Clock Class Reference

A clock returns the time in different time domains. More...

#include <timer.h>

Public Member Functions
timevalue	time ()
timevalue	clock (timevalue freq, timevalue t_cur=0)
	Returns the current clock in freq-time.
timevalue	freq ()
	Frequency of the clock.
timevalue	abstime (timevalue thedelta, timevalue freq)
	Returns a timeout in absolute TSC time.
timevalue	delta (timevalue theabstime, timevalue freq)
	Returns a delta in another frequency domain from an absolute TSC value.
	Clock (timevalue source_freq)

Protected Attributes
timevalue	_source_freq

Detailed Description

A clock returns the time in different time domains.

The reference clock is the CPUs TSC.

Constructor & Destructor Documentation

Clock::Clock ( timevalue  source_freq )

inline

Member Function Documentation

timevalue Clock::abstime ( timevalue  thedelta, timevalue  freq  )

inline

Returns a timeout in absolute TSC time.

Parameters

thedelta	The timeout
freq	Scale of thedelta

The timeout equals to thedelta/freq seconds.

Example: abstime(5, 1000) returns the time of now plus 5 milliseconds.

timevalue Clock::clock ( timevalue  freq, timevalue  t_cur = 0  )

inline

Returns the current clock in freq-time.

timevalue Clock::delta ( timevalue  theabstime, timevalue  freq  )

inline

Returns a delta in another frequency domain from an absolute TSC value.

timevalue Clock::freq ( )

inline

Frequency of the clock.

timevalue Clock::time ( )

inline

Member Data Documentation

timevalue Clock::_source_freq

protected

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

• base/include/nul/timer.h