Mercurial > hg > orthanc
annotate Core/Logging.cpp @ 2276:b85f68a98474
ImportDicomFiles: Look for Python interpreter in PATH
Some environments (in particular the official Docker image for Python)
use a different path. `env' will lookup the given command in the PATH
directories like shells do (though without the overhead), thus making
the script more portable (it's conventional to have /usr/bin/env present
everywhere).
author | Thibault Nélis <tn@osimis.io> |
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date | Wed, 12 Apr 2017 18:01:04 +0200 |
parents | 441352e7a9d1 |
children | 2aff870c2c58 |
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 Osimis, 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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97 InternalLogger::InternalLogger(const char* level, |
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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 if (level_ == "ERROR") |
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109 { |
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110 OrthancPluginLogError(context_, message_.c_str()); |
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111 } |
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112 else if (level_ == "WARNING") |
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113 { |
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114 OrthancPluginLogWarning(context_, message_.c_str()); |
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115 } |
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116 else if (level_ == "INFO") |
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117 { |
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118 OrthancPluginLogInfo(context_, message_.c_str()); |
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119 } |
2253 | 120 else |
121 { | |
122 std::string s = "Unknown log level (" + level_ + ") for message: " + message_; | |
123 OrthancPluginLogError(context_, s.c_str()); | |
124 } | |
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125 } |
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126 } |
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127 |
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128 InternalLogger& InternalLogger::operator<< (const std::string& message) |
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129 { |
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130 message_ += message; |
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131 return *this; |
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132 } |
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133 |
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134 InternalLogger& InternalLogger::operator<< (const char* message) |
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135 { |
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136 message_ += std::string(message); |
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137 return *this; |
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138 } |
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139 |
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140 InternalLogger& InternalLogger::operator<< (int message) |
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141 { |
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142 message_ += boost::lexical_cast<std::string>(message); |
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143 return *this; |
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144 } |
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145 } |
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146 } |
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147 |
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148 |
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149 #else /* ORTHANC_ENABLE_LOGGING_PLUGIN == 0 && ORTHANC_ENABLE_LOGGING == 1 */ |
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151 /********************************************************* | |
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152 * Internal logger of Orthanc, that mimics some |
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153 * behavior from Google Log. |
1489 | 154 *********************************************************/ |
155 | |
156 #include "OrthancException.h" | |
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157 #include "Enumerations.h" |
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158 #include "Toolbox.h" |
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159 #include "SystemToolbox.h" |
1489 | 160 |
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161 #include <fstream> |
1489 | 162 #include <boost/filesystem.hpp> |
163 #include <boost/thread.hpp> | |
164 | |
165 #if BOOST_HAS_DATE_TIME == 1 | |
166 # include <boost/date_time/posix_time/posix_time.hpp> | |
167 #else | |
168 # error Boost::date_time is required | |
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169 #endif |
1489 | 170 |
171 | |
172 namespace | |
173 { | |
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174 struct LoggingContext |
1489 | 175 { |
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176 bool infoEnabled_; |
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177 bool traceEnabled_; |
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178 std::string targetFile_; |
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179 std::string targetFolder_; |
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180 |
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181 std::ostream* error_; |
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182 std::ostream* warning_; |
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183 std::ostream* info_; |
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184 |
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185 std::auto_ptr<std::ofstream> file_; |
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186 |
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187 LoggingContext() : |
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188 infoEnabled_(false), |
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189 traceEnabled_(false), |
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190 error_(&std::cerr), |
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191 warning_(&std::cerr), |
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192 info_(&std::cerr) |
1489 | 193 { |
194 } | |
195 }; | |
196 } | |
197 | |
198 | |
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199 |
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200 static std::auto_ptr<LoggingContext> loggingContext_; |
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201 static boost::mutex loggingMutex_; |
1489 | 202 |
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203 |
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204 |
1489 | 205 namespace Orthanc |
206 { | |
207 namespace Logging | |
208 { | |
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209 static void GetLogPath(boost::filesystem::path& log, |
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210 boost::filesystem::path& link, |
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211 const std::string& suffix, |
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212 const std::string& directory) |
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213 { |
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214 /** |
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215 From Google Log documentation: |
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216 |
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217 Unless otherwise specified, logs will be written to the filename |
