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--Copyright: Matra Datavision 1992,1993
-- File: OSD_Timer.cdl
-- Created: Tue 18 1992
-- Author: Stephan GARNAUD (ARM)
-- <sga@sparc4>
-- Updated: J.P. TIRAULT Sept,1993
--
class Timer from OSD inherits Chronometer from OSD
---Purpose: Working on heterogeneous platforms
-- we need to use the system call gettimeofday.
-- This function is portable and it measures ELAPSED
-- time and CPU time in seconds and microseconds.
-- Example: OSD_Timer aTimer;
-- aTimer.Start(); // Start the timers (t1).
-- ..... // Do something.
-- aTimer.Stop(); // Stop the timers (t2).
-- aTimer.Show(); // Give the elapsed time between t1 and t2.
-- // Give also the process CPU time between
-- // t1 and t2.
is
Create returns Timer from OSD;
---Purpose: Builds a Chronometer initialized and stopped.
---Level: Public
Reset (me : in out) is redefined;
---Purpose: Stops and reinitializes the timer.
---Level: Public
Show (me : in out) is redefined;
---Purpose: Shows both the elapsed time and CPU time on the standard output
-- stream <cout>.The chronometer can be running (Lap Time) or
-- stopped.
---Level: Public
Show (me : in out; os : in out OStream from Standard) is redefined;
---Purpose: Shows both the elapsed time and CPU time on the
-- output stream <OS>.
---Level: Public
Show (me : in out; seconds : in out Real from Standard;
minutes : in out Integer from Standard;
hours : in out Integer from Standard;
CPUtime : in out Real from Standard);
---Purpose: returns both the elapsed time(seconds,minutes,hours)
-- and CPU time.
---Level: Public
Stop (me : in out) is redefined;
---Purpose: Stops the Timer.
---Level: Public
Start (me : in out) is redefined;
---Purpose: Starts (after Create or Reset) or restarts (after Stop)
-- the Timer.
---Level: Public
fields
TimeStart : Real;
TimeCumul : Real;
end;
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