6138541033
Motivation The EpollChannelConfig (same for KQueues) and its subclasses repeatetly declare their own channel field which leads to a 3x repetition for each config instance. Given the fields are protected or package-private it's exposing the code code to "field hiding" bugs. Modifications Use the the existing protected channel field from the DefaultChannelConfig class and simply cast it when needed. Result Fixes #8331
672 lines
22 KiB
Java
672 lines
22 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.SocketChannelConfig;
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import io.netty.util.internal.PlatformDependent;
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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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import static io.netty.channel.ChannelOption.ALLOW_HALF_CLOSURE;
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import static io.netty.channel.ChannelOption.IP_TOS;
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import static io.netty.channel.ChannelOption.SO_KEEPALIVE;
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import static io.netty.channel.ChannelOption.SO_LINGER;
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import static io.netty.channel.ChannelOption.SO_RCVBUF;
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import static io.netty.channel.ChannelOption.SO_REUSEADDR;
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import static io.netty.channel.ChannelOption.SO_SNDBUF;
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import static io.netty.channel.ChannelOption.TCP_NODELAY;
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public final class EpollSocketChannelConfig extends EpollChannelConfig implements SocketChannelConfig {
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private volatile boolean allowHalfClosure;
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/**
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* Creates a new instance.
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*/
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EpollSocketChannelConfig(EpollSocketChannel channel) {
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super(channel);
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if (PlatformDependent.canEnableTcpNoDelayByDefault()) {
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setTcpNoDelay(true);
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}
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calculateMaxBytesPerGatheringWrite();
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}
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@Override
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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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SO_RCVBUF, SO_SNDBUF, TCP_NODELAY, SO_KEEPALIVE, SO_REUSEADDR, SO_LINGER, IP_TOS,
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ALLOW_HALF_CLOSURE, EpollChannelOption.TCP_CORK, EpollChannelOption.TCP_NOTSENT_LOWAT,
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EpollChannelOption.TCP_KEEPCNT, EpollChannelOption.TCP_KEEPIDLE, EpollChannelOption.TCP_KEEPINTVL,
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EpollChannelOption.TCP_MD5SIG, EpollChannelOption.TCP_QUICKACK, EpollChannelOption.IP_TRANSPARENT,
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EpollChannelOption.TCP_FASTOPEN_CONNECT, EpollChannelOption.SO_BUSY_POLL);
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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 == SO_RCVBUF) {
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return (T) Integer.valueOf(getReceiveBufferSize());
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}
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if (option == SO_SNDBUF) {
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return (T) Integer.valueOf(getSendBufferSize());
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}
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if (option == TCP_NODELAY) {
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return (T) Boolean.valueOf(isTcpNoDelay());
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}
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if (option == SO_KEEPALIVE) {
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return (T) Boolean.valueOf(isKeepAlive());
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}
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if (option == SO_REUSEADDR) {
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return (T) Boolean.valueOf(isReuseAddress());
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}
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if (option == SO_LINGER) {
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return (T) Integer.valueOf(getSoLinger());
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}
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if (option == IP_TOS) {
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return (T) Integer.valueOf(getTrafficClass());
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}
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if (option == ALLOW_HALF_CLOSURE) {
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return (T) Boolean.valueOf(isAllowHalfClosure());
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}
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if (option == EpollChannelOption.TCP_CORK) {
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return (T) Boolean.valueOf(isTcpCork());
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}
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if (option == EpollChannelOption.TCP_NOTSENT_LOWAT) {
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return (T) Long.valueOf(getTcpNotSentLowAt());
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}
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if (option == EpollChannelOption.TCP_KEEPIDLE) {
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return (T) Integer.valueOf(getTcpKeepIdle());
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}
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if (option == EpollChannelOption.TCP_KEEPINTVL) {
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return (T) Integer.valueOf(getTcpKeepIntvl());
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}
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if (option == EpollChannelOption.TCP_KEEPCNT) {
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return (T) Integer.valueOf(getTcpKeepCnt());
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}
