Lab 1 Program C

Dependents:   Lab1C

Fork of mbed by -deleted-

TimerEvent.h

Committer:
simon.ford@mbed.co.uk
Date:
2008-11-27
Revision:
4:5d1359a283bc
Parent:
3:aefd12a1f1c5
Child:
9:cf0d45ce28a6

File content as of revision 4:5d1359a283bc:

/* mbed Microcontroller Library - TimerEvent
 * Copyright (c) 2007-2008, sford
 */

#ifndef MBED_TIMEREVENT_H
#define MBED_TIMEREVENT_H

namespace mbed {

// Base abstraction for timer interrupts
class TimerEvent {

public:

	// The handler registered with the underlying timer interrupt
	static void irq();

	// Destruction removes it...	
	virtual ~TimerEvent();

protected:

	// The handler called to service the timer event of the derived class
	virtual void handler() = 0;
	
	// insert in to linked list
	void insert(unsigned int timestamp);
	
	// remove from linked list, if in it
	void remove();
	
	// Get the current usec timestamp
	static unsigned int timestamp();

	static TimerEvent *_head;   // The head of the list of the events, NULL if none
	TimerEvent *_next;          // Pointer to the next in the list, NULL if last
	unsigned int _timestamp;    // The timestamp at which the even should be triggered

};

}

#endif