @object: GstObject to get parent of
|
|
|
|
*
|
|
|
|
* Return the parent of the object.
|
|
|
|
*
|
|
|
|
* Returns: parent of the object
|
|
|
|
*/
|
2001-01-29 00:06:02 +00:00
|
|
|
GstObject*
|
|
|
|
gst_object_get_parent (GstObject *object)
|
|
|
|
{
|
|
|
|
g_return_val_if_fail (object != NULL, NULL);
|
|
|
|
g_return_val_if_fail (GST_IS_OBJECT (object), NULL);
|
2000-01-30 09:03:00 +00:00
|
|
|
|
|
|
|
return object->parent;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* gst_object_unparent:
|
|
|
|
* @object: GstObject to unparent
|
|
|
|
*
|
|
|
|
* Clear the parent of the object, removing the associated reference.
|
|
|
|
*/
|
2001-01-29 00:06:02 +00:00
|
|
|
void
|
|
|
|
gst_object_unparent (GstObject *object)
|
|
|
|
{
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT(object));
|
2000-01-30 09:03:00 +00:00
|
|
|
if (object->parent == NULL)
|
|
|
|
return;
|
|
|
|
|
2001-09-28 19:16:02 +00:00
|
|
|
GST_DEBUG (GST_CAT_REFCOUNTING, "unparent '%s'\n",GST_OBJECT_NAME(object));
|
|
|
|
|
2000-01-30 09:03:00 +00:00
|
|
|
object->parent = NULL;
|
2001-01-29 00:06:02 +00:00
|
|
|
gst_object_unref (object);
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
|
|
|
|
2000-02-02 06:26:44 +00:00
|
|
|
/**
|
|
|
|
* gst_object_ref:
|
|
|
|
* @object: GstObject to reference
|
|
|
|
*
|
|
|
|
* Increments the refence count on the object.
|
2001-05-27 14:37:29 +00:00
|
|
|
*
|
|
|
|
* Returns: Apointer to the Object
|
2000-02-02 06:26:44 +00:00
|
|
|
*/
|
2000-01-30 09:03:00 +00:00
|
|
|
#ifndef gst_object_ref
|
2001-05-27 14:37:29 +00:00
|
|
|
GstObject*
|
2001-01-29 00:06:02 +00:00
|
|
|
gst_object_ref (GstObject *object)
|
|
|
|
{
|
2001-05-27 14:37:29 +00:00
|
|
|
g_return_if_fail (object != NULL, NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object), NULL);
|
2000-01-30 09:03:00 +00:00
|
|
|
|
2001-12-14 22:59:21 +00:00
|
|
|
/* #ifdef HAVE_ATOMIC_H */
|
|
|
|
/* g_return_if_fail (atomic_read (&(object->refcount)) > 0); */
|
|
|
|
/* atomic_inc (&(object->refcount)) */
|
|
|
|
/* #else */
|
2001-01-29 00:06:02 +00:00
|
|
|
g_return_if_fail (object->refcount > 0);
|
|
|
|
GST_LOCK (object);
|
2001-12-14 22:59:21 +00:00
|
|
|
/* object->refcount++; */
|
2001-06-25 01:20:11 +00:00
|
|
|
g_object_ref((GObject *)object);
|
2001-01-29 00:06:02 +00:00
|
|
|
GST_UNLOCK (object);
|
2001-12-14 22:59:21 +00:00
|
|
|
/* #endif */
|
2001-05-27 14:37:29 +00:00
|
|
|
|
|
|
|
return object;
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
|
|
|
#endif /* gst_object_ref */
|
|
|
|
|
2000-02-02 06:26:44 +00:00
|
|
|
/**
|
|
|
|
* gst_object_unref:
|
|
|
|
* @object: GstObject to unreference
|
|
|
|
*
|
|
|
|
* Decrements the refence count on the object. If reference count hits
|
|
|
|
* zero, destroy the object.
