|
Packit |
6c4009 |
/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <pthread.h>
|
|
Packit |
6c4009 |
#include <stdio.h>
|
|
Packit |
6c4009 |
#include <stdlib.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <unistd.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static int do_test (void);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#define TEST_FUNCTION do_test ()
|
|
Packit |
6c4009 |
#include "../test-skeleton.c"
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Note that this test requires more than the standard. It is
|
|
Packit |
6c4009 |
required that there are no spurious wakeups if only more readers
|
|
Packit |
6c4009 |
are added. This is a reasonable demand. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
|
|
Packit |
6c4009 |
static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#define N 10
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static void *
|
|
Packit |
6c4009 |
tf (void *arg)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
int i = (long int) arg;
|
|
Packit |
6c4009 |
int err;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get the mutex. */
|
|
Packit |
6c4009 |
err = pthread_mutex_lock (&mut;;
|
|
Packit |
6c4009 |
if (err != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("child %d mutex_lock failed: %s\n", i, strerror (err));
|
|
Packit |
6c4009 |
exit (1);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* This call should never return. */
|
|
Packit |
6c4009 |
xpthread_cond_wait (&cond, &mut;;
|
|
Packit |
6c4009 |
puts ("error: pthread_cond_wait in tf returned");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* We should never get here. */
|
|
Packit |
6c4009 |
exit (1);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static int
|
|
Packit |
6c4009 |
do_test (void)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
int err;
|
|
Packit |
6c4009 |
int i;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
for (i = 0; i < N; ++i)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
pthread_t th;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (i != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
/* Release the mutex. */
|
|
Packit |
6c4009 |
err = pthread_mutex_unlock (&mut;;
|
|
Packit |
6c4009 |
if (err != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("mutex_unlock %d failed: %s\n", i, strerror (err));
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
err = pthread_create (&th, NULL, tf, (void *) (long int) i);
|
|
Packit |
6c4009 |
if (err != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("create %d failed: %s\n", i, strerror (err));
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get the mutex. */
|
|
Packit |
6c4009 |
err = pthread_mutex_lock (&mut;;
|
|
Packit |
6c4009 |
if (err != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("mutex_lock %d failed: %s\n", i, strerror (err));
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
delayed_exit (1);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* This call should never return. */
|
|
Packit |
6c4009 |
xpthread_cond_wait (&cond, &mut;;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
puts ("error: pthread_cond_wait in do_test returned");
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|