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/* Copyright (C) 2003-2025 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 <errno.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <support/check.h>
#include <support/timespec.h>
#include <support/xtime.h>
#include "eintr.c"
static pthread_mutex_t m1 = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t m2 = PTHREAD_MUTEX_INITIALIZER;
static void *
tf1 (void *arg)
{
struct timespec ts = timespec_add (xclock_now (CLOCK_REALTIME),
make_timespec (10000, 0));
/* This call must never return. */
int e = pthread_mutex_timedlock (&m1, &ts);
char buf[100];
printf ("tf1: mutex_timedlock returned: %s\n",
strerror_r (e, buf, sizeof (buf)));
exit (1);
}
static void *
tf2 (void *arg)
{
while (1)
{
TEST_COMPARE (pthread_mutex_lock (&m2), 0);
TEST_COMPARE (pthread_mutex_unlock (&m2), 0);
struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
nanosleep (&ts, NULL);
}
return NULL;
}
static int
do_test (void)
{
TEST_COMPARE (pthread_mutex_lock (&m1), 0);
setup_eintr (SIGUSR1, NULL);
char buf[100];
xpthread_create (NULL, tf1, NULL);
xpthread_create (NULL, tf2, NULL);
delayed_exit (3);
/* This call must never return. */
int e = pthread_mutex_lock (&m1);
printf ("main: mutex_lock returned: %s\n",
strerror_r (e, buf, sizeof (buf)));
return 1;
}
#include <support/test-driver.c>
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