Alexander Afanasyev
b84cc92a8f
Log level can be controlled using NFD_LOG environment variable. The
following options are available
Set up log level using mnemonic
NFD_LOG=none|error|warn|info|debug|trace
Set up log level using log-level number (0 none, >=5 all)
NFD_LOG=0|1|2|3|4|5|6|...
Change-Id: Id38c2775f1137a4e38e4896963ab9a01fc863d2c
Refs: #1267
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
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/*
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* Copyright (C) 2014 Named Data Networking Project
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* See COPYING for copyright and distribution information.
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*
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* Author: Ilya Moiseenko <iliamo@ucla.edu>
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*/
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#ifndef NFD_CORE_LOGGER_HPP
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#define NFD_CORE_LOGGER_HPP
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#include "common.hpp"
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#include <iostream>
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namespace nfd {
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enum LogLevel {
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LOG_NONE = 0, // no messages
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LOG_ERROR = 1, // serious error messages
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LOG_WARN = 2, // warning messages
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LOG_INFO = 3, // informational messages
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LOG_DEBUG = 4, // debug messages
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LOG_TRACE = 5, // trace messages (most verbose)
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// LOG_FATAL is not a level and is logged unconditionally
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LOG_ALL = 255, // all messages
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};
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class Logger
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{
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public:
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explicit
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Logger(const std::string& name);
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bool
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isEnabled(LogLevel level)
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{
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return (m_enabledLogLevel >= level);
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}
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void
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setLogLevel(uint32_t level)
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{
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m_enabledLogLevel = static_cast<LogLevel>(level);
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}
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const std::string&
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getName() const
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{
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return m_moduleName;
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}
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private:
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std::string m_moduleName;
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uint32_t m_enabledLogLevel;
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};
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std::ostream&
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operator<<(std::ostream& output, const Logger& obj);
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#define NFD_LOG_INIT(name) \
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static nfd::Logger \
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g_logger = nfd::Logger(name);
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#define NFD_LOG_INCLASS_DECLARE() \
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static nfd::Logger g_logger;
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#define NFD_LOG_INCLASS_DEFINE(cls, name) \
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nfd::Logger cls::g_logger = nfd::Logger(name);
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#define NFD_LOG_INCLASS_TEMPLATE_DEFINE(cls, name) \
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template<class T> \
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nfd::Logger cls<T>::g_logger = nfd::Logger(name);
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#define NFD_LOG_INCLASS_TEMPLATE_SPECIALIZATION_DEFINE(cls, specialization, name) \
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template<> \
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nfd::Logger cls<specialization>::g_logger = nfd::Logger(name);
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#define NFD_LOG_INCLASS_2TEMPLATE_SPECIALIZATION_DEFINE(cls, s1, s2, name) \
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template<> \
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nfd::Logger cls<s1, s2>::g_logger = nfd::Logger(name);
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#define NFD_LOG_TRACE(expression) \
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if(g_logger.isEnabled(nfd::LOG_TRACE)) \
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std::cerr<<"TRACE: "<<"["<<g_logger<<"] " << expression << "\n"
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#define NFD_LOG_DEBUG(expression)\
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if(g_logger.isEnabled(nfd::LOG_DEBUG)) \
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std::cerr<<"DEBUG: "<<"["<<g_logger<<"] " << expression <<"\n"
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#define NFD_LOG_WARN(expression) \
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if(g_logger.isEnabled(nfd::LOG_WARN)) \
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std::cerr<<"WARNING: "<<"["<<g_logger<<"] " << expression <<"\n"
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#define NFD_LOG_INFO(expression)\
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if(g_logger.isEnabled(nfd::LOG_INFO)) \
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std::cerr<<"INFO: "<<"["<<g_logger<<"] " << expression <<"\n"
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#define NFD_LOG_ERROR(expression)\
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if(g_logger.isEnabled(nfd::LOG_ERROR)) \
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std::cerr<<"ERROR: "<<"["<<g_logger<<"] " << expression <<"\n"
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#define NFD_LOG_FATAL(expression)\
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std::cerr<<"FATAL: "<<"["<<g_logger<<"] " << expression <<"\n"
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} //namespace nfd
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#endif
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