/*
 * 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.rxjava4.core;

import java.util.concurrent.CountDownLatch;

import org.openjdk.jmh.infra.Blackhole;
import static java.util.concurrent.Flow.*;

/**
 * Performance subscriber with a one-time request from the upstream.
 */
@SuppressWarnings("exports")
public class PerfBoundedSubscriber extends CountDownLatch implements FlowableSubscriber<Object> {

    final Blackhole bh;

    final long request;

    public PerfBoundedSubscriber(Blackhole bh, long request) {
        super(1);
        this.bh = bh;
        this.request = request;
    }

    @Override
    public void onSubscribe(Subscription s) {
        s.request(request);
    }

    @Override
    public void onComplete() {
        countDown();
    }

    @Override
    public void onError(Throwable e) {
        countDown();
    }

    @Override
    public void onNext(Object t) {
        bh.consume(t);
    }

}
