Mercurial > hg > orthanc
annotate Core/MetricsRegistry.h @ 3767:c6658187e4b1
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 17 Mar 2020 14:46:06 +0100 |
parents | 94f4a18a79cc |
children | f9863630ec7f |
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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 General Public License as |
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9 * published by the Free Software Foundation, either version 3 of the |
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10 * License, or (at your option) any later version. |
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11 * |
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12 * In addition, as a special exception, the copyright holders of this |
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13 * program give permission to link the code of its release with the |
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it |
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15 * that use the same license as the "OpenSSL" library), and distribute |
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16 * the linked executables. You must obey the GNU General Public License |
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17 * in all respects for all of the code used other than "OpenSSL". If you |
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18 * modify file(s) with this exception, you may extend this exception to |
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19 * your version of the file(s), but you are not obligated to do so. If |
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20 * you do not wish to do so, delete this exception statement from your |
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21 * version. If you delete this exception statement from all source files |
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22 * in the program, then also delete it here. |
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23 * |
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24 * This program is distributed in the hope that it will be useful, but |
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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27 * General Public License for more details. |
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28 * |
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29 * You should have received a copy of the GNU General Public License |
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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31 **/ |
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32 |
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33 |
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34 #pragma once |
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35 |
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36 #if !defined(ORTHANC_SANDBOXED) |
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37 # error The macro ORTHANC_SANDBOXED must be defined |
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38 #endif |
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39 |
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40 #if ORTHANC_SANDBOXED == 1 |
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41 # error The class MetricsRegistry cannot be used in sandboxed environments |
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42 #endif |
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43 |
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44 #include <boost/thread/mutex.hpp> |
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45 #include <boost/date_time/posix_time/posix_time.hpp> |
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46 |
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47 namespace Orthanc |
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48 { |
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49 enum MetricsType |
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50 { |
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51 MetricsType_Default, |
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52 MetricsType_MaxOver10Seconds, |
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53 MetricsType_MaxOver1Minute, |
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54 MetricsType_MinOver10Seconds, |
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55 MetricsType_MinOver1Minute |
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56 }; |
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57 |
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58 class MetricsRegistry : public boost::noncopyable |
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59 { |
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60 private: |
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61 class Item; |
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62 |
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63 typedef std::map<std::string, Item*> Content; |
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64 |
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65 bool enabled_; |
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66 boost::mutex mutex_; |
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67 Content content_; |
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68 |
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69 void SetValueInternal(const std::string& name, |
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70 float value, |
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71 MetricsType type); |
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72 |
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73 public: |
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74 MetricsRegistry() : |
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75 enabled_(true) |
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76 { |
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77 } |
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78 |
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79 ~MetricsRegistry(); |
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80 |
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81 bool IsEnabled() const |
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82 { |
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83 return enabled_; |
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84 } |
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85 |
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86 void SetEnabled(bool enabled); |
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87 |
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88 void Register(const std::string& name, |
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89 MetricsType type); |
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90 |
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91 void SetValue(const std::string& name, |
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92 float value, |
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93 MetricsType type) |
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94 { |
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95 // Inlining to avoid loosing time if metrics are disabled |
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96 if (enabled_) |
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97 { |
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98 SetValueInternal(name, value, type); |
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99 } |
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100 } |
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101 |
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102 void SetValue(const std::string& name, |
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103 float value) |
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104 { |
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105 SetValue(name, value, MetricsType_Default); |
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106 } |
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107 |
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108 MetricsType GetMetricsType(const std::string& name); |
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109 |
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110 // https://prometheus.io/docs/instrumenting/exposition_formats/#text-based-format |
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111 void ExportPrometheusText(std::string& s); |
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112 |
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113 |
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114 class SharedMetrics : public boost::noncopyable |
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115 { |
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116 private: |
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117 boost::mutex mutex_; |
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118 MetricsRegistry& registry_; |
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119 std::string name_; |
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120 float value_; |
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121 |
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122 public: |
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123 SharedMetrics(MetricsRegistry& registry, |
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124 const std::string& name, |
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125 MetricsType type) : |
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126 registry_(registry), |
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127 name_(name), |
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128 value_(0) |
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129 { |
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130 } |
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131 |
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132 void Add(float delta); |
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133 }; |
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134 |
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135 |
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136 class ActiveCounter : public boost::noncopyable |
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137 { |
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138 private: |
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139 SharedMetrics& metrics_; |
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140 |
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141 public: |
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142 ActiveCounter(SharedMetrics& metrics) : |
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143 metrics_(metrics) |
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144 { |
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145 metrics_.Add(1); |
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146 } |
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147 |
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148 ~ActiveCounter() |
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149 { |
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150 metrics_.Add(-1); |
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151 } |
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152 }; |
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153 |
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154 |
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155 class Timer : public boost::noncopyable |
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156 { |
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157 private: |
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158 MetricsRegistry& registry_; |
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159 std::string name_; |
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160 MetricsType type_; |
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161 bool active_; |
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162 boost::posix_time::ptime start_; |
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163 |
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164 void Start(); |
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165 |
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166 public: |
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167 Timer(MetricsRegistry& registry, |
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168 const std::string& name) : |
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169 registry_(registry), |
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170 name_(name), |
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171 type_(MetricsType_MaxOver10Seconds) |
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172 { |
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173 Start(); |
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174 } |
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175 |
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176 Timer(MetricsRegistry& registry, |
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177 const std::string& name, |
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178 MetricsType type) : |
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179 registry_(registry), |
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180 name_(name), |
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181 type_(type) |
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182 { |
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183 Start(); |
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184 } |
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185 |
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186 ~Timer(); |
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187 }; |
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188 }; |
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189 } |