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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 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 #include "ArrayFilledByThreads.h"
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34
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3
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35 #include "ThreadedCommandProcessor.h"
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36 #include "../Orthanc/Core/OrthancException.h"
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1
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37
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6
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38 namespace OrthancClient
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1
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39 {
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6
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40 class ArrayFilledByThreads::Command : public Orthanc::ICommand
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1
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41 {
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42 private:
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43 ArrayFilledByThreads& that_;
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44 size_t index_;
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45
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46 public:
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47 Command(ArrayFilledByThreads& that,
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48 size_t index) :
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49 that_(that),
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50 index_(index)
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51 {
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52 }
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53
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54 virtual bool Execute()
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55 {
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56 std::auto_ptr<IDynamicObject> obj(that_.filler_.GetFillerItem(index_));
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57 if (obj.get() == NULL)
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58 {
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59 return false;
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60 }
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61 else
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62 {
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63 boost::mutex::scoped_lock lock(that_.mutex_);
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64 that_.array_[index_] = obj.release();
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65 return true;
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66 }
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67 }
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68 };
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69
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70 void ArrayFilledByThreads::Clear()
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71 {
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72 for (size_t i = 0; i < array_.size(); i++)
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73 {
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74 if (array_[i])
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75 delete array_[i];
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76 }
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77
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78 array_.clear();
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79 filled_ = false;
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80 }
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81
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82 void ArrayFilledByThreads::Update()
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83 {
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84 if (!filled_)
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85 {
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86 array_.resize(filler_.GetFillerSize());
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87
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6
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88 ThreadedCommandProcessor processor(threadCount_);
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1
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89 for (size_t i = 0; i < array_.size(); i++)
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90 {
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91 processor.Post(new Command(*this, i));
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92 }
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93
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94 processor.Join();
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95 filled_ = true;
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96 }
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97 }
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98
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99
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100 ArrayFilledByThreads::ArrayFilledByThreads(IFiller& filler) : filler_(filler)
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101 {
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102 filled_ = false;
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103 threadCount_ = 4;
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104 }
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105
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106
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107 ArrayFilledByThreads::~ArrayFilledByThreads()
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108 {
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109 Clear();
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110 }
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111
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112
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113 void ArrayFilledByThreads::Reload()
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114 {
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115 Clear();
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116 Update();
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117 }
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118
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119
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120 void ArrayFilledByThreads::Invalidate()
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121 {
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122 Clear();
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123 }
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124
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125
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126 void ArrayFilledByThreads::SetThreadCount(unsigned int t)
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127 {
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128 if (t < 1)
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129 {
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6
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130 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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1
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131 }
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132
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133 threadCount_ = t;
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134 }
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135
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136
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137 size_t ArrayFilledByThreads::GetSize()
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138 {
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139 Update();
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140 return array_.size();
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141 }
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142
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143
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6
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144 Orthanc::IDynamicObject& ArrayFilledByThreads::GetItem(size_t index)
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1
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145 {
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146 if (index >= GetSize())
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147 {
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148 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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149 }
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150
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151 return *array_[index];
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152 }
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153 }
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