mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 14:30:06 +00:00
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/* Test pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock.
|
|
Copyright (C) 2000-2024 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/>. */
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <error.h>
|
|
#include <errno.h>
|
|
#include <sys/time.h>
|
|
|
|
#define THREADS 10
|
|
|
|
pthread_rwlock_t rwlock;
|
|
|
|
void *
|
|
test (void *arg)
|
|
{
|
|
error_t err;
|
|
int foo = (int) arg;
|
|
struct timespec ts;
|
|
struct timeval before, after;
|
|
int diff;
|
|
|
|
gettimeofday (&before, 0);
|
|
ts.tv_sec = before.tv_sec + 1;
|
|
ts.tv_nsec = before.tv_usec * 1000;
|
|
|
|
printf ("Thread %d starting wait @ %d\n", pthread_self (),
|
|
(int) before.tv_sec);
|
|
|
|
if (foo % 2 == 0)
|
|
err = pthread_rwlock_timedrdlock (&rwlock, &ts);
|
|
else
|
|
err = pthread_rwlock_timedwrlock (&rwlock, &ts);
|
|
|
|
assert (err == ETIMEDOUT);
|
|
|
|
gettimeofday (&after, 0);
|
|
|
|
printf ("Thread %d ending wait @ %d\n", pthread_self (), (int) after.tv_sec);
|
|
|
|
diff = after.tv_sec * 1000000 + after.tv_usec
|
|
- before.tv_sec * 1000000 - before.tv_usec;
|
|
|
|
if (diff < 900000 || diff > 1100000)
|
|
error (1, EGRATUITOUS, "pthread_mutex_timedlock waited %d us", diff);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
error_t err;
|
|
int i;
|
|
pthread_t tid[THREADS];
|
|
|
|
err = pthread_rwlock_init (&rwlock, 0);
|
|
if (err)
|
|
error (1, err, "pthread_rwlock_init");
|
|
|
|
/* Lock it so all the threads will block. */
|
|
err = pthread_rwlock_wrlock (&rwlock);
|
|
assert (err == 0);
|
|
|
|
for (i = 0; i < THREADS; i++)
|
|
{
|
|
err = pthread_create (&tid[i], 0, test, (void *) i);
|
|
if (err)
|
|
error (1, err, "pthread_create");
|
|
}
|
|
|
|
for (i = 0; i < THREADS; i++)
|
|
{
|
|
void *ret;
|
|
|
|
err = pthread_join (tid[i], &ret);
|
|
if (err)
|
|
error (1, err, "pthread_join");
|
|
|
|
assert (ret == 0);
|
|
}
|
|
|
|
return 0;
|
|
}
|