mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/* Copyright (C) 2002-2014 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
|
|
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
|
|
|
|
|
|
static void *
|
|
tf (void *arg)
|
|
{
|
|
if (pthread_mutex_lock (&lock) != 0)
|
|
{
|
|
puts ("child: mutex_lock failed");
|
|
return NULL;
|
|
}
|
|
|
|
return (void *) 42l;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
pthread_t th;
|
|
|
|
if (pthread_mutex_lock (&lock) != 0)
|
|
{
|
|
puts ("mutex_lock failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_create (&th, NULL, tf, NULL) != 0)
|
|
{
|
|
puts ("mutex_create failed");
|
|
exit (1);
|
|
}
|
|
|
|
void *status;
|
|
int val = pthread_tryjoin_np (th, &status);
|
|
if (val == 0)
|
|
{
|
|
puts ("1st tryjoin succeeded");
|
|
exit (1);
|
|
}
|
|
else if (val != EBUSY)
|
|
{
|
|
puts ("1st tryjoin didn't return EBUSY");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_mutex_unlock (&lock) != 0)
|
|
{
|
|
puts ("mutex_unlock failed");
|
|
exit (1);
|
|
}
|
|
|
|
while ((val = pthread_tryjoin_np (th, &status)) != 0)
|
|
{
|
|
if (val != EBUSY)
|
|
{
|
|
printf ("tryjoin returned %s (%d), expected only 0 or EBUSY\n",
|
|
strerror (val), val);
|
|
exit (1);
|
|
}
|
|
|
|
/* Delay minimally. */
|
|
struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
|
|
nanosleep (&ts, NULL);
|
|
}
|
|
|
|
if (status != (void *) 42l)
|
|
{
|
|
printf ("return value %p, expected %p\n", status, (void *) 42l);
|
|
exit (1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|