Log the first length lines to a file. More...

Public Member Functions
	HeadFileLogHandler (const std::string &filePath, int length=2000)
	Initialize the head file handler on the file. File is opened directly on construction.
virtual	~HeadFileLogHandler ()
	Closes the file.
void	log (const qi::LogLevel verb, const qi::os::timeval date, const char category, const char msg, const char file, const char fct, const int line)
	Writes a log message to the file if it is part of the first length lines.

Detailed Description

Log the first length lines to a file.

This class writes the logs to a file, providing they are part of the first ``length`` lines.

Definition at line 20 of file headfileloghandler.hpp.

Constructor & Destructor Documentation

qi::log::HeadFileLogHandler::HeadFileLogHandler	(	const std::string &	filePath,
		int	length = `2000`
	)

Initialize the head file handler on the file. File is opened directly on construction.

Parameters:

filePath	path to the file.
length	number of messages that will be written to the file.

 * .. warning::
 *
 *      If the file could not be open, it logs a warning and every log call
 *      will fail silently.
 *

virtual qi::log::HeadFileLogHandler::~HeadFileLogHandler ( ) [virtual]

Closes the file.

qi::log::HeadFileLogHandler::log	(	const qi::LogLevel	verb,
		const qi::os::timeval	date,
		const char *	category,
		const char *	msg,
		const char *	file,
		const char *	fct,
		const int	line
	)

Writes a log message to the file if it is part of the first length lines.

Parameters:

verb	verbosity of the log message.
date	date at which the log message was issued.
category	will be used in future for filtering
msg	actual message to log.
file	filename from which this log message was issued.
fct	function name from which this log message was issued.
line	line number in the issuer file.

If the file could not be open, this function will fail silently, otherwise it will directly write the log message to the file and flush its output.

When ``length`` messages will be written to the file, it will discard all messages.

The documentation for this class was generated from the following files: