Mercurial > hg > orthanc
annotate Core/Logging.cpp @ 2136:dd609a99d39a
uniformization of the macro naming
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 09 Nov 2016 14:08:05 +0100 |
parents | ddc75c6c712d |
children | aa4b8895cd23 |
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 |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #include "PrecompiledHeaders.h" | |
34 #include "Logging.h" | |
35 | |
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36 #if ORTHANC_ENABLE_LOGGING != 1 |
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37 |
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38 namespace Orthanc |
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39 { |
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40 namespace Logging |
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41 { |
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42 void Initialize() |
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43 { |
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44 } |
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45 |
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46 void Finalize() |
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47 { |
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48 } |
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50 void Reset() |
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51 { |
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52 } |
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53 |
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54 void Flush() |
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55 { |
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56 } |
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57 |
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58 void EnableInfoLevel(bool enabled) |
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59 { |
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60 } |
1489 | 61 |
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62 void EnableTraceLevel(bool enabled) |
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63 { |
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64 } |
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65 |
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66 void SetTargetFile(const std::string& path) |
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67 { |
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68 } |
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69 |
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70 void SetTargetFolder(const std::string& path) |
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71 { |
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72 } |
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73 } |
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74 } |
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75 |
1489 | 76 #else |
77 | |
78 /********************************************************* | |
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79 * Internal logger of Orthanc, that mimics some |
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80 * behavior from Google Log. |
1489 | 81 *********************************************************/ |
82 | |
83 #include "OrthancException.h" | |
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84 #include "Enumerations.h" |
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85 #include "Toolbox.h" |
1489 | 86 |
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87 #include <fstream> |
1489 | 88 #include <boost/filesystem.hpp> |
89 #include <boost/thread.hpp> | |
90 | |
91 #if BOOST_HAS_DATE_TIME == 1 | |
92 # include <boost/date_time/posix_time/posix_time.hpp> | |
93 #else | |
94 # error Boost::date_time is required | |
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95 #endif |
1489 | 96 |
97 | |
98 namespace | |
99 { | |
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100 struct LoggingContext |
1489 | 101 { |
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102 bool infoEnabled_; |
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103 bool traceEnabled_; |
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104 std::string targetFile_; |
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105 std::string targetFolder_; |
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106 |
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107 std::ostream* error_; |
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108 std::ostream* warning_; |
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109 std::ostream* info_; |
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110 |
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111 std::auto_ptr<std::ofstream> file_; |
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112 |
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113 LoggingContext() : |
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114 infoEnabled_(false), |
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115 traceEnabled_(false), |
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116 error_(&std::cerr), |
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117 warning_(&std::cerr), |
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118 info_(&std::cerr) |
1489 | 119 { |
120 } | |
121 }; | |
122 } | |
123 | |
124 | |
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125 |
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126 static std::auto_ptr<LoggingContext> loggingContext_; |
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127 static boost::mutex loggingMutex_; |
1489 | 128 |
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129 |
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130 |
1489 | 131 namespace Orthanc |
132 { | |
133 namespace Logging | |
134 { | |
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135 static void GetLogPath(boost::filesystem::path& log, |
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136 boost::filesystem::path& link, |
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137 const std::string& suffix, |
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138 const std::string& directory) |
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139 { |
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140 /** |
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141 From Google Log documentation: |
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142 |
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143 Unless otherwise specified, logs will be written to the filename |
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144 "<program name>.<hostname>.<user name>.log<suffix>.", |
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145 followed by the date, time, and pid (you can't prevent the date, |
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146 time, and pid from being in the filename). |
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147 |
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148 In this implementation : "hostname" and "username" are not used |
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149 **/ |
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150 |
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151 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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152 boost::filesystem::path root(directory); |
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153 boost::filesystem::path exe(Toolbox::GetPathToExecutable()); |
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154 |
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155 if (!boost::filesystem::exists(root) || |
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156 !boost::filesystem::is_directory(root)) |
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157 { |
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158 throw OrthancException(ErrorCode_CannotWriteFile); |
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159 } |
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160 |
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161 char date[64]; |
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162 sprintf(date, "%04d%02d%02d-%02d%02d%02d.%d", |
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163 static_cast<int>(now.date().year()), |
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164 now.date().month().as_number(), |
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165 now.date().day().as_number(), |
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166 now.time_of_day().hours(), |
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167 now.time_of_day().minutes(), |
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168 now.time_of_day().seconds(), |
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169 Toolbox::GetProcessId()); |
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170 |
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171 std::string programName = exe.filename().replace_extension("").string(); |
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172 |
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173 log = (root / (programName + ".log" + suffix + "." + std::string(date))); |
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174 link = (root / (programName + ".log" + suffix)); |
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175 } |
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176 |
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177 |
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178 static void PrepareLogFolder(std::auto_ptr<std::ofstream>& file, |
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179 const std::string& suffix, |
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180 const std::string& directory) |
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181 { |
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182 boost::filesystem::path log, link; |
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183 GetLogPath(log, link, suffix, directory); |
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184 |
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185 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) |
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186 boost::filesystem::remove(link); |
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187 boost::filesystem::create_symlink(log.filename(), link); |
