mirror of https://github.com/PurpleI2P/i2pd.git
hagen
8 years ago
8 changed files with 309 additions and 320 deletions
@ -1,133 +1,160 @@
@@ -1,133 +1,160 @@
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#include <boost/date_time/posix_time/posix_time.hpp> |
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#include "Log.h" |
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/*
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* Copyright (c) 2013-2016, The PurpleI2P Project |
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* |
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* This file is part of Purple i2pd project and licensed under BSD3 |
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* |
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* See full license text in LICENSE file at top of project tree |
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*/ |
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Log * g_Log = nullptr; |
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#include "Log.h" |
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static const char * g_LogLevelStr[eNumLogLevels] = |
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{ |
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"error", // eLogError
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"warn", // eLogWarning
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"info", // eLogInfo
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"debug" // eLogDebug
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}; |
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#ifndef _WIN32 |
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/** convert LogLevel enum to syslog priority level */ |
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static int ToSyslogLevel(LogLevel lvl) |
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{ |
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switch (lvl) { |
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case eLogError: |
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return LOG_ERR; |
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case eLogWarning: |
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return LOG_WARNING; |
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case eLogInfo: |
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return LOG_INFO; |
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case eLogDebug: |
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return LOG_DEBUG; |
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default: |
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// WTF? invalid log level?
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return LOG_CRIT; |
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} |
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} |
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#endif |
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namespace i2p { |
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namespace log { |
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Log logger; |
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/**
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* @enum Maps our loglevel to their symbolic name |
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*/ |
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static const char * g_LogLevelStr[eNumLogLevels] = |
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{ |
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"error", // eLogError
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"warn", // eLogWarn
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"info", // eLogInfo
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"debug" // eLogDebug
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}; |
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void LogMsg::Process() |
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{ |
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#ifndef _WIN32 |
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if (log && log->SyslogEnabled()) { |
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// only log to syslog
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syslog(ToSyslogLevel(level), "%s", s.str().c_str()); |
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return; |
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} |
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/**
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* @brief Maps our log levels to syslog one |
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* @return syslog priority LOG_*, as defined in syslog.h |
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*/ |
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static inline int GetSyslogPrio (enum LogLevel l) { |
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int priority = LOG_DEBUG; |
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switch (l) { |
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case eLogError : priority = LOG_ERR; break; |
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case eLogWarning : priority = LOG_WARNING; break; |
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case eLogInfo : priority = LOG_INFO; break; |
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case eLogDebug : priority = LOG_DEBUG; break; |
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default : priority = LOG_DEBUG; break; |
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} |
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return priority; |
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} |
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#endif |
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auto stream = log ? log->GetLogStream () : nullptr; |
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auto& output = stream ? *stream : std::cout; |
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if (log) |
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output << log->GetTimestamp (); |
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else |
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output << boost::posix_time::second_clock::local_time().time_of_day (); |
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output << "/" << g_LogLevelStr[level] << " - "; |
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output << s.str(); |
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} |
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const std::string& Log::GetTimestamp () |
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{ |
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#if (__GNUC__ == 4) && (__GNUC_MINOR__ <= 6) && !defined(__clang__) |
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auto ts = std::chrono::monotonic_clock::now (); |
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#else |
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auto ts = std::chrono::steady_clock::now (); |
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#endif |
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if (ts > m_LastTimestampUpdate + std::chrono::milliseconds (500)) // 0.5 second
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Log::Log(): |
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m_Destination(eLogStdout), m_MinLevel(eLogInfo), |
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m_LogStream (nullptr), m_Logfile(""), m_IsReady(false) |
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{ |
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m_LastTimestampUpdate = ts; |
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m_Timestamp = boost::posix_time::to_simple_string (boost::posix_time::second_clock::local_time().time_of_day ()); |
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} |
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return m_Timestamp; |
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} |
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void Log::Flush () |
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{ |
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if (m_LogStream) |
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m_LogStream->flush(); |
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} |
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} |
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void Log::SetLogFile (const std::string& fullFilePath, bool truncate) |
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{ |
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m_FullFilePath = fullFilePath; |
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auto mode = std::ofstream::out | std::ofstream::binary; |
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mode |= truncate ? std::ofstream::trunc : std::ofstream::app; |
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auto logFile = std::make_shared<std::ofstream> (fullFilePath, mode); |
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if (logFile->is_open ()) |
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Log::~Log () |
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{ |
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SetLogStream (logFile); |
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LogPrint(eLogInfo, "Log: will send messages to ", fullFilePath); |
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} |
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} |
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switch (m_Destination) { |
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#ifndef _WIN32 |
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case eLogSyslog : |
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closelog(); |
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break; |
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#endif |
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case eLogFile: |
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case eLogStream: |
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m_LogStream->flush(); |
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break; |
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default: |
