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/* $OpenBSD: pthread_mutex.c,v 1.7 2011/09/23 10:39:08 uwe Exp $ */
/*
* Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
* proven@mit.edu All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano,
* the University of California, Berkeley, and contributors.
* 4. Neither the name of Chris Provenzano, the University, nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO 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 CHRIS PROVENZANO, THE REGENTS 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.
*/
/* ==== test_pthread_cond.c =========================================
* Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
*
* Description : Test pthread_mutex(). Run this after test_create()
*
* 1.23 94/05/04 proven
* -Started coding this file.
*/
#include <pthread.h>
#include <pthread_np.h>
#include <stdio.h>
#include <stdlib.h>
#include "test.h"
int contention_variable;
static void *
thread_contention(void *arg)
{
pthread_mutex_t *mutex = arg;
SET_NAME("cntntn");
CHECKr(pthread_mutex_lock(mutex));
ASSERT(contention_variable == 1);
contention_variable = 2;
CHECKr(pthread_mutex_unlock(mutex));
pthread_exit(NULL);
}
static void
test_contention_lock(pthread_mutex_t *mutex)
{
pthread_t thread;
printf(" test_contention_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
contention_variable = 0;
CHECKr(pthread_create(&thread, NULL, thread_contention, mutex));
pthread_yield();
contention_variable = 1;
CHECKr(pthread_mutex_unlock(mutex));
pthread_yield();
CHECKr(pthread_mutex_lock(mutex));
ASSERT(contention_variable == 2);
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_nocontention_lock(pthread_mutex_t *mutex)
{
printf(" test_nocontention_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_debug_double_lock(pthread_mutex_t *mutex)
{
printf(" test_debug_double_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
ASSERTe(pthread_mutex_lock(mutex), == EDEADLK);
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_debug_double_unlock(pthread_mutex_t *mutex)
{
printf(" test_debug_double_unlock()\n");
CHECKr(pthread_mutex_lock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
/* Posix D10 says undefined behaviour? */
ASSERTe(pthread_mutex_unlock(mutex), != 0);
}
static void
test_nocontention_trylock(pthread_mutex_t *mutex)
{
printf(" test_nocontention_trylock()\n");
CHECKr(pthread_mutex_trylock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_mutex_static(void)
{
pthread_mutex_t mutex_static = PTHREAD_MUTEX_INITIALIZER;
printf("test_mutex_static()\n");
test_nocontention_lock(&mutex_static);
test_nocontention_trylock(&mutex_static);
test_contention_lock(&mutex_static);
}
static void
test_mutex_fast(void)
{
pthread_mutex_t mutex_fast;
printf("test_mutex_fast()\n");
CHECKr(pthread_mutex_init(&mutex_fast, NULL));
test_nocontention_lock(&mutex_fast);
test_nocontention_trylock(&mutex_fast);
test_contention_lock(&mutex_fast);
CHECKr(pthread_mutex_destroy(&mutex_fast));
}
static void
test_mutex_debug(void)
{
pthread_mutexattr_t mutex_debug_attr;
pthread_mutex_t mutex_debug;
printf("test_mutex_debug()\n");
CHECKr(pthread_mutexattr_init(&mutex_debug_attr));
CHECKr(pthread_mutexattr_settype(&mutex_debug_attr,
PTHREAD_MUTEX_ERRORCHECK));
CHECKr(pthread_mutex_init(&mutex_debug, &mutex_debug_attr));
test_nocontention_lock(&mutex_debug);
test_nocontention_trylock(&mutex_debug);
test_contention_lock(&mutex_debug);
test_debug_double_lock(&mutex_debug);
test_debug_double_unlock(&mutex_debug);
CHECKr(pthread_mutex_destroy(&mutex_debug));
}
static void
test_mutex_recursive_lock(pthread_mutex_t *mutex)
{
int i;
int j = 9;
printf(" %s()\n", __func__);
CHECKr(pthread_mutex_lock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_lock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_unlock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_mutex_recursive_trylock(pthread_mutex_t *mutex)
{
int i;
int j = 9;
printf(" %s()\n", __func__);
CHECKr(pthread_mutex_trylock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_trylock(mutex));
for (i = 0; i < j; i++)
CHECKr(pthread_mutex_unlock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
static void
test_mutex_recursive(void)
{
pthread_mutexattr_t mutex_recursive_attr;
pthread_mutex_t mutex_recursive;
printf("test_mutex_recursive()\n");
CHECKr(pthread_mutexattr_init(&mutex_recursive_attr));
CHECKr(pthread_mutexattr_settype(&mutex_recursive_attr,
PTHREAD_MUTEX_RECURSIVE));
CHECKr(pthread_mutex_init(&mutex_recursive, &mutex_recursive_attr));
test_mutex_recursive_lock(&mutex_recursive);
test_mutex_recursive_trylock(&mutex_recursive);
/* Posix D10 says undefined behaviour? */
ASSERTe(pthread_mutex_unlock(&mutex_recursive), != 0);
CHECKr(pthread_mutex_destroy(&mutex_recursive));
}
int
main(int argc, char *argv[])
{
test_mutex_static();
test_mutex_fast();
test_mutex_debug();
test_mutex_recursive();
SUCCEED;
}
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