Mercurial > hg > orthanc
annotate OrthancFramework/Sources/MultiThreading/RunnableWorkersPool.cpp @ 5091:d9c4d77dedf4 Orthanc-1.11.2
added INSTALL_COMMAND to external projects to fix OpenSUSE build
| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Mon, 03 Oct 2022 09:52:04 +0200 |
| parents | 43e613a7756b |
| children | 0ea402b4d901 |
| rev | line source |
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| 1679 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 1679 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 1679 | 7 * |
| 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. |
| 1679 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
| 1679 | 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/>. |
| 1679 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "../PrecompiledHeaders.h" | |
| 25 #include "RunnableWorkersPool.h" | |
| 26 | |
| 27 #include "SharedMessageQueue.h" | |
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28 #include "../Compatibility.h" |
| 1679 | 29 #include "../OrthancException.h" |
| 30 #include "../Logging.h" | |
| 31 | |
| 32 namespace Orthanc | |
| 33 { | |
| 34 struct RunnableWorkersPool::PImpl | |
| 35 { | |
| 36 class Worker | |
| 37 { | |
| 38 private: | |
| 39 const bool& continue_; | |
| 40 SharedMessageQueue& queue_; | |
| 41 boost::thread thread_; | |
| 42 | |
| 43 static void WorkerThread(Worker* that) | |
| 44 { | |
| 45 while (that->continue_) | |
| 46 { | |
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47 try |
| 1679 | 48 { |
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49 std::unique_ptr<IDynamicObject> obj(that->queue_.Dequeue(100)); |
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50 if (obj.get() != NULL) |
| 1679 | 51 { |
| 52 IRunnableBySteps& runnable = *dynamic_cast<IRunnableBySteps*>(obj.get()); | |
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53 |
| 1679 | 54 bool wishToContinue = runnable.Step(); |
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55 |
| 1679 | 56 if (wishToContinue) |
| 57 { | |
| 58 // The runnable wishes to continue, reinsert it at the beginning of the queue | |
| 59 that->queue_.Enqueue(obj.release()); | |
| 60 } | |
| 61 } | |
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62 } |
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63 catch (OrthancException& e) |
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64 { |
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65 LOG(ERROR) << "Exception while handling some runnable object: " << e.What(); |
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66 } |
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67 catch (std::bad_alloc&) |
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68 { |
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69 LOG(ERROR) << "Not enough memory to handle some runnable object"; |
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70 } |
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71 catch (std::exception& e) |
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72 { |
| 2291 | 73 LOG(ERROR) << "std::exception while handling some runnable object: " << e.what(); |
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74 } |
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75 catch (...) |
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76 { |
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77 LOG(ERROR) << "Native exception while handling some runnable object"; |
| 1679 | 78 } |
| 79 } | |
| 80 } | |
| 81 | |
| 82 public: | |
| 83 Worker(const bool& globalContinue, | |
| 84 SharedMessageQueue& queue) : | |
| 85 continue_(globalContinue), | |
| 86 queue_(queue) | |
| 87 { | |
| 88 thread_ = boost::thread(WorkerThread, this); | |
| 89 } | |
| 90 | |
| 91 void Join() | |
| 92 { | |
| 93 if (thread_.joinable()) | |
| 94 { | |
| 95 thread_.join(); | |
| 96 } | |
| 97 } | |
| 98 }; | |
| 99 | |
| 100 | |
| 101 bool continue_; | |
| 102 std::vector<Worker*> workers_; | |
| 103 SharedMessageQueue queue_; | |
| 104 }; | |
| 105 | |
| 106 | |
| 107 | |
| 108 RunnableWorkersPool::RunnableWorkersPool(size_t countWorkers) : pimpl_(new PImpl) | |
| 109 { | |
| 110 pimpl_->continue_ = true; | |
| 111 | |
| 1847 | 112 if (countWorkers == 0) |
| 1679 | 113 { |
| 114 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 115 } | |
| 116 | |
| 117 pimpl_->workers_.resize(countWorkers); | |
| 118 | |
| 119 for (size_t i = 0; i < countWorkers; i++) | |
| 120 { | |
| 121 pimpl_->workers_[i] = new PImpl::Worker(pimpl_->continue_, pimpl_->queue_); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 | |
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126 void RunnableWorkersPool::Stop() |
| 1679 | 127 { |
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128 if (pimpl_->continue_) |
| 1679 | 129 { |
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130 pimpl_->continue_ = false; |
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131 |
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132 for (size_t i = 0; i < pimpl_->workers_.size(); i++) |
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133 { |
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134 PImpl::Worker* worker = pimpl_->workers_[i]; |
| 1679 | 135 |
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136 if (worker != NULL) |
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137 { |
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138 worker->Join(); |
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139 delete worker; |
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140 } |
| 1679 | 141 } |
| 142 } | |
| 143 } | |
| 144 | |
| 145 | |
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146 RunnableWorkersPool::~RunnableWorkersPool() |
| 1679 | 147 { |
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148 Stop(); |
| 1679 | 149 } |
| 150 | |
| 151 | |
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152 void RunnableWorkersPool::Add(IRunnableBySteps* runnable) |
| 1679 | 153 { |
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154 if (!pimpl_->continue_) |
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155 { |
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156 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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157 } |
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158 |
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159 pimpl_->queue_.Enqueue(runnable); |
| 1679 | 160 } |
| 161 } |