Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileStorage/FilesystemStorage.cpp @ 4551:350a22c094f2 db-changes
testing replay of transactions
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 02 Mar 2021 19:36:59 +0100 |
| parents | f5cb0c0ffbed |
| children | 7053502fbf97 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 1900 | 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) 2017-2021 Osimis S.A., Belgium |
| 0 | 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. |
| 136 | 11 * |
| 0 | 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. |
| 0 | 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/>. |
| 0 | 20 **/ |
| 21 | |
| 22 | |
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23 #include "../PrecompiledHeaders.h" |
| 1123 | 24 #include "FilesystemStorage.h" |
| 0 | 25 |
| 26 // http://stackoverflow.com/questions/1576272/storing-large-number-of-files-in-file-system | |
| 27 // http://stackoverflow.com/questions/446358/storing-a-large-number-of-images | |
| 28 | |
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29 #include "../Logging.h" |
| 234 | 30 #include "../OrthancException.h" |
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31 #include "../StringMemoryBuffer.h" |
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32 #include "../SystemToolbox.h" |
| 234 | 33 #include "../Toolbox.h" |
| 0 | 34 |
| 35 #include <boost/filesystem/fstream.hpp> | |
| 1397 | 36 |
| 0 | 37 |
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38 static std::string ToString(const boost::filesystem::path& p) |
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39 { |
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40 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
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41 return p.filename().string(); |
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42 #else |
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43 return p.filename(); |
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44 #endif |
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45 } |
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46 |
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47 |
| 59 | 48 namespace Orthanc |
| 0 | 49 { |
| 1123 | 50 boost::filesystem::path FilesystemStorage::GetPath(const std::string& uuid) const |
| 0 | 51 { |
| 52 namespace fs = boost::filesystem; | |
| 53 | |
| 54 if (!Toolbox::IsUuid(uuid)) | |
| 55 { | |
| 59 | 56 throw OrthancException(ErrorCode_ParameterOutOfRange); |
| 0 | 57 } |
| 58 | |
| 59 fs::path path = root_; | |
| 60 | |
| 61 path /= std::string(&uuid[0], &uuid[2]); | |
| 62 path /= std::string(&uuid[2], &uuid[4]); | |
| 63 path /= uuid; | |
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64 |
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65 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
| 0 | 66 path.make_preferred(); |
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67 #endif |
| 0 | 68 |
| 69 return path; | |
| 70 } | |
| 71 | |
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72 void FilesystemStorage::Setup(const std::string& root) |
| 0 | 73 { |
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74 //root_ = boost::filesystem::absolute(root).string(); |
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75 root_ = root; |
| 0 | 76 |
| 2140 | 77 SystemToolbox::MakeDirectory(root); |
| 0 | 78 } |
| 79 | |
| 4300 | 80 FilesystemStorage::FilesystemStorage(const std::string &root) : |
| 81 fsyncOnWrite_(false) | |
| 82 { | |
| 83 Setup(root); | |
| 84 } | |
| 85 | |
| 86 FilesystemStorage::FilesystemStorage(const std::string &root, | |
| 87 bool fsyncOnWrite) : | |
| 88 fsyncOnWrite_(fsyncOnWrite) | |
| 89 { | |
| 90 Setup(root); | |
| 91 } | |
| 92 | |
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93 |
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94 |
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95 static const char* GetDescriptionInternal(FileContentType content) |
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96 { |
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97 // This function is for logging only (internal use), a more |
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98 // fully-featured version is available in ServerEnumerations.cpp |
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99 switch (content) |
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100 { |
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101 case FileContentType_Unknown: |
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102 return "Unknown"; |
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103 |
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104 case FileContentType_Dicom: |
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105 return "DICOM"; |
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106 |
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107 case FileContentType_DicomAsJson: |
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108 return "JSON summary of DICOM"; |
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109 |
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110 case FileContentType_DicomUntilPixelData: |
