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/* ==== test_pthread_cond.c =========================================
* Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
*
* Description : Test pthread_cond(). 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 "test.h"
int contention_variable;
void *
thread_contention(arg)
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);
}
void
test_contention_lock(mutex)
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));
CHECKr(pthread_mutex_lock(mutex));
ASSERT(contention_variable == 2);
CHECKr(pthread_mutex_unlock(mutex));
}
void
test_nocontention_lock(mutex)
pthread_mutex_t *mutex;
{
printf(" test_nocontention_lock()\n");
CHECKr(pthread_mutex_lock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
void
test_debug_double_lock(mutex)
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));
}
void
test_debug_double_unlock(mutex)
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), == EPERM);
}
void
test_nocontention_trylock(mutex)
pthread_mutex_t *mutex;
{
printf(" test_nocontention_trylock()\n");
CHECKr(pthread_mutex_trylock(mutex));
CHECKr(pthread_mutex_unlock(mutex));
}
void
test_mutex_static()
{
pthread_mutex_t mutex_static = PTHREAD_MUTEX_INITIALIZER;
printf("test_mutex_static()\n");
test_nocontention_lock(&mutex_static);
test_contention_lock(&mutex_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_contention_lock(&mutex_fast);
CHECKr(pthread_mutex_destroy(&mutex_fast));
}
void
test_mutex_debug()
{
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_contention_lock(&mutex_debug);
test_debug_double_lock(&mutex_debug);
test_debug_double_unlock(&mutex_debug);
CHECKr(pthread_mutex_destroy(&mutex_debug));
}
int
main()
{
test_mutex_static();
test_mutex_fast();
test_mutex_debug();
SUCCEED;
}
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