mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* Test condition attributes and pthread_cond_timedwait.
|
|
Copyright (C) 2000-2020 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>
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
error_t err;
|
|
int i;
|
|
pthread_condattr_t attr;
|
|
pthread_cond_t cond;
|
|
struct timespec ts;
|
|
pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
|
|
struct timeval before, after;
|
|
int diff;
|
|
|
|
err = pthread_condattr_init (&attr);
|
|
if (err)
|
|
error (1, err, "pthread_condattr_init");
|
|
|
|
err = pthread_condattr_getpshared (&attr, &i);
|
|
if (err)
|
|
error (1, err, "pthread_condattr_getpshared");
|
|
assert (i == PTHREAD_PROCESS_PRIVATE);
|
|
|
|
err = pthread_condattr_setpshared (&attr, PTHREAD_PROCESS_PRIVATE);
|
|
assert (err == 0);
|
|
|
|
err = pthread_cond_init (&cond, &attr);
|
|
if (err)
|
|
error (1, err, "pthread_cond_init");
|
|
|
|
err = pthread_condattr_destroy (&attr);
|
|
if (err)
|
|
error (1, err, "pthread_condattr_destroy");
|
|
|
|
gettimeofday (&before, 0);
|
|
ts.tv_sec = before.tv_sec + 1;
|
|
ts.tv_nsec = before.tv_usec * 1000;
|
|
|
|
printf ("Starting wait @ %d\n", (int) before.tv_sec);
|
|
|
|
pthread_mutex_lock (&m);
|
|
err = pthread_cond_timedwait (&cond, &m, &ts);
|
|
|
|
gettimeofday (&after, 0);
|
|
|
|
printf ("End wait @ %d (err = %d)\n", (int) after.tv_sec, err);
|
|
|
|
assert (err == ETIMEDOUT);
|
|
|
|
diff = after.tv_sec * 1000000 + after.tv_usec
|
|
- before.tv_sec * 1000000 - before.tv_usec;
|
|
|
|
if (diff < 900000 || diff > 1100000)
|
|
error (1, EGRATUITOUS, "pthread_cond_timedwait waited %d us", diff);
|
|
|
|
return 0;
|
|
}
|