godot/drivers/unix/mutex_posix.cpp

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/*************************************************************************/
/* mutex_posix.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
/* 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. */
/*************************************************************************/
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#include "mutex_posix.h"
#include "core/os/memory.h"
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#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;
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}
Mutex *MutexPosix::create_func_posix(bool p_recursive) {
return memnew(MutexPosix(p_recursive));
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}
void MutexPosix::make_default() {
create_func = create_func_posix;
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}
MutexPosix::MutexPosix(bool p_recursive) {
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pthread_mutexattr_init(&attr);
if (p_recursive)
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&mutex, &attr);
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}
MutexPosix::~MutexPosix() {
pthread_mutex_destroy(&mutex);
}
#endif