/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE Ogg Reference Library SOURCE CODE.      *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE Ogg Reference Library SOURCE CODE IS (C) COPYRIGHT 1994-2004 *
 * by the Xiph.Org Foundation http://www.xiph.org/                  *
 *                                                                  *
 ********************************************************************

 function: #ifdef jail for basic thread mutexing
 last mod: $Id$

 ********************************************************************/

/* the thread mutexing here is for internal Ogg use only; the
   zero-copy code in libogg2 centralizes buffer management in one
   place where libogg1 spreads it across abstraction layers. 

   Mutexing code isn't requird for a platform, it's only required to
   use threads with libogg and oggfile. */

#ifndef _OGG2_MUTEX_H_
#define _OGG2_MUTEX_H_

#ifdef USE_POSIX_THREADS
#define _REENTRANT 1
#include <pthread.h>
typedef pthread_mutex_t ogg2_mutex_t;
#define ogg2_mutex_init(m) (pthread_mutex_init((m),NULL))
#define ogg2_mutex_clear(m) (pthread_mutex_destroy(m))
#define ogg2_mutex_lock(m) (pthread_mutex_lock(m))
#define ogg2_mutex_unlock(m) (pthread_mutex_unlock(m))

#elif USE_NO_THREADS
typedef int ogg2_mutex_t;
#define noop() do {} while(0)
#define ogg2_mutex_init(m) noop()
#define ogg2_mutex_clear(m) noop()
#define ogg2_mutex_lock(m) noop()
#define ogg2_mutex_unlock(m) noop()

#else
#error "configure proper threading wrappers for this platform, or compile with -DUSE_NO_THREADS to build without threading support."

#endif

#endif /*_OGG2_MUTEX_H_*/