/***
 * "Standard" way to handle count-down timers
 *
 */
#ifndef COUNTDOWNTIMER_H
#define COUNTDOWNTIMER_H

#define CDT_RESET(timer, countdown) (timer) = (countdown)
#define CDT_EXPIRED(timer)          ( ((timer) > 0) ? !(--(timer)) : 1 )
#define CDT_HASEXPIRED(timer)       (0 == (timer))

#endif