Mercurial > hg > orthanc
annotate Core/Logging.cpp @ 1754:3a4f7dc00f49 db-changes
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 28 Oct 2015 11:31:58 +0100 |
parents | b6f656a0bf2c |
children | b1291df2f780 |
rev | line source |
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1485 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics | |
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 } |
1485 | 49 |
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50 void EnableInfoLevel(bool enabled) |
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51 { |
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52 } |
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54 void EnableTraceLevel(bool enabled) |
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55 { |
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56 } |
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57 |
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58 void SetTargetFolder(const std::string& path) |
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59 { |
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60 } |
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61 } |
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62 } |
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63 |
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64 #elif ORTHANC_ENABLE_GOOGLE_LOG == 1 |
1489 | 65 |
66 /********************************************************* | |
67 * Wrapper around Google Log | |
68 *********************************************************/ | |
69 | |
1485 | 70 namespace Orthanc |
71 { | |
72 namespace Logging | |
73 { | |
74 void Initialize() | |
75 { | |
76 // Initialize Google's logging library. | |
77 FLAGS_logtostderr = true; | |
78 FLAGS_minloglevel = 1; // Do not print LOG(INFO) by default | |
79 FLAGS_v = 0; // Do not print trace-level VLOG(1) by default | |
80 | |
81 google::InitGoogleLogging("Orthanc"); | |
82 } | |
83 | |
84 void Finalize() | |
85 { | |
86 google::ShutdownGoogleLogging(); | |
87 } | |
88 | |
89 void EnableInfoLevel(bool enabled) | |
90 { | |
91 FLAGS_minloglevel = (enabled ? 0 : 1); | |
92 } | |
93 | |
94 void EnableTraceLevel(bool enabled) | |
95 { | |
96 if (enabled) | |
97 { | |
98 FLAGS_minloglevel = 0; | |
99 FLAGS_v = 1; | |
100 } | |
101 else | |
102 { | |
103 FLAGS_v = 0; | |
104 } | |
105 } | |
1489 | 106 |
107 void SetTargetFolder(const std::string& path) | |
108 { | |
109 FLAGS_logtostderr = false; | |
110 FLAGS_log_dir = path; | |
111 } | |
112 } | |
113 } | |
114 | |
115 #else | |
116 | |
117 /********************************************************* | |
118 * Use internal logger, not Google Log | |
119 *********************************************************/ | |
120 | |
121 #include "OrthancException.h" | |
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122 #include "Enumerations.h" |
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123 #include "Toolbox.h" |
1489 | 124 |
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125 #include <fstream> |
1489 | 126 #include <boost/filesystem.hpp> |
127 #include <boost/thread.hpp> | |
128 | |
129 #if BOOST_HAS_DATE_TIME == 1 | |
130 # include <boost/date_time/posix_time/posix_time.hpp> | |
131 #else | |
132 # error Boost::date_time is required | |
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133 #endif |
1489 | 134 |
135 | |
136 namespace | |
137 { | |
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138 struct LoggingState |
1489 | 139 { |
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140 bool infoEnabled_; |
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141 bool traceEnabled_; |
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142 |
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143 std::ostream* error_; |
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144 std::ostream* warning_; |
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145 std::ostream* info_; |
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146 |
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147 std::auto_ptr<std::ofstream> file_; |
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148 |
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149 LoggingState() : |
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150 infoEnabled_(false), |
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151 traceEnabled_(false), |
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152 error_(&std::cerr), |
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153 warning_(&std::cerr), |
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154 info_(&std::cerr) |
1489 | 155 { |
156 } | |
157 }; | |
158 } | |
159 | |
160 | |
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161 |
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162 static std::auto_ptr<LoggingState> loggingState_; |
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163 static boost::mutex loggingMutex_; |
1489 | 164 |
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165 |
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166 |
1489 | 167 namespace Orthanc |
168 { | |
169 namespace Logging | |
170 { | |
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171 static void GetLogPath(boost::filesystem::path& log, |
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172 boost::filesystem::path& link, |
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173 const std::string& suffix, |
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174 const std::string& directory) |
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175 { |
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176 /** |
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177 From Google Log documentation: |
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178 |
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179 Unless otherwise specified, logs will be written to the filename |
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180 "<program name>.<hostname>.<user name>.log<suffix>.", |
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181 followed by the date, time, and pid (you can't prevent the date, |
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182 time, and pid from being in the filename). |
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183 |
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184 In this implementation : "hostname" and "username" are not used |
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185 **/ |
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186 |
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187 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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188 boost::filesystem::path root(directory); |
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189 boost::filesystem::path exe(Toolbox::GetPathToExecutable()); |
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190 |
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191 if (!boost::filesystem::exists(root) || |
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192 !boost::filesystem::is_directory(root)) |