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111 return "DICOM until pixel data"; |
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112 |
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113 default: |
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114 return "User-defined"; |
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115 } |
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116 } |
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117 |
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118 |
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119 void FilesystemStorage::Create(const std::string& uuid, |
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120 const void* content, |
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121 size_t size, |
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122 FileContentType type) |
| 0 | 123 { |
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124 LOG(INFO) << "Creating attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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125 << "\" type (size: " << (size / (1024 * 1024) + 1) << "MB)"; |
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126 |
| 0 | 127 boost::filesystem::path path; |
| 128 | |
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129 path = GetPath(uuid); |
| 0 | 130 |
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131 if (boost::filesystem::exists(path)) |
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132 { |
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133 // Extremely unlikely case: This Uuid has already been created |
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134 // in the past. |
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135 throw OrthancException(ErrorCode_InternalError); |
| 0 | 136 } |
| 137 | |
| 138 if (boost::filesystem::exists(path.parent_path())) | |
| 139 { | |
| 140 if (!boost::filesystem::is_directory(path.parent_path())) | |
| 141 { | |
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142 throw OrthancException(ErrorCode_DirectoryOverFile); |
| 0 | 143 } |
| 144 } | |
| 145 else | |
| 146 { | |
| 147 if (!boost::filesystem::create_directories(path.parent_path())) | |
| 148 { | |
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149 throw OrthancException(ErrorCode_FileStorageCannotWrite); |
| 0 | 150 } |
| 151 } | |
| 152 | |
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153 SystemToolbox::WriteFile(content, size, path.string(), fsyncOnWrite_); |
| 0 | 154 } |
| 155 | |
| 156 | |
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157 IMemoryBuffer* FilesystemStorage::Read(const std::string& uuid, |
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158 FileContentType type) |
| 0 | 159 { |
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160 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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161 << "\" content type"; |
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162 |
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163 std::string content; |
| 2140 | 164 SystemToolbox::ReadFile(content, GetPath(uuid).string()); |
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165 |
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166 return StringMemoryBuffer::CreateFromSwap(content); |
| 0 | 167 } |
| 168 | |
| 169 | |
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170 IMemoryBuffer* FilesystemStorage::ReadRange(const std::string& uuid, |
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171 FileContentType type, |
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172 uint64_t start /* inclusive */, |
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173 uint64_t end /* exclusive */) |
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174 { |
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175 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" << GetDescriptionInternal(type) |
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176 << "\" content type (range from " << start << " to " << end << ")"; |
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177 |
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178 std::string content; |
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179 SystemToolbox::ReadFileRange( |
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180 content, GetPath(uuid).string(), start, end, true /* throw if overflow */); |
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181 |
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182 return StringMemoryBuffer::CreateFromSwap(content); |
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183 } |
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184 |
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185 |
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186 bool FilesystemStorage::HasReadRange() const |
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187 { |
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188 return true; |
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189 } |
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190 |
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191 |
| 1123 | 192 uintmax_t FilesystemStorage::GetSize(const std::string& uuid) const |
| 0 | 193 { |
