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e3ff1a49e4
Basically, all modern, supported versions of FreeBSD are thread-safe, so just assume we have pthread.h. Reported by: bento via kris
120 lines
3.0 KiB
C
120 lines
3.0 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002
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* Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#include <stdlib.h>
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# include <pthread.h>
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/*
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* Use a mutex under BSD systems to avoid problems with semaphores
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* blocking all the threads since BSD have MIT pthreads user space
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* threads. If not BSD, use some stubs that do nothing. Since these
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* stubs are empty, most modern compilers will simply add a NOP at
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* the calling point.
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*/
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# if (defined(BSD) && (BSD >= 199103))
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int
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lp_mutex_init_ (pthread_mutex_t ** mutex,
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const pthread_mutexattr_t *attr)
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{
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pthread_mutex_t * mutex_temp;
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if ( (mutex_temp = \
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(pthread_mutex_t *) malloc (sizeof(pthread_mutex_t))) ) {
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if ( (pthread_mutex_init(mutex_temp, attr)) == 0) {
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(*mutex) = mutex_temp;
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return (1);
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} else {
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return (0);
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}
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} else {
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/* Not enough memory */
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return (-1);
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}
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}
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int
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lp_mutex_lock_ (pthread_mutex_t * mutex)
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{
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if ( (pthread_mutex_lock(mutex)) == 0) {
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return (1);
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} else {
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return (0);
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}
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}
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int
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lp_mutex_unlock_ (pthread_mutex_t * mutex)
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{
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if ( (pthread_mutex_unlock(mutex)) == 0) {
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return (1);
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} else {
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return (0);
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}
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}
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int
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lp_mutex_destroy_ (pthread_mutex_t ** mutex)
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{
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if ( (pthread_mutex_destroy(*mutex)) == 0) {
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free (*mutex);
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return (1);
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} else {
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return (0);
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}
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}
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# else /* !(defined(BSD) && (BSD >= 199103)) */
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int
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lp_mutex_init_ (pthread_mutex_t ** mutex,
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const pthread_mutexattr_t *attr) {}
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int
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lp_mutex_lock_ (pthread_mutex_t * mutex) {}
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int
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lp_mutex_unlock_ (pthread_mutex_t * mutex) {}
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int
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lp_mutex_destroy_ (pthread_mutex_t ** mutex) {}
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# endif /* (defined(BSD) && (BSD >= 199103)) */
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