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annotate OrthancFramework/Sources/DicomParsing/ParsedDicomCache.h @ 5853:4d932683049d get-scu tip

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very first implementation of C-Get SCU
author Alain Mazy <am@orthanc.team>
date Tue, 29 Oct 2024 17:25:49 +0100
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Lesser General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Lesser General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Lesser General Public
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20 * License along with this program. If not, see
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21 * <http://www.gnu.org/licenses/>.
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22 **/
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23
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24
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25 #pragma once
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26
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27 #include "../Cache/MemoryObjectCache.h"
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28 #include "ParsedDicomFile.h"
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29
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30 namespace Orthanc
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31 {
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32 class ORTHANC_PUBLIC ParsedDicomCache : public boost::noncopyable
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33 {
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34 private:
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35 class Item;
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36
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37 #if !defined(__EMSCRIPTEN__)
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38 boost::mutex mutex_;
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39 #endif
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40
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41 size_t cacheSize_;
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42 std::unique_ptr<MemoryObjectCache> cache_;
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43 std::unique_ptr<ParsedDicomFile> largeDicom_;
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44 std::string largeId_;
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45 size_t largeSize_;
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46
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47 public:
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48 explicit ParsedDicomCache(size_t size);
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49
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50 size_t GetNumberOfItems(); // For unit tests only
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51
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52 size_t GetCurrentSize(); // For unit tests only
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53
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54 void Invalidate(const std::string& id);
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55
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56 void Acquire(const std::string& id,
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57 ParsedDicomFile* dicom, // Takes ownership
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58 size_t fileSize);
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59
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60 class ORTHANC_PUBLIC Accessor : public boost::noncopyable
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61 {
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62 private:
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63 #if !defined(__EMSCRIPTEN__)
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64 boost::mutex::scoped_lock lock_;
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65 #endif
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66
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67 std::string id_;
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68 ParsedDicomFile* file_;
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69 size_t fileSize_;
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70
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71 std::unique_ptr<MemoryObjectCache::Accessor> accessor_;
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72
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73 public:
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74 Accessor(ParsedDicomCache& that,
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75 const std::string& id);
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76
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77 bool IsValid() const;
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78
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79 ParsedDicomFile& GetDicom() const;
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80
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81 size_t GetFileSize() const;
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82 };
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83 };
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84 }