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/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <support/check.h>
#include <support/timespec.h>
#include <support/xthread.h>
#include <support/xtime.h>
static int kind[] =
{
PTHREAD_RWLOCK_PREFER_READER_NP,
PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
PTHREAD_RWLOCK_PREFER_WRITER_NP,
};
static void *
tf (void *arg)
{
pthread_rwlock_t *r = arg;
/* Timeout: 0.3 secs. */
struct timespec ts_start;
xclock_gettime (CLOCK_REALTIME, &ts_start);
const struct timespec ts_timeout = timespec_add (ts_start,
make_timespec (0, 300000000));
TEST_COMPARE (pthread_rwlock_timedwrlock (r, &ts_timeout), ETIMEDOUT);
puts ("child: timedwrlock failed with ETIMEDOUT");
TEST_TIMESPEC_NOW_OR_AFTER (CLOCK_REALTIME, ts_timeout);
struct timespec ts_invalid;
xclock_gettime (CLOCK_REALTIME, &ts_invalid);
ts_invalid.tv_sec += 10;
/* Note that the following operation makes ts invalid. */
ts_invalid.tv_nsec += 1000000000;
TEST_COMPARE (pthread_rwlock_timedwrlock (r, &ts_invalid), EINVAL);
puts ("child: timedwrlock failed with EINVAL");
return NULL;
}
static int
do_test (void)
{
size_t cnt;
for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt)
{
pthread_rwlock_t r;
pthread_rwlockattr_t a;
if (pthread_rwlockattr_init (&a) != 0)
FAIL_EXIT1 ("round %Zu: rwlockattr_t failed\n", cnt);
if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0)
FAIL_EXIT1 ("round %Zu: rwlockattr_setkind failed\n", cnt);
if (pthread_rwlock_init (&r, &a) != 0)
FAIL_EXIT1 ("round %Zu: rwlock_init failed\n", cnt);
if (pthread_rwlockattr_destroy (&a) != 0)
FAIL_EXIT1 ("round %Zu: rwlockattr_destroy failed\n", cnt);
struct timespec ts;
xclock_gettime (CLOCK_REALTIME, &ts);
++ts.tv_sec;
/* Get a read lock. */
if (pthread_rwlock_timedrdlock (&r, &ts) != 0)
FAIL_EXIT1 ("round %Zu: rwlock_timedrdlock failed\n", cnt);
printf ("%zu: got timedrdlock\n", cnt);
pthread_t th;
if (pthread_create (&th, NULL, tf, &r) != 0)
FAIL_EXIT1 ("round %Zu: create failed\n", cnt);
void *status;
if (pthread_join (th, &status) != 0)
FAIL_EXIT1 ("round %Zu: join failed\n", cnt);
if (status != NULL)
FAIL_EXIT1 ("failure in round %Zu\n", cnt);
if (pthread_rwlock_destroy (&r) != 0)
FAIL_EXIT1 ("round %Zu: rwlock_destroy failed\n", cnt);
}
return 0;
}
#include <support/test-driver.c>
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