godot/drivers/unix/mutex_posix.cpp

/*************************************************************************/
/*  mutex_posix.cpp                                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "mutex_posix.h"
#include "os/memory.h"

#if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)

void MutexPosix::lock() {

	pthread_mutex_lock(&mutex);
	
}
void MutexPosix::unlock() {

	pthread_mutex_unlock(&mutex);
}
Error MutexPosix::try_lock() {

	return (pthread_mutex_trylock(&mutex)==0)?OK:ERR_BUSY;
}

Mutex *MutexPosix::create_func_posix(bool p_recursive) {

	return memnew( MutexPosix(p_recursive) );
}

void MutexPosix::make_default() {

	create_func=create_func_posix;
}

MutexPosix::MutexPosix(bool p_recursive) {
	
	pthread_mutexattr_init(&attr);
	if (p_recursive)
		pthread_mutexattr_settype(&attr,PTHREAD_MUTEX_RECURSIVE);
	pthread_mutex_init(&mutex,&attr);
}


MutexPosix::~MutexPosix() {

	pthread_mutex_destroy(&mutex);
}


#endif