Mercurial > hg > orthanc
view OrthancFramework/Sources/Cache/MemoryCache.h @ 5420:d37dff2c0028 am-new-cache
Optimized the MemoryStringCache to prevent loading the same file multiple times if multiple users request the same file at the same time
author | Alain Mazy <am@osimis.io> |
---|---|
date | Mon, 13 Nov 2023 17:01:59 +0100 |
parents | 0ea402b4d901 |
children | 48b8dae6dc77 |
line wrap: on
line source
/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2023 Osimis S.A., Belgium * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #pragma once #include "../Compatibility.h" #include "ICachePageProvider.h" #include "LeastRecentlyUsedIndex.h" #include <memory> namespace Orthanc { namespace Deprecated { /** * WARNING: This class is NOT thread-safe. **/ class ORTHANC_PUBLIC MemoryCache : public boost::noncopyable { private: struct Page { std::string id_; std::unique_ptr<IDynamicObject> content_; }; ICachePageProvider& provider_; size_t cacheSize_; LeastRecentlyUsedIndex<std::string, Page*> index_; Page& Load(const std::string& id); public: MemoryCache(ICachePageProvider& provider, size_t cacheSize); ~MemoryCache(); IDynamicObject& Access(const std::string& id); void Invalidate(const std::string& id); }; } }