NioServerDomainSocketChannel.java — netty Source File

Source Code

/*
 * Copyright 2024 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.socket.nio;

import io.netty.channel.ChannelConfig;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelMetadata;
import io.netty.channel.ChannelOption;
import io.netty.channel.ChannelOutboundBuffer;
import io.netty.channel.DefaultChannelConfig;
import io.netty.channel.ServerChannelRecvByteBufAllocator;
import io.netty.channel.nio.AbstractNioMessageChannel;
import io.netty.util.NetUtil;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SocketUtils;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.io.IOException;
import java.lang.reflect.Method;

import java.net.SocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.SelectorProvider;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import static io.netty.channel.ChannelOption.SO_BACKLOG;
import static io.netty.util.internal.ObjectUtil.checkPositiveOrZero;


/**
 * A {@link io.netty.channel.ServerChannel} implementation which uses
 * NIO selector based implementation to support UNIX Domain Sockets. This is only supported when using Java 16+.
 */
public final class NioServerDomainSocketChannel extends AbstractNioMessageChannel
        implements io.netty.channel.ServerChannel {
    private static final Method OPEN_SERVER_SOCKET_CHANNEL_WITH_FAMILY =
            SelectorProviderUtil.findOpenMethod("openServerSocketChannel");
    private static final InternalLogger logger = InternalLoggerFactory.getInstance(NioServerDomainSocketChannel.class);
    private static final ChannelMetadata METADATA = new ChannelMetadata(false, 16);
    private static final SelectorProvider DEFAULT_SELECTOR_PROVIDER = SelectorProvider.provider();
    private final NioDomainServerSocketChannelConfig config;
// ... (224 more lines)