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218 "<program name>.<hostname>.<user name>.log<suffix>.", |
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219 followed by the date, time, and pid (you can't prevent the date, |
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220 time, and pid from being in the filename). |
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221 |
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222 In this implementation : "hostname" and "username" are not used |
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223 **/ |
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224 |
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225 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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226 boost::filesystem::path root(directory); |
2140 | 227 boost::filesystem::path exe(SystemToolbox::GetPathToExecutable()); |
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228 |
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229 if (!boost::filesystem::exists(root) || |
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230 !boost::filesystem::is_directory(root)) |
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231 { |
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232 throw OrthancException(ErrorCode_CannotWriteFile); |
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233 } |
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234 |
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235 char date[64]; |
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236 sprintf(date, "%04d%02d%02d-%02d%02d%02d.%d", |
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237 static_cast<int>(now.date().year()), |
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238 now.date().month().as_number(), |
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239 now.date().day().as_number(), |
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240 now.time_of_day().hours(), |
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241 now.time_of_day().minutes(), |
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242 now.time_of_day().seconds(), |
2140 | 243 SystemToolbox::GetProcessId()); |
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244 |
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245 std::string programName = exe.filename().replace_extension("").string(); |
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246 |
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247 log = (root / (programName + ".log" + suffix + "." + std::string(date))); |
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248 link = (root / (programName + ".log" + suffix)); |
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249 } |
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250 |
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251 |
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252 static void PrepareLogFolder(std::auto_ptr<std::ofstream>& file, |
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253 const std::string& suffix, |
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254 const std::string& directory) |
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255 { |
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256 boost::filesystem::path log, link; |
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257 GetLogPath(log, link, suffix, directory); |
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258 |
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259 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) |
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260 boost::filesystem::remove(link); |
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261 boost::filesystem::create_symlink(log.filename(), link); |
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262 #endif |
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263 |
1494 | 264 file.reset(new std::ofstream(log.string().c_str())); |
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265 } |
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266 |
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267 |
1489 | 268 void Initialize() |
269 { | |
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270 boost::mutex::scoped_lock lock(loggingMutex_); |
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271 loggingContext_.reset(new LoggingContext); |
1489 | 272 } |
273 | |
274 void Finalize() | |
275 { | |
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276 boost::mutex::scoped_lock lock(loggingMutex_); |
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277 loggingContext_.reset(NULL); |
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278 } |
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279 |
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280 void Reset() |
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281 { |
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282 // Recover the old logging context |
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283 std::auto_ptr<LoggingContext> old; |
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284 |
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285 { |
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286 boost::mutex::scoped_lock lock(loggingMutex_); |
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287 if (loggingContext_.get() == NULL) |
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288 { |
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289 return; |
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290 } |
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291 else |
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292 { |
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293 old = loggingContext_; |
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294 |
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295 // Create a new logging context, |
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296 loggingContext_.reset(new LoggingContext); |
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297 } |
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298 } |
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299 |
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300 EnableInfoLevel(old->infoEnabled_); |
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301 EnableTraceLevel(old->traceEnabled_); |
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302 |
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303 if (!old->targetFolder_.empty()) |
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304 { |
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305 SetTargetFolder(old->targetFolder_); |
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306 } |
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307 else if (!old->targetFile_.empty()) |
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308 { |
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309 SetTargetFile(old->targetFile_); |
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310 } |
1489 | 311 } |
312 | |
313 void EnableInfoLevel(bool enabled) | |
314 { | |
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315 boost::mutex::scoped_lock lock(loggingMutex_); |
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316 assert(loggingContext_.get() != NULL); |
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317 |
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318 loggingContext_->infoEnabled_ = enabled; |
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319 |
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320 if (!enabled) |
