@Override
public Boolean execute(Object d, Receptor<Object> r, Signal parent) {
r.lazySet(d); // put the data back in for polling
boolean data = false;
for (int i = 0; i < children.length; i++) {
AtomicIntegerArray inUse = this.inUse;
if (!inUse.compareAndSet(i, 0, 1)) {
if (inUse.get(i) == 2) sleep();
continue;
}
PooledFatPipe child = children[i];
if (child == null) {
inUse.set(i, 0);
continue;
}
Signal signal;
if (parent.getThreadIndex() < 0) {
signal = new ChildSignalImpl(inUse, i);
} else {
ChildSignalImpl s = signals[i * poolSize + parent.getThreadIndex()];
if (s == null || s.inUse != inUse) {
sleep();
inUse.set(i, 0);
continue;
}
s.index = i;
s.notified = false;
signal = s;
}
try {
data |= child.poll(signal, parent);
} catch (Exception e) {
if (listener == null) logger.error("poll", e);
else listener.exceptionThrown(e);
} finally {
signal.signal();
}
}
return data ? Boolean.TRUE : null;
}
public void start() {
parent.start();
Receptor<Object> parentRecptor = parent.takeReceptor();
parentRecptor.set(new Object());
}