Mercurial > hg > orthanc
annotate Core/Logging.cpp @ 2914:15b517659a74
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 31 Oct 2018 18:07:28 +0100 |
parents | 7133ad478eea |
children | 4e43e67f8ecf |
rev | line source |
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1485 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
1485 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
1485 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
34 #include "PrecompiledHeaders.h" | |
35 #include "Logging.h" | |
36 | |
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37 #if ORTHANC_ENABLE_LOGGING != 1 |
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38 |
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39 namespace Orthanc |
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40 { |
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41 namespace Logging |
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42 { |
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43 void Initialize() |
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44 { |
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45 } |
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46 |
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47 void Finalize() |
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48 { |
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49 } |
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51 void Reset() |
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52 { |
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53 } |
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54 |
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55 void Flush() |
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56 { |
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57 } |
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58 |
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59 void EnableInfoLevel(bool enabled) |
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60 { |
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61 } |
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63 void EnableTraceLevel(bool enabled) |
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64 { |
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65 } |
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66 |
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67 void SetTargetFile(const std::string& path) |
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68 { |
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69 } |
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70 |
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71 void SetTargetFolder(const std::string& path) |
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72 { |
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73 } |
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74 } |
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75 } |
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76 |
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77 |
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78 #elif ORTHANC_ENABLE_LOGGING_PLUGIN == 1 |
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79 |
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80 /********************************************************* |
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81 * Logger compatible with the Orthanc plugin SDK |
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82 *********************************************************/ |
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83 |
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84 #include <boost/lexical_cast.hpp> |
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85 |
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86 namespace Orthanc |
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87 { |
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88 namespace Logging |
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89 { |
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90 static OrthancPluginContext* context_ = NULL; |
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91 |
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92 void Initialize(OrthancPluginContext* context) |
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93 { |
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95 } |
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96 |
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98 const char* file /* ignored */, |
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99 int line /* ignored */) : |
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100 level_(level) |
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101 { |
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102 } |
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103 |
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104 InternalLogger::~InternalLogger() |
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105 { |
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106 if (context_ != NULL) |
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107 { |
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108 switch (level_) |
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109 { |
2505 | 110 case InternalLevel_ERROR: |
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111 OrthancPluginLogError(context_, message_.c_str()); |
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112 break; |
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113 |
2505 | 114 case InternalLevel_WARNING: |
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115 OrthancPluginLogWarning(context_, message_.c_str()); |
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116 break; |
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117 |
2505 | 118 case InternalLevel_INFO: |
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119 OrthancPluginLogInfo(context_, message_.c_str()); |
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120 break; |
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121 |
2505 | 122 case InternalLevel_TRACE: |
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123 // Not used by plugins |
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124 break; |
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125 |
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126 default: |
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127 { |
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128 std::string s = ("Unknown log level (" + boost::lexical_cast<std::string>(level_) + |
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129 ") for message: " + message_); |
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130 OrthancPluginLogError(context_, s.c_str()); |
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131 break; |
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132 } |
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134 } |
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135 } |
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136 } |
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137 } |
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138 |
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139 |
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140 #elif ORTHANC_ENABLE_LOGGING_STDIO == 1 |
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141 |
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142 /********************************************************* |
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143 * Logger compatible with <stdio.h> |
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144 *********************************************************/ |
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145 |
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146 #include <stdio.h> |
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147 #include <boost/lexical_cast.hpp> |
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148 |
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149 namespace Orthanc |
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150 { |
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151 namespace Logging |
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152 { |
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153 static bool globalVerbose_ = false; |
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154 static bool globalTrace_ = false; |
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155 |
2505 | 156 InternalLogger::InternalLogger(InternalLevel level, |
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157 const char* file /* ignored */, |
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158 int line /* ignored */) : |
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159 level_(level) |
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160 { |
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161 } |
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162 |
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163 InternalLogger::~InternalLogger() |
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164 { |
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165 switch (level_) |
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166 { |
2505 | 167 case InternalLevel_ERROR: |
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168 fprintf(stderr, "E: %s\n", message_.c_str()); |
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169 break; |
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170 |
2505 | 171 case InternalLevel_WARNING: |
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172 fprintf(stdout, "W: %s\n", message_.c_str()); |
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173 break; |
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174 |