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188 #endif |
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189 |
1494 | 190 file.reset(new std::ofstream(log.string().c_str())); |
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191 } |
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192 |
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193 |
1489 | 194 void Initialize() |
195 { | |
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196 boost::mutex::scoped_lock lock(loggingMutex_); |
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197 loggingContext_.reset(new LoggingContext); |
1489 | 198 } |
199 | |
200 void Finalize() | |
201 { | |
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202 boost::mutex::scoped_lock lock(loggingMutex_); |
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203 loggingContext_.reset(NULL); |
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204 } |
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205 |
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206 void Reset() |
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207 { |
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208 // Recover the old logging context |
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209 std::auto_ptr<LoggingContext> old; |
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210 |
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211 { |
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212 boost::mutex::scoped_lock lock(loggingMutex_); |
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213 if (loggingContext_.get() == NULL) |
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214 { |
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215 return; |
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216 } |
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217 else |
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218 { |
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219 old = loggingContext_; |
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220 |
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221 // Create a new logging context, |
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222 loggingContext_.reset(new LoggingContext); |
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223 } |
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224 } |
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225 |
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226 EnableInfoLevel(old->infoEnabled_); |
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227 EnableTraceLevel(old->traceEnabled_); |
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228 |
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229 if (!old->targetFolder_.empty()) |
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230 { |
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231 SetTargetFolder(old->targetFolder_); |
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232 } |
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233 else if (!old->targetFile_.empty()) |
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234 { |
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235 SetTargetFile(old->targetFile_); |
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236 } |
1489 | 237 } |
238 | |
239 void EnableInfoLevel(bool enabled) | |
240 { | |
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241 boost::mutex::scoped_lock lock(loggingMutex_); |
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242 assert(loggingContext_.get() != NULL); |
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243 |
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244 loggingContext_->infoEnabled_ = enabled; |
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245 |
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246 if (!enabled) |
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247 { |
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248 // Also disable the "TRACE" level when info-level debugging is disabled |
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249 loggingContext_->traceEnabled_ = false; |
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250 } |
1489 | 251 } |
252 | |
253 void EnableTraceLevel(bool enabled) | |
254 { | |
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255 boost::mutex::scoped_lock lock(loggingMutex_); |
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256 assert(loggingContext_.get() != NULL); |
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257 |
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258 loggingContext_->traceEnabled_ = enabled; |
1489 | 259 |
260 if (enabled) | |
261 { | |
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262 // Also enable the "INFO" level when trace-level debugging is enabled |
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263 loggingContext_->infoEnabled_ = true; |
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264 } |
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265 } |
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266 |
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267 |
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268 static void CheckFile(std::auto_ptr<std::ofstream>& f) |
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269 { |
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270 if (loggingContext_->file_.get() == NULL || |
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271 !loggingContext_->file_->is_open()) |
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272 { |
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273 throw OrthancException(ErrorCode_CannotWriteFile); |
1489 | 274 } |
275 } | |
276 | |
277 void SetTargetFolder(const std::string& path) | |
278 { | |
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279 boost::mutex::scoped_lock lock(loggingMutex_); |
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280 assert(loggingContext_.get() != NULL); |
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281 |
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282 PrepareLogFolder(loggingContext_->file_, "" /* no suffix */, path); |
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283 CheckFile(loggingContext_->file_); |
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284 |
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285 loggingContext_->targetFile_.clear(); |
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286 loggingContext_->targetFolder_ = path; |
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287 loggingContext_->warning_ = loggingContext_->file_.get(); |
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288 loggingContext_->error_ = loggingContext_->file_.get(); |
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289 loggingContext_->info_ = loggingContext_->file_.get(); |
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290 } |
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291 |
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292 |
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293 void SetTargetFile(const std::string& path) |
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294 { |
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295 boost::mutex::scoped_lock lock(loggingMutex_); |
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296 assert(loggingContext_.get() != NULL); |
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297 |
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298 loggingContext_->file_.reset(new std::ofstream(path.c_str(), std::fstream::app)); |
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299 CheckFile(loggingContext_->file_); |
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300 |
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301 loggingContext_->targetFile_ = path; |
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302 loggingContext_->targetFolder_.clear(); |
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303 loggingContext_->warning_ = loggingContext_->file_.get(); |
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304 loggingContext_->error_ = loggingContext_->file_.get(); |
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305 loggingContext_->info_ = loggingContext_->file_.get(); |
1489 | 306 } |
307 | |
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308 |
1489 | 309 InternalLogger::InternalLogger(const char* level, |
310 const char* file, | |
311 int line) : | |
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312 lock_(loggingMutex_), |
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313 stream_(&null_) // By default, logging to "/dev/null" is simulated |
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315 if (loggingContext_.get() == NULL) |
1489 | 316 { |
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317 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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318 return; |
1489 | 319 } |
320 | |
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321 try |
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322 { |
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323 LogLevel l = StringToLogLevel(level); |
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324 |
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325 if ((l == LogLevel_Info && !loggingContext_->infoEnabled_) || |
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326 (l == LogLevel_Trace && !loggingContext_->traceEnabled_)) |
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327 { |
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328 // This logging level is disabled, directly exit and unlock |
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329 // the mutex to speed-up things. The stream is set to "/dev/null" |
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330 lock_.unlock(); |
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331 return; |
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332 } |
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333 |
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334 // Compute the header of the line, temporary release the lock as |
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335 // this is a time-consuming operation |
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336 lock_.unlock(); |
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337 std::string header; |