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if (option == EpollChannelOption.TCP_USER_TIMEOUT) {
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return (T) Integer.valueOf(getTcpUserTimeout());
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}
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if (option == EpollChannelOption.TCP_QUICKACK) {
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return (T) Boolean.valueOf(isTcpQuickAck());
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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_FASTOPEN_CONNECT) {
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return (T) Boolean.valueOf(isTcpFastOpenConnect());
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}
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if (option == EpollChannelOption.SO_BUSY_POLL) {
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return (T) Integer.valueOf(getSoBusyPoll());
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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 == SO_RCVBUF) {
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setReceiveBufferSize((Integer) value);
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} else if (option == SO_SNDBUF) {
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setSendBufferSize((Integer) value);
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} else if (option == TCP_NODELAY) {
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setTcpNoDelay((Boolean) value);
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} else if (option == SO_KEEPALIVE) {
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setKeepAlive((Boolean) value);
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} else if (option == SO_REUSEADDR) {
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setReuseAddress((Boolean) value);
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} else if (option == SO_LINGER) {
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setSoLinger((Integer) value);
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} else if (option == IP_TOS) {
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setTrafficClass((Integer) value);
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} else if (option == ALLOW_HALF_CLOSURE) {
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setAllowHalfClosure((Boolean) value);
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} else if (option == EpollChannelOption.TCP_CORK) {
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setTcpCork((Boolean) value);
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} else if (option == EpollChannelOption.TCP_NOTSENT_LOWAT) {
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setTcpNotSentLowAt((Long) value);
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} else if (option == EpollChannelOption.TCP_KEEPIDLE) {
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setTcpKeepIdle((Integer) value);
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} else if (option == EpollChannelOption.TCP_KEEPCNT) {
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setTcpKeepCnt((Integer) value);
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} else if (option == EpollChannelOption.TCP_KEEPINTVL) {
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setTcpKeepIntvl((Integer) value);
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} else if (option == EpollChannelOption.TCP_USER_TIMEOUT) {
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setTcpUserTimeout((Integer) 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_QUICKACK) {
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setTcpQuickAck((Boolean) value);
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} else if (option == EpollChannelOption.TCP_FASTOPEN_CONNECT) {
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setTcpFastOpenConnect((Boolean) value);
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} else if (option == EpollChannelOption.SO_BUSY_POLL) {
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setSoBusyPoll((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 int getReceiveBufferSize() {
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try {
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return ((EpollSocketChannel) 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 int getSendBufferSize() {
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try {
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return ((EpollSocketChannel) 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 int getSoLinger() {
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try {
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return ((EpollSocketChannel) channel).socket.getSoLinger();
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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 ((EpollSocketChannel) 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 boolean isKeepAlive() {
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try {
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return ((EpollSocketChannel) channel).socket.isKeepAlive();
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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 ((EpollSocketChannel) 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 boolean isTcpNoDelay() {
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try {
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return ((EpollSocketChannel) channel).socket.isTcpNoDelay();
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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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* Get the {@code TCP_CORK} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public boolean isTcpCork() {
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try {
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return ((EpollSocketChannel) channel).socket.isTcpCork();
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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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* Get the {@code SO_BUSY_POLL} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public int getSoBusyPoll() {
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try {
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return ((EpollSocketChannel) channel).socket.getSoBusyPoll();
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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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* Get the {@code TCP_NOTSENT_LOWAT} option on the socket. See {@code man 7 tcp} for more details.
