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/*************************************************************************/
/* thread_safe.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#ifndef THREAD_SAFE_H
#define THREAD_SAFE_H
#include "core/os/mutex.h"
class ThreadSafe {
Mutex *mutex;
public:
inline void lock() const {
if (mutex) mutex->lock();
}
inline void unlock() const {
if (mutex) mutex->unlock();
}
ThreadSafe();
~ThreadSafe();
};
class ThreadSafeMethod {
const ThreadSafe *_ts;
public:
ThreadSafeMethod(const ThreadSafe *p_ts) {
_ts = p_ts;
_ts->lock();
}
~ThreadSafeMethod() { _ts->unlock(); }
};
#ifndef NO_THREADS
#define _THREAD_SAFE_CLASS_ ThreadSafe __thread__safe__;
#define _THREAD_SAFE_METHOD_ ThreadSafeMethod __thread_safe_method__(&__thread__safe__);
#define _THREAD_SAFE_LOCK_ __thread__safe__.lock();
#define _THREAD_SAFE_UNLOCK_ __thread__safe__.unlock();
#else
#define _THREAD_SAFE_CLASS_
#define _THREAD_SAFE_METHOD_
#define _THREAD_SAFE_LOCK_
#define _THREAD_SAFE_UNLOCK_
#endif
#endif
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