Logger Class Reference

Simple logger to log messages on file and console. More...

#include <logger.hpp>

Public Member Functions
void	print (const std::string &sourceFile, const int codeLine, const std::string &message)
	Method used to print messages.
void	setFile (const std::string &outputFile)
	Method to configure the logger.

Static Public Member Functions
static Logger &	getInstance ()
	Method to get a reference to the object (i.e., Singleton)

Private Member Functions
	Logger ()
	Constructor.
	~Logger ()
	Destructor.

Static Private Member Functions
static void	lock ()
	Method to lock in case of multithreading.
static void	unlock ()
	Method to unlock in case of multithreading.

Private Attributes
std::string	logFile_
	Initial part of the name of the file used for Logging.
std::ofstream	out_
	Stream used when logging on a file.
std::chrono::time_point < std::chrono::system_clock >	initialTime_
	Initial time (used to print relative times)

Static Private Attributes
static std::mutex	lock_
	Lock for mutual exclusion between different threads.
static Logger *	m_ = 0
	Pointer to the unique Logger (i.e., Singleton)

Detailed Description

Simple logger to log messages on file and console.

This is the implementation of a simple logger in C++. It is implemented as a Singleton, so it can be easily called through the DEBUG, WARNING and ERROR macros. It is Pthread-safe. It allows to log on both file and screen.

Example of configuration of the Logger: *

LOG_FILE("/tmp/myproject);

Example of usage of the Logger:

DEBUG("hello " << "world");

Definition at line 158 of file logger.hpp.

Constructor & Destructor Documentation

Logger ( )

private

Constructor.

It is a private constructor, called only by getInstance() and only the first time. It is called inside a lock, so lock inside this method is not required. It only initializes the initial time. All configuration is done inside the configure() method.

Definition at line 67 of file logger.cpp.

              :
                logFile_("")
{
        initialTime_ = std::chrono::system_clock::now();

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