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/* $OpenBSD: pthread_cond_timedwait.c,v 1.7 2013/12/21 05:39:21 guenther 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_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>
#include <unistd.h>
#include <stdlib.h>
#include "test.h"
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond;
static void *
thread_1(void * new_buf)
{
CHECKr(pthread_mutex_lock(&mutex));
CHECKr(pthread_cond_signal(&cond));
CHECKr(pthread_mutex_unlock(&mutex));
pthread_exit(NULL);
}
static void *
thread_2(void * new_buf)
{
sleep(1);
CHECKr(pthread_mutex_lock(&mutex));
CHECKr(pthread_cond_signal(&cond));
CHECKr(pthread_mutex_unlock(&mutex));
pthread_exit(NULL);
}
int
main(int argc, char *argv[])
{
struct timespec abstime;
struct timespec begtime;
struct timespec endtime;
pthread_t thread;
pthread_condattr_t condattr;
int ret;
int ix;
printf("pthread_cond_timedwait START\n");
CHECKr(pthread_condattr_init(&condattr));
CHECKr(pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC));
CHECKr(pthread_cond_init(&cond, &condattr));
CHECKr(pthread_mutex_lock(&mutex));
CHECKe(clock_gettime(CLOCK_MONOTONIC, &begtime));
abstime = begtime;
for (ix = 0; ix < 2; ix++) {
abstime.tv_sec += 5;
/* Test a condition timeout */
switch((ret = pthread_cond_timedwait(&cond, &mutex, &abstime))) {
case 0:
PANIC("pthread_cond_timedwait #0 failed to timeout");
/* NOTREACHED */
case ETIMEDOUT:
/* expected behaviour */
CHECKe(clock_gettime(CLOCK_MONOTONIC, &endtime));
timespecsub(&endtime, &begtime, &endtime);
printf("Got timeout %d in %lld.%09ld seconds\n", ix,
(long long)endtime.tv_sec, endtime.tv_nsec);
break;
default:
DIE(ret, "pthread_cond_timedwait");
/* NOTREACHED */
}
}
/* Test a normal condition signal */
CHECKr(pthread_create(&thread, NULL, thread_1, NULL));
abstime.tv_sec += 5;
CHECKr(pthread_cond_timedwait(&cond, &mutex, &abstime));
/* Test a normal condition signal after a sleep */
CHECKr(pthread_create(&thread, NULL, thread_2, NULL));
pthread_yield();
CHECKr(pthread_cond_timedwait(&cond, &mutex, &abstime));
SUCCEED;
}
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