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/* Test that pthread_mutex_timedlock properly times out.
Copyright (C) 2016-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
pthread_mutex_t mutex;
static void *
thr (void *arg)
{
struct timespec abstime;
clock_gettime (CLOCK_REALTIME, &abstime);
abstime.tv_sec += 1;
int ret = pthread_mutex_timedlock (&mutex, &abstime);
if (ret == 0)
{
puts ("mutex_timedlock didn't fail");
exit (1);
}
if (ret != ETIMEDOUT)
{
printf ("mutex_timedlock failed: %s\n", strerror (ret));
exit (1);
}
return 0;
}
static int
do_test (void)
{
pthread_t pt;
pthread_mutexattr_t ma;
if (pthread_mutexattr_init (&ma) != 0)
{
puts ("mutexattr_init failed");
return 0;
}
if (pthread_mutexattr_setrobust (&ma, PTHREAD_MUTEX_ROBUST_NP) != 0)
{
puts ("mutexattr_setrobust failed");
return 1;
}
if (pthread_mutex_init (&mutex, &ma))
{
puts ("mutex_init failed");
return 1;
}
if (pthread_mutexattr_destroy (&ma))
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_mutex_lock (&mutex))
{
puts ("mutex_lock failed");
return 1;
}
if (pthread_create (&pt, NULL, thr, NULL))
{
puts ("pthread_create failed");
return 1;
}
if (pthread_join (pt, NULL))
{
puts ("pthread_join failed");
return 1;
}
if (pthread_mutex_unlock (&mutex))
{
puts ("mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (&mutex))
{
puts ("mutex_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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