EpollDomainDatagramChannel.java — netty Source File

Source Code

/*
 * Copyright 2021 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.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.AddressedEnvelope;
import io.netty.channel.ChannelMetadata;
import io.netty.channel.ChannelOutboundBuffer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.DefaultAddressedEnvelope;
import io.netty.channel.unix.DomainDatagramChannel;
import io.netty.channel.unix.DomainDatagramChannelConfig;
import io.netty.channel.unix.DomainDatagramPacket;
import io.netty.channel.unix.DomainDatagramSocketAddress;
import io.netty.channel.unix.DomainSocketAddress;
import io.netty.channel.unix.IovArray;
import io.netty.channel.unix.PeerCredentials;
import io.netty.channel.unix.UnixChannelUtil;
import io.netty.util.CharsetUtil;
import io.netty.util.UncheckedBooleanSupplier;
import io.netty.util.internal.StringUtil;

import java.io.IOException;
import java.net.SocketAddress;
import java.nio.ByteBuffer;

import static io.netty.channel.epoll.LinuxSocket.newSocketDomainDgram;

public final class EpollDomainDatagramChannel extends AbstractEpollChannel implements DomainDatagramChannel {

    private static final ChannelMetadata METADATA = new ChannelMetadata(true, 16);

    private static final String EXPECTED_TYPES =
            " (expected: " +
                    StringUtil.simpleClassName(DomainDatagramPacket.class) + ", " +
                    StringUtil.simpleClassName(AddressedEnvelope.class) + '<' +
                    StringUtil.simpleClassName(ByteBuf.class) + ", " +
                    StringUtil.simpleClassName(DomainSocketAddress.class) + ">, " +
                    StringUtil.simpleClassName(ByteBuf.class) + ')';

    private volatile boolean connected;
    private volatile DomainSocketAddress local;
    private volatile DomainSocketAddress remote;

    private final EpollDomainDatagramChannelConfig config;

// ... (320 more lines)