Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Cache/SharedArchive.cpp @ 4844:55e8fb8e8028
tagging a pre-release of the Orthanc framework for WSI 1.1
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 07 Dec 2021 14:01:17 +0100 |
| parents | 7053502fbf97 |
| children | 43e613a7756b |
| rev | line source |
|---|---|
| 1367 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 1367 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 1367 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
| 1367 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
| 1367 | 17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 1367 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "../PrecompiledHeaders.h" | |
| 25 #include "SharedArchive.h" | |
| 26 | |
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27 #include "../Toolbox.h" |
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28 |
| 1367 | 29 |
| 30 namespace Orthanc | |
| 31 { | |
| 32 void SharedArchive::RemoveInternal(const std::string& id) | |
| 33 { | |
| 34 Archive::iterator it = archive_.find(id); | |
| 35 | |
| 36 if (it != archive_.end()) | |
| 37 { | |
| 38 delete it->second; | |
| 39 archive_.erase(it); | |
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40 |
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41 lru_.Invalidate(id); |
| 1367 | 42 } |
| 43 } | |
| 44 | |
| 45 | |
| 46 SharedArchive::Accessor::Accessor(SharedArchive& that, | |
| 47 const std::string& id) : | |
| 48 lock_(that.mutex_) | |
| 49 { | |
| 50 Archive::iterator it = that.archive_.find(id); | |
| 51 | |
| 52 if (it == that.archive_.end()) | |
| 53 { | |
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54 item_ = NULL; |
| 1367 | 55 } |
| 56 else | |
| 57 { | |
| 58 that.lru_.MakeMostRecent(id); | |
| 59 item_ = it->second; | |
| 60 } | |
| 61 } | |
| 62 | |
| 4300 | 63 bool SharedArchive::Accessor::IsValid() const |
| 64 { | |
| 65 return item_ != NULL; | |
| 66 } | |
| 67 | |
| 1367 | 68 |
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69 IDynamicObject& SharedArchive::Accessor::GetItem() const |
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70 { |
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71 if (item_ == NULL) |
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72 { |
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73 // "IsValid()" should have been called |
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74 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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75 } |
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76 else |
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77 { |
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78 return *item_; |
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79 } |
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80 } |
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81 |
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82 |
| 1368 | 83 SharedArchive::SharedArchive(size_t maxSize) : |
| 84 maxSize_(maxSize) | |
| 85 { | |
| 86 if (maxSize == 0) | |
| 87 { | |
| 88 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 | |
| 1367 | 93 SharedArchive::~SharedArchive() |
| 94 { | |
| 95 for (Archive::iterator it = archive_.begin(); | |
| 1386 | 96 it != archive_.end(); ++it) |
| 1367 | 97 { |
| 98 delete it->second; | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 | |
| 103 std::string SharedArchive::Add(IDynamicObject* obj) | |
| 104 { | |
| 105 boost::mutex::scoped_lock lock(mutex_); | |
| 106 | |
| 107 if (archive_.size() == maxSize_) | |
| 108 { | |
| 109 // The quota has been reached, remove the oldest element | |
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110 RemoveInternal(lru_.GetOldest()); |
| 1367 | 111 } |
| 112 | |
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113 std::string id = Toolbox::GenerateUuid(); |
| 1367 | 114 RemoveInternal(id); // Should never be useful because of UUID |
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115 |
| 1367 | 116 archive_[id] = obj; |
| 117 lru_.Add(id); | |
| 118 | |
| 119 return id; | |
| 120 } | |
| 121 | |
| 122 | |
| 123 void SharedArchive::Remove(const std::string& id) | |
| 124 { | |
| 125 boost::mutex::scoped_lock lock(mutex_); | |
| 126 RemoveInternal(id); | |
| 127 } | |
| 128 | |
| 129 | |
| 130 void SharedArchive::List(std::list<std::string>& items) | |
| 131 { | |
| 132 items.clear(); | |
| 133 | |
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134 { |
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135 boost::mutex::scoped_lock lock(mutex_); |
| 1367 | 136 |
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137 for (Archive::const_iterator it = archive_.begin(); |
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138 it != archive_.end(); ++it) |
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139 { |
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140 items.push_back(it->first); |
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141 } |
| 1367 | 142 } |
| 143 } | |
| 144 } |