/**
* Creates a new instance.
*
* @param timer the {@link Timer} that is used to trigger the scheduled event. The recommended
* {@link Timer} implementation is {@link HashedWheelTimer}.
* @param timeout read timeout
* @param unit the {@link TimeUnit} of {@code timeout}
*/
public ReadTimeoutHandler(Timer timer, long timeout, TimeUnit unit) {
if (timer == null) {
throw new NullPointerException("timer");
}
if (unit == null) {
throw new NullPointerException("unit");
}
this.timer = timer;
if (timeout <= 0) {
timeoutMillis = 0;
} else {
timeoutMillis = Math.max(unit.toMillis(timeout), 1);
}
}
NioDatagramWorker nextWorker() {
return workers[Math.abs(workerIndex.getAndIncrement() % workers.length)];
}