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common/mutex.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef COMMON_MUTEX_H
00024 #define COMMON_MUTEX_H
00025 
00026 #include "common/scummsys.h"
00027 #include "common/system.h"
00028 
00029 namespace Common {
00030 
00031 class Mutex;
00032 
00036 typedef OSystem::MutexRef MutexRef;
00037 
00038 
00042 class StackLock {
00043     MutexRef _mutex;
00044     const char *_mutexName;
00045 
00046     void lock();
00047     void unlock();
00048 public:
00049     explicit StackLock(MutexRef mutex, const char *mutexName = nullptr);
00050     explicit StackLock(const Mutex &mutex, const char *mutexName = nullptr);
00051     ~StackLock();
00052 };
00053 
00054 
00058 class Mutex {
00059     friend class StackLock;
00060 
00061     MutexRef _mutex;
00062 
00063 public:
00064     Mutex();
00065     ~Mutex();
00066 
00067     void lock();
00068     void unlock();
00069 };
00070 
00071 
00072 } // End of namespace Common
00073 
00074 #endif


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