@Test
public void timeoutCancelledTest() {
final long now = System.currentTimeMillis();
final AsyncCallback cb =
new AsyncCallback() {
@Override
public void onCallback() {
/*nop*/
}
};
Timeout t1 = new Timeout(now + 2000, cb);
assertTrue(t1.getCallback() == cb);
t1.cancel();
assertTrue(t1.getCallback() != cb);
assertTrue(t1.isCancelled());
}
@Test
public void simpleTimeoutConstructorTest() {
final AsyncCallback cb =
new AsyncCallback() {
@Override
public void onCallback() {}
};
Timeout t = new Timeout(1492, cb);
assertEquals(1492, t.getTimeout());
assertEquals(cb, t.getCallback());
}
private long executeTimeouts() {
// makes a defensive copy to avoid (1) CME (new timeouts are added this iteration) and (2) IO
// starvation.
TreeSet<Timeout> defensive = new TreeSet<Timeout>(timeouts); /*Sets.newTreeSet(timeouts);*/
Iterator<Timeout> iter = defensive.iterator();
final long now = System.currentTimeMillis();
while (iter.hasNext()) {
Timeout candidate = iter.next();
if (candidate.getTimeout() > now) {
break;
}
candidate.getCallback().onCallback();
iter.remove();
timeouts.remove(candidate);
logger.debug("Timeout triggered: {}", candidate);
}
return timeouts.isEmpty()
? Long.MAX_VALUE
: Math.max(1, timeouts.iterator().next().getTimeout() - now);
}
