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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 <stdio.h>
#include <errno.h>
#ifndef ETIME
#define ETIME ETIMEDOUT
#endif
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
void* thread_1(void * new_buf)
{
pthread_mutex_lock(&mutex);
pthread_cond_signal(&cond);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
void* thread_2(void * new_buf)
{
sleep(1);
pthread_mutex_lock(&mutex);
pthread_cond_signal(&cond);
pthread_mutex_unlock(&mutex);
pthread_exit(NULL);
}
main()
{
struct timespec abstime = { 0, 0 };
struct timeval curtime;
pthread_t thread;
int error;
pthread_init();
printf("pthread_cond_timedwait START\n");
pthread_mutex_lock(&mutex);
gettimeofday(&curtime, NULL);
abstime.tv_sec = curtime.tv_sec + 5;
/* Test a condition timeout */
if (pthread_cond_timedwait(&cond, &mutex, &abstime) != ETIME) {
printf("pthread_cond_timedwait failed to timeout\n");
printf("pthread_cond_timedwait FAILED\n");
pthread_mutex_unlock(&mutex);
exit(1);
}
printf("Got first timeout ok\n"); /* Added by monty */
/* Test a normal condition signal */
if (pthread_create(&thread, NULL, thread_1, NULL)) {
printf("pthread_create failed\n");
exit(2);
}
abstime.tv_sec = curtime.tv_sec + 10;
if (pthread_cond_timedwait(&cond, &mutex, &abstime)) {
printf("pthread_cond_timedwait #1 timedout\n");
printf("pthread_cond_timedwait FAILED\n");
pthread_mutex_unlock(&mutex);
exit(1);
}
/* Test a normal condition signal after a sleep */
if (pthread_create(&thread, NULL, thread_2, NULL)) {
printf("pthread_create failed\n");
exit(2);
}
pthread_yield();
abstime.tv_sec = curtime.tv_sec + 10;
if (pthread_cond_timedwait(&cond, &mutex, &abstime)) {
printf("pthread_cond_timedwait #2 timedout\n");
printf("pthread_cond_timedwait FAILED\n");
pthread_mutex_unlock(&mutex);
exit(1);
}
printf("pthread_cond_timedwait PASSED\n");
pthread_mutex_unlock(&mutex);
exit(0);
}
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