Timer Class Reference
[Operating system support]

Timer Class. More...

#include <timer.h>

List of all members.

Public Member Functions
Constructors and Destructors
	Timer ()
	Default constructor.
	Timer (Timer &timer)
	Copy constructor.
virtual	~Timer ()
	Destructor.
void	clear ()
	Clear and stop the timer.
bool	start ()
	Start the timer.
bool	stop ()
	Stop the timer.
void	reset ()
	Clear the timer without stopping.
Readout of the Timer
double	getClockTime () const
	Get clock time.
double	getUserTime () const
	Get user time.
double	getSystemTime () const
	Get user time.
double	getCPUTime () const
	Get CPU time.
Assignment
Timer &	operator= (const Timer &timer)
	Assignment operator.
Predicates
bool	isRunning () const
	Return true if the timer is running.
bool	operator== (const Timer &timer) const
	Equality operator.
bool	operator!= (const Timer &timer) const
	Inequality operator.
bool	operator< (const Timer &timer) const
	Lesser than operator.
bool	operator<= (const Timer &timer) const
	Lesser or equal operator.
bool	operator>= (const Timer &timer) const
	Greater or equal operator.
bool	operator> (const Timer &timer) const
	Greater operator.
Debugging and Diagnostics
bool	isValid () const
	Test if the instance is valid.
void	dump (::std::ostream &s=::std::cout, Size depth=0L) const
	Dump the timer's contents.

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Detailed Description

Timer Class.

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Constructor & Destructor Documentation

Timer::Timer (   )

Default constructor. Create a new timer. The timer is stopped.

Timer::Timer (  Timer &  timer  )

Copy constructor. Create a new timer from an existing timer.

virtual Timer::~Timer (   )  [virtual]

Destructor. Destructs a timer object.

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Member Function Documentation

void Timer::clear (   )

Clear and stop the timer. This sets the timer to zero and stops it when running. See also: reset

void Timer::dump (  ::std::ostream &  s = ::std::cout, Size  depth = 0L )  const

Dump the timer's contents.

double Timer::getClockTime (   )  const

Get clock time. Return the accumulated clock (real) time in seconds.

double Timer::getCPUTime (   )  const

Get CPU time. Return the accumulated CPU time in seconds. CPU time is the sum of user time and system time.

double Timer::getSystemTime (   )  const

Get user time. Return the accumulated system time in seconds.

double Timer::getUserTime (   )  const

Get user time. Return the accumulated user time in seconds.

bool Timer::isRunning (   )  const

Return true if the timer is running. Returns: bool true if the timer is running, false otherwise

bool Timer::isValid (   )  const

Test if the instance is valid. Allways returns true.

bool Timer::operator!= (  const Timer &  timer  )  const

Inequality operator. Return false if two timers differ in any way, i.e. they differ in either the clock, user, or system time or have a different running status. Parameters: timer  the timer to compare with Returns: bool true on inequality, false otherwise

bool Timer::operator< (  const Timer &  timer  )  const

Lesser than operator. Return true, if the timer is in all timings lesser than the timer to be compared with (clock, user and system time). Parameters: timer  the timer to compare with Returns: bool true if all times are lesser

bool Timer::operator<= (  const Timer &  timer  )  const

Lesser or equal operator. Return true, if the timer is in all timings lesser or equal than the timer to be compared with (clock, user and system time). Parameters: timer  the timer to compare with Returns: bool true if all times are lesser or equal

Timer& Timer::operator= (  const Timer &  timer  )

Assignment operator. Assigns a timer from another. The two timer will then run synchronously. Returns: Timer *this

bool Timer::operator== (  const Timer &  timer  )  const

Equality operator. Return true if two timers are equal, i.e. they contain exactly the same time intervals for clock, user and system time and have the same running status. Parameters: timer  the timer to compare with Returns: bool true on equality, false otherwise

bool Timer::operator> (  const Timer &  timer  )  const

Greater operator. Return true, if the timer is in all timings greater than the timer to be compared with (clock, user and system time). Parameters: timer  the timer to compare with Returns: bool true if all times are greater

bool Timer::operator>= (  const Timer &  timer  )  const

Greater or equal operator. Return true, if the timer is in all timings greater or equal than the timer to be compared with (clock, user and system time). Parameters: timer  the timer to compare with Returns: bool true if all times are greater or equal

void Timer::reset (   )

Clear the timer without stopping. The timer is cleared, but not stopped (if running). See also: clear

bool Timer::start (   )

Start the timer. The timer is started. If the timer is already running, false is returned. Returns: bool false if the timer was already running, true otherwise

bool Timer::stop (   )

Stop the timer. The timer is stopped. If the timer was not running, false is returned. Returns: bool false if the was not running, true otherwise