Class for logging messages. More...

#include <dynamic-graph/logger.h>

Public Member Functions
	Logger (double timeSample=0.001, double streamPrintPeriod=1.0)

	~Logger ()

void	countdown ()

double	getStreamPrintPeriod ()

double	getTimeSample ()

LoggerVerbosity	getVerbosity ()

void	sendMsg (std::string msg, MsgType type, const std::string &file, int line)

void	sendMsg (std::string msg, MsgType type, const std::string &lineId="")

bool	setStreamPrintPeriod (double s)

bool	setTimeSample (double t)

void	setVerbosity (LoggerVerbosity lv)

RTLoggerStream	stream ()

RTLoggerStream	stream (MsgType type, const std::string &lineId="")

Protected Types
typedef std::map< std::string, double >	StreamCounterMap_t
	every time this is < 0 (i.e. every _streamPrintPeriod sec) print stuff

Protected Member Functions
bool	acceptMsg (MsgType m, const std::string &lineId)

bool	checkStreamPeriod (const std::string &lineId)

bool	isStreamMsg (MsgType m)

Protected Attributes
LoggerVerbosity	m_lv

double	m_printCountdown
	specify the time period of the stream prints

StreamCounterMap_t	m_stream_msg_counters

double	m_streamPrintPeriod
	specify the period of call of the countdown method

double	m_timeSample
	verbosity of the logger

Detailed Description

Class for logging messages.

It is intended to be used like this:

#define ENABLE_RT_LOG
#include <dynamic-graph/real-time-logger.h>
 
// Somewhere in the main function of your executable
int main (int argc, char** argv) {
  std::ofstream of;
  of.open("/tmp/dg-LOGS.txt",std::ofstream::out|std::ofstream::app);
  dgADD_OSTREAM_TO_RTLOG (of);
}
 
// Somewhere in your library
dynamicgraph::LoggerVerbosity aLoggerVerbosityLevel =
  VERBOSITY_WARNING_ERROR;
entity.setLoggerVerbosityLevel(aLoggerVerbosityLevel);
...
// using macros
DYNAMIC_GRAPH_ENTITY_WARNING(entity) << "your message\n";
 
// or the equivalent code without macros:
// Please use '\n' instead of std::endl and flushing will have no effect
entity.logger.stream(dynamicgraph::MSG_TYPE_WARNING,
                     __FILE__ BOOST_PP_STRINGIZE(__LINE__))
  << your message << '\n';

Todo:: remove m_timeSample and streamPrintPeriod to rather use a simple integer counting the number of calls. This will achieve exactly the same behaviour without rouding numerical errors.

Definition at line 186 of file logger.h.

Constructor & Destructor Documentation

◆ Logger()

Logger	(	double	timeSample = `0.001`,
		double	streamPrintPeriod = `1.0`
	)

Constructor

◆ ~Logger()

~Logger ( )

Destructor

Member Function Documentation

◆ acceptMsg()

bool acceptMsg	(	MsgType	m,
		const std::string &	lineId
	)

inlineprotected

Check whether a message of type m and from c lineId should be accepted.

Note: If m is a stream type, the internal counter associated to lineId is updated.

Definition at line 272 of file logger.h.

◆ checkStreamPeriod()

bool checkStreamPeriod ( const std::string & lineId )

protected

Check whether a message from lineId should be accepted.

Note: The internal counter associated to lineId is updated.

◆ countdown()

void countdown ( )

Method to be called at every control iteration to decrement the internal Logger's counter.

◆ getStreamPrintPeriod()

double getStreamPrintPeriod ( )

Get the time period for printing of streaming messages.

◆ getTimeSample()

double getTimeSample ( )

Get the sampling time at which the method countdown() is going to be called.

◆ getVerbosity()

LoggerVerbosity getVerbosity ( )

Get the verbosity level of the logger.

◆ sendMsg() [1/2]

void sendMsg	(	std::string	msg,
		MsgType	type,
		const std::string &	file,
		int	line
	)

Deprecated:: instead, use

stream(type, lineId) << msg << '\n';

◆ sendMsg() [2/2]

void sendMsg	(	std::string	msg,
		MsgType	type,
		const std::string &	lineId = `""`
	)

Deprecated:: instead, use

stream(type, lineId) << msg << '\n';

◆ setStreamPrintPeriod()

bool setStreamPrintPeriod ( double s )

Set the time period for printing of streaming messages.

◆ setTimeSample()

bool setTimeSample ( double t )

Set the sampling time at which the method countdown() is going to be called.

◆ setVerbosity()

void setVerbosity ( LoggerVerbosity lv )

Set the verbosity level of the logger.

◆ stream() [1/2]

RTLoggerStream stream ( )

inline

Get an output stream independently of the debug level.

Definition at line 200 of file logger.h.

◆ stream() [2/2]

RTLoggerStream stream	(	MsgType	type,
		const std::string &	lineId = `""`
	)

inline

Print the specified message on standard output if the verbosity level allows it. The lineId is used to identify the point where sendMsg is called so that streaming messages are printed only every streamPrintPeriod iterations.

Parameters

type	specifies the verbosity level, for instance MSG_TYPE_DEBUG
lineId	typically FILE ":" BOOST_PP_STRINGIZE(LINE)

Definition at line 211 of file logger.h.

Member Data Documentation

◆ m_stream_msg_counters

StreamCounterMap_t m_stream_msg_counters