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321 { |
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322 // Also disable the "TRACE" level when info-level debugging is disabled |
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323 loggingContext_->traceEnabled_ = false; |
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324 } |
1489 | 325 } |
326 | |
327 void EnableTraceLevel(bool enabled) | |
328 { | |
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329 boost::mutex::scoped_lock lock(loggingMutex_); |
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330 assert(loggingContext_.get() != NULL); |
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331 |
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332 loggingContext_->traceEnabled_ = enabled; |
1489 | 333 |
334 if (enabled) | |
335 { | |
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336 // Also enable the "INFO" level when trace-level debugging is enabled |
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337 loggingContext_->infoEnabled_ = true; |
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338 } |
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339 } |
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340 |
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341 |
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342 static void CheckFile(std::auto_ptr<std::ofstream>& f) |
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343 { |
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344 if (loggingContext_->file_.get() == NULL || |
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345 !loggingContext_->file_->is_open()) |
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346 { |
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347 throw OrthancException(ErrorCode_CannotWriteFile); |
1489 | 348 } |
349 } | |
350 | |
351 void SetTargetFolder(const std::string& path) | |
352 { | |
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353 boost::mutex::scoped_lock lock(loggingMutex_); |
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354 assert(loggingContext_.get() != NULL); |
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355 |
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356 PrepareLogFolder(loggingContext_->file_, "" /* no suffix */, path); |
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357 CheckFile(loggingContext_->file_); |
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358 |
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359 loggingContext_->targetFile_.clear(); |
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360 loggingContext_->targetFolder_ = path; |
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361 loggingContext_->warning_ = loggingContext_->file_.get(); |
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362 loggingContext_->error_ = loggingContext_->file_.get(); |
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363 loggingContext_->info_ = loggingContext_->file_.get(); |
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364 } |
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365 |
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366 |
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367 void SetTargetFile(const std::string& path) |
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368 { |
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369 boost::mutex::scoped_lock lock(loggingMutex_); |
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370 assert(loggingContext_.get() != NULL); |
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371 |
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372 loggingContext_->file_.reset(new std::ofstream(path.c_str(), std::fstream::app)); |
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373 CheckFile(loggingContext_->file_); |
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374 |
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375 loggingContext_->targetFile_ = path; |
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376 loggingContext_->targetFolder_.clear(); |
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377 loggingContext_->warning_ = loggingContext_->file_.get(); |
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378 loggingContext_->error_ = loggingContext_->file_.get(); |
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379 loggingContext_->info_ = loggingContext_->file_.get(); |
1489 | 380 } |
381 | |
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382 |
1489 | 383 InternalLogger::InternalLogger(const char* level, |
384 const char* file, | |
385 int line) : | |
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386 lock_(loggingMutex_), |
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387 stream_(&null_) // By default, logging to "/dev/null" is simulated |
1489 | 388 { |
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389 if (loggingContext_.get() == NULL) |
1489 | 390 { |
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391 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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392 return; |
1489 | 393 } |
394 | |
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395 try |
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396 { |
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397 LogLevel l = StringToLogLevel(level); |
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398 |
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399 if ((l == LogLevel_Info && !loggingContext_->infoEnabled_) || |
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400 (l == LogLevel_Trace && !loggingContext_->traceEnabled_)) |
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401 { |
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402 // This logging level is disabled, directly exit and unlock |
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403 // the mutex to speed-up things. The stream is set to "/dev/null" |
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404 lock_.unlock(); |
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405 return; |
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406 } |
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407 |
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408 // Compute the header of the line, temporary release the lock as |
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409 // this is a time-consuming operation |
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410 lock_.unlock(); |
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411 std::string header; |
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412 |
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413 { |
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414 boost::filesystem::path path(file); |
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415 boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); |
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416 boost::posix_time::time_duration duration = now.time_of_day(); |
1489 | 417 |
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418 /** |
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419 From Google Log documentation: |
1489 | 420 |
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421 "Log lines have this form: |
1489 | 422 |
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423 Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... |
1489 | 424 |
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425 where the fields are defined as follows: |
1489 | 426 |
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427 L A single character, representing the log level (eg 'I' for INFO) |
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428 mm The month (zero padded; ie May is '05') |