|
|
|
|
*/
|
2000-01-30 09:03:00 +00:00
|
|
|
#ifndef gst_object_unref
|
2001-01-29 00:06:02 +00:00
|
|
|
void
|
|
|
|
gst_object_unref (GstObject *object)
|
|
|
|
{
|
2000-01-30 09:03:00 +00:00
|
|
|
int reftest;
|
|
|
|
|
2001-01-29 00:06:02 +00:00
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object));
|
2000-01-30 09:03:00 +00:00
|
|
|
|
|
|
|
#ifdef HAVE_ATOMIC_H
|
2001-01-29 00:06:02 +00:00
|
|
|
g_return_if_fail (atomic_read (&(object->refcount)) > 0);
|
|
|
|
reftest = atomic_dec_and_test (&(object->refcount))
|
2000-01-30 09:03:00 +00:00
|
|
|
#else
|
2001-01-29 00:06:02 +00:00
|
|
|
g_return_if_fail (object->refcount > 0);
|
|
|
|
GST_LOCK (object);
|
2000-01-30 09:03:00 +00:00
|
|
|
object->refcount--;
|
|
|
|
reftest = (object->refcount == 0);
|
2001-01-29 00:06:02 +00:00
|
|
|
GST_UNLOCK (object);
|
2000-01-30 09:03:00 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/* if we ended up with the refcount at zero */
|
|
|
|
if (reftest) {
|
|
|
|
/* get the count to 1 for gtk_object_destroy() */
|
2000-02-01 04:10:58 +00:00
|
|
|
#ifdef HAVE_ATOMIC_H
|
2001-01-29 00:06:02 +00:00
|
|
|
atomic_set (&(object->refcount),1);
|
2000-01-30 09:03:00 +00:00
|
|
|
#else
|
|
|
|
object->refcount = 1;
|
|
|
|
#endif
|
|
|
|
/* destroy it */
|
2001-06-25 01:20:11 +00:00
|
|
|
gtk_object_destroy (G_OBJECT (object));
|
2000-01-30 09:03:00 +00:00
|
|
|
/* drop the refcount back to zero */
|
2000-02-01 04:10:58 +00:00
|
|
|
#ifdef HAVE_ATOMIC_H
|
2001-01-29 00:06:02 +00:00
|
|
|
atomic_set (&(object->refcount),0);
|
2000-01-30 09:03:00 +00:00
|
|
|
#else
|
|
|
|
object->refcount = 0;
|
|
|
|
#endif
|
|
|
|
/* finalize the object */
|
2001-12-14 22:59:21 +00:00
|
|
|
/* FIXME this is an evil hack that should be killed */
|
|
|
|
/* FIXMEFIXMEFIXMEFIXME */
|
|
|
|
/* gtk_object_finalize(G_OBJECT(object)); */
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* gst_object_unref */
|
|
|
|
|
2000-02-02 06:26:44 +00:00
|
|
|
/**
|
2001-05-25 21:00:07 +00:00
|
|
|
* gst_object_check_uniqueness:
|
|
|
|
* @list: a list of #GstObject to check through
|
|
|
|
* @name: the name to search for
|
2000-02-02 06:26:44 +00:00
|
|
|
*
|
2001-05-25 21:00:07 +00:00
|
|
|
* This function checks through the list of objects to see if the name
|
|
|
|
* given appears in the list as the name of an object. It returns TRUE if
|
|
|
|
* the name does not exist in the list.
|
|
|
|
*
|
|
|
|
* Returns: TRUE if the name doesn't appear in the list, FALSE if it does.
