LocalServerChannel.java — netty Source File

Source Code

/*
 * Copyright 2012 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.local;

import io.netty.channel.AbstractServerChannel;
import io.netty.channel.ChannelConfig;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.ChannelPromise;
import io.netty.channel.DefaultChannelConfig;
import io.netty.channel.EventLoop;
import io.netty.channel.IoEvent;
import io.netty.channel.IoEventLoop;
import io.netty.channel.IoEventLoopGroup;
import io.netty.channel.IoRegistration;
import io.netty.channel.PreferHeapByteBufAllocator;
import io.netty.channel.RecvByteBufAllocator;
import io.netty.channel.ServerChannel;
import io.netty.channel.ServerChannelRecvByteBufAllocator;
import io.netty.channel.SingleThreadEventLoop;
import io.netty.util.concurrent.SingleThreadEventExecutor;

import java.net.SocketAddress;
import java.util.ArrayDeque;
import java.util.Queue;

/**
 * A {@link ServerChannel} for the local transport which allows in VM communication.
 */
public class LocalServerChannel extends AbstractServerChannel {

    private final ChannelConfig config =
            new DefaultChannelConfig(this, new ServerChannelRecvByteBufAllocator()) { };
    private final Queue<Object> inboundBuffer = new ArrayDeque<Object>();
    private final Runnable shutdownHook = new Runnable() {
        @Override
        public void run() {
            unsafe().close(unsafe().voidPromise());
        }
    };

    private IoRegistration registration;

    private volatile int state; // 0 - open, 1 - active, 2 - closed
    private volatile LocalAddress localAddress;
    private volatile boolean acceptInProgress;

    public LocalServerChannel() {
// ... (195 more lines)