Mercurial > hg > orthanc
view Core/Cache/SharedArchive.cpp @ 2956:bfee0b9f3209
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 03 Dec 2018 15:11:42 +0100 |
parents | 4dcafa8d6633 |
children | cb5d75143da0 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2018 Osimis S.A., 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 "SharedArchive.h" #include "../Toolbox.h" namespace Orthanc { void SharedArchive::RemoveInternal(const std::string& id) { Archive::iterator it = archive_.find(id); if (it != archive_.end()) { delete it->second; archive_.erase(it); } } SharedArchive::Accessor::Accessor(SharedArchive& that, const std::string& id) : lock_(that.mutex_) { Archive::iterator it = that.archive_.find(id); if (it == that.archive_.end()) { throw OrthancException(ErrorCode_InexistentItem); } else { that.lru_.MakeMostRecent(id); item_ = it->second; } } SharedArchive::SharedArchive(size_t maxSize) : maxSize_(maxSize) { if (maxSize == 0) { throw OrthancException(ErrorCode_ParameterOutOfRange); } } SharedArchive::~SharedArchive() { for (Archive::iterator it = archive_.begin(); it != archive_.end(); ++it) { delete it->second; } } std::string SharedArchive::Add(IDynamicObject* obj) { boost::mutex::scoped_lock lock(mutex_); if (archive_.size() == maxSize_) { // The quota has been reached, remove the oldest element std::string oldest = lru_.RemoveOldest(); RemoveInternal(oldest); } std::string id = Toolbox::GenerateUuid(); RemoveInternal(id); // Should never be useful because of UUID archive_[id] = obj; lru_.Add(id); return id; } void SharedArchive::Remove(const std::string& id) { boost::mutex::scoped_lock lock(mutex_); RemoveInternal(id); lru_.Invalidate(id); } void SharedArchive::List(std::list<std::string>& items) { items.clear(); boost::mutex::scoped_lock lock(mutex_); for (Archive::const_iterator it = archive_.begin(); it != archive_.end(); ++it) { items.push_back(it->first); } } }