d8223ffa75
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
70 lines
3 KiB
C++
70 lines
3 KiB
C++
/*************************************************************************/
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/* mutex.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 MUTEX_H
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#define MUTEX_H
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#include "error_list.h"
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/**
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* @class Mutex
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* @author Juan Linietsky
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* Portable Mutex (thread-safe locking) implementation.
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* Mutexes are always recursive ( they don't self-lock in a single thread ).
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* Mutexes can be used with a Lockp object like this, to avoid having to worry about unlocking:
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* Lockp( mutex );
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*/
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class Mutex {
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protected:
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static Mutex* (*create_func)(bool);
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public:
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virtual void lock()=0; ///< Lock the mutex, block if locked by someone else
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virtual void unlock()=0; ///< Unlock the mutex, let other threads continue
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virtual Error try_lock()=0; ///< Attempt to lock the mutex, OK on success, ERROR means it can't lock.
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static Mutex * create(bool p_recursive=true); ///< Create a mutex
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virtual ~Mutex();
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};
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class MutexLock {
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Mutex *mutex;
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public:
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MutexLock(Mutex* p_mutex) { mutex=p_mutex; if (mutex) mutex->lock(); }
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~MutexLock() { if (mutex) mutex->unlock(); }
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};
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#endif
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