Timer_callback Class Reference

A timer callback is basically a periodic event. More...

#include <timer.h>

Inherits List_node.

Inheritance diagram for Timer_callback:

[legend]Collaboration diagram for Timer_callback:

[legend]List of all members.

Public Member Functions
void	init (Timer_callback_func callback_function)
void	print ()
Public Attributes
Timer_callback_func	function
unsigned	period
unsigned	call_time
unsigned	cycles
void *	argument
bool	scheduled

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Detailed Description

A timer callback is basically a periodic event.

Every certain number of milliseconds, the timer invokes the callback.

This is useful for scheduling some sort of event that needs to happen a short time from now, without having to stop and wait until then. If the event only needs to happen once, then part of the event's callback function can involve unscheduling any further invocations of that event.

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Member Function Documentation

void Timer_callback::init (  Timer_callback_func  callback_function  )

void Timer_callback::print (   )

Print basic information about this timer callback.

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Member Data Documentation

void* Timer_callback::argument

argument supplied to the function

unsigned Timer_callback::call_time

time callback will be invoked

unsigned Timer_callback::cycles

number of periods completed

Timer_callback_func Timer_callback::function

the actual callback function

unsigned Timer_callback::period

milliseconds between invocations

bool Timer_callback::scheduled

whether this callback is scheduled

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

• timer.h
• timer.cc

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Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman