Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Cache/SharedArchive.cpp @ 5839:7aef730c0859 default tip
cont
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 16 Oct 2024 19:34:42 +0200 |
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rev | line source |
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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) 2017-2023 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 |
1367 | 8 * |
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. |
1367 | 13 * |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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17 * Lesser General Public License for more details. |
1367 | 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/>. |
1367 | 22 **/ |
23 | |
24 | |
25 #include "../PrecompiledHeaders.h" | |
26 #include "SharedArchive.h" | |
27 | |
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28 #include "../Toolbox.h" |
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29 |
1367 | 30 |
31 namespace Orthanc | |
32 { | |
33 void SharedArchive::RemoveInternal(const std::string& id) | |
34 { | |
35 Archive::iterator it = archive_.find(id); | |
36 | |
37 if (it != archive_.end()) | |
38 { | |
39 delete it->second; | |
40 archive_.erase(it); | |
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41 |
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42 lru_.Invalidate(id); |
1367 | 43 } |
44 } | |
45 | |
46 | |
47 SharedArchive::Accessor::Accessor(SharedArchive& that, | |
48 const std::string& id) : | |
49 lock_(that.mutex_) | |
50 { | |
51 Archive::iterator it = that.archive_.find(id); | |
52 | |
53 if (it == that.archive_.end()) | |
54 { | |
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55 item_ = NULL; |
1367 | 56 } |
57 else | |
58 { | |
59 that.lru_.MakeMostRecent(id); | |
60 item_ = it->second; | |
61 } | |
62 } | |
63 | |
4300 | 64 bool SharedArchive::Accessor::IsValid() const |
65 { | |
66 return item_ != NULL; | |
67 } | |
68 | |
1367 | 69 |
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70 IDynamicObject& SharedArchive::Accessor::GetItem() const |
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71 { |
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72 if (item_ == NULL) |
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73 { |
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74 // "IsValid()" should have been called |
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75 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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76 } |
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77 else |
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78 { |
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79 return *item_; |
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80 } |
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81 } |
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82 |
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83 |
1368 | 84 SharedArchive::SharedArchive(size_t maxSize) : |
85 maxSize_(maxSize) | |
86 { | |
87 if (maxSize == 0) | |
88 { | |
89 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
90 } | |
91 } | |
92 | |
93 | |
1367 | 94 SharedArchive::~SharedArchive() |
95 { | |
96 for (Archive::iterator it = archive_.begin(); | |
1386 | 97 it != archive_.end(); ++it) |
1367 | 98 { |
99 delete it->second; | |
100 } | |
101 } | |
102 | |
103 | |
104 std::string SharedArchive::Add(IDynamicObject* obj) | |
105 { | |
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106 boost::recursive_mutex::scoped_lock lock(mutex_); |
1367 | 107 |
108 if (archive_.size() == maxSize_) | |
109 { | |
110 // The quota has been reached, remove the oldest element | |
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111 RemoveInternal(lru_.GetOldest()); |
1367 | 112 } |
113 | |
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114 std::string id = Toolbox::GenerateUuid(); |
1367 | 115 RemoveInternal(id); // Should never be useful because of UUID |
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116 |
1367 | 117 archive_[id] = obj; |
118 lru_.Add(id); | |
119 | |
120 return id; | |
121 } | |
122 | |
123 | |
124 void SharedArchive::Remove(const std::string& id) | |
125 { | |
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126 boost::recursive_mutex::scoped_lock lock(mutex_); |
1367 | 127 RemoveInternal(id); |
128 } | |
129 | |
130 | |
131 void SharedArchive::List(std::list<std::string>& items) | |
132 { | |
133 items.clear(); | |
134 | |
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135 { |
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136 boost::recursive_mutex::scoped_lock lock(mutex_); |
1367 | 137 |
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138 for (Archive::const_iterator it = archive_.begin(); |
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139 it != archive_.end(); ++it) |
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140 { |
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141 items.push_back(it->first); |
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142 } |
1367 | 143 } |
144 } | |
145 } |