StopWatch Class Reference

Defines a general purpose timer based on the C time function. More...

#include "util/stop_watch.h"

Public Member Functions
	StopWatch ()
	Creates a StopWatch object and starts it at the current time.
void	start ()
	Restarts the StopWatch to the current time.
double	lap ()
	Reports the number of seconds since either the StopWatch was instantiated, start(), or lap() was last called, whichever is more recent.
double	time ()
	Reports the number of seconds since either the StopWatch was instantiated or start() was last called, whichever is more recent.
void	print_lap (std::ostream &out, std::string prefix="", std::string postfix="")
	Prints the current lap time, prefixing with the string passed in prefix (defaults to empty) and postfixing with the string passed in postfix (defaults to empty), to the output stream passed as out. If only one string is passed, it is assumed to be the prefix.
void	print_time (std::ostream &out, std::string prefix="", std::string postfix="")
	Prints the current elapsed time, prefixing with the string passed in prefix (defaults to empty) and postfixing with the string passed in postfix (defaults to empty), to the output stream passed as out. If only one string is passed, it is assumed to be the prefix.

Private Attributes
time_t	start_time
time_t	stop_time
time_t	lap_time

Detailed Description

This permits 1s precision dynamical performance reporting within Themis via a modular object that encapsulates the C time function details. Implemented functions include time(), which reports total elapsed time since start(), lap() which reports elapsed time since either start or the previous lap(), and print functions for each of these.

Warning

This is subject to the same limitations as the C time function, and is therefore only appropriate for time measurements in excess of 1s, and is typically useful only for measuring events taking many seconds.

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

• util/stop_watch.h
• util/stop_watch.cpp