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97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
#ifndef LLARP_LOGGER_HPP
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#define LLARP_LOGGER_HPP
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#include <ctime>
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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#include <string>
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namespace llarp
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{
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enum LogLevel
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{
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eLogDebug,
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eLogInfo,
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eLogWarn,
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eLogError
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};
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struct Logger
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{
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LogLevel minlevel = eLogDebug;
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std::ostream& out = std::cout;
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};
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extern Logger _glog;
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void
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SetLogLevel(LogLevel lvl);
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/** internal */
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template < typename TArg >
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void
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LogAppend(std::stringstream& ss, TArg&& arg) noexcept
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{
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ss << std::forward< TArg >(arg);
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}
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/** internal */
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template < typename TArg, typename... TArgs >
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void
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LogAppend(std::stringstream& ss, TArg&& arg, TArgs&&... args) noexcept
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{
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LogAppend(ss, std::forward< TArg >(arg));
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LogAppend(ss, std::forward< TArgs >(args)...);
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}
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/** internal */
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template < typename... TArgs >
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void
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_Log(LogLevel lvl, const char* fname, TArgs&&... args) noexcept
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{
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if(_glog.minlevel > lvl)
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return;
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std::stringstream ss("");
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switch(lvl)
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{
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case eLogDebug:
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ss << (char)27 << "[0m";
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ss << "[DBG] ";
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break;
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case eLogInfo:
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ss << (char)27 << "[1m";
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ss << "[NFO] ";
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break;
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case eLogWarn:
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ss << (char)27 << "[1;33m";
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ss << "[WRN] ";
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break;
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case eLogError:
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ss << (char)27 << "[1;31m";
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ss << "[ERR] ";
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break;
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}
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auto t = std::time(nullptr);
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auto now = std::localtime(&t);
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std::string tag = fname;
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auto pos = tag.rfind('/');
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if(pos != std::string::npos)
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tag = tag.substr(pos + 1);
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while(tag.size() % 8)
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tag += " ";
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ss << std::put_time(now, "%F %T") << " " << tag << "\t";
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LogAppend(ss, std::forward< TArgs >(args)...);
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ss << (char)27 << "[0;0m";
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_glog.out << ss.str() << std::endl;
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}
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}
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#define Debug(x, ...) _Log(llarp::eLogDebug, __FILE__, x, ##__VA_ARGS__)
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#define Info(x, ...) _Log(llarp::eLogInfo, __FILE__, x, ##__VA_ARGS__)
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#define Warn(x, ...) _Log(llarp::eLogWarn, __FILE__, x, ##__VA_ARGS__)
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#define Error(x, ...) _Log(llarp::eLogError, __FILE__, x, ##__VA_ARGS__)
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#endif
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