|
2000-02-02 06:26:44 +00:00
|
|
|
*/
|
2001-05-25 21:00:07 +00:00
|
|
|
gboolean
|
|
|
|
gst_object_check_uniqueness (GList *list, const gchar *name)
|
2001-01-29 00:06:02 +00:00
|
|
|
{
|
2001-08-21 20:16:48 +00:00
|
|
|
g_return_val_if_fail (name != NULL, FALSE);
|
2000-01-30 09:03:00 +00:00
|
|
|
|
2001-05-25 21:00:07 +00:00
|
|
|
while (list) {
|
2001-08-21 20:16:48 +00:00
|
|
|
GstObject *child = GST_OBJECT (list->data);
|
|
|
|
|
2001-05-25 21:00:07 +00:00
|
|
|
list = g_list_next(list);
|
|
|
|
|
2001-08-21 20:16:48 +00:00
|
|
|
if (strcmp(GST_OBJECT_NAME(child), name) == 0)
|
|
|
|
return FALSE;
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
2001-05-25 21:00:07 +00:00
|
|
|
|
|
|
|
return TRUE;
|
2000-01-30 09:03:00 +00:00
|
|
|
}
|
2001-05-25 21:00:07 +00:00
|
|
|
|
2000-01-30 09:03:00 +00:00
|
|
|
|
2001-10-17 10:21:27 +00:00
|
|
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
2001-04-17 21:14:55 +00:00
|
|
|
/**
|
|
|
|
* gst_object_save_thyself:
|
|
|
|
* @object: GstObject to save
|
|
|
|
* @parent: The parent XML node to save the object into
|
|
|
|
*
|
|
|
|
* Saves the given object into the parent XML node.
|
|
|
|
*
|
|
|
|
* Returns: the new xmlNodePtr with the saved object
|
|
|
|
*/
|
2001-01-29 00:06:02 +00:00
|
|
|
xmlNodePtr
|
|
|
|
gst_object_save_thyself (GstObject *object, xmlNodePtr parent)
|
|
|
|
{
|
|
|
|
GstObjectClass *oclass;
|
|
|
|
|
|
|
|
g_return_val_if_fail (object != NULL, parent);
|
|
|
|
g_return_val_if_fail (GST_IS_OBJECT (object), parent);
|
|
|
|
g_return_val_if_fail (parent != NULL, parent);
|
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
oclass = (GstObjectClass *)G_OBJECT_GET_CLASS(object);
|
2001-01-29 00:06:02 +00:00
|
|
|
if (oclass->save_thyself)
|
|
|
|
oclass->save_thyself (object, parent);
|
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
g_signal_emit (G_OBJECT (object), gst_object_signals[OBJECT_SAVED], 0, parent);
|
2001-01-29 00:06:02 +00:00
|
|
|
|
2001-01-30 23:53:04 +00:00
|
|
|
return parent;
|
2001-01-29 00:06:02 +00:00
|
|
|
}
|
2000-12-29 10:02:17 +00:00
|
|
|
|
2001-08-21 20:16:48 +00:00
|
|
|
/**
|
2001-10-21 18:00:31 +00:00
|
|
|
* gst_object_restore_thyself:
|
2001-08-21 20:16:48 +00:00
|
|
|
* @object: GstObject to load into
|
2001-10-21 18:00:31 +00:00
|
|
|
* @parent: The parent XML node to load the object from
|
2001-08-21 20:16:48 +00:00
|
|
|
*
|
2001-10-21 18:00:31 +00:00
|
|
|
* Restores the given object with the data from the parent XML node.