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338 |
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339 { |
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340 boost::filesystem::path path(file); |
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341 boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); |
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342 boost::posix_time::time_duration duration = now.time_of_day(); |
1489 | 343 |
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344 /** |
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345 From Google Log documentation: |
1489 | 346 |
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347 "Log lines have this form: |
1489 | 348 |
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349 Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... |
1489 | 350 |
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351 where the fields are defined as follows: |
1489 | 352 |
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353 L A single character, representing the log level (eg 'I' for INFO) |
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354 mm The month (zero padded; ie May is '05') |
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355 dd The day (zero padded) |
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356 hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds |
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357 threadid The space-padded thread ID as returned by GetTID() (this matches the PID on Linux) |
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358 file The file name |
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359 line The line number |
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360 msg The user-supplied message" |
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361 |
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362 In this implementation, "threadid" is not printed. |
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363 **/ |
1489 | 364 |
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365 char date[32]; |
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366 sprintf(date, "%c%02d%02d %02d:%02d:%02d.%06d ", |
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367 level[0], |
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368 now.date().month().as_number(), |
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369 now.date().day().as_number(), |
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370 duration.hours(), |
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371 duration.minutes(), |
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372 duration.seconds(), |
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373 static_cast<int>(duration.fractional_seconds())); |
1489 | 374 |
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375 header = std::string(date) + path.filename().string() + ":" + boost::lexical_cast<std::string>(line) + "] "; |
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376 } |
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377 |
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378 |
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379 // The header is computed, we now re-lock the mutex to access |
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380 // the stream objects. Pay attention that "loggingContext_", |
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381 // "infoEnabled_" or "traceEnabled_" might have changed while |
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382 // the mutex was unlocked. |
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383 lock_.lock(); |
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384 |
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385 if (loggingContext_.get() == NULL) |
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386 { |
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387 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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388 return; |
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389 } |
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390 |
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391 switch (l) |
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392 { |
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393 case LogLevel_Error: |
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394 stream_ = loggingContext_->error_; |
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395 break; |
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396 |
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397 case LogLevel_Warning: |
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398 stream_ = loggingContext_->warning_; |
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399 break; |
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400 |
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401 case LogLevel_Info: |
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402 if (loggingContext_->infoEnabled_) |
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403 { |
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404 stream_ = loggingContext_->info_; |
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405 } |
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406 |
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407 break; |
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408 |
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409 case LogLevel_Trace: |
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410 if (loggingContext_->traceEnabled_) |
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411 { |
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412 stream_ = loggingContext_->info_; |
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413 } |
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414 |
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415 break; |
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416 |
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417 default: |
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418 throw OrthancException(ErrorCode_InternalError); |
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419 } |
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420 |
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421 if (stream_ == &null_) |
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422 { |
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423 // The logging is disabled for this level. The stream is the |
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424 // "null_" member of this object, so we can release the global |
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425 // mutex. |
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426 lock_.unlock(); |
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parents:
2015
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427 } |
1495
fbe40117eb21
improve the performance of the internal logger
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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428 |
2134
ddc75c6c712d
Avoid hard crash if not enough memory
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parents:
2015
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429 (*stream_) << header; |
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improve the performance of the internal logger
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parents:
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430 } |
2134
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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431 catch (...) |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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432 { |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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433 // Something is going really wrong, probably running out of |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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434 // memory. Fallback to a degraded mode. |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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435 stream_ = loggingContext_->error_; |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
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436 (*stream_) << "E???? ??:??:??.?????? ] "; |
ddc75c6c712d
Avoid hard crash if not enough memory
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2015
diff
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437 } |
1489 | 438 } |
1507 | 439 |
440 | |
441 InternalLogger::~InternalLogger() | |
442 { | |
443 if (stream_ != &null_) | |
444 { | |
445 #if defined(_WIN32) | |
446 *stream_ << "\r\n"; | |
447 #else | |
448 *stream_ << "\n"; | |
449 #endif | |
450 | |
451 stream_->flush(); | |
452 } | |
453 } | |
454 | |
455 | |
2015
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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456 void Flush() |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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457 { |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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458 boost::mutex::scoped_lock lock(loggingMutex_); |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
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parents:
2014
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459 |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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460 if (loggingContext_.get() != NULL && |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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461 loggingContext_->file_.get() != NULL) |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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462 { |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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463 loggingContext_->file_->flush(); |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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464 } |
bcc575732aef
New option "--logfile" to output the Orthanc log to the given file
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
2014
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465 } |
1485 | 466 } |
467 } | |
1488 | 468 |
1489 | 469 #endif // ORTHANC_ENABLE_LOGGING |