/*
 * pthread.h - pthread primitives
 *
 *   Copyright (c) 2000-2007  Shiro Kawai  <shiro@acm.org>
 * 
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 * 
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 *   3. Neither the name of the authors nor the names of its contributors
 *      may be used to endorse or promote products derived from this
 *      software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 *   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  $Id: pthread.h,v 1.12 2007/03/22 11:20:36 shirok Exp $
 */

#ifndef GAUCHE_PTHREAD_H
#define GAUCHE_PTHREAD_H

#include <pthread.h>

/* Mutex */
typedef pthread_mutex_t ScmInternalMutex;
#define SCM_INTERNAL_MUTEX_INIT(mutex) \
    pthread_mutex_init(&(mutex), NULL)
#define SCM_INTERNAL_MUTEX_LOCK(mutex) \
    pthread_mutex_lock(&(mutex))
#define SCM_INTERNAL_MUTEX_UNLOCK(mutex) \
    pthread_mutex_unlock(&(mutex))
#define SCM_INTERNAL_MUTEX_INITIALIZER \
    PTHREAD_MUTEX_INITIALIZER

/* Condition variable */
typedef pthread_cond_t ScmInternalCond;
#define SCM_INTERNAL_COND_INIT(cond) \
    pthread_cond_init(&(cond), NULL)
#define SCM_INTERNAL_COND_SIGNAL(cond) \
    pthread_cond_signal(&(cond))
#define SCM_INTERNAL_COND_BROADCAST(cond) \
    pthread_cond_broadcast(&(cond))
#define SCM_INTERNAL_COND_WAIT(cond, mutex) \
    pthread_cond_wait(&(cond), &(mutex))
#define SCM_INTERNAL_COND_DESTROY(cond) \
    pthread_cond_destroy(&(cond))
#define SCM_INTERNAL_COND_INITIALIZER \
    PTHREAD_COND_INITIALIZER

/* Fast lock */
#ifdef HAVE_PTHREAD_SPINLOCK_T
typedef pthread_spinlock_t ScmInternalFastlock;
#define SCM_INTERNAL_FASTLOCK_INIT(spin) \
    pthread_spin_init(&(spin), PTHREAD_PROCESS_PRIVATE)
#define SCM_INTERNAL_FASTLOCK_LOCK(spin) \
    pthread_spin_lock(&(spin))
#define SCM_INTERNAL_FASTLOCK_UNLOCK(spin) \
    pthread_spin_unlock(&(spin))
#define SCM_INTERNAL_FASTLOCK_DESTROY(spin) \
    pthread_spin_destroy(&(spin))
#else  /*!HAVE_PTHREAD_SPINLOCK_T*/
typedef pthread_mutex_t ScmInternalFastlock;
#define SCM_INTERNAL_FASTLOCK_INIT(fl)   SCM_INTERNAL_MUTEX_INIT(fl)
#define SCM_INTERNAL_FASTLOCK_LOCK(fl)   SCM_INTERNAL_MUTEX_LOCK(fl)
#define SCM_INTERNAL_FASTLOCK_UNLOCK(fl) SCM_INTERNAL_MUTEX_UNLOCK(fl)
#define SCM_INTERNAL_FASTLOCK_DESTROY(fl) SCM_INTERNAL_MUTEX_DESTROY(fl)
#endif /*!HAVE_PTHREAD_SPINLOCK_T*/

#endif /* GAUCHE_PTHREAD_H */
