io.reactivex.rxjava3.internal.schedulers.SchedulerMultiWorkerSupport Maven / Gradle / Ivy
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/*
* 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.rxjava3.internal.schedulers;
import io.reactivex.rxjava3.annotations.NonNull;
import io.reactivex.rxjava3.core.Scheduler;
/**
* Allows retrieving multiple workers from the implementing
* {@link io.reactivex.rxjava3.core.Scheduler} in a way that when asking for
* at most the parallelism level of the Scheduler, those
* {@link io.reactivex.rxjava3.core.Scheduler.Worker} instances will be running
* with different backing threads.
* History: 2.1.8 - experimental
* @since 2.2
*/
public interface SchedulerMultiWorkerSupport {
/**
* Creates the given number of {@link io.reactivex.rxjava3.core.Scheduler.Worker} instances
* that are possibly backed by distinct threads
* and calls the specified {@code Consumer} with them.
* @param number the number of workers to create, positive
* @param callback the callback to send worker instances to
*/
void createWorkers(int number, @NonNull WorkerCallback callback);
/**
* The callback interface for the {@link SchedulerMultiWorkerSupport#createWorkers(int, WorkerCallback)}
* method.
*/
interface WorkerCallback {
/**
* Called with the Worker index and instance.
* @param index the worker index, zero-based
* @param worker the worker instance
*/
void onWorker(int index, @NonNull Scheduler.Worker worker);
}
}