Mercurial > hg > orthanc-authorization
diff Plugin/MemoryCache.h @ 1:d5d3cb00556a
initial release
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 22 Mar 2017 16:13:52 +0100 |
parents | |
children | c44013681a51 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Plugin/MemoryCache.h Wed Mar 22 16:13:52 2017 +0100 @@ -0,0 +1,75 @@ +/** + * Advanced authorization plugin for Orthanc + * Copyright (C) 2017 Osimis, Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + +#pragma once + +#include "ICacheFactory.h" +#include "../Resources/Orthanc/Core/Cache/LeastRecentlyUsedIndex.h" + +#include <boost/thread/mutex.hpp> + +namespace OrthancPlugins +{ + class MemoryCache : public ICache + { + public: + class Factory : public ICacheFactory + { + private: + unsigned int maxSize_; + + public: + Factory(unsigned int maxSize) : + maxSize_(maxSize) + { + } + + virtual ICache *Create() + { + return new MemoryCache(maxSize_); + } + }; + + private: + class Payload; + + typedef Orthanc::LeastRecentlyUsedIndex<std::string, Payload*> Index; + + boost::mutex mutex_; + unsigned int maxSize_; + Index index_; + + void RemoveOldest(); + + void InvalidateInternal(const std::string& key); + + public: + MemoryCache(unsigned int maxSize); + + ~MemoryCache(); + + virtual void Invalidate(const std::string& key); + + virtual void Store(const std::string& key, + const std::string& value, + unsigned int expiration /* in seconds */); + + virtual bool Retrieve(std::string& value, + const std::string& key); + }; +}