Mercurial > hg > orthanc

annotate OrthancFramework/Sources/FileStorage/StorageCache.cpp @ 5527:93dcc555b655 Orthanc-1.12.3

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Orthanc-1.12.3
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 31 Jan 2024 12:33:17 +0100
parents 48b8dae6dc77
children f7adfb22e20e
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2024 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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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.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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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/>.
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21 **/
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22
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23
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24 #include "../PrecompiledHeaders.h"
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25 #include "StorageCache.h"
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26
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27 #include "../Compatibility.h"
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28 #include "../Logging.h"
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29 #include "../OrthancException.h"
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30
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31 #include <boost/lexical_cast.hpp>
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33
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34 namespace Orthanc
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35 {
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36 static std::string GetCacheKeyFullFile(const std::string& uuid,
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37 FileContentType contentType)
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38 {
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39 return uuid + ":" + boost::lexical_cast<std::string>(contentType) + ":1";
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40 }
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41
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42
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43 static std::string GetCacheKeyStartRange(const std::string& uuid,
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44 FileContentType contentType)
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45 {
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46 return uuid + ":" + boost::lexical_cast<std::string>(contentType) + ":0";
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47 }
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48
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49
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50 static std::string GetCacheKeyTranscodedInstance(const std::string& uuid,
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51 DicomTransferSyntax transferSyntax)
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52 {
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53 return uuid + ":ts:" + GetTransferSyntaxUid(transferSyntax);
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54 }
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55
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56
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57 void StorageCache::SetMaximumSize(size_t size)
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58 {
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59 cache_.SetMaximumSize(size);
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60 }
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61
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62
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63 void StorageCache::Invalidate(const std::string& uuid,
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64 FileContentType contentType)
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65 {
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66 std::set<DicomTransferSyntax> transferSyntaxes;
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67
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68 {
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69 boost::mutex::scoped_lock lock(subKeysMutex_);
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70 transferSyntaxes = subKeysTransferSyntax_;
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71 }
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72
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73 // invalidate full file, start range file and possible transcoded instances
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74 const std::string keyFullFile = GetCacheKeyFullFile(uuid, contentType);
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75 cache_.Invalidate(keyFullFile);
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76
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77 const std::string keyPartialFile = GetCacheKeyStartRange(uuid, contentType);
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78 cache_.Invalidate(keyPartialFile);
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79
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80 for (std::set<DicomTransferSyntax>::const_iterator it = transferSyntaxes.begin(); it != transferSyntaxes.end(); ++it)
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81 {
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82 const std::string keyTransferSyntax = GetCacheKeyTranscodedInstance(uuid, *it);
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83 cache_.Invalidate(keyTransferSyntax);
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84 }
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85 }
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86
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87
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88 StorageCache::Accessor::Accessor(StorageCache& cache)
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89 : MemoryStringCache::Accessor(cache.cache_),
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90 storageCache_(cache)
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91 {
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92 }
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93
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94 void StorageCache::Accessor::Add(const std::string& uuid,
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95 FileContentType contentType,
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96 const std::string& value)
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97 {
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98
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99 std::string key = GetCacheKeyFullFile(uuid, contentType);
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100 MemoryStringCache::Accessor::Add(key, value);
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101 }
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102
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103 void StorageCache::Accessor::AddStartRange(const std::string& uuid,
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104 FileContentType contentType,
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105 const std::string& value)
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106 {
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107 const std::string key = GetCacheKeyStartRange(uuid, contentType);
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108 MemoryStringCache::Accessor::Add(key, value);
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109 }
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110
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111 void StorageCache::Accessor::Add(const std::string& uuid,
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112 FileContentType contentType,
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113 const void* buffer,
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114 size_t size)
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115 {
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116 const std::string key = GetCacheKeyFullFile(uuid, contentType);
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117 MemoryStringCache::Accessor::Add(key, reinterpret_cast<const char*>(buffer), size);
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118 }
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119
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120 bool StorageCache::Accessor::Fetch(std::string& value,
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121 const std::string& uuid,
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122 FileContentType contentType)
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123 {
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124 const std::string key = GetCacheKeyFullFile(uuid, contentType);
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125 if (MemoryStringCache::Accessor::Fetch(value, key))
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126 {
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127 LOG(INFO) << "Read attachment \"" << uuid << "\" with content type "
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128 << boost::lexical_cast<std::string>(contentType) << " from cache";
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129 return true;
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130 }
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131 else
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132 {
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133 return false;
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134 }
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135 }
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136
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137 bool StorageCache::Accessor::FetchTranscodedInstance(std::string& value,
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138 const std::string& uuid,
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139 DicomTransferSyntax targetSyntax)
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140 {
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141 const std::string key = GetCacheKeyTranscodedInstance(uuid, targetSyntax);
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142 if (MemoryStringCache::Accessor::Fetch(value, key))
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143 {
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144 LOG(INFO) << "Read instance \"" << uuid << "\" transcoded to "
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145 << GetTransferSyntaxUid(targetSyntax) << " from cache";
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146 return true;
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147 }
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148 else
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149 {
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150 return false;
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151 }
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152 }
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153
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154 void StorageCache::Accessor::AddTranscodedInstance(const std::string& uuid,
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155 DicomTransferSyntax targetSyntax,
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156 const void* buffer,
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157 size_t size)
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158 {
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159 {
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160 boost::mutex::scoped_lock lock(storageCache_.subKeysMutex_);
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161 storageCache_.subKeysTransferSyntax_.insert(targetSyntax);
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162 }
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163
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164 const std::string key = GetCacheKeyTranscodedInstance(uuid, targetSyntax);
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165 MemoryStringCache::Accessor::Add(key, reinterpret_cast<const char*>(buffer), size);
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166 }
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167
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Alain Mazy <am@osimis.io>
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168 bool StorageCache::Accessor::FetchStartRange(std::string& value,
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169 const std::string& uuid,
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170 FileContentType contentType,
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Alain Mazy <am@osimis.io>
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171 uint64_t end /* exclusive */)
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Alain Mazy <am@osimis.io>
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172 {
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173 const std::string keyPartialFile = GetCacheKeyStartRange(uuid, contentType);
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174 if (MemoryStringCache::Accessor::Fetch(value, keyPartialFile) && value.size() >= end)
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175 {
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176 if (value.size() > end) // the start range that has been cached is larger than the requested value
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177 {
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178 value.resize(end);
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179 }
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180
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181 LOG(INFO) << "Read start of attachment \"" << uuid << "\" with content type "
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182 << boost::lexical_cast<std::string>(contentType) << " from cache";
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183 return true;
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184 }
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185
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186 return false;
4906
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187 }
5431
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188
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Alain Mazy <am@osimis.io>
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189
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190 size_t StorageCache::GetCurrentSize() const
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191 {
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192 return cache_.GetCurrentSize();
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193 }
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194
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195 size_t StorageCache::GetNumberOfItems() const
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196 {
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197 return cache_.GetNumberOfItems();
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198 }
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diff changeset
199
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200 }