Erik Frojdh ff9c37701b WIP
2020-03-04 12:35:41 +01:00

88 lines
2.8 KiB
C++

#pragma once
/*Utility to log to console*/
#include "ansi.h" //Colors
#include "logger.h"
#include <iostream>
#include <chrono>
#include <sstream>
#include <iomanip>
#include <map>
/*
Define the max level that is visible
The compiler should optimize away any calls below
this level
*/
#ifndef LOG_MAX_LEVEL
#define LOG_MAX_LEVEL logINFO
#endif
namespace sls {
class Logger {
std::ostringstream os;
TLogLevel level = LOG_MAX_LEVEL;
public:
Logger() = default;
Logger(TLogLevel level) : level(level){};
~Logger() {
// output happens in the destructor to allow for <<
os << Reset() << '\n';
std::clog << os.str(); // Single write
}
static TLogLevel &ReportingLevel() { // singelton eeh
static TLogLevel reportingLevel = logINFO;
return reportingLevel;
}
// Danger this buffer need as many elements as TLogLevel
static const char *Color(TLogLevel level) {
static const char *const colors[] = {
RED BOLD, YELLOW BOLD, RESET, BLUE, RED, RESET,
RESET, RESET, RESET, RESET, RESET, RESET};
return colors[level];
}
static const char *Reset() {
static const char *reset = RESET;
return reset;
}
// Danger this buffer need as many elements as TLogLevel
static std::string ToString(TLogLevel level) {
static const char *const buffer[] = {
"ERROR", "WARNING", "INFO", "INFO", "INFO", "INFO",
"DEBUG", "DEBUG1", "DEBUG2", "DEBUG3", "DEBUG4", "DEBUG5"};
return buffer[level];
}
std::ostringstream &Get() {
os << Color(level);
os << "- " << Time();
os << " " << ToString(level) << ": ";
return os;
}
std::string Time(decltype(std::chrono::system_clock::now()) now =
std::chrono::system_clock::now()) {
std::ostringstream oss;
auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(
now.time_since_epoch()) %
1000;
std::time_t now_time = std::chrono::system_clock::to_time_t(now);
oss << std::put_time(std::localtime(&now_time), "%H:%M:%S") << "."
<< std::setw(3) << std::setfill('0') << ms.count();
return oss.str();
}
};
#define LOG(level) \
if (level > LOG_MAX_LEVEL) \
; \
else if (level > sls::Logger::ReportingLevel()) \
; \
else \
sls::Logger(level).Get()
} // namespace sls