Mercurial > hg > orthanc
view Core/MultiThreading/ReaderWriterLock.cpp @ 1508:86394eb9f5bb
merge
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 07 Aug 2015 20:14:49 +0200 |
parents | 6e7e5ed91c2d |
children | b1291df2f780 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "ReaderWriterLock.h" #include <boost/thread/shared_mutex.hpp> namespace Orthanc { namespace { // Anonymous namespace to avoid clashes between compilation // modules. class ReaderLockable : public ILockable { private: boost::shared_mutex& lock_; protected: virtual void Lock() { lock_.lock_shared(); } virtual void Unlock() { lock_.unlock_shared(); } public: ReaderLockable(boost::shared_mutex& lock) : lock_(lock) { } }; class WriterLockable : public ILockable { private: boost::shared_mutex& lock_; protected: virtual void Lock() { lock_.lock(); } virtual void Unlock() { lock_.unlock(); } public: WriterLockable(boost::shared_mutex& lock) : lock_(lock) { } }; } struct ReaderWriterLock::PImpl { boost::shared_mutex lock_; ReaderLockable reader_; WriterLockable writer_; PImpl() : reader_(lock_), writer_(lock_) { } }; ReaderWriterLock::ReaderWriterLock() { pimpl_ = new PImpl; } ReaderWriterLock::~ReaderWriterLock() { delete pimpl_; } ILockable& ReaderWriterLock::ForReader() { return pimpl_->reader_; } ILockable& ReaderWriterLock::ForWriter() { return pimpl_->writer_; } }