169 lines
3.7 KiB
C
169 lines
3.7 KiB
C
/* Copyright (C) 2004-2018 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>, 2004.
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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 <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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static pthread_barrier_t b;
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static pthread_rwlock_t r = PTHREAD_RWLOCK_INITIALIZER;
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static void *
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tf (void *arg)
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{
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/* Lock the read-write lock. */
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if (pthread_rwlock_wrlock (&r) != 0)
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{
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puts ("tf: cannot lock rwlock");
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exit (EXIT_FAILURE);
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}
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pthread_t mt = *(pthread_t *) arg;
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pthread_barrier_wait (&b);
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/* This call will never return. */
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pthread_join (mt, NULL);
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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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int result = 0;
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struct timespec ts;
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if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
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{
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puts ("clock_gettime failed");
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return 1;
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}
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if (pthread_barrier_init (&b, NULL, 2) != 0)
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{
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puts ("barrier_init failed");
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return 1;
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}
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pthread_t me = pthread_self ();
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pthread_t th;
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if (pthread_create (&th, NULL, tf, &me) != 0)
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{
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puts ("create failed");
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return 1;
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}
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/* Wait until the rwlock is locked. */
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pthread_barrier_wait (&b);
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ts.tv_nsec = -1;
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int e = pthread_rwlock_timedrdlock (&r, &ts);
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if (e == 0)
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{
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puts ("first rwlock_timedrdlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("first rwlock_timedrdlock did not return EINVAL");
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result = 1;
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}
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e = pthread_rwlock_timedwrlock (&r, &ts);
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if (e == 0)
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{
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puts ("first rwlock_timedwrlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("first rwlock_timedwrlock did not return EINVAL");
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result = 1;
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}
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ts.tv_nsec = 1000000000;
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e = pthread_rwlock_timedrdlock (&r, &ts);
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if (e == 0)
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{
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puts ("second rwlock_timedrdlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("second rwlock_timedrdlock did not return EINVAL");
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result = 1;
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}
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e = pthread_rwlock_timedrdlock (&r, &ts);
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if (e == 0)
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{
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puts ("second rwlock_timedrdlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("second rwlock_timedrdlock did not return EINVAL");
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result = 1;
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}
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ts.tv_nsec = (__typeof (ts.tv_nsec)) 0x100001000LL;
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if ((__typeof (ts.tv_nsec)) 0x100001000LL != 0x100001000LL)
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ts.tv_nsec = 2000000000;
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e = pthread_rwlock_timedrdlock (&r, &ts);
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if (e == 0)
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{
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puts ("third rwlock_timedrdlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("third rwlock_timedrdlock did not return EINVAL");
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result = 1;
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}
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e = pthread_rwlock_timedrdlock (&r, &ts);
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if (e == 0)
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{
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puts ("third rwlock_timedrdlock did not fail");
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result = 1;
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}
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else if (e != EINVAL)
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{
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puts ("third rwlock_timedrdlock did not return EINVAL");
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result = 1;
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}
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if (result == 0)
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puts ("no bugs");
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return result;
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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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