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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) 2017-2019 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 #pragma once
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23
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24 #include "BagOfTasks.h"
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25
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26 #include <Core/MultiThreading/SharedMessageQueue.h>
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27
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28 #include <stdint.h>
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29 #include <map>
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30
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31 namespace Orthanc
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32 {
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33 class BagOfTasksProcessor : public boost::noncopyable
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34 {
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35 private:
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36 enum BagStatus
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37 {
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38 BagStatus_Running,
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39 BagStatus_Canceled,
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40 BagStatus_Failed
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41 };
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42
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43
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44 struct Bag
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45 {
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46 size_t size_;
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47 size_t done_;
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48 BagStatus status_;
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49
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50 Bag() :
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51 size_(0),
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52 done_(0),
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53 status_(BagStatus_Failed)
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54 {
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55 }
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56
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57 explicit Bag(size_t size) :
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58 size_(size),
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59 done_(0),
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60 status_(BagStatus_Running)
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61 {
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62 }
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63 };
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64
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65 class Task;
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66
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67
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68 typedef std::map<uint64_t, Bag> Bags;
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69 typedef std::map<uint64_t, bool> ExitStatus;
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70
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71 SharedMessageQueue queue_;
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72
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73 boost::mutex mutex_;
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74 uint64_t countBags_;
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75 Bags bags_;
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76 std::vector<boost::thread*> threads_;
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77 ExitStatus exitStatus_;
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78 bool continue_;
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79
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80 boost::condition_variable bagFinished_;
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81
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82 static void Worker(BagOfTasksProcessor* that);
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83
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84 void Cancel(int64_t bag);
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85
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86 bool Join(int64_t bag);
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87
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88 float GetProgress(int64_t bag);
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89
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90 void SignalProgress(Task& task,
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91 Bag& bag);
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92
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93 public:
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94 class Handle : public boost::noncopyable
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95 {
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96 friend class BagOfTasksProcessor;
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97
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98 private:
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99 BagOfTasksProcessor& that_;
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100 uint64_t bag_;
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101 bool hasJoined_;
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102 bool status_;
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103
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104 Handle(BagOfTasksProcessor& that,
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105 uint64_t bag,
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106 bool empty) :
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107 that_(that),
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108 bag_(bag),
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109 hasJoined_(empty)
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110 {
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111 }
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112
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113 public:
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114 ~Handle()
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115 {
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116 Join();
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117 }
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118
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119 void Cancel()
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120 {
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121 that_.Cancel(bag_);
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122 }
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123
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124 bool Join();
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125
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126 float GetProgress()
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127 {
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128 return that_.GetProgress(bag_);
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129 }
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130 };
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131
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132
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133 explicit BagOfTasksProcessor(size_t countThreads);
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134
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135 ~BagOfTasksProcessor();
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136
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137 Handle* Submit(BagOfTasks& tasks);
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138 };
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139 }
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