watchdog_active.java

real-time design patterns in Real-time java

package designPatterns.Watchdog;

import designPatterns.Fsm.GenericFsm;

public class Watchdog_active extends WatchdogState {
	/*
	 * Mandatory methods
	 */
	public void entryAction(GenericFsm fsm) {
		fsm.startTimer(((Watchdog)fsm).timeoutVal);
	}
	public void exitAction(GenericFsm fsm) {
		fsm.stopTimer();
	}
	public void timerExpired(GenericFsm fsm) {
		fsm.setState(TIMEDOUT);
	}
	/*
	 * State-specific methods
	 */
	public void evEnable(Watchdog wFsm) {
		wFsm.illegalTrigger();
	}
	public void evDisable(Watchdog wFsm) {
		wFsm.setState(READY);
	}
	public void evStroke(Watchdog wFsm) {
		wFsm.startTimer(wFsm.timeoutVal);
	}	
}