|
2001-08-21 20:16:48 +00:00
|
|
|
*/
|
|
|
|
void
|
|
|
|
gst_object_restore_thyself (GstObject *object, xmlNodePtr parent)
|
|
|
|
{
|
|
|
|
GstObjectClass *oclass;
|
|
|
|
|
|
|
|
g_return_if_fail (object != NULL);
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object));
|
|
|
|
g_return_if_fail (parent != NULL);
|
|
|
|
|
|
|
|
oclass = (GstObjectClass *)G_OBJECT_GET_CLASS(object);
|
|
|
|
if (oclass->restore_thyself)
|
|
|
|
oclass->restore_thyself (object, parent);
|
|
|
|
}
|
2001-10-17 10:21:27 +00:00
|
|
|
#endif /* GST_DISABLE_LOADSAVE_REGISTRY */
|
2001-06-24 21:18:28 +00:00
|
|
|
|
2001-10-24 19:11:11 +00:00
|
|
|
static void
|
|
|
|
gst_object_set_property (GObject* object, guint prop_id,
|
|
|
|
const GValue* value, GParamSpec* pspec)
|
|
|
|
{
|
|
|
|
GstObject *gstobject;
|
|
|
|
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object));
|
|
|
|
|
|
|
|
gstobject = GST_OBJECT (object);
|
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_NAME:
|
|
|
|
gst_object_set_name (gstobject, g_value_get_string (value));
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_object_get_property (GObject* object, guint prop_id,
|
|
|
|
GValue* value, GParamSpec* pspec)
|
|
|
|
{
|
|
|
|
GstObject *gstobject;
|
|
|
|
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
|
|
g_return_if_fail (GST_IS_OBJECT (object));
|
|
|
|
|
|
|
|
gstobject = GST_OBJECT (object);
|
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_NAME:
|
|
|
|
g_value_set_string (value, (gchar*)GST_OBJECT_NAME (gstobject));
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2000-12-30 16:13:17 +00:00
|
|
|
/**
|
|
|
|
* gst_object_get_path_string:
|
|
|
|
* @object: GstObject to get the path from
|
|
|
|
*
|
|
|
|
* Generates a string describing the path of the object in
|
|
|
|
* the object hierarchy. Usefull for debugging
|
2001-01-29 00:06:02 +00:00
|
|
|
*
|
2000-12-30 16:13:17 +00:00
|
|
|
* Returns: a string describing the path of the object
|
|
|
|
*/
|
|
|
|
gchar*
|
2001-01-29 00:06:02 +00:00
|
|
|
gst_object_get_path_string (GstObject *object)
|
2000-12-30 16:13:17 +00:00
|
|
|
{
|
2000-12-29 10:02:17 +00:00
|
|
|
GSList *parentage = NULL;
|
|
|
|
GSList *parents;
|
|
|
|
void *parent;
|
2001-03-07 21:52:56 +00:00
|
|
|
gchar *prevpath, *path;
|
2000-12-29 10:02:17 +00:00
|
|
|
const char *component;
|
|
|
|
gchar *separator = "";
|
|
|
|
gboolean free_component;
|
|
|
|
|
|
|
|
parentage = g_slist_prepend (NULL, object);
|
2001-01-29 00:06:02 +00:00
|
|
|
|
2001-03-07 21:52:56 +00:00
|
|
|
path = g_strdup ("");
|
|
|
|
|
2001-12-14 22:59:21 +00:00
|
|
|
/* first walk the object hierarchy to build a list of the parents */
|
2000-12-29 10:02:17 +00:00
|
|
|
do {
|
2001-01-29 00:06:02 +00:00
|
|
|
if (GST_IS_OBJECT (object)) {
|
|
|
|
parent = gst_object_get_parent (object);
|
2000-12-29 10:02:17 +00:00
|
|
|
} else {
|
|
|
|
parentage = g_slist_prepend (parentage, NULL);
|
|
|
|
parent = NULL;
|
|
|
|
}
|
|
|
|
|
2001-01-29 00:06:02 +00:00
|
|
|
if (parent != NULL) {
|