2505 | 175 case InternalLevel_INFO: |
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176 if (globalVerbose_) |
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177 { |
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178 fprintf(stdout, "I: %s\n", message_.c_str()); |
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179 } |
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180 break; |
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181 |
2505 | 182 case InternalLevel_TRACE: |
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183 if (globalTrace_) |
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184 { |
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185 fprintf(stdout, "T: %s\n", message_.c_str()); |
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186 } |
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187 break; |
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188 |
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189 default: |
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190 fprintf(stderr, "Unknown log level (%d) for message: %s\n", level_, message_.c_str()); |
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191 } |
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192 } |
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193 |
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194 void EnableInfoLevel(bool enabled) |
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195 { |
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196 globalVerbose_ = enabled; |
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197 } |
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198 |
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199 void EnableTraceLevel(bool enabled) |
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200 { |
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201 globalTrace_ = enabled; |
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202 } |
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203 } |
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204 } |
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205 |
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206 |
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207 #else /* ORTHANC_ENABLE_LOGGING_PLUGIN == 0 && |
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208 ORTHANC_ENABLE_LOGGING_STDIO == 0 && |
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209 ORTHANC_ENABLE_LOGGING == 1 */ |
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211 /********************************************************* | |
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212 * Internal logger of Orthanc, that mimics some |
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213 * behavior from Google Log. |
1489 | 214 *********************************************************/ |
215 | |
216 #include "OrthancException.h" | |
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217 #include "Enumerations.h" |
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218 #include "Toolbox.h" |
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219 |
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220 #if ORTHANC_SANDBOXED == 1 |
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221 # include <stdio.h> |
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222 #else |
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223 # include "SystemToolbox.h" |
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224 #endif |
1489 | 225 |
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226 #include <fstream> |
1489 | 227 #include <boost/filesystem.hpp> |
228 #include <boost/thread.hpp> | |
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229 #include <boost/date_time/posix_time/posix_time.hpp> |
1489 | 230 |
231 | |
232 namespace | |
233 { | |
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234 struct LoggingContext |
1489 | 235 { |
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236 bool infoEnabled_; |
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237 bool traceEnabled_; |
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238 std::string targetFile_; |
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239 std::string targetFolder_; |
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240 |
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241 std::ostream* error_; |
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242 std::ostream* warning_; |
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243 std::ostream* info_; |
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244 |
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245 std::auto_ptr<std::ofstream> file_; |
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246 |
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247 LoggingContext() : |
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248 infoEnabled_(false), |
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249 traceEnabled_(false), |
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250 error_(&std::cerr), |
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251 warning_(&std::cerr), |
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252 info_(&std::cerr) |
1489 | 253 { |
254 } | |
255 }; | |
256 } | |
257 | |
258 | |
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259 |
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260 static std::auto_ptr<LoggingContext> loggingContext_; |
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261 static boost::mutex loggingMutex_; |
1489 | 262 |
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263 |
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264 |
1489 | 265 namespace Orthanc |
266 { | |
267 namespace Logging | |
268 { | |
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269 static void GetLogPath(boost::filesystem::path& log, |
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270 boost::filesystem::path& link, |
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271 const std::string& suffix, |
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272 const std::string& directory) |
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273 { |
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274 /** |
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275 From Google Log documentation: |
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276 |
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277 Unless otherwise specified, logs will be written to the filename |
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278 "<program name>.<hostname>.<user name>.log<suffix>.", |
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279 followed by the date, time, and pid (you can't prevent the date, |
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280 time, and pid from being in the filename). |
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281 |
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282 In this implementation : "hostname" and "username" are not used |
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283 **/ |
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284 |
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285 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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286 boost::filesystem::path root(directory); |
2140 | 287 boost::filesystem::path exe(SystemToolbox::GetPathToExecutable()); |
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288 |
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289 if (!boost::filesystem::exists(root) || |
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290 !boost::filesystem::is_directory(root)) |
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291 { |
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292 throw OrthancException(ErrorCode_CannotWriteFile); |
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293 } |
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294 |
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295 char date[64]; |
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296 sprintf(date, "%04d%02d%02d-%02d%02d%02d.%d", |
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297 static_cast<int>(now.date().year()), |
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298 now.date().month().as_number(), |
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299 now.date().day().as_number(), |
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300 static_cast<int>(now.time_of_day().hours()), |
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301 static_cast<int>(now.time_of_day().minutes()), |
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302 static_cast<int>(now.time_of_day().seconds()), |
2140 | 303 SystemToolbox::GetProcessId()); |
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304 |
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305 std::string programName = exe.filename().replace_extension("").string(); |
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306 |
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307 log = (root / (programName + ".log" + suffix + "." + std::string(date))); |
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308 link = (root / (programName + ".log" + suffix)); |
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309 } |
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310 |
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311 |
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312 static void PrepareLogFolder(std::auto_ptr<std::ofstream>& file, |
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313 const std::string& suffix, |
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314 const std::string& directory) |
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315 { |
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316 boost::filesystem::path log, link; |
