annotate OrthancServer/Scheduler/ServerScheduler.h @ 2223:29689b30f9ae

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 13 Dec 2016 15:28:05 +0100
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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 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "ServerJob.h"
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36
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37 #include "../../Core/MultiThreading/Semaphore.h"
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38
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39 namespace Orthanc
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40 {
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41 class ServerScheduler : public ServerCommandInstance::IListener
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42 {
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43 private:
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44 struct JobInfo
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45 {
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46 bool watched_;
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47 bool cancel_;
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48 size_t size_;
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49 size_t success_;
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50 size_t failures_;
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51 std::string description_;
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52 };
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53
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54 enum JobStatus
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55 {
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56 JobStatus_Running = 1,
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57 JobStatus_Success = 2,
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58 JobStatus_Failure = 3
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59 };
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60
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61 typedef IServerCommand::ListOfStrings ListOfStrings;
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62 typedef std::map<std::string, JobInfo> Jobs;
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63
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64 boost::mutex mutex_;
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65 boost::condition_variable watchedJobFinished_;
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66 Jobs jobs_;
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67 SharedMessageQueue queue_;
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68 bool finish_;
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69 boost::thread worker_;
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70 std::map<std::string, JobStatus> watchedJobStatus_;
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71 Semaphore availableJob_;
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72
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73 JobInfo& GetJobInfo(const std::string& jobId);
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74
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75 virtual void SignalSuccess(const std::string& jobId);
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76
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77 virtual void SignalFailure(const std::string& jobId);
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78
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79 static void Worker(ServerScheduler* that);
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80
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81 void SubmitInternal(ServerJob& job,
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82 bool watched);
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83
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84 public:
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85 explicit ServerScheduler(unsigned int maxjobs);
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86
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87 ~ServerScheduler();
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88
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89 void Stop();
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90
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91 void Submit(ServerJob& job);
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92
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93 bool SubmitAndWait(ListOfStrings& outputs,
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94 ServerJob& job);
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95
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96 bool SubmitAndWait(ServerJob& job);
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97
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98 bool IsRunning(const std::string& jobId);
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99
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100 void Cancel(const std::string& jobId);
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101
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102 // Returns a number between 0 and 1
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103 float GetProgress(const std::string& jobId);
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104
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105 bool IsRunning(const ServerJob& job)
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106 {
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107 return IsRunning(job.GetId());
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108 }
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109
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110 void Cancel(const ServerJob& job)
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111 {
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112 Cancel(job.GetId());
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113 }
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114
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115 float GetProgress(const ServerJob& job)
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116 {
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117 return GetProgress(job.GetId());
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118 }
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119
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120 void GetListOfJobs(ListOfStrings& jobs);
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121 };
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122 }