2000-12-29 10:02:17 +00:00
|
|
|
parentage = g_slist_prepend (parentage, parent);
|
|
|
|
}
|
2001-01-29 00:06:02 +00:00
|
|
|
|
2000-12-29 10:02:17 +00:00
|
|
|
object = parent;
|
|
|
|
} while (object != NULL);
|
|
|
|
|
2001-12-14 22:59:21 +00:00
|
|
|
/* then walk the parent list and print them out */
|
2000-12-29 10:02:17 +00:00
|
|
|
parents = parentage;
|
|
|
|
while (parents) {
|
2001-01-29 00:06:02 +00:00
|
|
|
if (GST_IS_OBJECT (parents->data)) {
|
2001-06-25 01:20:11 +00:00
|
|
|
GstObjectClass *oclass = (GstObjectClass *)G_OBJECT_GET_CLASS(parents->data);
|
2001-01-29 00:06:02 +00:00
|
|
|
|
2001-03-07 21:52:56 +00:00
|
|
|
component = gst_object_get_name (parents->data);
|
2001-01-29 00:06:02 +00:00
|
|
|
separator = oclass->path_string_separator;
|
|
|
|
free_component = FALSE;
|
2000-12-29 10:02:17 +00:00
|
|
|
} else {
|
2001-01-29 00:06:02 +00:00
|
|
|
component = g_strdup_printf("%p",parents->data);
|
2000-12-29 10:02:17 +00:00
|
|
|
separator = "/";
|
|
|
|
free_component = TRUE;
|
|
|
|
}
|
2001-01-29 00:06:02 +00:00
|
|
|
|
2000-12-29 10:02:17 +00:00
|
|
|
prevpath = path;
|
2001-01-29 00:06:02 +00:00
|
|
|
path = g_strjoin (separator, prevpath, component, NULL);
|
2000-12-29 10:02:17 +00:00
|
|
|
g_free(prevpath);
|
|
|
|
if (free_component)
|
|
|
|
g_free((gchar *)component);
|
|
|
|
|
|
|
|
parents = g_slist_next(parents);
|
|
|
|
}
|
2001-01-29 00:06:02 +00:00
|
|
|
|
|
|
|
g_slist_free (parentage);
|
|
|
|
|
2000-12-29 10:02:17 +00:00
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
2001-01-30 23:53:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
struct _GstSignalObject {
|
2001-06-25 01:20:11 +00:00
|
|
|
GObject object;
|
2001-01-30 23:53:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct _GstSignalObjectClass {
|
2001-06-25 01:20:11 +00:00
|
|
|
GObjectClass parent_class;
|
2001-01-30 23:53:04 +00:00
|
|
|
|
|
|
|
/* signals */
|
2001-10-17 10:21:27 +00:00
|
|
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
2001-01-30 23:53:04 +00:00
|
|
|
void (*object_loaded) (GstSignalObject *object, GstObject *new, xmlNodePtr self);
|
2001-10-17 10:21:27 +00:00
|
|
|
#endif /* GST_DISABLE_LOADSAVE_REGISTRY */
|
2001-01-30 23:53:04 +00:00
|
|
|
};
|
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
static GType
|
2001-01-30 23:53:04 +00:00
|
|
|
gst_signal_object_get_type (void)
|
|
|
|
{
|
2001-06-25 01:20:11 +00:00
|
|
|
static GType signal_object_type = 0;
|
2001-01-30 23:53:04 +00:00
|
|
|
|
|
|
|
if (!signal_object_type) {
|
2001-06-25 01:20:11 +00:00
|
|
|
static const GTypeInfo signal_object_info = {
|
2001-01-30 23:53:04 +00:00
|
|
|
sizeof(GstSignalObjectClass),
|
2001-06-25 01:20:11 +00:00
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
(GClassInitFunc)gst_signal_object_class_init,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
sizeof(GstSignalObject),
|
|
|
|
16,
|
|
|
|
(GInstanceInitFunc)gst_signal_object_init,
|
2001-09-14 22:16:47 +00:00
|
|
|
NULL
|
2001-01-30 23:53:04 +00:00
|
|
|
};
|
2001-06-25 01:20:11 +00:00
|
|
|
