Mercurial > hg > orthanc-databases
annotate Framework/Plugins/IndexConnectionsPool.cpp @ 518:e3102bad13a4
fix SDK 1.12.4 protobuf
author | Alain Mazy <am@orthanc.team> |
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date | Thu, 06 Jun 2024 12:38:28 +0200 |
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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) 2017-2023 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 |
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8 * |
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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 Affero 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. |
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13 * |
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14 * This program is distributed in the hope that it will be useful, but |
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 * Affero General Public License for more details. |
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18 * |
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19 * You should have received a copy of the GNU Affero General Public License |
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20 * along with this program. If not, see <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 "IndexConnectionsPool.h" |
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25 |
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26 namespace OrthancDatabases |
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27 { |
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28 class IndexConnectionsPool::ManagerReference : public Orthanc::IDynamicObject |
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29 { |
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30 private: |
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31 DatabaseManager* manager_; |
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32 |
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33 public: |
405 | 34 explicit ManagerReference(DatabaseManager& manager) : |
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35 manager_(&manager) |
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36 { |
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37 } |
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38 |
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39 DatabaseManager& GetManager() |
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40 { |
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41 assert(manager_ != NULL); |
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42 return *manager_; |
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43 } |
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44 }; |
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45 |
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46 |
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47 IndexConnectionsPool::IndexConnectionsPool(IndexBackend* backend, |
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48 size_t countConnections) : |
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49 backend_(backend), |
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50 countConnections_(countConnections) |
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51 { |
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52 if (countConnections == 0) |
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53 { |
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54 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange, |
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55 "There must be a non-zero number of connections to the database"); |
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56 } |
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57 else if (backend == NULL) |
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58 { |
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59 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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60 } |
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61 else |
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62 { |
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63 context_ = backend_->GetContext(); |
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64 } |
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65 } |
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66 |
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67 |
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68 IndexConnectionsPool::~IndexConnectionsPool() |
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69 { |
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70 for (std::list<DatabaseManager*>::iterator |
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71 it = connections_.begin(); it != connections_.end(); ++it) |
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72 { |
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73 assert(*it != NULL); |
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74 delete *it; |
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75 } |
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76 } |
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77 |
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78 |
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79 void IndexConnectionsPool::OpenConnections(bool hasIdentifierTags, |
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80 const std::list<IdentifierTag>& identifierTags) |
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81 { |
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82 boost::unique_lock<boost::shared_mutex> lock(connectionsMutex_); |
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83 |
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84 if (connections_.size() == 0) |
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85 { |
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86 assert(backend_.get() != NULL); |
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87 |
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88 { |
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89 std::unique_ptr<DatabaseManager> manager(new DatabaseManager(backend_->CreateDatabaseFactory())); |
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90 manager->GetDatabase(); // Make sure to open the database connection |
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91 |
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92 backend_->ConfigureDatabase(*manager, hasIdentifierTags, identifierTags); |
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93 connections_.push_back(manager.release()); |
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94 } |
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95 |
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96 for (size_t i = 1; i < countConnections_; i++) |
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97 { |
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98 connections_.push_back(new DatabaseManager(backend_->CreateDatabaseFactory())); |
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99 connections_.back()->GetDatabase(); // Make sure to open the database connection |
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100 } |
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101 |
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102 for (std::list<DatabaseManager*>::iterator |
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103 it = connections_.begin(); it != connections_.end(); ++it) |
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104 { |
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105 assert(*it != NULL); |
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106 availableConnections_.Enqueue(new ManagerReference(**it)); |
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107 } |
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108 } |
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109 else |
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110 { |
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111 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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112 } |
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113 } |
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114 |
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115 |
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116 void IndexConnectionsPool::CloseConnections() |
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117 { |
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118 boost::unique_lock<boost::shared_mutex> lock(connectionsMutex_); |
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119 |
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120 if (connections_.size() != countConnections_) |
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121 { |
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122 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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123 } |
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124 else if (availableConnections_.GetSize() != countConnections_) |
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125 { |
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126 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database, "Some connections are still in use, bug in the Orthanc core"); |
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127 } |
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128 else |
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129 { |
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130 for (std::list<DatabaseManager*>::iterator |
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131 it = connections_.begin(); it != connections_.end(); ++it) |
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132 { |
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133 assert(*it != NULL); |
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134 (*it)->Close(); |
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135 } |
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136 } |
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137 } |
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138 |
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139 |
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140 IndexConnectionsPool::Accessor::Accessor(IndexConnectionsPool& pool) : |
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141 lock_(pool.connectionsMutex_), |
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142 pool_(pool), |
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143 manager_(NULL) |
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144 { |
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145 for (;;) |
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146 { |
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147 std::unique_ptr<Orthanc::IDynamicObject> manager(pool.availableConnections_.Dequeue(100)); |
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148 if (manager.get() != NULL) |
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149 { |
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150 manager_ = &dynamic_cast<ManagerReference&>(*manager).GetManager(); |
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151 return; |
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152 } |
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153 } |
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154 } |
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155 |
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156 |
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157 IndexConnectionsPool::Accessor::~Accessor() |
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158 { |
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159 assert(manager_ != NULL); |
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160 pool_.availableConnections_.Enqueue(new ManagerReference(*manager_)); |
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161 } |
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162 |
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163 |
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164 IndexBackend& IndexConnectionsPool::Accessor::GetBackend() const |
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165 { |
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166 return *pool_.backend_; |
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167 } |
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168 |
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169 |
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170 DatabaseManager& IndexConnectionsPool::Accessor::GetManager() const |
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171 { |
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172 assert(manager_ != NULL); |
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173 return *manager_; |
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174 } |
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175 } |