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* @return value is a uint32_t
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*/
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public long getTcpNotSentLowAt() {
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try {
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return ((EpollSocketChannel) channel).socket.getTcpNotSentLowAt();
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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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* Get the {@code TCP_KEEPIDLE} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public int getTcpKeepIdle() {
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try {
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return ((EpollSocketChannel) channel).socket.getTcpKeepIdle();
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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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* Get the {@code TCP_KEEPINTVL} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public int getTcpKeepIntvl() {
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try {
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return ((EpollSocketChannel) channel).socket.getTcpKeepIntvl();
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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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* Get the {@code TCP_KEEPCNT} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public int getTcpKeepCnt() {
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try {
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return ((EpollSocketChannel) channel).socket.getTcpKeepCnt();
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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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* Get the {@code TCP_USER_TIMEOUT} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public int getTcpUserTimeout() {
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try {
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return ((EpollSocketChannel) channel).socket.getTcpUserTimeout();
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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 EpollSocketChannelConfig setKeepAlive(boolean keepAlive) {
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try {
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((EpollSocketChannel) channel).socket.setKeepAlive(keepAlive);
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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 EpollSocketChannelConfig setPerformancePreferences(
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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 EpollSocketChannelConfig setReceiveBufferSize(int receiveBufferSize) {
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try {
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((EpollSocketChannel) 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 EpollSocketChannelConfig setReuseAddress(boolean reuseAddress) {
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try {
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((EpollSocketChannel) 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 EpollSocketChannelConfig setSendBufferSize(int sendBufferSize) {
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try {
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((EpollSocketChannel) channel).socket.setSendBufferSize(sendBufferSize);
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calculateMaxBytesPerGatheringWrite();
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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 EpollSocketChannelConfig setSoLinger(int soLinger) {
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try {
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((EpollSocketChannel) channel).socket.setSoLinger(soLinger);
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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 EpollSocketChannelConfig setTcpNoDelay(boolean tcpNoDelay) {
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try {
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((EpollSocketChannel) channel).socket.setTcpNoDelay(tcpNoDelay);
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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_CORK} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setTcpCork(boolean tcpCork) {
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try {
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((EpollSocketChannel) channel).socket.setTcpCork(tcpCork);
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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 SO_BUSY_POLL} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setSoBusyPoll(int loopMicros) {
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try {
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((EpollSocketChannel) channel).socket.setSoBusyPoll(loopMicros);
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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_NOTSENT_LOWAT} option on the socket. See {@code man 7 tcp} for more details.
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* @param tcpNotSentLowAt is a uint32_t
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*/
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public EpollSocketChannelConfig setTcpNotSentLowAt(long tcpNotSentLowAt) {
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try {
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((EpollSocketChannel) channel).socket.setTcpNotSentLowAt(tcpNotSentLowAt);
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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 EpollSocketChannelConfig setTrafficClass(int trafficClass) {
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try {
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((EpollSocketChannel) 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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/**
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* Set the {@code TCP_KEEPIDLE} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setTcpKeepIdle(int seconds) {
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try {
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((EpollSocketChannel) channel).socket.setTcpKeepIdle(seconds);
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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_KEEPINTVL} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setTcpKeepIntvl(int seconds) {
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try {
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((EpollSocketChannel) channel).socket.setTcpKeepIntvl(seconds);
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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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* @deprecated use {@link #setTcpKeepCnt(int)}
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*/
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@Deprecated
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public EpollSocketChannelConfig setTcpKeepCntl(int probes) {
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return setTcpKeepCnt(probes);
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}
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/**
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* Set the {@code TCP_KEEPCNT} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setTcpKeepCnt(int probes) {
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try {
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((EpollSocketChannel) channel).socket.setTcpKeepCnt(probes);
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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_USER_TIMEOUT} option on the socket. See {@code man 7 tcp} for more details.
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*/
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public EpollSocketChannelConfig setTcpUserTimeout(int milliseconds) {
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try {
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((EpollSocketChannel) channel).socket.setTcpUserTimeout(milliseconds);
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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 ((EpollSocketChannel) 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 EpollSocketChannelConfig setIpTransparent(boolean transparent) {
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try {
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((EpollSocketChannel) 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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/**
|
|
* Set the {@code TCP_MD5SIG} option on the socket. See {@code linux/tcp.h} for more details.
|
|
* Keys can only be set on, not read to prevent a potential leak, as they are confidential.
|
|
* Allowing them being read would mean anyone with access to the channel could get them.
