Mercurial > hg > orthanc
view OrthancFramework/Sources/FileStorage/StorageCache.cpp @ 5897:2fc5667633e6 find-refactoring
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 03 Dec 2024 14:12:17 +0100 |
parents | f7adfb22e20e |
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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) 2017-2023 Osimis S.A., Belgium * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium * Copyright (C) 2021-2024 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/>. **/ #include "../PrecompiledHeaders.h" #include "StorageCache.h" #include "../Compatibility.h" #include "../Logging.h" #include "../OrthancException.h" #include <boost/lexical_cast.hpp> namespace Orthanc { static std::string GetCacheKeyFullFile(const std::string& uuid, FileContentType contentType) { return uuid + ":" + boost::lexical_cast<std::string>(contentType) + ":1"; } static std::string GetCacheKeyStartRange(const std::string& uuid, FileContentType contentType) { return uuid + ":" + boost::lexical_cast<std::string>(contentType) + ":0"; } static std::string GetCacheKeyTranscodedInstance(const std::string& uuid, DicomTransferSyntax transferSyntax) { return uuid + ":ts:" + GetTransferSyntaxUid(transferSyntax); } void StorageCache::SetMaximumSize(size_t size) { cache_.SetMaximumSize(size); } void StorageCache::Invalidate(const std::string& uuid, FileContentType contentType) { std::set<DicomTransferSyntax> transferSyntaxes; { boost::mutex::scoped_lock lock(subKeysMutex_); transferSyntaxes = subKeysTransferSyntax_; } // invalidate full file, start range file and possible transcoded instances const std::string keyFullFile = GetCacheKeyFullFile(uuid, contentType); cache_.Invalidate(keyFullFile); const std::string keyPartialFile = GetCacheKeyStartRange(uuid, contentType); cache_.Invalidate(keyPartialFile); for (std::set<DicomTransferSyntax>::const_iterator it = transferSyntaxes.begin(); it != transferSyntaxes.end(); ++it) { const std::string keyTransferSyntax = GetCacheKeyTranscodedInstance(uuid, *it); cache_.Invalidate(keyTransferSyntax); } } StorageCache::Accessor::Accessor(StorageCache& cache) : MemoryStringCache::Accessor(cache.cache_), storageCache_(cache) { } void StorageCache::Accessor::Add(const std::string& uuid, FileContentType contentType, const std::string& value) { std::string key = GetCacheKeyFullFile(uuid, contentType); MemoryStringCache::Accessor::Add(key, value); } void StorageCache::Accessor::AddStartRange(const std::string& uuid, FileContentType contentType, const std::string& value) { const std::string key = GetCacheKeyStartRange(uuid, contentType); MemoryStringCache::Accessor::Add(key, value); } void StorageCache::Accessor::Add(const std::string& uuid, FileContentType contentType, const void* buffer, size_t size) { const std::string key = GetCacheKeyFullFile(uuid, contentType); MemoryStringCache::Accessor::Add(key, reinterpret_cast<const char*>(buffer), size); } bool StorageCache::Accessor::Fetch(std::string& value, const std::string& uuid, FileContentType contentType) { const std::string key = GetCacheKeyFullFile(uuid, contentType); if (MemoryStringCache::Accessor::Fetch(value, key)) { LOG(INFO) << "Read attachment \"" << uuid << "\" with content type " << boost::lexical_cast<std::string>(contentType) << " from cache"; return true; } else { return false; } } bool StorageCache::Accessor::FetchTranscodedInstance(std::string& value, const std::string& uuid, DicomTransferSyntax targetSyntax) { const std::string key = GetCacheKeyTranscodedInstance(uuid, targetSyntax); if (MemoryStringCache::Accessor::Fetch(value, key)) { LOG(INFO) << "Read instance \"" << uuid << "\" transcoded to " << GetTransferSyntaxUid(targetSyntax) << " from cache"; return true; } else { return false; } } void StorageCache::Accessor::AddTranscodedInstance(const std::string& uuid, DicomTransferSyntax targetSyntax, const void* buffer, size_t size) { { boost::mutex::scoped_lock lock(storageCache_.subKeysMutex_); storageCache_.subKeysTransferSyntax_.insert(targetSyntax); } const std::string key = GetCacheKeyTranscodedInstance(uuid, targetSyntax); MemoryStringCache::Accessor::Add(key, reinterpret_cast<const char*>(buffer), size); } bool StorageCache::Accessor::FetchStartRange(std::string& value, const std::string& uuid, FileContentType contentType, uint64_t end /* exclusive */) { const std::string keyPartialFile = GetCacheKeyStartRange(uuid, contentType); if (MemoryStringCache::Accessor::Fetch(value, keyPartialFile) && value.size() >= end) { if (value.size() > end) // the start range that has been cached is larger than the requested value { value.resize(end); } LOG(INFO) << "Read start of attachment \"" << uuid << "\" with content type " << boost::lexical_cast<std::string>(contentType) << " from cache"; return true; } return false; } size_t StorageCache::GetCurrentSize() const { return cache_.GetCurrentSize(); } size_t StorageCache::GetNumberOfItems() const { return cache_.GetNumberOfItems(); } }