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/* do nothing */ |
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break; |
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} |
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Process(); |
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} |
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void Log::ReopenLogFile () |
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{ |
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if (m_FullFilePath.length () > 0) |
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{ |
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SetLogFile (m_FullFilePath, false); // don't truncate
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LogPrint(eLogInfo, "Log: file ", m_FullFilePath, " reopen"); |
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void Log::SetLogLevel (const std::string& level) { |
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if (level == "error") { m_MinLevel = eLogError; } |
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else if (level == "warn") { m_MinLevel = eLogWarning; } |
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else if (level == "info") { m_MinLevel = eLogInfo; } |
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else if (level == "debug") { m_MinLevel = eLogDebug; } |
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else { |
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LogPrint(eLogError, "Log: unknown loglevel: ", level); |
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return; |
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} |
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LogPrint(eLogInfo, "Log: min messages level set to ", level); |
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} |
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const char * Log::TimeAsString(std::time_t t) { |
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if (t != m_LastTimestamp) { |
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strftime(m_LastDateTime, sizeof(m_LastDateTime), "%H:%M:%S", localtime(&t)); |
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m_LastTimestamp = t; |
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} |
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return m_LastDateTime; |
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} |
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} |
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/**
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* @note This function better to be run in separate thread due to disk i/o. |
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* Unfortunately, with current startup process with late fork() this |
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* will give us nothing but pain. Maybe later. See in NetDb as example. |
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*/ |
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void Log::Process() { |
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std::unique_lock<std::mutex> l(m_OutputLock); |
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while (1) { |
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auto msg = m_Queue.GetNextWithTimeout (1); |
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if (!msg) |
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break; |
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switch (m_Destination) { |
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#ifndef _WIN32 |
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case eLogSyslog: |
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syslog(GetSyslogPrio(msg->level), "%s", msg->text.c_str()); |
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break; |
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#endif |
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case eLogFile: |
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case eLogStream: |
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*m_LogStream << TimeAsString(msg->timestamp) << "/" << g_LogLevelStr[msg->level] << " - " << msg->text << std::endl; |
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break; |
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default: |
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std::cout << TimeAsString(msg->timestamp) << "/" << g_LogLevelStr[msg->level] << " - " << msg->text << std::endl; |
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break; |
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} // switch
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} // while
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} |
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void Log::SetLogLevel (const std::string& level) |
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{ |
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if (level == "error") { m_MinLevel = eLogError; } |
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else if (level == "warn") { m_MinLevel = eLogWarning; } |
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else if (level == "info") { m_MinLevel = eLogInfo; } |
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else if (level == "debug") { m_MinLevel = eLogDebug; } |
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else { |
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LogPrint(eLogError, "Log: Unknown loglevel: ", level); |
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return; |
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} |
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LogPrint(eLogInfo, "Log: min msg level set to ", level); |
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} |
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void Log::Append(std::shared_ptr<i2p::log::LogMsg> & msg) { |
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m_Queue.Put(msg); |
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if (!m_IsReady) |
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return; |
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Process(); |
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} |
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void Log::SetLogStream (std::shared_ptr<std::ostream> logStream) |
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{ |
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m_LogStream = logStream; |
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} |
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void Log::SendTo (const std::string& path) { |
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auto flags = std::ofstream::out | std::ofstream::app; |
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auto os = std::make_shared<std::ofstream> (path, flags); |
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if (os->is_open ()) { |
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m_Logfile = path; |
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m_Destination = eLogFile; |
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m_LogStream = os; |
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m_IsReady = true; |
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return; |
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} |
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LogPrint(eLogError, "Log: can't open file ", path); |
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} |
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void Log::StartSyslog(const std::string & ident, const int facility) |
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{ |
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#ifndef _WIN32 |
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m_Ident = ident; |
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openlog(m_Ident.c_str(), LOG_PID, facility); |
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#endif |
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} |
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void Log::SendTo (std::shared_ptr<std::ostream> os) { |
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m_Destination = eLogStream; |
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m_IsReady = true; |
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m_LogStream = os; |
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} |
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void Log::StopSyslog() |
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{ |
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#ifndef _WIN32 |
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closelog(); |
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m_Ident.clear(); |
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void Log::SendTo(const char *name, int facility) { |
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m_Destination = eLogSyslog; |
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m_LogStream = nullptr; |
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m_IsReady = true; |
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openlog(name, LOG_CONS | LOG_PID, facility); |
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} |
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#endif |
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} |
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bool Log::SyslogEnabled() |
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{ |
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return m_Ident.size() > 0; |
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} |
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void Log::Reopen() { |
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if (m_Destination == eLogFile) |
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SendTo(m_Logfile); |
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} |
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Log & Logger() { |
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return logger; |
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} |
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} // log
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} // i2p
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