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annotate OrthancFramework/Sources/JobsEngine/JobsEngine.h @ 4119:bf7b9edf6b81 framework-lgpl

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re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 19:17:56 +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) 2017-2020 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 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.
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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 * Lesser 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 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/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "JobsRegistry.h"
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26
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27 #include "../Compatibility.h"
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28
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29 #include <boost/thread.hpp>
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30
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31 namespace Orthanc
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32 {
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33 class ORTHANC_PUBLIC JobsEngine : public boost::noncopyable
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34 {
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35 private:
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36 enum State
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37 {
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38 State_Setup,
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39 State_Running,
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40 State_Stopping,
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41 State_Done
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42 };
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43
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44 boost::mutex stateMutex_;
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45 State state_;
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46 std::unique_ptr<JobsRegistry> registry_;
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47 boost::thread retryHandler_;
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48 unsigned int threadSleep_;
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49 std::vector<boost::thread*> workers_;
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50
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51 bool IsRunning();
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52
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53 bool ExecuteStep(JobsRegistry::RunningJob& running,
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54 size_t workerIndex);
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55
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56 static void RetryHandler(JobsEngine* engine);
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57
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58 static void Worker(JobsEngine* engine,
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59 size_t workerIndex);
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60
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61 public:
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62 JobsEngine(size_t maxCompletedJobs);
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63
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64 ~JobsEngine();
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65
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66 JobsRegistry& GetRegistry();
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67
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68 void LoadRegistryFromJson(IJobUnserializer& unserializer,
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69 const Json::Value& serialized);
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70
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71 void LoadRegistryFromString(IJobUnserializer& unserializer,
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72 const std::string& serialized);
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73
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74 void SetWorkersCount(size_t count);
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76 void SetThreadSleep(unsigned int sleep);
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77
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78 void Start();
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79
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80 void Stop();
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81 };
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82 }