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193 { |
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194 throw OrthancException(ErrorCode_CannotWriteFile); |
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195 } |
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196 |
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197 char date[64]; |
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198 sprintf(date, "%04d%02d%02d-%02d%02d%02d.%d", |
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199 static_cast<int>(now.date().year()), |
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200 now.date().month().as_number(), |
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201 now.date().day().as_number(), |
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202 now.time_of_day().hours(), |
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203 now.time_of_day().minutes(), |
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204 now.time_of_day().seconds(), |
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205 Toolbox::GetProcessId()); |
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206 |
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207 std::string programName = exe.filename().replace_extension("").string(); |
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208 |
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209 log = (root / (programName + ".log" + suffix + "." + std::string(date))); |
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210 link = (root / (programName + ".log" + suffix)); |
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211 } |
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212 |
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213 |
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214 static void PrepareLogFile(std::auto_ptr<std::ofstream>& file, |
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215 const std::string& suffix, |
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216 const std::string& directory) |
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217 { |
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218 boost::filesystem::path log, link; |
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219 GetLogPath(log, link, suffix, directory); |
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220 |
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221 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) |
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222 boost::filesystem::remove(link); |
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223 boost::filesystem::create_symlink(log.filename(), link); |
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224 #endif |
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225 |
1494 | 226 file.reset(new std::ofstream(log.string().c_str())); |
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227 } |
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228 |
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229 |
1489 | 230 void Initialize() |
231 { | |
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232 boost::mutex::scoped_lock lock(loggingMutex_); |
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233 loggingState_.reset(new LoggingState); |
1489 | 234 } |
235 | |
236 void Finalize() | |
237 { | |
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238 boost::mutex::scoped_lock lock(loggingMutex_); |
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239 loggingState_.reset(NULL); |
1489 | 240 } |
241 | |
242 void EnableInfoLevel(bool enabled) | |
243 { | |
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244 boost::mutex::scoped_lock lock(loggingMutex_); |
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245 assert(loggingState_.get() != NULL); |
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246 |
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247 loggingState_->infoEnabled_ = enabled; |
1489 | 248 } |
249 | |
250 void EnableTraceLevel(bool enabled) | |
251 { | |
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252 boost::mutex::scoped_lock lock(loggingMutex_); |
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253 assert(loggingState_.get() != NULL); |
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254 |
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255 loggingState_->traceEnabled_ = enabled; |
1489 | 256 |
257 if (enabled) | |
258 { | |
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259 // Also enable the "INFO" level when trace-level debugging is enabled |
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260 loggingState_->infoEnabled_ = true; |
1489 | 261 } |
262 } | |
263 | |
264 void SetTargetFolder(const std::string& path) | |
265 { | |
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266 boost::mutex::scoped_lock lock(loggingMutex_); |
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267 assert(loggingState_.get() != NULL); |
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268 |
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269 PrepareLogFile(loggingState_->file_, "" /* no suffix */, path); |
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270 |
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271 loggingState_->warning_ = loggingState_->file_.get(); |
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272 loggingState_->error_ = loggingState_->file_.get(); |
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273 loggingState_->info_ = loggingState_->file_.get(); |
1489 | 274 } |
275 | |
276 InternalLogger::InternalLogger(const char* level, | |
277 const char* file, | |
278 int line) : | |
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279 lock_(loggingMutex_), |
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280 stream_(&null_) // By default, logging to "/dev/null" is simulated |
1489 | 281 { |
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282 if (loggingState_.get() == NULL) |
1489 | 283 { |
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284 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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285 return; |
1489 | 286 } |
287 | |
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288 LogLevel l = StringToLogLevel(level); |
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289 |
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290 if ((l == LogLevel_Info && !loggingState_->infoEnabled_) || |
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291 (l == LogLevel_Trace && !loggingState_->traceEnabled_)) |
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292 { |
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293 // This logging level is disabled, directly exit and unlock |
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294 // the mutex to speed-up things. The stream is set to "/dev/null" |
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295 lock_.unlock(); |
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296 return; |
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297 } |