| 194 boost::filesystem::path path = GetPath(uuid); | |
| 195 return boost::filesystem::file_size(path); | |
| 196 } | |
| 197 | |
| 198 | |
| 199 | |
| 1123 | 200 void FilesystemStorage::ListAllFiles(std::set<std::string>& result) const |
| 0 | 201 { |
| 202 namespace fs = boost::filesystem; | |
| 203 | |
| 204 result.clear(); | |
| 205 | |
| 206 if (fs::exists(root_) && fs::is_directory(root_)) | |
| 207 { | |
| 208 for (fs::recursive_directory_iterator current(root_), end; current != end ; ++current) | |
| 209 { | |
| 2140 | 210 if (SystemToolbox::IsRegularFile(current->path().string())) |
| 0 | 211 { |
| 212 try | |
| 213 { | |
| 214 fs::path d = current->path(); | |
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215 std::string uuid = ToString(d); |
| 0 | 216 if (Toolbox::IsUuid(uuid)) |
| 217 { | |
| 218 fs::path p0 = d.parent_path().parent_path().parent_path(); | |
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219 std::string p1 = ToString(d.parent_path().parent_path()); |
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220 std::string p2 = ToString(d.parent_path()); |
| 0 | 221 if (p1.length() == 2 && |
| 222 p2.length() == 2 && | |
| 223 p1 == uuid.substr(0, 2) && | |
| 224 p2 == uuid.substr(2, 2) && | |
| 225 p0 == root_) | |
| 226 { | |
| 227 result.insert(uuid); | |
| 228 } | |
| 229 } | |
| 230 } | |
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231 catch (fs::filesystem_error&) |
| 0 | 232 { |
| 233 } | |
| 234 } | |
| 235 } | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 | |
| 1123 | 240 void FilesystemStorage::Clear() |
| 0 | 241 { |
| 242 namespace fs = boost::filesystem; | |
| 243 typedef std::set<std::string> List; | |
| 244 | |
| 245 List result; | |
| 246 ListAllFiles(result); | |
| 247 | |
| 656 | 248 for (List::const_iterator it = result.begin(); it != result.end(); ++it) |
| 0 | 249 { |
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250 Remove(*it, FileContentType_Unknown /*ignored in this class*/); |
| 0 | 251 } |
| 252 } | |
| 253 | |
| 254 | |
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255 void FilesystemStorage::Remove(const std::string& uuid, |
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256 FileContentType type) |
| 0 | 257 { |
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258 LOG(INFO) << "Deleting attachment \"" << uuid << "\" of type " << static_cast<int>(type); |
| 1397 | 259 |
| 0 | 260 namespace fs = boost::filesystem; |
| 261 | |
| 262 fs::path p = GetPath(uuid); | |
| 147 | 263 |
| 264 try | |
| 265 { | |
| 266 fs::remove(p); | |
| 267 } | |
| 148 | 268 catch (...) |
| 147 | 269 { |
| 270 // Ignore the error | |
| 271 } | |
| 0 | 272 |
| 273 // Remove the two parent directories, ignoring the error code if | |
| 274 // these directories are not empty | |
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275 |
| 142 | 276 try |
| 277 { | |
| 147 | 278 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
| 279 boost::system::error_code err; | |
| 280 fs::remove(p.parent_path(), err); | |
| 281 fs::remove(p.parent_path().parent_path(), err); | |
| 282 #else | |
| 283 fs::remove(p.parent_path()); | |
| 284 fs::remove(p.parent_path().parent_path()); | |
| 285 #endif | |
| 142 | 286 } |
| 148 | 287 catch (...) |
| 142 | 288 { |
| 289 // Ignore the error | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 | |
| 1123 | 294 uintmax_t FilesystemStorage::GetCapacity() const |
| 0 | 295 { |
| 296 return boost::filesystem::space(root_).capacity; | |
| 297 } | |
| 298 | |
| 1123 | 299 uintmax_t FilesystemStorage::GetAvailableSpace() const |
| 0 | 300 { |
| 301 return boost::filesystem::space(root_).available; | |
| 302 } | |
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303 |
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304 |
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305 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1 |
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306 FilesystemStorage::FilesystemStorage(std::string root) : |
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307 fsyncOnWrite_(false) |
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308 { |
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309 Setup(root); |
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310 } |
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311 #endif |
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312 |
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313 |
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314 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1 |
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315 void FilesystemStorage::Read(std::string& content, |
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316 const std::string& uuid, |
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317 FileContentType type) |
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318 { |
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319 std::unique_ptr<IMemoryBuffer> buffer(Read(uuid, type)); |
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320 buffer->MoveToString(content); |
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321 } |
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322 #endif |
| 0 | 323 } |