gstreamer/gst/gstthread.h
Wim Taymans ae87d97cb2 - Removed unused locking from the cothreads
Original commit message from CVS:
- Removed unused locking from the cothreads
- use G_*_DECLS in .h files
- remove gstlog.h include from gstobject.h, add to .c files
- removed unused refcounting code from gstobject
- small fixes in #includes
- Added Scheduling policy and priority properties to gstthread so that
SCHED_FIFO and SCHED_RR threads can be constructed.
2002-07-08 19:07:30 +00:00

93 lines
2.6 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstthread.h: Header for GstThread object
*
* 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_THREAD_H__
#define __GST_THREAD_H__
#include <unistd.h>
#include <pthread.h>
#include <gst/gstbin.h>
G_BEGIN_DECLS
extern GstElementDetails gst_thread_details;
typedef enum {
GST_THREAD_STATE_STARTED = GST_BIN_FLAG_LAST,
GST_THREAD_STATE_SPINNING,
GST_THREAD_STATE_REAPING,
/* padding */
GST_THREAD_FLAG_LAST = GST_BIN_FLAG_LAST + 4,
} GstThreadState;
#define GST_TYPE_THREAD \
(gst_thread_get_type())
#define GST_THREAD(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_THREAD,GstThread))
#define GST_THREAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_THREAD,GstThreadClass))
#define GST_IS_THREAD(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_THREAD))
#define GST_IS_THREAD_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_THREAD))
typedef struct _GstThread GstThread;
typedef struct _GstThreadClass GstThreadClass;
struct _GstThread {
GstBin bin;
pthread_t thread_id; /* id of the thread, if any */
pthread_attr_t attr; /* attributes for the stack space */
int sched_policy;
int priority;
void *stack; /* set with gst_scheduler_get_preferred_stack */
gint pid; /* the pid of the thread */
gint ppid; /* the pid of the thread's parent process */
GMutex *lock; /* thread lock/condititon pair ... */
GCond *cond; /* .... used to control the thread */
gint transition; /* the current state transition */
};
struct _GstThreadClass {
GstBinClass parent_class;
/* signals */
void (*shutdown) (GstThread *thread);
};
GType gst_thread_get_type (void);
GstElement* gst_thread_new (const gchar *name);
G_END_DECLS
#endif /* __GST_THREAD_H__ */