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182 lines
4.0 KiB
C
182 lines
4.0 KiB
C
/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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static int kind[] =
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{
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PTHREAD_RWLOCK_PREFER_READER_NP,
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PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
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PTHREAD_RWLOCK_PREFER_WRITER_NP,
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};
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static void *
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tf (void *arg)
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{
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pthread_rwlock_t *r = arg;
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/* Timeout: 0.3 secs. */
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struct timeval tv;
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(void) gettimeofday (&tv, NULL);
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struct timespec ts;
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_nsec += 300000000;
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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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int err = pthread_rwlock_timedwrlock (r, &ts);
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if (err == 0)
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{
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puts ("rwlock_timedwrlock returned");
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pthread_exit ((void *) 1l);
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}
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if (err != ETIMEDOUT)
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{
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printf ("err = %s (%d), expected %s (%d)\n",
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strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT);
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pthread_exit ((void *) 1l);
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}
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puts ("child: timedwrlock failed with ETIMEDOUT");
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struct timeval tv2;
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(void) gettimeofday (&tv2, NULL);
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timersub (&tv2, &tv, &tv);
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if (tv.tv_usec < 200000)
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{
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puts ("timeout too short");
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pthread_exit ((void *) 1l);
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}
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(void) gettimeofday (&tv, NULL);
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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ts.tv_sec += 10;
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/* Note that the following operation makes ts invalid. */
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ts.tv_nsec += 1000000000;
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err = pthread_rwlock_timedwrlock (r, &ts);
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if (err == 0)
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{
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puts ("2nd timedwrlock succeeded");
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pthread_exit ((void *) 1l);
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}
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if (err != EINVAL)
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{
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puts ("2nd timedwrlock did not return EINVAL");
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pthread_exit ((void *) 1l);
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}
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puts ("child: timedwrlock failed with EINVAL");
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return NULL;
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}
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static int
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do_test (void)
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{
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size_t cnt;
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for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt)
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{
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pthread_rwlock_t r;
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pthread_rwlockattr_t a;
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if (pthread_rwlockattr_init (&a) != 0)
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{
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printf ("round %Zu: rwlockattr_t failed\n", cnt);
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exit (1);
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}
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if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0)
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{
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printf ("round %Zu: rwlockattr_setkind failed\n", cnt);
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exit (1);
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}
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if (pthread_rwlock_init (&r, &a) != 0)
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{
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printf ("round %Zu: rwlock_init failed\n", cnt);
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exit (1);
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}
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if (pthread_rwlockattr_destroy (&a) != 0)
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{
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printf ("round %Zu: rwlockattr_destroy failed\n", cnt);
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exit (1);
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}
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struct timeval tv;
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(void) gettimeofday (&tv, NULL);
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struct timespec ts;
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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++ts.tv_sec;
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/* Get a read lock. */
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if (pthread_rwlock_timedrdlock (&r, &ts) != 0)
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{
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printf ("round %Zu: rwlock_timedrdlock failed\n", cnt);
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exit (1);
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}
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printf ("%zu: got timedrdlock\n", cnt);
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pthread_t th;
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if (pthread_create (&th, NULL, tf, &r) != 0)
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{
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printf ("round %Zu: create failed\n", cnt);
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exit (1);
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}
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void *status;
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if (pthread_join (th, &status) != 0)
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{
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printf ("round %Zu: join failed\n", cnt);
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exit (1);
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}
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if (status != NULL)
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{
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printf ("failure in round %Zu\n", cnt);
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exit (1);
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}
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if (pthread_rwlock_destroy (&r) != 0)
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{
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printf ("round %Zu: rwlock_destroy failed\n", cnt);
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exit (1);
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}
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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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