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annotate Framework/Loaders/GenericLoadersContext.cpp @ 1228:c471a0aa137b broker

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adding the next generation of loaders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 09 Dec 2019 13:58:37 +0100
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children b9b5d4378874
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1228
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1 /**
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2 * Stone of Orthanc
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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) 2017-2019 Osimis S.A., Belgium
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6 *
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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 Affero 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.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "GenericLoadersContext.h"
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23
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24 namespace OrthancStone
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25 {
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26 class GenericLoadersContext::Locker : public ILoadersContext::ILock
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27 {
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28 private:
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29 GenericLoadersContext& that_;
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30 boost::recursive_mutex::scoped_lock lock_;
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31
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32 public:
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33 Locker(GenericLoadersContext& that) :
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34 that_(that),
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35 lock_(that.mutex_)
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36 {
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37 }
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38
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39 virtual ILoadersContext& GetContext() const ORTHANC_OVERRIDE
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40 {
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41 return that_;
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42 };
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43
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44 virtual void AddLoader(boost::shared_ptr<IObserver> loader) ORTHANC_OVERRIDE
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45 {
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46 that_.loaders_.push_back(loader);
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47 }
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48
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49 virtual IObservable& GetOracleObservable() const ORTHANC_OVERRIDE
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50 {
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51 return that_.oracleObservable_;
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52 }
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53
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54 virtual void Schedule(boost::shared_ptr<IObserver> receiver,
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55 int priority,
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56 IOracleCommand* command /* Takes ownership */) ORTHANC_OVERRIDE
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57 {
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58 that_.scheduler_->Schedule(receiver, priority, command);
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59 };
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60
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61 virtual void CancelRequests(boost::shared_ptr<IObserver> receiver) ORTHANC_OVERRIDE
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62 {
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63 that_.scheduler_->CancelRequests(receiver);
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64 }
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65
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66 virtual void CancelAllRequests() ORTHANC_OVERRIDE
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67 {
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68 that_.scheduler_->CancelAllRequests();
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69 }
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70 };
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71
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72
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73 void GenericLoadersContext::EmitMessage(boost::weak_ptr<IObserver> observer,
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74 const IMessage& message)
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75 {
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76 boost::recursive_mutex::scoped_lock lock(mutex_);
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77 //LOG(INFO) << " inside emit lock: " << message.GetIdentifier().AsString();
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78 oracleObservable_.EmitMessage(observer, message);
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79 //LOG(INFO) << " outside emit lock";
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80 }
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81
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82
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83 GenericLoadersContext::GenericLoadersContext(unsigned int maxHighPriority,
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84 unsigned int maxStandardPriority,
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85 unsigned int maxLowPriority)
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86 {
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87 oracle_.reset(new ThreadedOracle(*this));
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88 scheduler_ = OracleScheduler::Create(*oracle_, oracleObservable_, *this,
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89 maxHighPriority, maxStandardPriority, maxLowPriority);
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90 }
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91
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92
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93 GenericLoadersContext::~GenericLoadersContext()
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94 {
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95 LOG(WARNING) << "scheduled commands: " << scheduler_->GetTotalScheduled()
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96 << ", processed commands: " << scheduler_->GetTotalProcessed();
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97 scheduler_.reset();
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98 //LOG(INFO) << "counter: " << scheduler_.use_count();
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99 }
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100
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101
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102 void GenericLoadersContext::SetOrthancParameters(const Orthanc::WebServiceParameters& parameters)
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103 {
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104 boost::recursive_mutex::scoped_lock lock(mutex_);
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105 oracle_->SetOrthancParameters(parameters);
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106 }
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107
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108
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109 void GenericLoadersContext::SetRootDirectory(const std::string& root)
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110 {
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111 boost::recursive_mutex::scoped_lock lock(mutex_);
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112 oracle_->SetRootDirectory(root);
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113 }
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114
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115
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116 void GenericLoadersContext::SetDicomCacheSize(size_t size)
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117 {
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118 boost::recursive_mutex::scoped_lock lock(mutex_);
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119 oracle_->SetDicomCacheSize(size);
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120 }
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121
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122
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123 void GenericLoadersContext::StartOracle()
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124 {
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125 boost::recursive_mutex::scoped_lock lock(mutex_);
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126 oracle_->Start();
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127 //LOG(INFO) << "STARTED ORACLE";
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128 }
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129
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130
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131 void GenericLoadersContext::StopOracle()
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132 {
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133 /**
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134 * DON'T lock "mutex_" here, otherwise Stone won't be able to
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135 * stop if one command being executed by the oracle has to emit
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136 * a message (method "EmitMessage()" would have to lock the
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137 * mutex too).
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138 **/
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139
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140 //LOG(INFO) << "STOPPING ORACLE";
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141 oracle_->Stop();
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142 //LOG(INFO) << "STOPPED ORACLE";
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143 }
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144
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145
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146 void GenericLoadersContext::WaitUntilComplete()
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147 {
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148 for (;;)
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149 {
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150 {
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151 boost::recursive_mutex::scoped_lock lock(mutex_);
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152 if (scheduler_ &&
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153 scheduler_->GetTotalScheduled() == scheduler_->GetTotalProcessed())
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154 {
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155 return;
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156 }
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157 }
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158
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159 boost::this_thread::sleep(boost::posix_time::milliseconds(100));
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160 }
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161 }
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162
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163
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164 ILoadersContext::ILock* GenericLoadersContext::Lock()
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165 {
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166 return new Locker(*this);
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167 }
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168
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169
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170 void GenericLoadersContext::GetStatistics(uint64_t& scheduledCommands,
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171 uint64_t& processedCommands)
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172 {
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173 boost::recursive_mutex::scoped_lock lock(mutex_);
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174 if (scheduler_)
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175 {
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176 scheduledCommands = scheduler_->GetTotalScheduled();
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177 processedCommands = scheduler_->GetTotalProcessed();
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178 }
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179 else
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180 {
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181 scheduledCommands = 0;
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182 processedCommands = 0;
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183 }
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184 }
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185 }