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317 GetLogPath(log, link, suffix, directory); |
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318 |
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319 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) |
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320 boost::filesystem::remove(link); |
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321 boost::filesystem::create_symlink(log.filename(), link); |
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322 #endif |
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323 |
1494 | 324 file.reset(new std::ofstream(log.string().c_str())); |
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325 } |
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326 |
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327 |
1489 | 328 void Initialize() |
329 { | |
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330 boost::mutex::scoped_lock lock(loggingMutex_); |
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331 loggingContext_.reset(new LoggingContext); |
1489 | 332 } |
333 | |
334 void Finalize() | |
335 { | |
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336 boost::mutex::scoped_lock lock(loggingMutex_); |
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337 loggingContext_.reset(NULL); |
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338 } |
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339 |
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340 void Reset() |
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341 { |
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342 // Recover the old logging context |
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343 std::auto_ptr<LoggingContext> old; |
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344 |
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345 { |
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346 boost::mutex::scoped_lock lock(loggingMutex_); |
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347 if (loggingContext_.get() == NULL) |
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348 { |
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349 return; |
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350 } |
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351 else |
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352 { |
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353 old = loggingContext_; |
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354 |
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355 // Create a new logging context, |
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356 loggingContext_.reset(new LoggingContext); |
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357 } |
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358 } |
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359 |
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360 EnableInfoLevel(old->infoEnabled_); |
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361 EnableTraceLevel(old->traceEnabled_); |
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362 |
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363 if (!old->targetFolder_.empty()) |
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364 { |
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365 SetTargetFolder(old->targetFolder_); |
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366 } |
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367 else if (!old->targetFile_.empty()) |
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368 { |
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369 SetTargetFile(old->targetFile_); |
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370 } |
1489 | 371 } |
372 | |
373 void EnableInfoLevel(bool enabled) | |
374 { | |
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375 boost::mutex::scoped_lock lock(loggingMutex_); |
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376 assert(loggingContext_.get() != NULL); |
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377 |
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378 loggingContext_->infoEnabled_ = enabled; |
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379 |
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380 if (!enabled) |
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381 { |
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382 // Also disable the "TRACE" level when info-level debugging is disabled |
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383 loggingContext_->traceEnabled_ = false; |
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384 } |
1489 | 385 } |
386 | |
387 void EnableTraceLevel(bool enabled) | |
388 { | |
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389 boost::mutex::scoped_lock lock(loggingMutex_); |
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390 assert(loggingContext_.get() != NULL); |
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391 |
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392 loggingContext_->traceEnabled_ = enabled; |
1489 | 393 |
394 if (enabled) | |
395 { | |
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396 // Also enable the "INFO" level when trace-level debugging is enabled |
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397 loggingContext_->infoEnabled_ = true; |
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398 } |
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399 } |
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400 |
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401 |
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402 static void CheckFile(std::auto_ptr<std::ofstream>& f) |
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403 { |
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404 if (loggingContext_->file_.get() == NULL || |
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405 !loggingContext_->file_->is_open()) |
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406 { |
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407 throw OrthancException(ErrorCode_CannotWriteFile); |
1489 | 408 } |
409 } | |
410 | |
411 void SetTargetFolder(const std::string& path) | |
412 { | |
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413 boost::mutex::scoped_lock lock(loggingMutex_); |
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414 assert(loggingContext_.get() != NULL); |
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415 |
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416 PrepareLogFolder(loggingContext_->file_, "" /* no suffix */, path); |
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417 CheckFile(loggingContext_->file_); |
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418 |
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419 loggingContext_->targetFile_.clear(); |
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420 loggingContext_->targetFolder_ = path; |
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421 loggingContext_->warning_ = loggingContext_->file_.get(); |
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422 loggingContext_->error_ = loggingContext_->file_.get(); |
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423 loggingContext_->info_ = loggingContext_->file_.get(); |
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424 } |
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425 |
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426 |
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427 void SetTargetFile(const std::string& path) |
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428 { |
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429 boost::mutex::scoped_lock lock(loggingMutex_); |
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430 assert(loggingContext_.get() != NULL); |
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431 |
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432 loggingContext_->file_.reset(new std::ofstream(path.c_str(), std::fstream::app)); |
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433 CheckFile(loggingContext_->file_); |
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434 |
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435 loggingContext_->targetFile_ = path; |
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436 loggingContext_->targetFolder_.clear(); |
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437 loggingContext_->warning_ = loggingContext_->file_.get(); |
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438 loggingContext_->error_ = loggingContext_->file_.get(); |
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439 loggingContext_->info_ = loggingContext_->file_.get(); |
1489 | 440 } |
441 | |
2015
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442 |
1489 | 443 InternalLogger::InternalLogger(const char* level, |
444 const char* file, | |
445 int line) : | |
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446 lock_(loggingMutex_), |
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447 stream_(&null_) // By default, logging to "/dev/null" is simulated |
1489 | 448 { |
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449 if (loggingContext_.get() == NULL) |
1489 | 450 { |
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451 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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452 return; |
1489 | 453 } |
454 | |
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455 try |
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456 { |
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457 LogLevel l = StringToLogLevel(level); |
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458 |
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459 if ((l == LogLevel_Info && !loggingContext_->infoEnabled_) || |