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429 dd The day (zero padded) |
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430 hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds |
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431 threadid The space-padded thread ID as returned by GetTID() (this matches the PID on Linux) |
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432 file The file name |
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433 line The line number |
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434 msg The user-supplied message" |
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435 |
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436 In this implementation, "threadid" is not printed. |
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437 **/ |
1489 | 438 |
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439 char date[32]; |
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440 sprintf(date, "%c%02d%02d %02d:%02d:%02d.%06d ", |
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441 level[0], |
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442 now.date().month().as_number(), |
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443 now.date().day().as_number(), |
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444 duration.hours(), |
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445 duration.minutes(), |
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446 duration.seconds(), |
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447 static_cast<int>(duration.fractional_seconds())); |
1489 | 448 |
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449 header = std::string(date) + path.filename().string() + ":" + boost::lexical_cast<std::string>(line) + "] "; |
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450 } |
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451 |
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452 |
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453 // The header is computed, we now re-lock the mutex to access |
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454 // the stream objects. Pay attention that "loggingContext_", |
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455 // "infoEnabled_" or "traceEnabled_" might have changed while |
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456 // the mutex was unlocked. |
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457 lock_.lock(); |
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458 |
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459 if (loggingContext_.get() == NULL) |
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460 { |
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461 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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462 return; |
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463 } |
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464 |
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465 switch (l) |
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466 { |
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467 case LogLevel_Error: |
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468 stream_ = loggingContext_->error_; |
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469 break; |
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470 |
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471 case LogLevel_Warning: |
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472 stream_ = loggingContext_->warning_; |
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473 break; |
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474 |
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475 case LogLevel_Info: |
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476 if (loggingContext_->infoEnabled_) |
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477 { |
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478 stream_ = loggingContext_->info_; |
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479 } |
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480 |
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481 break; |
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482 |
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483 case LogLevel_Trace: |
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484 if (loggingContext_->traceEnabled_) |
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485 { |
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486 stream_ = loggingContext_->info_; |
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487 } |
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488 |
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489 break; |
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490 |
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491 default: |
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492 throw OrthancException(ErrorCode_InternalError); |
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493 } |
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494 |
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495 if (stream_ == &null_) |
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496 { |
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497 // The logging is disabled for this level. The stream is the |
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498 // "null_" member of this object, so we can release the global |
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499 // mutex. |
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500 lock_.unlock(); |
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501 } |
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502 |
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503 (*stream_) << header; |
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504 } |
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505 catch (...) |
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506 { |
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507 // Something is going really wrong, probably running out of |
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508 // memory. Fallback to a degraded mode. |
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509 stream_ = loggingContext_->error_; |
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510 (*stream_) << "E???? ??:??:??.?????? ] "; |
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511 } |
1489 | 512 } |
1507 | 513 |
514 | |
515 InternalLogger::~InternalLogger() | |
516 { | |
517 if (stream_ != &null_) | |
518 { | |
519 #if defined(_WIN32) | |
520 *stream_ << "\r\n"; | |
521 #else | |
522 *stream_ << "\n"; | |
523 #endif | |
524 | |
525 stream_->flush(); | |
526 } | |
527 } | |
528 | |
529 | |
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530 void Flush() |
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531 { |
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532 boost::mutex::scoped_lock lock(loggingMutex_); |
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533 |
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534 if (loggingContext_.get() != NULL && |
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535 loggingContext_->file_.get() != NULL) |
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536 { |
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537 loggingContext_->file_->flush(); |
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538 } |
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539 } |
1485 | 540 } |
541 } | |
1488 | 542 |
1489 | 543 #endif // ORTHANC_ENABLE_LOGGING |