signal_object_type = g_type_register_static(G_TYPE_OBJECT, "GstSignalObject", &signal_object_info, 0);
|
2001-01-30 23:53:04 +00:00
|
|
|
}
|
|
|
|
return signal_object_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_signal_object_class_init (GstSignalObjectClass *klass)
|
|
|
|
{
|
2001-06-25 01:20:11 +00:00
|
|
|
GObjectClass *gobject_class;
|
2001-01-30 23:53:04 +00:00
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
gobject_class = (GObjectClass*) klass;
|
2001-01-30 23:53:04 +00:00
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
parent_class = g_type_class_ref (G_TYPE_OBJECT);
|
2001-01-30 23:53:04 +00:00
|
|
|
|
2001-10-17 10:21:27 +00:00
|
|
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
2001-01-30 23:53:04 +00:00
|
|
|
gst_signal_object_signals[SO_OBJECT_LOADED] =
|
2001-08-13 19:00:13 +00:00
|
|
|
g_signal_new("object_loaded", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
|
2001-06-25 01:20:11 +00:00
|
|
|
G_STRUCT_OFFSET (GstObjectClass, parent_set), NULL, NULL,
|
|
|
|
gst_marshal_VOID__OBJECT_POINTER,G_TYPE_NONE,2,
|
|
|
|
G_TYPE_OBJECT,G_TYPE_POINTER);
|
2001-06-24 21:18:28 +00:00
|
|
|
#endif
|
2001-01-30 23:53:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_signal_object_init (GstSignalObject *object)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2001-01-31 20:27:00 +00:00
|
|
|
/**
|
|
|
|
* gst_class_signal_connect
|
|
|
|
* @klass: the GstObjectClass to attach the signal to
|
|
|
|
* @name: the name of the signal to attach to
|
|
|
|
* @func: the signal function
|
|
|
|
* @func_data: a pointer to user data
|
|
|
|
*
|
|
|
|
* Connect to a class signal.
|
|
|
|
*
|
|
|
|
* Returns: the signal id.
|
|
|
|
*/
|
2001-01-30 23:53:04 +00:00
|
|
|
guint
|
|
|
|
gst_class_signal_connect (GstObjectClass *klass,
|
|
|
|
const gchar *name,
|
2001-06-25 01:20:11 +00:00
|
|
|
gpointer func,
|
2001-01-30 23:53:04 +00:00
|
|
|
gpointer func_data)
|
|
|
|
{
|
2001-08-13 19:00:13 +00:00
|
|
|
return g_signal_connect (klass->signal_object, name, func, func_data);
|
2001-01-30 23:53:04 +00:00
|
|
|
}
|
|
|
|
|
2001-10-17 10:21:27 +00:00
|
|
|
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
2001-01-31 20:27:00 +00:00
|
|
|
/**
|
|
|
|
* gst_class_signal_emit_by_name:
|
|
|
|
* @object: the object that sends the signal
|
|
|
|
* @name: the name of the signal to emit
|
|
|
|
* @self: data for the signal
|
|
|
|
*
|
|
|
|
* emits the named class signal.
|
|
|
|
*/
|
2001-01-30 23:53:04 +00:00
|
|
|
void
|
|
|
|
gst_class_signal_emit_by_name (GstObject *object,
|
|
|
|
const gchar *name,
|
|
|
|
xmlNodePtr self)
|
|
|
|
{
|
|
|
|
GstObjectClass *oclass;
|
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
oclass = (GstObjectClass *)G_OBJECT_GET_CLASS(object);
|
2001-01-30 23:53:04 +00:00
|
|
|
|
2001-06-25 01:20:11 +00:00
|
|
|
g_signal_emit_by_name (oclass->signal_object, name, object, self);
|
2001-01-30 23:53:04 +00:00
|
|
|
}
|
2001-06-24 21:18:28 +00:00
|
|
|
|
2001-10-17 10:21:27 +00:00
|
|
|
#endif /* GST_DISABLE_LOADSAVE_REGISTRY */
|