80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/*************************************************************************/
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/* thread_safe.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef THREAD_SAFE_H
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#define THREAD_SAFE_H
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#include "os/mutex.h"
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class ThreadSafe {
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Mutex *mutex;
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public:
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inline void lock() const {
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if (mutex) mutex->lock();
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}
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inline void unlock() const {
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if (mutex) mutex->unlock();
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}
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ThreadSafe();
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~ThreadSafe();
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};
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class ThreadSafeMethod {
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const ThreadSafe *_ts;
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public:
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ThreadSafeMethod(const ThreadSafe *p_ts) {
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_ts = p_ts;
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_ts->lock();
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}
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~ThreadSafeMethod() { _ts->unlock(); }
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};
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#ifndef NO_THREADS
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#define _THREAD_SAFE_CLASS_ ThreadSafe __thread__safe__;
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#define _THREAD_SAFE_METHOD_ ThreadSafeMethod __thread_safe_method__(&__thread__safe__);
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#define _THREAD_SAFE_LOCK_ __thread__safe__.lock();
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#define _THREAD_SAFE_UNLOCK_ __thread__safe__.unlock();
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#else
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#define _THREAD_SAFE_CLASS_
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#define _THREAD_SAFE_METHOD_
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#define _THREAD_SAFE_LOCK_
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#define _THREAD_SAFE_UNLOCK_
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#endif
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#endif
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