annotate Framework/OrthancInstancesCache.h @ 72:d60d1a3a7357 OrthancTransfers-1.4

fix md5
author Alain Mazy <am@osimis.io>
date Tue, 26 Mar 2024 10:16:15 +0100
parents 44a0430d7899
children 1e396fb509ca
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1 /**
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2 * Transfers accelerator plugin for Orthanc
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3 * Copyright (C) 2018-2021 Osimis S.A., Belgium
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4 *
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5 * This program is free software: you can redistribute it and/or
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6 * modify it under the terms of the GNU Affero General Public License
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7 * as published by the Free Software Foundation, either version 3 of
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8 * the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Affero General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Affero General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 **/
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20 #pragma once
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21
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22 #include "SourceDicomInstance.h"
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23 #include "TransferBucket.h"
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25 #include <Cache/LeastRecentlyUsedIndex.h>
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26 #include <Compatibility.h> // For std::unique_ptr
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28 #include <boost/thread/mutex.hpp>
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30 namespace OrthancPlugins
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31 {
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32 class OrthancInstancesCache : public boost::noncopyable
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33 {
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34 private:
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35 class CacheAccessor : public boost::noncopyable
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36 {
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37 private:
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38 boost::mutex::scoped_lock lock_;
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39 SourceDicomInstance *instance_;
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41 void CheckValid() const;
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43 public:
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44 CacheAccessor(OrthancInstancesCache& cache,
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45 const std::string& instanceId);
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46
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47 bool IsValid() const
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48 {
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49 return instance_ != NULL;
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50 }
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51
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52 const DicomInstanceInfo& GetInfo() const;
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53
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54 void GetChunk(std::string& chunk,
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55 std::string& md5,
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56 size_t offset,
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57 size_t size);
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58 };
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60
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61 typedef Orthanc::LeastRecentlyUsedIndex<std::string> Index;
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62 typedef std::map<std::string, SourceDicomInstance*> Content;
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63
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64 boost::mutex mutex_;
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65 Index index_;
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66 Content content_;
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67 size_t memorySize_;
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68 size_t maxMemorySize_;
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71 // The mutex must be locked!
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72 void CheckInvariants();
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74 // The mutex must be locked!
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75 void RemoveOldest();
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77 // The mutex must be locked!
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78 void Store(const std::string& instanceId,
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79 std::unique_ptr<SourceDicomInstance>& instance);
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82 public:
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83 OrthancInstancesCache();
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85 ~OrthancInstancesCache();
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86
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87 size_t GetMemorySize();
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89 size_t GetMaxMemorySize();
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91 void SetMaxMemorySize(size_t size);
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92
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93 void GetInstanceInfo(size_t& size,
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94 std::string& md5,
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95 const std::string& instanceId);
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96
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97 void GetChunk(std::string& chunk,
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98 std::string& md5,
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99 const std::string& instanceId,
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100 size_t offset,
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101 size_t size);
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102
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103 void GetChunk(std::string& chunk,
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104 std::string& md5,
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105 const TransferBucket& bucket,
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106 size_t chunkIndex);
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107 };
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108 }