lokinet/include/llarp/logger.hpp
2018-08-09 04:28:55 -07:00

162 lines
3.7 KiB
C++

#ifndef LLARP_LOGGER_HPP
#define LLARP_LOGGER_HPP
#include <llarp/time.h>
#include <ctime>
#include <iomanip>
#include <iostream>
#include <llarp/threading.hpp>
#include <sstream>
#include <string>
#ifdef _WIN32
#define VC_EXTRALEAN
#include <windows.h>
#endif
#ifdef ANDROID
#include <android/log.h>
#endif
namespace llarp
{
// probably will need to move out of llarp namespace for c api
enum LogLevel
{
eLogDebug,
eLogInfo,
eLogWarn,
eLogError
};
struct Logger
{
std::string nodeName;
LogLevel minlevel = eLogInfo;
std::ostream& out;
std::mutex access;
Logger() : Logger(std::cout, "unnamed")
{
#ifdef _WIN32
DWORD mode_flags;
HANDLE fd1 = GetStdHandle(STD_OUTPUT_HANDLE);
GetConsoleMode(fd1, &mode_flags);
// since release SDKs don't have ANSI escape support yet
mode_flags |= 0x0004;
SetConsoleMode(fd1, mode_flags);
#endif
}
Logger(std::ostream& o, const std::string& name) : nodeName(name), out(o)
{
}
};
extern Logger _glog;
void
SetLogLevel(LogLevel lvl);
/** internal */
template < typename TArg >
void
LogAppend(std::stringstream& ss, TArg&& arg) noexcept
{
ss << std::forward< TArg >(arg);
}
/** internal */
template < typename TArg, typename... TArgs >
void
LogAppend(std::stringstream& ss, TArg&& arg, TArgs&&... args) noexcept
{
LogAppend(ss, std::forward< TArg >(arg));
LogAppend(ss, std::forward< TArgs >(args)...);
}
/** internal */
template < typename... TArgs >
void
_Log(LogLevel lvl, const char* fname, int lineno, TArgs&&... args) noexcept
{
if(_glog.minlevel > lvl)
return;
std::stringstream ss;
#ifdef ANDROID
switch(lvl)
{
case eLogDebug:
ss << "[DBG] ";
break;
case eLogInfo:
ss << "[NFO] ";
break;
case eLogWarn:
ss << "[WRN] ";
break;
case eLogError:
ss << "[ERR] ";
break;
}
#else
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;
}
#endif
std::string tag = fname;
ss << _glog.nodeName << " " << llarp_time_now_ms() << " " << tag << ":"
<< lineno;
ss << "\t";
LogAppend(ss, std::forward< TArgs >(args)...);
#ifndef ANDROID
ss << (char)27 << "[0;0m";
_glog.out << ss.str() << std::endl;
#else
{
std::unique_lock< std::mutex > lock(_glog.access);
__android_log_write(ANDROID_LOG_INFO, "LOKINET", ss.str().c_str());
_glog.out << ss.str() << std::endl;
}
#endif
#ifdef SHADOW_TESTNET
_glog.out << "\n" << std::flush;
#endif
}
} // namespace llarp
#define LogDebug(x, ...) \
_Log(llarp::eLogDebug, LOG_TAG, __LINE__, x, ##__VA_ARGS__)
#define LogInfo(x, ...) \
_Log(llarp::eLogInfo, LOG_TAG, __LINE__, x, ##__VA_ARGS__)
#define LogWarn(x, ...) \
_Log(llarp::eLogWarn, LOG_TAG, __LINE__, x, ##__VA_ARGS__)
#define LogError(x, ...) \
_Log(llarp::eLogError, LOG_TAG, __LINE__, x, ##__VA_ARGS__)
#define LogDebugTag(tag, x, ...) \
_Log(llarp::eLogDebug, tag, __LINE__, x, ##__VA_ARGS__)
#define LogInfoTag(tag, x, ...) \
_Log(llarp::eLogInfo, tag, __LINE__, x, ##__VA_ARGS__)
#define LogWarnTag(tag, x, ...) \
_Log(llarp::eLogWarn, tag, __LINE__, x, ##__VA_ARGS__)
#define LogErrorTag(tag, x, ...) \
_Log(llarp::eLogError, tag, __LINE__, x, ##__VA_ARGS__)
#ifndef LOG_TAG
#define LOG_TAG "default"
#endif
#endif