33d1a91083
Motivation: Provide epoll/native multicast to support high load multicast users (we are using it for a high load telecomm app at my day job). Modification: Added support for source specific and any source multicast for epoll transport. Some caveats: no support for disabling loop back mode, retrieval of interface and block operation, all of which tend to be less frequently used. Result: Provides epoll transport multicast for common use cases. Co-authored-by: Norman Maurer <norman_maurer@apple.com>
486 lines
16 KiB
Java
486 lines
16 KiB
Java
/*
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* Copyright 2012 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.FixedRecvByteBufAllocator;
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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.DatagramChannelConfig;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.util.Map;
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public final class EpollDatagramChannelConfig extends EpollChannelConfig implements DatagramChannelConfig {
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private static final RecvByteBufAllocator DEFAULT_RCVBUF_ALLOCATOR = new FixedRecvByteBufAllocator(2048);
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private boolean activeOnOpen;
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EpollDatagramChannelConfig(EpollDatagramChannel channel) {
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super(channel);
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setRecvByteBufAllocator(DEFAULT_RCVBUF_ALLOCATOR);
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}
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@Override
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@SuppressWarnings("deprecation")
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public Map<ChannelOption<?>, Object> getOptions() {
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return getOptions(
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super.getOptions(),
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ChannelOption.SO_BROADCAST, ChannelOption.SO_RCVBUF, ChannelOption.SO_SNDBUF,
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ChannelOption.SO_REUSEADDR, ChannelOption.IP_MULTICAST_LOOP_DISABLED,
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ChannelOption.IP_MULTICAST_ADDR, ChannelOption.IP_MULTICAST_IF, ChannelOption.IP_MULTICAST_TTL,
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ChannelOption.IP_TOS, ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION,
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EpollChannelOption.SO_REUSEPORT, EpollChannelOption.IP_FREEBIND, EpollChannelOption.IP_TRANSPARENT,
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EpollChannelOption.IP_RECVORIGDSTADDR);
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}
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@SuppressWarnings({ "unchecked", "deprecation" })
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@Override
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public <T> T getOption(ChannelOption<T> option) {
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if (option == ChannelOption.SO_BROADCAST) {
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return (T) Boolean.valueOf(isBroadcast());
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}
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if (option == ChannelOption.SO_RCVBUF) {
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return (T) Integer.valueOf(getReceiveBufferSize());
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}
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if (option == ChannelOption.SO_SNDBUF) {
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return (T) Integer.valueOf(getSendBufferSize());
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}
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if (option == ChannelOption.SO_REUSEADDR) {
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return (T) Boolean.valueOf(isReuseAddress());
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}
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if (option == ChannelOption.IP_MULTICAST_LOOP_DISABLED) {
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return (T) Boolean.valueOf(isLoopbackModeDisabled());
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}
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if (option == ChannelOption.IP_MULTICAST_ADDR) {
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return (T) getInterface();
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}
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if (option == ChannelOption.IP_MULTICAST_IF) {
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return (T) getNetworkInterface();
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}
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if (option == ChannelOption.IP_MULTICAST_TTL) {
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return (T) Integer.valueOf(getTimeToLive());
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}
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if (option == ChannelOption.IP_TOS) {
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return (T) Integer.valueOf(getTrafficClass());
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}
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if (option == ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION) {
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return (T) Boolean.valueOf(activeOnOpen);
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}
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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_TRANSPARENT) {
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return (T) Boolean.valueOf(isIpTransparent());
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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_RECVORIGDSTADDR) {
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return (T) Boolean.valueOf(isIpRecvOrigDestAddr());
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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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@SuppressWarnings("deprecation")
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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 == ChannelOption.SO_BROADCAST) {
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setBroadcast((Boolean) value);
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} else if (option == ChannelOption.SO_RCVBUF) {
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setReceiveBufferSize((Integer) value);
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} else if (option == ChannelOption.SO_SNDBUF) {
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setSendBufferSize((Integer) value);
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} else if (option == ChannelOption.SO_REUSEADDR) {
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setReuseAddress((Boolean) value);
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} else if (option == ChannelOption.IP_MULTICAST_LOOP_DISABLED) {
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setLoopbackModeDisabled((Boolean) value);
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} else if (option == ChannelOption.IP_MULTICAST_ADDR) {
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setInterface((InetAddress) value);
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} else if (option == ChannelOption.IP_MULTICAST_IF) {
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setNetworkInterface((NetworkInterface) value);
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} else if (option == ChannelOption.IP_MULTICAST_TTL) {
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setTimeToLive((Integer) value);
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} else if (option == ChannelOption.IP_TOS) {
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setTrafficClass((Integer) value);
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} else if (option == ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION) {
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setActiveOnOpen((Boolean) value);
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} else 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.IP_RECVORIGDSTADDR) {
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setIpRecvOrigDestAddr((Boolean) 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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private void setActiveOnOpen(boolean activeOnOpen) {
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if (channel.isRegistered()) {
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throw new IllegalStateException("Can only changed before channel was registered");
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}
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this.activeOnOpen = activeOnOpen;
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}
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boolean getActiveOnOpen() {
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return activeOnOpen;
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}
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@Override
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public EpollDatagramChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) {
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super.setMessageSizeEstimator(estimator);
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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 EpollDatagramChannelConfig 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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@Deprecated
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public EpollDatagramChannelConfig 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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public EpollDatagramChannelConfig 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 EpollDatagramChannelConfig setAutoClose(boolean autoClose) {
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super.setAutoClose(autoClose);
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return this;
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}
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@Override
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public EpollDatagramChannelConfig 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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public EpollDatagramChannelConfig 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 EpollDatagramChannelConfig 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 EpollDatagramChannelConfig 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 EpollDatagramChannelConfig 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 EpollDatagramChannelConfig 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 int getSendBufferSize() {
