void onTimeout(int hand) {
final ReentrantLock lock = m_lock;
// If the lock cannot be acquired, which means this notifier is being
// cancelled or rescheduled or closed, just skip.
if (!lock.tryLock()) return;
try {
// If this notifier is not in the same timeout sublist,
// which means it has been cancelled or rescheduled,
// then skip.
TimeoutEvent event = m_node.get();
if (event == null || hand != event.getIndex()) return;
if (event.getTimeLeft() < 1) {
changeState(TimedOut.getInstance());
m_admin.fireTimeout(this);
} else m_admin.scheduleNextRound(this);
} finally {
lock.unlock();
}
}