|
|
*/
|
|
public EpollSocketChannelConfig setTcpMd5Sig(Map<InetAddress, byte[]> keys) {
|
|
try {
|
|
((EpollSocketChannel) channel).setTcpMd5Sig(keys);
|
|
return this;
|
|
} catch (IOException e) {
|
|
throw new ChannelException(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the {@code TCP_QUICKACK} option on the socket. See <a href="http://linux.die.net/man/7/tcp">TCP_QUICKACK</a>
|
|
* for more details.
|
|
*/
|
|
public EpollSocketChannelConfig setTcpQuickAck(boolean quickAck) {
|
|
try {
|
|
((EpollSocketChannel) channel).socket.setTcpQuickAck(quickAck);
|
|
return this;
|
|
} catch (IOException e) {
|
|
throw new ChannelException(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns {@code true} if <a href="http://linux.die.net/man/7/tcp">TCP_QUICKACK</a> is enabled,
|
|
* {@code false} otherwise.
|
|
*/
|
|
public boolean isTcpQuickAck() {
|
|
try {
|
|
return ((EpollSocketChannel) channel).socket.isTcpQuickAck();
|
|
} catch (IOException e) {
|
|
throw new ChannelException(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the {@code TCP_FASTOPEN_CONNECT} option on the socket. Requires Linux kernel 4.11 or later.
|
|
* See
|
|
* <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=19f6d3f3">this commit</a>
|
|
* for more details.
|
|
*/
|
|
public EpollSocketChannelConfig setTcpFastOpenConnect(boolean fastOpenConnect) {
|
|
try {
|
|
((EpollSocketChannel) channel).socket.setTcpFastOpenConnect(fastOpenConnect);
|
|
return this;
|
|
} catch (IOException e) {
|
|
throw new ChannelException(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns {@code true} if {@code TCP_FASTOPEN_CONNECT} is enabled, {@code false} otherwise.
|
|
*/
|
|
public boolean isTcpFastOpenConnect() {
|
|
try {
|
|
return ((EpollSocketChannel) channel).socket.isTcpFastOpenConnect();
|
|
} catch (IOException e) {
|
|
throw new ChannelException(e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public boolean isAllowHalfClosure() {
|
|
return allowHalfClosure;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setAllowHalfClosure(boolean allowHalfClosure) {
|
|
this.allowHalfClosure = allowHalfClosure;
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
|
|
super.setConnectTimeoutMillis(connectTimeoutMillis);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
@Deprecated
|
|
public EpollSocketChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead) {
|
|
super.setMaxMessagesPerRead(maxMessagesPerRead);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setWriteSpinCount(int writeSpinCount) {
|
|
super.setWriteSpinCount(writeSpinCount);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setAllocator(ByteBufAllocator allocator) {
|
|
super.setAllocator(allocator);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator) {
|
|
super.setRecvByteBufAllocator(allocator);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setAutoRead(boolean autoRead) {
|
|
super.setAutoRead(autoRead);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setAutoClose(boolean autoClose) {
|
|
super.setAutoClose(autoClose);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
@Deprecated
|
|
public EpollSocketChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark) {
|
|
super.setWriteBufferHighWaterMark(writeBufferHighWaterMark);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
@Deprecated
|
|
public EpollSocketChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark) {
|
|
super.setWriteBufferLowWaterMark(writeBufferLowWaterMark);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark) {
|
|
super.setWriteBufferWaterMark(writeBufferWaterMark);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) {
|
|
super.setMessageSizeEstimator(estimator);
|
|
return this;
|
|
}
|
|
|
|
@Override
|
|
public EpollSocketChannelConfig setEpollMode(EpollMode mode) {
|
|
super.setEpollMode(mode);
|
|
return this;
|
|
}
|
|
|
|
private void calculateMaxBytesPerGatheringWrite() {
|
|
// Multiply by 2 to give some extra space in case the OS can process write data faster than we can provide.
|
|
int newSendBufferSize = getSendBufferSize() << 1;
|
|
if (newSendBufferSize > 0) {
|
|
setMaxBytesPerGatheringWrite(getSendBufferSize() << 1);
|
|
}
|
|
}
|
|
}
|