Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileStorage/MemoryStorageArea.cpp @ 5853:4d932683049d get-scu tip
very first implementation of C-Get SCU
| author | Alain Mazy <am@orthanc.team> |
|---|---|
| date | Tue, 29 Oct 2024 17:25:49 +0100 |
| parents | f7adfb22e20e |
| children |
| rev | line source |
|---|---|
| 2653 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 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 |
| 2653 | 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. |
| 2653 | 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. |
| 2653 | 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/>. |
| 2653 | 22 **/ |
| 23 | |
| 24 | |
| 25 #include "../PrecompiledHeaders.h" | |
| 26 #include "MemoryStorageArea.h" | |
| 27 | |
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28 #include "../Logging.h" |
| 2653 | 29 #include "../OrthancException.h" |
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30 #include "../StringMemoryBuffer.h" |
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31 #include "../Toolbox.h" |
| 2653 | 32 |
| 33 namespace Orthanc | |
| 34 { | |
| 35 MemoryStorageArea::~MemoryStorageArea() | |
| 36 { | |
| 37 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
| 38 { | |
| 39 if (it->second != NULL) | |
| 40 { | |
| 41 delete it->second; | |
| 42 } | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 void MemoryStorageArea::Create(const std::string& uuid, | |
| 47 const void* content, | |
| 48 size_t size, | |
| 49 FileContentType type) | |
| 50 { | |
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51 LOG(INFO) << "Creating attachment \"" << uuid << "\" of \"" << static_cast<int>(type) |
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52 << "\" type (size: " << Toolbox::GetHumanFileSize(size) << ")"; |
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53 |
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54 Mutex::ScopedLock lock(mutex_); |
| 2653 | 55 |
| 56 if (size != 0 && | |
| 57 content == NULL) | |
| 58 { | |
| 59 throw OrthancException(ErrorCode_NullPointer); | |
| 60 } | |
| 61 else if (content_.find(uuid) != content_.end()) | |
| 62 { | |
| 63 throw OrthancException(ErrorCode_InternalError); | |
| 64 } | |
| 65 else | |
| 66 { | |
| 67 content_[uuid] = new std::string(reinterpret_cast<const char*>(content), size); | |
| 68 } | |
| 69 } | |
| 70 | |
| 71 | |
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72 IMemoryBuffer* MemoryStorageArea::Read(const std::string& uuid, |
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73 FileContentType type) |
| 2653 | 74 { |
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75 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" |
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76 << static_cast<int>(type) << "\" content type"; |
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77 |
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78 Mutex::ScopedLock lock(mutex_); |
| 2653 | 79 |
| 80 Content::const_iterator found = content_.find(uuid); | |
| 81 | |
| 82 if (found == content_.end()) | |
| 83 { | |
| 84 throw OrthancException(ErrorCode_InexistentFile); | |
| 85 } | |
| 86 else if (found->second == NULL) | |
| 87 { | |
| 88 throw OrthancException(ErrorCode_InternalError); | |
| 89 } | |
| 90 else | |
| 91 { | |
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92 return StringMemoryBuffer::CreateFromCopy(*found->second); |
| 2653 | 93 } |
| 94 } | |
| 95 | |
| 96 | |
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97 IMemoryBuffer* MemoryStorageArea::ReadRange(const std::string& uuid, |
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98 FileContentType type, |
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99 uint64_t start /* inclusive */, |
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100 uint64_t end /* exclusive */) |
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101 { |
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102 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" |
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103 << static_cast<int>(type) << "\" content type " |
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104 << "(range from " << start << " to " << end << ")"; |
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105 |
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106 if (start > end) |
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107 { |
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108 throw OrthancException(ErrorCode_BadRange); |
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109 } |
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110 else if (start == end) |
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111 { |
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112 return new StringMemoryBuffer; |
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113 } |
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114 else |
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115 { |
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116 Mutex::ScopedLock lock(mutex_); |
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117 |
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118 Content::const_iterator found = content_.find(uuid); |
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119 |
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120 if (found == content_.end()) |
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121 { |
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122 throw OrthancException(ErrorCode_InexistentFile); |
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123 } |
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124 else if (found->second == NULL) |
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125 { |
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126 throw OrthancException(ErrorCode_InternalError); |
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127 } |
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128 else if (end > found->second->size()) |
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129 { |
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130 throw OrthancException(ErrorCode_BadRange); |
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131 } |
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132 else |
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133 { |
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134 std::string range; |
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135 range.resize(end - start); |
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136 assert(!range.empty()); |
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137 |
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138 memcpy(&range[0], &found->second[start], range.size()); |
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139 |
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140 return StringMemoryBuffer::CreateFromSwap(range); |
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141 } |
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142 } |
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143 } |
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144 |
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145 |
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146 bool MemoryStorageArea::HasReadRange() const |
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147 { |
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148 return true; |
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149 } |
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150 |
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151 |
| 2653 | 152 void MemoryStorageArea::Remove(const std::string& uuid, |
| 153 FileContentType type) | |
| 154 { | |
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155 LOG(INFO) << "Deleting attachment \"" << uuid << "\" of type " << static_cast<int>(type); |
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156 |
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157 Mutex::ScopedLock lock(mutex_); |
| 2653 | 158 |
| 159 Content::iterator found = content_.find(uuid); | |
| 160 | |
| 161 if (found == content_.end()) | |
| 162 { | |
| 163 // Ignore second removal | |
| 164 } | |
| 165 else if (found->second == NULL) | |
| 166 { | |
| 167 throw OrthancException(ErrorCode_InternalError); | |
| 168 } | |
| 169 else | |
| 170 { | |
| 171 delete found->second; | |
| 172 content_.erase(found); | |
| 173 } | |
| 174 } | |
| 175 } |