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https://github.com/libretro/scummvm.git
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85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef COMMON_MUTEX_H
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#define COMMON_MUTEX_H
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#include "common/scummsys.h"
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#include "common/system.h"
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namespace Common {
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/**
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* @defgroup common_mutex Mutex
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* @ingroup common
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*
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* @brief API for managing the mutex.
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* @{
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*/
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class Mutex;
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class MutexInternal {
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public:
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virtual ~MutexInternal() {}
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virtual bool lock() = 0;
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virtual bool unlock() = 0;
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};
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/**
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* Auxillary class to (un)lock a mutex on the stack.
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*/
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class StackLock {
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MutexInternal *_mutex;
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const char *_mutexName;
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bool lock();
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bool unlock();
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public:
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explicit StackLock(MutexInternal *mutex, const char *mutexName = nullptr);
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explicit StackLock(const Mutex &mutex, const char *mutexName = nullptr);
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~StackLock();
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};
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/**
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* Wrapper class around the OSystem mutex functions.
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*/
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class Mutex {
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friend class StackLock;
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MutexInternal *_mutex;
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public:
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Mutex();
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~Mutex();
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bool lock();
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bool unlock();
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};
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/** @} */
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} // End of namespace Common
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#endif
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