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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstobject.h: Header for base GstObject
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OBJECT_H__
#define __GST_OBJECT_H__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef USE_GLIB2
#include <glib-object.h>
#include <gst/gstmarshal.h>
#else
#include <gst/gobject2gtk.h>
#endif
#include <gst/gsttrace.h>
#include <parser.h>
#include <gst/gsttypes.h>
#ifdef HAVE_ATOMIC_H
#include <asm/atomic.h>
#endif
// FIXME
#include "gstlog.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_OBJECT \
(gst_object_get_type())
#define GST_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OBJECT,GstObject))
#define GST_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OBJECT,GstObjectClass))
#define GST_IS_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OBJECT))
#define GST_IS_OBJECT_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OBJECT))
//typedef struct _GstObject GstObject;
//typedef struct _GstObjectClass GstObjectClass;
//
typedef enum
{
GST_DESTROYED = 0,
GST_FLOATING,
GST_OBJECT_FLAG_LAST = 4,
} GstObjectFlags;
struct _GstObject {
GObject object;
gchar *name;
/* have to have a refcount for the object */
#ifdef HAVE_ATOMIC_H
atomic_t refcount;
#else
int refcount;
#endif
/* locking for all sorts of things (like the refcount) */
GMutex *lock;
/* this objects parent */
GstObject *parent;
guint32 flags;
};
struct _GstObjectClass {
GObjectClass parent_class;
gchar *path_string_separator;
GObject *signal_object;
/* signals */
void (*parent_set) (GstObject *object, GstObject *parent);
void (*object_saved) (GstObject *object, xmlNodePtr parent);
/* functions go here */
void (*destroy) (GstObject *object);
xmlNodePtr (*save_thyself) (GstObject *object, xmlNodePtr parent);
void (*restore_thyself) (GstObject *object, xmlNodePtr self);
};
#define GST_FLAGS(obj) (GST_OBJECT (obj)->flags)
#define GST_FLAG_IS_SET(obj,flag) (GST_FLAGS (obj) & (1<<(flag)))
#define GST_FLAG_SET(obj,flag) G_STMT_START{ (GST_FLAGS (obj) |= (1<<(flag))); }G_STMT_END
#define GST_FLAG_UNSET(obj,flag) G_STMT_START{ (GST_FLAGS (obj) &= ~(1<<(flag))); }G_STMT_END
#define GST_OBJECT_NAME(obj) (const gchar*)(((GstObject *)(obj))->name)
#define GST_OBJECT_PARENT(obj) (((GstObject *)(obj))->parent)
#define GST_OBJECT_DESTROYED(obj) (GST_FLAG_IS_SET (obj, GST_DESTROYED))
#define GST_OBJECT_FLOATING(obj) (GST_FLAG_IS_SET (obj, GST_FLOATING))
/* object locking */
#define GST_LOCK(obj) (g_mutex_lock(GST_OBJECT(obj)->lock))
#define GST_TRYLOCK(obj) (g_mutex_trylock(GST_OBJECT(obj)->lock))
#define GST_UNLOCK(obj) (g_mutex_unlock(GST_OBJECT(obj)->lock))
#define GST_GET_LOCK(obj) (GST_OBJECT(obj)->lock)
/* normal GObject stuff */
GType gst_object_get_type (void);
GstObject* gst_object_new (void);
/* name routines */
void gst_object_set_name (GstObject *object, const gchar *name);
const gchar* gst_object_get_name (GstObject *object);
/* parentage routines */
void gst_object_set_parent (GstObject *object,GstObject *parent);
GstObject* gst_object_get_parent (GstObject *object);
void gst_object_unparent (GstObject *object);
gboolean gst_object_check_uniqueness (GList *list, const gchar *name);
xmlNodePtr gst_object_save_thyself (GstObject *object, xmlNodePtr parent);
/* refcounting */
GstObject * gst_object_ref (GstObject *object);
void gst_object_unref (GstObject *object);
void gst_object_sink (GstObject *object);
/* destroying an object */
void gst_object_destroy (GstObject *object);
/* printing out the 'path' of the object */
gchar * gst_object_get_path_string (GstObject *object);
guint gst_class_signal_connect (GstObjectClass *klass,
const gchar *name,
gpointer func,
gpointer func_data);
void gst_class_signal_emit_by_name (GstObject *object,
const gchar *name,
xmlNodePtr self);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_OBJECT_H__ */
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