void cancelResource() {
Cancellation c = cancel;
if (c != CANCELLED) {
c = CANCEL.getAndSet(this, CANCELLED);
if (c != null && c != CANCELLED) {
requested = 0L;
c.dispose();
}
}
}
@Override
protected void doNext(final T value) {
int index;
for (; ; ) {
index = this.index + 1;
if (INDEX.compareAndSet(this, index - 1, index)) {
break;
}
}
if (index == 1) {
timespanRegistration = timer.schedule(flushTask, timespan, TimeUnit.MILLISECONDS);
if (first) {
firstCallback(value);
}
}
nextCallback(value);
if (this.index % batchSize == 0) {
this.index = 0;
if (timespanRegistration != null) {
timespanRegistration.dispose();
timespanRegistration = null;
}
flushCallback(value);
}
}
@Override
public void setCancellation(Cancellation c) {
if (!CANCEL.compareAndSet(this, null, c)) {
if (cancel != CANCELLED && c != null) {
c.dispose();
}
}
}