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460 (l == LogLevel_Trace && !loggingContext_->traceEnabled_)) |
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461 { |
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462 // This logging level is disabled, directly exit and unlock |
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463 // the mutex to speed-up things. The stream is set to "/dev/null" |
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464 lock_.unlock(); |
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465 return; |
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466 } |
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467 |
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468 // Compute the header of the line, temporary release the lock as |
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469 // this is a time-consuming operation |
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470 lock_.unlock(); |
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471 std::string header; |
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472 |
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473 { |
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474 boost::filesystem::path path(file); |
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475 boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); |
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476 boost::posix_time::time_duration duration = now.time_of_day(); |
1489 | 477 |
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478 /** |
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479 From Google Log documentation: |
1489 | 480 |
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481 "Log lines have this form: |
1489 | 482 |
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483 Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... |
1489 | 484 |
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485 where the fields are defined as follows: |
1489 | 486 |
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487 L A single character, representing the log level (eg 'I' for INFO) |
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488 mm The month (zero padded; ie May is '05') |
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489 dd The day (zero padded) |
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490 hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds |
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491 threadid The space-padded thread ID as returned by GetTID() (this matches the PID on Linux) |
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492 file The file name |
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493 line The line number |
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494 msg The user-supplied message" |
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495 |
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496 In this implementation, "threadid" is not printed. |
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497 **/ |
1489 | 498 |
2836
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499 char date[40]; |
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500 sprintf(date, "%c%02d%02d %02d:%02d:%02d.%06d ", |
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501 level[0], |
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502 now.date().month().as_number(), |
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503 now.date().day().as_number(), |
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504 static_cast<int>(duration.hours()), |
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505 static_cast<int>(duration.minutes()), |
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506 static_cast<int>(duration.seconds()), |
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507 static_cast<int>(duration.fractional_seconds())); |
1489 | 508 |
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509 header = std::string(date) + path.filename().string() + ":" + boost::lexical_cast<std::string>(line) + "] "; |
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510 } |
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511 |
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512 |
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513 // The header is computed, we now re-lock the mutex to access |
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514 // the stream objects. Pay attention that "loggingContext_", |
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515 // "infoEnabled_" or "traceEnabled_" might have changed while |
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516 // the mutex was unlocked. |
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517 lock_.lock(); |
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518 |
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519 if (loggingContext_.get() == NULL) |
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520 { |
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521 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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522 return; |
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523 } |
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524 |
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525 switch (l) |
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526 { |
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527 case LogLevel_Error: |
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528 stream_ = loggingContext_->error_; |
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529 break; |
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530 |
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531 case LogLevel_Warning: |
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532 stream_ = loggingContext_->warning_; |
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533 break; |
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534 |
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535 case LogLevel_Info: |
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536 if (loggingContext_->infoEnabled_) |
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537 { |
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538 stream_ = loggingContext_->info_; |
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539 } |
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540 |
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541 break; |
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542 |
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543 case LogLevel_Trace: |
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544 if (loggingContext_->traceEnabled_) |
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545 { |
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546 stream_ = loggingContext_->info_; |
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547 } |
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548 |
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549 break; |
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550 |
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551 default: |
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552 throw OrthancException(ErrorCode_InternalError); |
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553 } |
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554 |
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555 if (stream_ == &null_) |
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556 { |
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557 // The logging is disabled for this level. The stream is the |
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558 // "null_" member of this object, so we can release the global |
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559 // mutex. |
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560 lock_.unlock(); |
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561 } |
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562 |
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563 (*stream_) << header; |
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564 } |
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565 catch (...) |
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566 { |
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567 // Something is going really wrong, probably running out of |
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568 // memory. Fallback to a degraded mode. |
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569 stream_ = loggingContext_->error_; |
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570 (*stream_) << "E???? ??:??:??.?????? ] "; |
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571 } |
1489 | 572 } |
1507 | 573 |
574 | |
575 InternalLogger::~InternalLogger() | |
576 { | |
577 if (stream_ != &null_) | |
578 { | |
579 #if defined(_WIN32) | |
580 *stream_ << "\r\n"; | |
581 #else | |
582 *stream_ << "\n"; | |
583 #endif | |
584 | |
585 stream_->flush(); | |
586 } | |
587 } | |
588 | |
589 | |
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590 void Flush() |
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591 { |
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592 boost::mutex::scoped_lock lock(loggingMutex_); |
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593 |
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594 if (loggingContext_.get() != NULL && |
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595 loggingContext_->file_.get() != NULL) |
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596 { |
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597 loggingContext_->file_->flush(); |
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598 } |
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599 } |
1485 | 600 } |
601 } | |
1488 | 602 |
1489 | 603 #endif // ORTHANC_ENABLE_LOGGING |