Examples of io.netty.channel.socket.DatagramChannelConfig

io.netty.channel.socket.DatagramChannelConfig

A {@link ChannelConfig} for a {@link DatagramChannel}.

Available options

In addition to the options provided by {@link ChannelConfig}, {@link DatagramChannelConfig} allows the following options in the option map:

Name	Associated setter method
{@link ChannelOption#SO_BROADCAST}	{@link #setBroadcast(boolean)}
{@link ChannelOption#IP_MULTICAST_ADDR}	{@link #setInterface(InetAddress)}
{@link ChannelOption#IP_MULTICAST_LOOP_DISABLED}	{@link #setLoopbackModeDisabled(boolean)}
{@link ChannelOption#IP_MULTICAST_IF}	{@link #setNetworkInterface(NetworkInterface)}
{@link ChannelOption#SO_REUSEADDR}	{@link #setReuseAddress(boolean)}
{@link ChannelOption#SO_RCVBUF}	{@link #setReceiveBufferSize(int)}
{@link ChannelOption#SO_SNDBUF}	{@link #setSendBufferSize(int)}
{@link ChannelOption#IP_MULTICAST_TTL}	{@link #setTimeToLive(int)}
{@link ChannelOption#IP_TOS}	{@link #setTrafficClass(int)}
{@link ChannelOption#UDP_RECEIVE_PACKET_SIZE}	{@link #setReceivePacketSize(int)}

            }
        }


        @Override
        void epollInReady() {
            DatagramChannelConfig config = config();
            RecvByteBufAllocator.Handle allocHandle = unsafe().recvBufAllocHandle();


            assert eventLoop().inEventLoop();
            final ChannelPipeline pipeline = pipeline();
            try {
                for (;;) {
                    ByteBuf data = null;
                    try {
                        data = allocHandle.allocate(config.getAllocator());
                        int writerIndex = data.writerIndex();
                        DatagramSocketAddress remoteAddress;
                        if (data.hasMemoryAddress()) {
                            // has a memory address so use optimized call
                            remoteAddress = Native.recvFromAddress(

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        .option(ChannelOption.SO_REUSEADDR, options.reuseAddr())
        .channelFactory(new ChannelFactory<Channel>() {
          @Override
          public Channel newChannel() {
            final NioDatagramChannel ch = new NioDatagramChannel();
            DatagramChannelConfig config = ch.config();
            config.setReceiveBufferSize(options.rcvbuf());
            config.setSendBufferSize(options.sndbuf());
            config.setReuseAddress(options.reuseAddr());


            if (null != multicastInterface) {
              config.setNetworkInterface(multicastInterface);
            }


            if (null != nettyOptions && null != nettyOptions.pipelineConfigurer()) {
              nettyOptions.pipelineConfigurer().accept(ch.pipeline());
            }

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        socket.close();
    }


    @Override
    protected int doReadMessages(List<Object> buf) throws Exception {
        DatagramChannelConfig config = config();
        RecvByteBufAllocator.Handle allocHandle = this.allocHandle;
        if (allocHandle == null) {
            this.allocHandle = allocHandle = config.getRecvByteBufAllocator().newHandle();
        }


        ByteBuf data = config.getAllocator().heapBuffer(allocHandle.guess());
        boolean free = true;
        try {
            tmpPacket.setData(data.array(), data.arrayOffset(), data.capacity());
            socket.receive(tmpPacket);

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            }
        }


        @Override
        void epollInReady() {
            DatagramChannelConfig config = config();
            RecvByteBufAllocator.Handle allocHandle = this.allocHandle;
            if (allocHandle == null) {
                this.allocHandle = allocHandle = config.getRecvByteBufAllocator().newHandle();
            }


            assert eventLoop().inEventLoop();
            final ChannelPipeline pipeline = pipeline();
            try {
                for (;;) {
                    ByteBuf data = null;
                    try {
                        data = allocHandle.allocate(config.getAllocator());
                        int writerIndex = data.writerIndex();
                        DatagramSocketAddress remoteAddress;
                        if (data.hasMemoryAddress()) {
                            // has a memory address so use optimized call
                            remoteAddress = Native.recvFromAddress(

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    }


    @Override
    protected int doReadMessages(List<Object> buf) throws Exception {
        DatagramChannel ch = javaChannel();
        DatagramChannelConfig config = config();
        RecvByteBufAllocator.Handle allocHandle = this.allocHandle;
        if (allocHandle == null) {
            this.allocHandle = allocHandle = config.getRecvByteBufAllocator().newHandle();
        }
        ByteBuf data = allocHandle.allocate(config.getAllocator());
        boolean free = true;
        try {
            ByteBuffer nioData = data.internalNioBuffer(data.writerIndex(), data.writableBytes());
            int pos = nioData.position();
            InetSocketAddress remoteAddress = (InetSocketAddress) ch.receive(nioData);

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Related Classes of io.netty.channel.socket.DatagramChannelConfig

io.netty.channel.epoll.EpollDatagramChannel$EpollDatagramChannelUnsafe

io.netty.channel.socket.nio.NioDatagramChannel

io.netty.channel.socket.oio.OioDatagramChannel

reactor.net.netty.udp.NettyDatagramServer

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