mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
ea2dd0057c
Original commit message from CVS: * gst/gstbus.c: (gst_bus_init), (gst_bus_dispose), (gst_bus_post), (gst_bus_pop), (gst_bus_source_prepare), (gst_bus_source_check), (gst_bus_source_dispatch), (gst_bus_source_finalize), (gst_bus_create_watch), (gst_bus_add_watch_full): * gst/gstbus.h: Implement a real GSource and use g_main_context_wakeup() to signal new messages instead of the socketpair.
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* GStreamer
|
|
* Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
|
|
*
|
|
* gstbus.h: Header for GstBus subsystem
|
|
*
|
|
* 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_BUS_H__
|
|
#define __GST_BUS_H__
|
|
|
|
#include <gst/gsttypes.h>
|
|
#include <gst/gstmessage.h>
|
|
#include <gst/gstclock.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* --- standard type macros --- */
|
|
#define GST_TYPE_BUS (gst_bus_get_type ())
|
|
#define GST_BUS(bus) (G_TYPE_CHECK_INSTANCE_CAST ((bus), GST_TYPE_BUS, GstBus))
|
|
#define GST_IS_BUS(bus) (G_TYPE_CHECK_INSTANCE_TYPE ((bus), GST_TYPE_BUS))
|
|
#define GST_BUS_CLASS(bclass) (G_TYPE_CHECK_CLASS_CAST ((bclass), GST_TYPE_BUS, GstBusClass))
|
|
#define GST_IS_BUS_CLASS(bclass) (G_TYPE_CHECK_CLASS_TYPE ((bclass), GST_TYPE_BUS))
|
|
#define GST_BUS_GET_CLASS(bus) (G_TYPE_INSTANCE_GET_CLASS ((bus), GST_TYPE_BUS, GstBusClass))
|
|
#define GST_BUS_CAST(bus) ((GstBus*)(bus))
|
|
|
|
typedef enum {
|
|
GST_BUS_FLUSHING = GST_OBJECT_FLAG_LAST,
|
|
|
|
GST_BUS_FLAG_LAST = GST_OBJECT_FLAG_LAST + 1
|
|
} GstBusFlags;
|
|
|
|
typedef enum
|
|
{
|
|
GST_BUS_DROP = 0, /* drop message */
|
|
GST_BUS_PASS = 1, /* pass message to async queue */
|
|
GST_BUS_ASYNC = 2, /* pass message to async queue, continue if message is handled */
|
|
} GstBusSyncReply;
|
|
|
|
typedef GstBusSyncReply (*GstBusSyncHandler) (GstBus * bus, GstMessage * message, gpointer data);
|
|
typedef gboolean (*GstBusHandler) (GstBus * bus, GstMessage * message, gpointer data);
|
|
|
|
struct _GstBus
|
|
{
|
|
GstObject object;
|
|
|
|
/*< private > */
|
|
GQueue *queue;
|
|
GMutex *queue_lock;
|
|
|
|
GstBusSyncHandler sync_handler;
|
|
gpointer sync_handler_data;
|
|
|
|
/*< private > */
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstBusClass
|
|
{
|
|
GstObjectClass parent_class;
|
|
|
|
/*< private > */
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
GType gst_bus_get_type (void);
|
|
|
|
GstBus* gst_bus_new (void);
|
|
|
|
gboolean gst_bus_post (GstBus * bus, GstMessage * message);
|
|
|
|
gboolean gst_bus_have_pending (GstBus * bus);
|
|
GstMessage * gst_bus_peek (GstBus * bus);
|
|
GstMessage * gst_bus_pop (GstBus * bus);
|
|
void gst_bus_set_flushing (GstBus * bus, gboolean flushing);
|
|
|
|
void gst_bus_set_sync_handler (GstBus * bus, GstBusSyncHandler func,
|
|
gpointer data);
|
|
|
|
GSource * gst_bus_create_watch (GstBus * bus);
|
|
guint gst_bus_add_watch_full (GstBus * bus,
|
|
gint priority,
|
|
GstBusHandler handler,
|
|
gpointer user_data,
|
|
GDestroyNotify notify);
|
|
guint gst_bus_add_watch (GstBus * bus,
|
|
GstBusHandler handler,
|
|
gpointer user_data);
|
|
GstMessageType gst_bus_poll (GstBus *bus, GstMessageType events,
|
|
GstClockTimeDiff timeout);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_BUS_H__ */
|