public interface Subscription
void request(long n)
Publisheruntil demand is signaled via this method.
It can be called however often and whenever needed—but the outstanding cumulative demand must never exceed Long.MAX_VALUE.
An outstanding cumulative demand of Long.MAX_VALUE may be treated by the
Publisher as "effectively unbounded".
Whatever has been requested can be sent by the
Publisher so only signal demand for what can be safely handled.
n- the strictly positive number of elements to requests to the upstream