mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/* C11 threads basic mutex tests.
|
|
Copyright (C) 2018-2019 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <threads.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#include <support/check.h>
|
|
|
|
/* Shared mutex between child and parent. */
|
|
static mtx_t mutex;
|
|
|
|
/* Shared counter to check possible race conditions. */
|
|
static int counter;
|
|
|
|
static int
|
|
child_add (void *arg)
|
|
{
|
|
if (mtx_lock (&mutex) != thrd_success)
|
|
FAIL_EXIT1 ("mtx_lock failed");
|
|
|
|
counter++;
|
|
|
|
if (mtx_unlock (&mutex) != thrd_success)
|
|
FAIL_EXIT1 ("mtx_unlock failed");
|
|
|
|
thrd_exit (thrd_success);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
mtx_init (&mutex, mtx_plain);
|
|
|
|
thrd_t id;
|
|
if (thrd_create (&id, child_add, NULL) != thrd_success)
|
|
FAIL_EXIT1 ("thrd_create failed");
|
|
|
|
if (mtx_lock (&mutex) != thrd_success)
|
|
FAIL_EXIT1 ("mtx_lock failed");
|
|
|
|
counter++;
|
|
|
|
if (mtx_unlock (&mutex) != thrd_success)
|
|
FAIL_EXIT1 ("mtx_unlock failed");
|
|
|
|
if (thrd_join (id, NULL) != thrd_success)
|
|
FAIL_EXIT1 ("thrd_join failed");
|
|
|
|
if (counter != 2)
|
|
FAIL_EXIT1 ("counter (%d) != 2", counter);
|
|
|
|
mtx_destroy (&mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|