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Timer Class Reference

#include <timer.h>

List of all members.

Public Methods

 Timer (VoidFunctionPtr timerHandler, int callArg, bool doRandom)
 ~Timer ()
void TimerExpired ()
int TimeOfNextInterrupt ()

Private Attributes

bool randomize
VoidFunctionPtr handler
int arg

Constructor & Destructor Documentation

Timer::Timer (  VoidFunctionPtr    timerHandler,
int    callArg,
bool    doRandom
) 
 

Definition at line 44 of file timer.cc.

References arg, handler, randomize, TimeOfNextInterrupt, TimerHandler, TimerInt, and VoidFunctionPtr. 

00045 {
00046     randomize = doRandom;
00047     handler = timerHandler;
00048     arg = callArg; 
00049 
00050     // schedule the first interrupt from the timer device
00051     interrupt->Schedule(TimerHandler, (int) this, TimeOfNextInterrupt(), 
00052                 TimerInt); 
00053 }

Timer::~Timer (    )  [inline]
 

Definition at line 32 of file timer.h. 

00032 {}

Member Function Documentation

int Timer::TimeOfNextInterrupt (    ) 
 

Definition at line 79 of file timer.cc.

References Random, and TimerTicks.

Referenced by Timer, and TimerExpired. 

00080 {
00081     if (randomize)
00082         return 1 + (Random() % (TimerTicks * 2));
00083     else
00084         return TimerTicks; 
00085 }

void Timer::TimerExpired (    ) 
 

Definition at line 62 of file timer.cc.

References TimeOfNextInterrupt, TimerHandler, and TimerInt.

Referenced by TimerHandler. 

00063 {
00064     // schedule the next timer device interrupt
00065     interrupt->Schedule(TimerHandler, (int) this, TimeOfNextInterrupt(), 
00066                 TimerInt);
00067 
00068     // invoke the Nachos interrupt handler for this device
00069     (*handler)(arg);
00070 }

Member Data Documentation

int Timer::arg [private]
 

Definition at line 45 of file timer.h.

Referenced by Timer.

VoidFunctionPtr Timer::handler [private]
 

Definition at line 44 of file timer.h.

Referenced by Timer.

bool Timer::randomize [private]
 

Definition at line 43 of file timer.h.

Referenced by Timer.

The documentation for this class was generated from the following files:
Generated on Mon Feb 10 09:54:59 2003 for nachos by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002
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