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try {
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return ((EpollDatagramChannel) channel).socket.getSendBufferSize();
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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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@Override
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public EpollDatagramChannelConfig setSendBufferSize(int sendBufferSize) {
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try {
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((EpollDatagramChannel) channel).socket.setSendBufferSize(sendBufferSize);
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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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@Override
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public int getReceiveBufferSize() {
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try {
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return ((EpollDatagramChannel) channel).socket.getReceiveBufferSize();
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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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@Override
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public EpollDatagramChannelConfig setReceiveBufferSize(int receiveBufferSize) {
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try {
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((EpollDatagramChannel) channel).socket.setReceiveBufferSize(receiveBufferSize);
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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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@Override
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public int getTrafficClass() {
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try {
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return ((EpollDatagramChannel) channel).socket.getTrafficClass();
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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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@Override
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public EpollDatagramChannelConfig setTrafficClass(int trafficClass) {
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try {
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((EpollDatagramChannel) channel).socket.setTrafficClass(trafficClass);
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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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@Override
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public boolean isReuseAddress() {
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try {
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return ((EpollDatagramChannel) channel).socket.isReuseAddress();
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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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@Override
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public EpollDatagramChannelConfig setReuseAddress(boolean reuseAddress) {
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try {
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((EpollDatagramChannel) channel).socket.setReuseAddress(reuseAddress);
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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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@Override
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public boolean isBroadcast() {
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try {
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return ((EpollDatagramChannel) channel).socket.isBroadcast();
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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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@Override
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public EpollDatagramChannelConfig setBroadcast(boolean broadcast) {
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try {
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((EpollDatagramChannel) channel).socket.setBroadcast(broadcast);
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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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@Override
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public boolean isLoopbackModeDisabled() {
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return false;
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}
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@Override
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public DatagramChannelConfig setLoopbackModeDisabled(boolean loopbackModeDisabled) {
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throw new UnsupportedOperationException("Multicast not supported");
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}
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@Override
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public int getTimeToLive() {
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try {
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return ((EpollDatagramChannel) channel).socket.getTimeToLive();
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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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@Override
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public EpollDatagramChannelConfig setTimeToLive(int ttl) {
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try {
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((EpollDatagramChannel) channel).socket.setTimeToLive(ttl);
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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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@Override
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public InetAddress getInterface() {
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return null;
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}
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@Override
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public EpollDatagramChannelConfig setInterface(InetAddress interfaceAddress) {
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try {
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((EpollDatagramChannel) channel).socket.setInterface(interfaceAddress);
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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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@Override
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public NetworkInterface getNetworkInterface() {
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return null;
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}
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@Override
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public EpollDatagramChannelConfig setNetworkInterface(NetworkInterface networkInterface) {
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try {
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EpollDatagramChannel datagramChannel = (EpollDatagramChannel) channel;
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datagramChannel.socket.setNetworkInterface(networkInterface, datagramChannel.family);
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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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@Override
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public EpollDatagramChannelConfig setEpollMode(EpollMode mode) {
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super.setEpollMode(mode);
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return this;
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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 ((EpollDatagramChannel) 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 EpollDatagramChannel#bind(java.net.SocketAddress)} to have
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* any affect.
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*/
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public EpollDatagramChannelConfig setReusePort(boolean reusePort) {
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try {
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((EpollDatagramChannel) 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_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 ((EpollDatagramChannel) 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 EpollDatagramChannelConfig setIpTransparent(boolean ipTransparent) {
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try {
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((EpollDatagramChannel) channel).socket.setIpTransparent(ipTransparent);
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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 ((EpollDatagramChannel) 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 EpollDatagramChannelConfig setFreeBind(boolean freeBind) {
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try {
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((EpollDatagramChannel) 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_RECVORIGDSTADDR</a> is
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* enabled, {@code false} otherwise.
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*/
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public boolean isIpRecvOrigDestAddr() {
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try {
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return ((EpollDatagramChannel) channel).socket.isIpRecvOrigDestAddr();
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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_RECVORIGDSTADDR</a> is
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* enabled, {@code false} for disable it. Default is disabled.
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*/
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public EpollDatagramChannelConfig setIpRecvOrigDestAddr(boolean ipTransparent) {
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try {
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((EpollDatagramChannel) channel).socket.setIpRecvOrigDestAddr(ipTransparent);
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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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