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lokinet/include/llarp/logger.hpp

112 lines
2.2 KiB
C++

#ifndef LLARP_LOGGER_HPP
#define LLARP_LOGGER_HPP
#include <ctime>
#include <iomanip>
#include <iostream>
#include <sstream>
namespace llarp
{
enum LogLevel
{
eLogDebug,
eLogInfo,
eLogWarn,
eLogError
};
struct Logger
{
LogLevel minlevel = eLogDebug;
std::ostream& out = std::cout;
};
extern Logger _glog;
void
SetLogLevel(LogLevel lvl);
/** internal */
template < typename TArg >
void
LogAppend(std::stringstream& ss, TArg&& arg)
{
ss << std::forward< TArg >(arg);
}
/** internal */
template < typename TArg, typename... TArgs >
void
LogAppend(std::stringstream& ss, TArg&& arg, TArgs&&... args)
{
LogAppend(ss, std::forward< TArg >(arg));
LogAppend(ss, std::forward< TArgs >(args)...);
}
/** internal */
template < typename... TArgs >
void
Log(LogLevel lvl, const char* tag, TArgs&&... args)
{
if(_glog.minlevel > lvl)
return;
std::stringstream ss;
switch(lvl)
{
case eLogDebug:
ss << (char)27 << "[0m";
ss << "[DBG] ";
break;
case eLogInfo:
ss << (char)27 << "[1m";
ss << "[NFO] ";
break;
case eLogWarn:
ss << (char)27 << "[1;33m";
ss << "[WRN] ";
break;
case eLogError:
ss << (char)27 << "[1;31m";
ss << "[ERR] ";
break;
}
auto t = std::time(nullptr);
auto now = std::localtime(&t);
ss << std::put_time(now, "%F %T") << " " << tag << "\t";
LogAppend(ss, std::forward< TArgs >(args)...);
ss << (char)27 << "[0;0m";
_glog.out << ss.str() << std::endl;
}
template < typename... TArgs >
void
Debug(const char* tag, TArgs&&... args)
{
Log(eLogDebug, tag, std::forward< TArgs >(args)...);
}
template < typename... TArgs >
void
Info(const char* tag, TArgs&&... args)
{
Log(eLogInfo, tag, std::forward< TArgs >(args)...);
}
template < typename... TArgs >
void
Warn(const char* tag, TArgs&&... args)
{
Log(eLogWarn, tag, std::forward< TArgs >(args)...);
}
template < typename... TArgs >
void
Error(const char* tag, TArgs&&... args)
{
Log(eLogError, tag, std::forward< TArgs >(args)...);
}
}
#endif