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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2014 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.epoll;

import io.netty.channel.Channel;
import io.netty.channel.EventLoop;
import io.netty.channel.socket.InternetProtocolFamily;
import io.netty.channel.socket.ServerSocketChannel;

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import static io.netty.channel.epoll.LinuxSocket.newSocketStream;
import static io.netty.channel.epoll.Native.IS_SUPPORTING_TCP_FASTOPEN_SERVER;
import static io.netty.channel.unix.NativeInetAddress.address;

/**
 * {@link ServerSocketChannel} implementation that uses linux EPOLL Edge-Triggered Mode for
 * maximal performance.
 */
public final class EpollServerSocketChannel extends AbstractEpollServerChannel implements ServerSocketChannel {

    private final EpollServerSocketChannelConfig config;
    private volatile Collection tcpMd5SigAddresses = Collections.emptyList();

    public EpollServerSocketChannel() {
        this((InternetProtocolFamily) null);
    }

    public EpollServerSocketChannel(InternetProtocolFamily protocol) {
        super(newSocketStream(protocol), false);
        config = new EpollServerSocketChannelConfig(this);
    }

    public EpollServerSocketChannel(int fd) {
        // Must call this constructor to ensure this object's local address is configured correctly.
        // The local address can only be obtained from a Socket object.
        this(new LinuxSocket(fd));
    }

    EpollServerSocketChannel(LinuxSocket fd) {
        super(fd);
        config = new EpollServerSocketChannelConfig(this);
    }

    EpollServerSocketChannel(LinuxSocket fd, boolean active) {
        super(fd, active);
        config = new EpollServerSocketChannelConfig(this);
    }

    @Override
    protected boolean isCompatible(EventLoop loop) {
        return loop instanceof EpollEventLoop;
    }

    @Override
    protected void doBind(SocketAddress localAddress) throws Exception {
        super.doBind(localAddress);
        final int tcpFastopen;
        if (IS_SUPPORTING_TCP_FASTOPEN_SERVER && (tcpFastopen = config.getTcpFastopen()) > 0) {
            socket.setTcpFastOpen(tcpFastopen);
        }
        socket.listen(config.getBacklog());
        active = true;
    }

    @Override
    public InetSocketAddress remoteAddress() {
        return (InetSocketAddress) super.remoteAddress();
    }

    @Override
    public InetSocketAddress localAddress() {
        return (InetSocketAddress) super.localAddress();
    }

    @Override
    public EpollServerSocketChannelConfig config() {
        return config;
    }

    @Override
    protected Channel newChildChannel(int fd, byte[] address, int offset, int len) throws Exception {
        return new EpollSocketChannel(this, new LinuxSocket(fd), address(address, offset, len));
    }

    Collection tcpMd5SigAddresses() {
        return tcpMd5SigAddresses;
    }

    void setTcpMd5Sig(Map keys) throws IOException {
        // Add synchronized as newTcpMp5Sigs might do multiple operations on the socket itself.
        synchronized (this) {
            tcpMd5SigAddresses = TcpMd5Util.newTcpMd5Sigs(this, tcpMd5SigAddresses, keys);
        }
    }
}