Mercurial > hg > orthanc-wsi
diff ViewerPlugin/DicomPyramidCache.h @ 73:a8c90aa32ca6
LRU caching of pyramids, OrthancWSIClearCache script
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 28 Nov 2016 16:51:19 +0100 |
parents | |
children | ff0ef01c332c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ViewerPlugin/DicomPyramidCache.h Mon Nov 28 16:51:19 2016 +0100 @@ -0,0 +1,70 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2016 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 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 "../Framework/Inputs/DicomPyramid.h" +#include "../Resources/Orthanc/Core/Cache/LeastRecentlyUsedIndex.h" + +#include <boost/thread/mutex.hpp> + +namespace OrthancWSI +{ + class DicomPyramidCache : public boost::noncopyable + { + private: + typedef Orthanc::LeastRecentlyUsedIndex<std::string, DicomPyramid*> Cache; + + boost::mutex mutex_; + OrthancPlugins::IOrthancConnection& orthanc_; + size_t maxSize_; + Cache cache_; + + + DicomPyramid* GetCachedPyramid(const std::string& seriesId); + + DicomPyramid& GetPyramid(const std::string& seriesId, + boost::mutex::scoped_lock& lock); + + public: + DicomPyramidCache(OrthancPlugins::IOrthancConnection& orthanc, + size_t maxSize); + + ~DicomPyramidCache(); + + void Invalidate(const std::string& seriesId); + + class Locker : public boost::noncopyable + { + private: + boost::mutex::scoped_lock lock_; + DicomPyramid& pyramid_; + + public: + Locker(DicomPyramidCache& cache, + const std::string& seriesId); + + DicomPyramid& GetPyramid() const + { + return pyramid_; + } + }; + }; +}