72 Zeilen
1.1 KiB
C++
72 Zeilen
1.1 KiB
C++
#ifndef LOGGER_H
|
|
#define LOGGER_H
|
|
#include <iostream>
|
|
#include <chrono>
|
|
class Logger
|
|
{
|
|
private:
|
|
class LogEntry
|
|
{
|
|
bool headerSent = false;
|
|
std::ostream *out = nullptr;
|
|
std::string prefix;
|
|
|
|
public:
|
|
LogEntry(std::ostream *out, std::string prefix) : out(out), prefix(prefix)
|
|
{
|
|
}
|
|
|
|
template <class T> LogEntry &operator<<(const T &val)
|
|
{
|
|
if(out == nullptr)
|
|
return *this;
|
|
if(!headerSent)
|
|
{
|
|
(*out) << time(0) << " " << prefix;
|
|
}
|
|
(*out) << val;
|
|
headerSent = true;
|
|
return *this; // or maybe out itself? probably not.
|
|
}
|
|
~LogEntry()
|
|
{
|
|
if(out != nullptr)
|
|
{
|
|
(*out) << std::endl;
|
|
(*out).flush();
|
|
}
|
|
}
|
|
};
|
|
|
|
public:
|
|
static std::ostream *out;
|
|
static int logLevel;
|
|
static void setStream(std::ostream *out)
|
|
{
|
|
Logger::out = out;
|
|
}
|
|
|
|
static LogEntry debug()
|
|
{
|
|
if(Logger::logLevel >= 3)
|
|
return LogEntry(out, "Debug: ");
|
|
|
|
return LogEntry(nullptr, "");
|
|
}
|
|
|
|
static LogEntry error()
|
|
{
|
|
return LogEntry(out, "Error: ");
|
|
}
|
|
|
|
static LogEntry log()
|
|
{
|
|
if(Logger::logLevel >= 2)
|
|
return LogEntry(out, "Log: ");
|
|
|
|
return LogEntry(nullptr, "");
|
|
}
|
|
};
|
|
|
|
#endif // LOGGER_H
|