RTB::TimeStamp Class Reference

#include <TimeStamp.h>

Public Member Functions
void	getTimeStamp (long &lSeconds, long &lNanoSeconds)
void	operator+= (double TimeS)
	Increase the timestamp by TimeS seconds. More...
double	operator- (const TimeStamp &EarlierTime) const
	Retrieves time difference in seconds. More...
void	operator-= (double TimeS)
	Reduces the timestamp by TimeS seconds. More...
bool	operator< (const TimeStamp &Time)
	Checks if this time is before time "Time". More...
bool	operator> (const TimeStamp &Time)
	Checks if this time is after time "Time". More...
void	SetNow ()
	Makes time measurement. More...
void	setTimeStamp (const long &lSeconds, const long &lNanoSeconds)
	TimeStamp ()
	Constructor. More...
virtual	~TimeStamp ()
	Destructor. More...

Protected Attributes
LARGE_INTEGER	m_TimeStamp
	Internal time stamp data. More...

Static Private Member Functions
static LARGE_INTEGER	DoubleToLargeInt (double TimeS)
	Conversion double -> LARGE_INTEGER. More...
static double	LargeIntToDouble (const LARGE_INTEGER &LargeInt)
	Conversion timespec -> double. More...

Static Private Attributes
static double	m_DwordSize = double(0xFFFFFFFF)
	Size of a Dword field. More...
static double	m_SecPerCount = 1.0 / TimeStamp::LargeIntToDouble(ClockFrequency)
	Seconds per counts. More...

Detailed Description

Measure system time with very high accuracy. Use this class for measure system time accurately. Under Windows, it uses QueryPerformanceCounter(), which has a resolution of approx. one micro-second. The difference between two time stamps can be calculated.

Definition at line 42 of file TimeStamp.h.

Constructor & Destructor Documentation

RTB::TimeStamp::TimeStamp

(

)

Constructor.

Definition at line 142 of file TimeStamp.cpp.

virtual RTB::TimeStamp::~TimeStamp ( )

inlinevirtual

Destructor.

Definition at line 49 of file TimeStamp.h.

Member Function Documentation

LARGE_INTEGER RTB::TimeStamp::DoubleToLargeInt ( double  TimeS )

staticprivate

Conversion double -> LARGE_INTEGER.

Definition at line 158 of file TimeStamp.cpp.

void RTB::TimeStamp::getTimeStamp	(	long &	lSeconds,
		long &	lNanoSeconds
	)

Gets seconds and nanoseconds of the timestamp.

double RTB::TimeStamp::LargeIntToDouble ( const LARGE_INTEGER &  LargeInt )

staticprivate

Conversion timespec -> double.

Definition at line 153 of file TimeStamp.cpp.

void RTB::TimeStamp::operator+=

(

double

TimeS

)

Increase the timestamp by TimeS seconds.

Parameters

TimeS

must be >0!.

Definition at line 179 of file TimeStamp.cpp.

double RTB::TimeStamp::operator-

(

const TimeStamp &

EarlierTime

)

const

Retrieves time difference in seconds.

Definition at line 169 of file TimeStamp.cpp.

void RTB::TimeStamp::operator-=

(

double

TimeS

)

Reduces the timestamp by TimeS seconds.

Parameters

TimeS

must be >0!.

Definition at line 189 of file TimeStamp.cpp.

bool RTB::TimeStamp::operator<

(

const TimeStamp &

Time

)

Checks if this time is before time "Time".

Definition at line 210 of file TimeStamp.cpp.

bool RTB::TimeStamp::operator>

(

const TimeStamp &

Time

)

Checks if this time is after time "Time".

Definition at line 201 of file TimeStamp.cpp.

void RTB::TimeStamp::SetNow

(

)

Makes time measurement.

Definition at line 148 of file TimeStamp.cpp.

void RTB::TimeStamp::setTimeStamp	(	const long &	lSeconds,
		const long &	lNanoSeconds
	)

Sets timestamp from seconds and nanoseconds.

Member Data Documentation

double RTB::TimeStamp::m_DwordSize = double(0xFFFFFFFF)

staticprivate

Size of a Dword field.

Definition at line 105 of file TimeStamp.h.

double RTB::TimeStamp::m_SecPerCount = 1.0 / TimeStamp::LargeIntToDouble(ClockFrequency)

staticprivate

Seconds per counts.

Definition at line 108 of file TimeStamp.h.

LARGE_INTEGER RTB::TimeStamp::m_TimeStamp

protected

Internal time stamp data.

Definition at line 88 of file TimeStamp.h.

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

• TimeStamp.h
• TimeStamp.cpp