105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
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/* Copyright (C) 2002-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <sys/time.h>
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static pthread_mutex_t mut;
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static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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static int
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do_test (void)
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{
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pthread_mutexattr_t ma;
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int err;
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struct timespec ts;
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struct timeval tv;
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if (pthread_mutexattr_init (&ma) != 0)
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{
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puts ("mutexattr_init failed");
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exit (1);
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}
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if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0)
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{
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puts ("mutexattr_settype failed");
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exit (1);
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}
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if (pthread_mutex_init (&mut, &ma) != 0)
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{
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puts ("mutex_init failed");
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exit (1);
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}
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/* Get the mutex. */
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if (pthread_mutex_lock (&mut) != 0)
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{
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puts ("mutex_lock failed");
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exit (1);
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}
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/* Waiting for the condition will fail. But we want the timeout here. */
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if (gettimeofday (&tv, NULL) != 0)
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{
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puts ("gettimeofday failed");
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exit (1);
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}
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_nsec += 500000000;
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if (ts.tv_nsec >= 1000000000)
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{
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ts.tv_nsec -= 1000000000;
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++ts.tv_sec;
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}
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err = pthread_cond_timedwait (&cond, &mut, &ts);
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if (err == 0)
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{
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/* This could in theory happen but here without any signal and
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additional waiter it should not. */
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puts ("cond_timedwait succeeded");
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exit (1);
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}
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else if (err != ETIMEDOUT)
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{
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printf ("cond_timedwait returned with %s\n", strerror (err));
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exit (1);
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}
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err = pthread_mutex_unlock (&mut);
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if (err != 0)
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{
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printf ("mutex_unlock failed: %s\n", strerror (err));
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exit (1);
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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