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298 |
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299 // Compute the header of the line, temporary release the lock as |
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300 // this is a time-consuming operation |
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301 lock_.unlock(); |
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302 std::string header; |
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303 |
1489 | 304 { |
305 boost::filesystem::path path(file); | |
306 boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); | |
307 boost::posix_time::time_duration duration = now.time_of_day(); | |
308 | |
309 /** | |
310 From Google Log documentation: | |
311 | |
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312 "Log lines have this form: |
1489 | 313 |
314 Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... | |
315 | |
316 where the fields are defined as follows: | |
317 | |
318 L A single character, representing the log level (eg 'I' for INFO) | |
319 mm The month (zero padded; ie May is '05') | |
320 dd The day (zero padded) | |
321 hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds | |
322 threadid The space-padded thread ID as returned by GetTID() (this matches the PID on Linux) | |
323 file The file name | |
324 line The line number | |
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325 msg The user-supplied message" |
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326 |
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327 In this implementation, "threadid" is not printed. |
1489 | 328 **/ |
329 | |
330 char date[32]; | |
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331 sprintf(date, "%c%02d%02d %02d:%02d:%02d.%06d ", |
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332 level[0], |
1489 | 333 now.date().month().as_number(), |
334 now.date().day().as_number(), | |
335 duration.hours(), | |
336 duration.minutes(), | |
337 duration.seconds(), | |
338 static_cast<int>(duration.fractional_seconds())); | |
339 | |
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340 header = std::string(date) + path.filename().string() + ":" + boost::lexical_cast<std::string>(line) + "] "; |
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341 } |
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342 |
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343 |
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344 // The header is computed, we now re-lock the mutex to access |
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345 // the stream objects. Pay attention that "loggingState_", |
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346 // "infoEnabled_" or "traceEnabled_" might have changed while |
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347 // the mutex was unlocked. |
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348 lock_.lock(); |
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349 |
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350 if (loggingState_.get() == NULL) |
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351 { |
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352 fprintf(stderr, "ERROR: Trying to log a message after the finalization of the logging engine\n"); |
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353 return; |
1489 | 354 } |
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355 |
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356 switch (l) |
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357 { |
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358 case LogLevel_Error: |
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359 stream_ = loggingState_->error_; |
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360 break; |
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361 |
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362 case LogLevel_Warning: |
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363 stream_ = loggingState_->warning_; |
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364 break; |
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365 |
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366 case LogLevel_Info: |
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367 if (loggingState_->infoEnabled_) |
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368 { |
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369 stream_ = loggingState_->info_; |
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370 } |
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371 |
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372 break; |
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373 |
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374 case LogLevel_Trace: |
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375 if (loggingState_->traceEnabled_) |
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376 { |
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377 stream_ = loggingState_->info_; |
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378 } |
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379 |
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380 break; |
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381 |
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382 default: |
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383 throw OrthancException(ErrorCode_InternalError); |
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384 } |
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385 |
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parents:
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386 if (stream_ == &null_) |
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parents:
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387 { |
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parents:
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388 // The logging is disabled for this level. The stream is the |
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parents:
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389 // "null_" member of this object, so we can release the global |
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390 // mutex. |
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391 lock_.unlock(); |
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parents:
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392 } |
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parents:
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393 |
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parents:
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394 (*stream_) << header; |
1489 | 395 } |
1507 | 396 |
397 | |
398 InternalLogger::~InternalLogger() | |
399 { | |
400 if (stream_ != &null_) | |
401 { | |
402 #if defined(_WIN32) | |
403 *stream_ << "\r\n"; | |
404 #else | |
405 *stream_ << "\n"; | |
406 #endif | |
407 | |
408 stream_->flush(); | |
409 } | |
410 } | |
411 | |
412 | |
1485 | 413 } |
414 } | |
1488 | 415 |
1489 | 416 #endif // ORTHANC_ENABLE_LOGGING |