DefaultChannelProgressivePromise.java — netty Source File

Source Code

/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project licenses this file to you 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:
 *
 *   https://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.netty.channel;

import io.netty.channel.ChannelFlushPromiseNotifier.FlushCheckpoint;
import io.netty.util.concurrent.DefaultProgressivePromise;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;

/**
 * The default {@link ChannelProgressivePromise} implementation.  It is recommended to use
 * {@link Channel#newProgressivePromise()} to create a new {@link ChannelProgressivePromise} rather than calling the
 * constructor explicitly.
 */
public class DefaultChannelProgressivePromise
        extends DefaultProgressivePromise<Void> implements ChannelProgressivePromise, FlushCheckpoint {

    private final Channel channel;
    private long checkpoint;

    /**
     * Creates a new instance.
     *
     * @param channel
     *        the {@link Channel} associated with this future
     */
    public DefaultChannelProgressivePromise(Channel channel) {
        this.channel = channel;
    }

    /**
     * Creates a new instance.
     *
     * @param channel
     *        the {@link Channel} associated with this future
     */
    public DefaultChannelProgressivePromise(Channel channel, EventExecutor executor) {
        super(executor);
        this.channel = channel;
    }

    @Override
    protected EventExecutor executor() {
        EventExecutor e = super.executor();
        if (e == null) {
            return channel().eventLoop();
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