/*-
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* Copyright (c) 2015 embedded brains GmbH <info@embedded-brains.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD r279326 2015-02-26T16:39:57Z$
*/
#include <threads.h>
#include <sys/lock.h>
#include <errno.h>
void
mtx_destroy(mtx_t *mtx)
{
_Mutex_recursive_Destroy(mtx);
}
int
mtx_init(mtx_t *mtx, int type)
{
(void)type;
_Mutex_recursive_Initialize(mtx);
return (thrd_success);
}
int
mtx_lock(mtx_t *mtx)
{
_Mutex_recursive_Acquire(mtx);
return (thrd_success);
}
int
mtx_timedlock(mtx_t *restrict mtx, const struct timespec *restrict ts)
{
switch (_Mutex_recursive_Acquire_timed(mtx, ts)) {
case 0:
return (thrd_success);
case ETIMEDOUT:
return (thrd_timedout);
default:
return (thrd_error);
}
}
int
mtx_trylock(mtx_t *mtx)
{
switch (_Mutex_recursive_Try_acquire(mtx)) {
case 0:
return (thrd_success);
default:
return (thrd_busy);
}
}
int
mtx_unlock(mtx_t *mtx)
{
_Mutex_recursive_Release(mtx);
return (thrd_success);
}
