Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Cache/SharedArchive.cpp @ 4437:d9473bd5ed43
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 06 Jan 2021 17:27:28 +0100 |
| parents | b30a8de92ad9 |
| children | 7053502fbf97 |
| 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 |
| 1367 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
| 1367 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
| 1367 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 1367 | 20 **/ |
| 21 | |
| 22 | |
| 23 #include "../PrecompiledHeaders.h" | |
| 24 #include "SharedArchive.h" | |
| 25 | |
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26 #include "../Toolbox.h" |
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27 |
| 1367 | 28 |
| 29 namespace Orthanc | |
| 30 { | |
| 31 void SharedArchive::RemoveInternal(const std::string& id) | |
| 32 { | |
| 33 Archive::iterator it = archive_.find(id); | |
| 34 | |
| 35 if (it != archive_.end()) | |
| 36 { | |
| 37 delete it->second; | |
| 38 archive_.erase(it); | |
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39 |
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40 lru_.Invalidate(id); |
| 1367 | 41 } |
| 42 } | |
| 43 | |
| 44 | |
| 45 SharedArchive::Accessor::Accessor(SharedArchive& that, | |
| 46 const std::string& id) : | |
| 47 lock_(that.mutex_) | |
| 48 { | |
| 49 Archive::iterator it = that.archive_.find(id); | |
| 50 | |
| 51 if (it == that.archive_.end()) | |
| 52 { | |
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53 item_ = NULL; |
| 1367 | 54 } |
| 55 else | |
| 56 { | |
| 57 that.lru_.MakeMostRecent(id); | |
| 58 item_ = it->second; | |
| 59 } | |
| 60 } | |
| 61 | |
| 4300 | 62 bool SharedArchive::Accessor::IsValid() const |
| 63 { | |
| 64 return item_ != NULL; | |
| 65 } | |
| 66 | |
| 1367 | 67 |
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68 IDynamicObject& SharedArchive::Accessor::GetItem() const |
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69 { |
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70 if (item_ == NULL) |
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71 { |
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72 // "IsValid()" should have been called |
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73 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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74 } |
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75 else |
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76 { |
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77 return *item_; |
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78 } |
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79 } |
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80 |
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81 |
| 1368 | 82 SharedArchive::SharedArchive(size_t maxSize) : |
| 83 maxSize_(maxSize) | |
| 84 { | |
| 85 if (maxSize == 0) | |
| 86 { | |
| 87 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 | |
| 1367 | 92 SharedArchive::~SharedArchive() |
| 93 { | |
| 94 for (Archive::iterator it = archive_.begin(); | |
| 1386 | 95 it != archive_.end(); ++it) |
| 1367 | 96 { |
| 97 delete it->second; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 | |
| 102 std::string SharedArchive::Add(IDynamicObject* obj) | |
| 103 { | |
| 104 boost::mutex::scoped_lock lock(mutex_); | |
| 105 | |
| 106 if (archive_.size() == maxSize_) | |
| 107 { | |
| 108 // The quota has been reached, remove the oldest element | |
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109 RemoveInternal(lru_.GetOldest()); |
| 1367 | 110 } |
| 111 | |
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112 std::string id = Toolbox::GenerateUuid(); |
| 1367 | 113 RemoveInternal(id); // Should never be useful because of UUID |
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114 |
| 1367 | 115 archive_[id] = obj; |
| 116 lru_.Add(id); | |
| 117 | |
| 118 return id; | |
| 119 } | |
| 120 | |
| 121 | |
| 122 void SharedArchive::Remove(const std::string& id) | |
| 123 { | |
| 124 boost::mutex::scoped_lock lock(mutex_); | |
| 125 RemoveInternal(id); | |
| 126 } | |
| 127 | |
| 128 | |
| 129 void SharedArchive::List(std::list<std::string>& items) | |
| 130 { | |
| 131 items.clear(); | |
| 132 | |
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133 { |
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134 boost::mutex::scoped_lock lock(mutex_); |
| 1367 | 135 |
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136 for (Archive::const_iterator it = archive_.begin(); |
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137 it != archive_.end(); ++it) |
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138 { |
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139 items.push_back(it->first); |
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140 } |
| 1367 | 141 } |
| 142 } | |
| 143 } |