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/* $NetBSD: t_condwait.c,v 1.4 2013/04/12 17:18:11 christos Exp $ */
/*
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION 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.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_condwait.c,v 1.4 2013/04/12 17:18:11 christos Exp $");
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <atf-c.h>
#include "isqemu.h"
#ifdef __FreeBSD__
#include <sys/time.h>
#include "h_common.h"
#endif
#define WAITTIME 2 /* Timeout wait secound */
static const int debug = 1;
static void *
run(void *param)
{
struct timespec ts, to, te;
clockid_t clck;
pthread_condattr_t attr;
pthread_cond_t cond;
pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
int ret = 0;
clck = *(clockid_t *)param;
#ifdef __FreeBSD__
PTHREAD_REQUIRE(pthread_condattr_init(&attr));
PTHREAD_REQUIRE(pthread_condattr_setclock(&attr, clck));
#else
pthread_condattr_init(&attr);
pthread_condattr_setclock(&attr, clck); /* MONOTONIC or MONOTONIC */
#endif
pthread_cond_init(&cond, &attr);
ATF_REQUIRE_EQ((ret = pthread_mutex_lock(&m)), 0);
ATF_REQUIRE_EQ(clock_gettime(clck, &ts), 0);
to = ts;
if (debug)
printf("started: %lld.%09ld sec\n", (long long)to.tv_sec,
to.tv_nsec);
ts.tv_sec += WAITTIME; /* Timeout wait */
switch (ret = pthread_cond_timedwait(&cond, &m, &ts)) {
case ETIMEDOUT:
/* Timeout */
ATF_REQUIRE_EQ(clock_gettime(clck, &te), 0);
timespecsub(&te, &to, &to);
if (debug) {
printf("timeout: %lld.%09ld sec\n",
(long long)te.tv_sec, te.tv_nsec);
printf("elapsed: %lld.%09ld sec\n",
(long long)to.tv_sec, to.tv_nsec);
}
if (isQEMU()) {
double to_seconds = to.tv_sec + 1e-9 * to.tv_nsec;
ATF_REQUIRE(to_seconds >= WAITTIME * 0.9);
/* Loose upper limit because of qemu timing bugs */
ATF_REQUIRE(to_seconds < WAITTIME * 2.5);
} else {
ATF_REQUIRE_EQ(to.tv_sec, WAITTIME);
}
break;
default:
ATF_REQUIRE_MSG(0, "pthread_cond_timedwait: %s", strerror(ret));
}
ATF_REQUIRE_MSG(!(ret = pthread_mutex_unlock(&m)),
"pthread_mutex_unlock: %s", strerror(ret));
pthread_exit(&ret);
}
static void
cond_wait(clockid_t clck, const char *msg) {
pthread_t child;
if (debug)
printf( "**** %s clock wait starting\n", msg);
ATF_REQUIRE_EQ(pthread_create(&child, NULL, run, &clck), 0);
ATF_REQUIRE_EQ(pthread_join(child, NULL), 0); /* wait for terminate */
if (debug)
printf( "**** %s clock wait ended\n", msg);
}
ATF_TC(cond_wait_real);
ATF_TC_HEAD(cond_wait_real, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
"with CLOCK_REALTIME");
}
ATF_TC_BODY(cond_wait_real, tc) {
cond_wait(CLOCK_REALTIME, "CLOCK_REALTIME");
}
ATF_TC(cond_wait_mono);
ATF_TC_HEAD(cond_wait_mono, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait "
"with CLOCK_MONOTONIC");
}
ATF_TC_BODY(cond_wait_mono, tc) {
cond_wait(CLOCK_MONOTONIC, "CLOCK_MONOTONIC");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, cond_wait_real);
ATF_TP_ADD_TC(tp, cond_wait_mono);
return 0;
}
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