Бычков Андрей
ba8bc27298
git-svn-id: svn://db.shs.com.ru/libs@1 a8b55f48-bf90-11e4-a774-851b48703e85
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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PIP - Platform Independent Primitives
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Mutex
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Copyright (C) 2014 Ivan Pelipenko peri4ko@gmail.com
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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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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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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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#include "pimutex.h"
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/** \class PIMutex
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* \brief Mutex
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* \details
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* \section PIMutex_sec0 Synopsis
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* %PIMutex provides synchronization blocks between several threads.
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* Using mutex guarantees execution of some code only one of threads.
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* Mutex contains logic state and functions to change it: \a lock(),
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* \a unlock() and \a tryLock().
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*
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* \section PIMutex_sec1 Usage
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* Block of code that should to be executed only one thread simultaniously
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* should to be started with \a lock() and ended with \a unlock().
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* \snippet pimutex.cpp main
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* "mutex" in this example is one for all threads.
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*
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* */
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PIMutex::PIMutex() {
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#ifdef WINDOWS
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mutex = CreateMutex(0, false, 0);
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#else
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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pthread_mutex_init(&mutex, &attr);
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pthread_mutexattr_destroy(&attr);
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#endif
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}
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PIMutex::~PIMutex() {
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#ifdef WINDOWS
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if (mutex != 0) CloseHandle(mutex);
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#else
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pthread_mutex_destroy(&mutex);
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#endif
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}
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