io.reactivex.internal.util.QueueDrain Maven / Gradle / Ivy
/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex.internal.util;
import org.reactivestreams.Subscriber;
public interface QueueDrain {
boolean cancelled();
boolean done();
Throwable error();
boolean enter();
long requested();
long produced(long n);
/**
* Adds m to the wip counter.
* @param m the value to add
* @return the current value after adding m
*/
int leave(int m);
/**
* Accept the value and return true if forwarded.
* @param a the subscriber
* @param v the value
* @return true if the value was delivered
*/
boolean accept(Subscriber a, T v);
}