289 lines
9.7 KiB
Java
289 lines
9.7 KiB
Java
/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel.epoll;
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import io.netty.buffer.ByteBufAllocator;
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import io.netty.channel.ChannelException;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.MessageSizeEstimator;
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import io.netty.channel.RecvByteBufAllocator;
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import io.netty.channel.WriteBufferWaterMark;
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import io.netty.channel.socket.ServerSocketChannelConfig;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.util.Map;
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public final class EpollServerSocketChannelConfig extends EpollServerChannelConfig
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implements ServerSocketChannelConfig {
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EpollServerSocketChannelConfig(EpollServerSocketChannel channel) {
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super(channel);
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// Use SO_REUSEADDR by default as java.nio does the same.
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//
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// See https://github.com/netty/netty/issues/2605
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setReuseAddress(true);
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}
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@Override
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public Map<ChannelOption<?>, Object> getOptions() {
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return getOptions(super.getOptions(), EpollChannelOption.SO_REUSEPORT, EpollChannelOption.IP_FREEBIND,
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EpollChannelOption.IP_TRANSPARENT, EpollChannelOption.TCP_DEFER_ACCEPT);
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}
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@SuppressWarnings("unchecked")
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@Override
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public <T> T getOption(ChannelOption<T> option) {
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if (option == EpollChannelOption.SO_REUSEPORT) {
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return (T) Boolean.valueOf(isReusePort());
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}
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if (option == EpollChannelOption.IP_FREEBIND) {
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return (T) Boolean.valueOf(isFreeBind());
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}
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if (option == EpollChannelOption.IP_TRANSPARENT) {
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return (T) Boolean.valueOf(isIpTransparent());
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}
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if (option == EpollChannelOption.TCP_DEFER_ACCEPT) {
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return (T) Integer.valueOf(getTcpDeferAccept());
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}
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return super.getOption(option);
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}
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@Override
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public <T> boolean setOption(ChannelOption<T> option, T value) {
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validate(option, value);
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if (option == EpollChannelOption.SO_REUSEPORT) {
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setReusePort((Boolean) value);
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} else if (option == EpollChannelOption.IP_FREEBIND) {
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setFreeBind((Boolean) value);
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} else if (option == EpollChannelOption.IP_TRANSPARENT) {
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setIpTransparent((Boolean) value);
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} else if (option == EpollChannelOption.TCP_MD5SIG) {
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@SuppressWarnings("unchecked")
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final Map<InetAddress, byte[]> m = (Map<InetAddress, byte[]>) value;
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setTcpMd5Sig(m);
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} else if (option == EpollChannelOption.TCP_DEFER_ACCEPT) {
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setTcpDeferAccept((Integer) value);
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} else {
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return super.setOption(option, value);
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}
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return true;
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}
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@Override
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public EpollServerSocketChannelConfig setReuseAddress(boolean reuseAddress) {
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super.setReuseAddress(reuseAddress);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setReceiveBufferSize(int receiveBufferSize) {
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super.setReceiveBufferSize(receiveBufferSize);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setBacklog(int backlog) {
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super.setBacklog(backlog);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
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super.setConnectTimeoutMillis(connectTimeoutMillis);
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return this;
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}
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@Override
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@Deprecated
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public EpollServerSocketChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead) {
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super.setMaxMessagesPerRead(maxMessagesPerRead);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setWriteSpinCount(int writeSpinCount) {
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super.setWriteSpinCount(writeSpinCount);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setAllocator(ByteBufAllocator allocator) {
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super.setAllocator(allocator);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator) {
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super.setRecvByteBufAllocator(allocator);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setAutoRead(boolean autoRead) {
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super.setAutoRead(autoRead);
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return this;
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}
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@Override
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@Deprecated
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public EpollServerSocketChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark) {
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super.setWriteBufferHighWaterMark(writeBufferHighWaterMark);
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return this;
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}
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@Override
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@Deprecated
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public EpollServerSocketChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark) {
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super.setWriteBufferLowWaterMark(writeBufferLowWaterMark);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark) {
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super.setWriteBufferWaterMark(writeBufferWaterMark);
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return this;
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}
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@Override
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public EpollServerSocketChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) {
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super.setMessageSizeEstimator(estimator);
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return this;
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}
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/**
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* Set the {@code TCP_MD5SIG} option on the socket. See {@code linux/tcp.h} for more details.
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* Keys can only be set on, not read to prevent a potential leak, as they are confidential.
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* Allowing them being read would mean anyone with access to the channel could get them.
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*/
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public EpollServerSocketChannelConfig setTcpMd5Sig(Map<InetAddress, byte[]> keys) {
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try {
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((EpollServerSocketChannel) channel).setTcpMd5Sig(keys);
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return this;
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Returns {@code true} if the SO_REUSEPORT option is set.
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*/
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public boolean isReusePort() {
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try {
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return ((EpollServerSocketChannel) channel).socket.isReusePort();
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Set the SO_REUSEPORT option on the underlying Channel. This will allow to bind multiple
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* {@link EpollSocketChannel}s to the same port and so accept connections with multiple threads.
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*
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* Be aware this method needs be called before {@link EpollSocketChannel#bind(java.net.SocketAddress)} to have
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* any affect.
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*/
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public EpollServerSocketChannelConfig setReusePort(boolean reusePort) {
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try {
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((EpollServerSocketChannel) channel).socket.setReusePort(reusePort);
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return this;
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Returns {@code true} if <a href="http://man7.org/linux/man-pages/man7/ip.7.html">IP_FREEBIND</a> is enabled,
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* {@code false} otherwise.
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*/
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public boolean isFreeBind() {
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try {
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return ((EpollServerSocketChannel) channel).socket.isIpFreeBind();
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* If {@code true} is used <a href="http://man7.org/linux/man-pages/man7/ip.7.html">IP_FREEBIND</a> is enabled,
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* {@code false} for disable it. Default is disabled.
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*/
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public EpollServerSocketChannelConfig setFreeBind(boolean freeBind) {
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try {
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((EpollServerSocketChannel) channel).socket.setIpFreeBind(freeBind);
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return this;
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Returns {@code true} if <a href="http://man7.org/linux/man-pages/man7/ip.7.html">IP_TRANSPARENT</a> is enabled,
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* {@code false} otherwise.
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*/
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public boolean isIpTransparent() {
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try {
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return ((EpollServerSocketChannel) channel).socket.isIpTransparent();
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* If {@code true} is used <a href="http://man7.org/linux/man-pages/man7/ip.7.html">IP_TRANSPARENT</a> is enabled,
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* {@code false} for disable it. Default is disabled.
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*/
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public EpollServerSocketChannelConfig setIpTransparent(boolean transparent) {
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try {
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((EpollServerSocketChannel) channel).socket.setIpTransparent(transparent);
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return this;
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Set the {@code TCP_DEFER_ACCEPT} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollServerSocketChannelConfig setTcpDeferAccept(int deferAccept) {
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try {
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((EpollServerSocketChannel) channel).socket.setTcpDeferAccept(deferAccept);
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return this;
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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/**
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* Returns a positive value if <a href="http://linux.die.net/man/7/tcp">TCP_DEFER_ACCEPT</a> is enabled.
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*/
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public int getTcpDeferAccept() {
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try {
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return ((EpollServerSocketChannel) channel).socket.getTcpDeferAccept();
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} catch (IOException e) {
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throw new ChannelException(e);
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}
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}
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}
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