io.netty.channel.epoll.EpollSocketChannelConfig Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.channel.epoll;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelOption;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.RecvByteBufAllocator;
import io.netty.channel.WriteBufferWaterMark;
import io.netty.channel.socket.SocketChannelConfig;
import io.netty.util.internal.PlatformDependent;
import java.io.IOException;
import java.net.InetAddress;
import java.util.Map;
import static io.netty.channel.ChannelOption.ALLOW_HALF_CLOSURE;
import static io.netty.channel.ChannelOption.IP_TOS;
import static io.netty.channel.ChannelOption.SO_KEEPALIVE;
import static io.netty.channel.ChannelOption.SO_LINGER;
import static io.netty.channel.ChannelOption.SO_RCVBUF;
import static io.netty.channel.ChannelOption.SO_REUSEADDR;
import static io.netty.channel.ChannelOption.SO_SNDBUF;
import static io.netty.channel.ChannelOption.TCP_NODELAY;
public final class EpollSocketChannelConfig extends EpollChannelConfig implements SocketChannelConfig {
private volatile boolean allowHalfClosure;
private volatile boolean tcpFastopen;
/**
* Creates a new instance.
*/
EpollSocketChannelConfig(EpollSocketChannel channel) {
super(channel);
if (PlatformDependent.canEnableTcpNoDelayByDefault()) {
setTcpNoDelay(true);
}
calculateMaxBytesPerGatheringWrite();
}
@Override
public Map, Object> getOptions() {
return getOptions(
super.getOptions(),
SO_RCVBUF, SO_SNDBUF, TCP_NODELAY, SO_KEEPALIVE, SO_REUSEADDR, SO_LINGER, IP_TOS,
ALLOW_HALF_CLOSURE, EpollChannelOption.TCP_CORK, EpollChannelOption.TCP_NOTSENT_LOWAT,
EpollChannelOption.TCP_KEEPCNT, EpollChannelOption.TCP_KEEPIDLE, EpollChannelOption.TCP_KEEPINTVL,
EpollChannelOption.TCP_MD5SIG, EpollChannelOption.TCP_QUICKACK, EpollChannelOption.IP_TRANSPARENT,
ChannelOption.TCP_FASTOPEN_CONNECT, EpollChannelOption.SO_BUSY_POLL);
}
@SuppressWarnings("unchecked")
@Override
public T getOption(ChannelOption option) {
if (option == SO_RCVBUF) {
return (T) Integer.valueOf(getReceiveBufferSize());
}
if (option == SO_SNDBUF) {
return (T) Integer.valueOf(getSendBufferSize());
}
if (option == TCP_NODELAY) {
return (T) Boolean.valueOf(isTcpNoDelay());
}
if (option == SO_KEEPALIVE) {
return (T) Boolean.valueOf(isKeepAlive());
}
if (option == SO_REUSEADDR) {
return (T) Boolean.valueOf(isReuseAddress());
}
if (option == SO_LINGER) {
return (T) Integer.valueOf(getSoLinger());
}
if (option == IP_TOS) {
return (T) Integer.valueOf(getTrafficClass());
}
if (option == ALLOW_HALF_CLOSURE) {
return (T) Boolean.valueOf(isAllowHalfClosure());
}
if (option == EpollChannelOption.TCP_CORK) {
return (T) Boolean.valueOf(isTcpCork());
}
if (option == EpollChannelOption.TCP_NOTSENT_LOWAT) {
return (T) Long.valueOf(getTcpNotSentLowAt());
}
if (option == EpollChannelOption.TCP_KEEPIDLE) {
return (T) Integer.valueOf(getTcpKeepIdle());
}
if (option == EpollChannelOption.TCP_KEEPINTVL) {
return (T) Integer.valueOf(getTcpKeepIntvl());
}
if (option == EpollChannelOption.TCP_KEEPCNT) {
return (T) Integer.valueOf(getTcpKeepCnt());
}
if (option == EpollChannelOption.TCP_USER_TIMEOUT) {
return (T) Integer.valueOf(getTcpUserTimeout());
}
if (option == EpollChannelOption.TCP_QUICKACK) {
return (T) Boolean.valueOf(isTcpQuickAck());
}
if (option == EpollChannelOption.IP_TRANSPARENT) {
return (T) Boolean.valueOf(isIpTransparent());
}
if (option == ChannelOption.TCP_FASTOPEN_CONNECT) {
return (T) Boolean.valueOf(isTcpFastOpenConnect());
}
if (option == EpollChannelOption.SO_BUSY_POLL) {
return (T) Integer.valueOf(getSoBusyPoll());
}
return super.getOption(option);
}
@Override
public boolean setOption(ChannelOption option, T value) {
validate(option, value);
if (option == SO_RCVBUF) {
setReceiveBufferSize((Integer) value);
} else if (option == SO_SNDBUF) {
setSendBufferSize((Integer) value);
} else if (option == TCP_NODELAY) {
setTcpNoDelay((Boolean) value);
} else if (option == SO_KEEPALIVE) {
setKeepAlive((Boolean) value);
} else if (option == SO_REUSEADDR) {
setReuseAddress((Boolean) value);
} else if (option == SO_LINGER) {
setSoLinger((Integer) value);
} else if (option == IP_TOS) {
setTrafficClass((Integer) value);
} else if (option == ALLOW_HALF_CLOSURE) {
setAllowHalfClosure((Boolean) value);
} else if (option == EpollChannelOption.TCP_CORK) {
setTcpCork((Boolean) value);
} else if (option == EpollChannelOption.TCP_NOTSENT_LOWAT) {
setTcpNotSentLowAt((Long) value);
} else if (option == EpollChannelOption.TCP_KEEPIDLE) {
setTcpKeepIdle((Integer) value);
} else if (option == EpollChannelOption.TCP_KEEPCNT) {
setTcpKeepCnt((Integer) value);
} else if (option == EpollChannelOption.TCP_KEEPINTVL) {
setTcpKeepIntvl((Integer) value);
} else if (option == EpollChannelOption.TCP_USER_TIMEOUT) {
setTcpUserTimeout((Integer) value);
} else if (option == EpollChannelOption.IP_TRANSPARENT) {
setIpTransparent((Boolean) value);
} else if (option == EpollChannelOption.TCP_MD5SIG) {
@SuppressWarnings("unchecked")
final Map m = (Map) value;
setTcpMd5Sig(m);
} else if (option == EpollChannelOption.TCP_QUICKACK) {
setTcpQuickAck((Boolean) value);
} else if (option == ChannelOption.TCP_FASTOPEN_CONNECT) {
setTcpFastOpenConnect((Boolean) value);
} else if (option == EpollChannelOption.SO_BUSY_POLL) {
setSoBusyPoll((Integer) value);
} else {
return super.setOption(option, value);
}
return true;
}
@Override
public int getReceiveBufferSize() {
try {
return ((EpollSocketChannel) channel).socket.getReceiveBufferSize();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public int getSendBufferSize() {
try {
return ((EpollSocketChannel) channel).socket.getSendBufferSize();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public int getSoLinger() {
try {
return ((EpollSocketChannel) channel).socket.getSoLinger();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public int getTrafficClass() {
try {
return ((EpollSocketChannel) channel).socket.getTrafficClass();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public boolean isKeepAlive() {
try {
return ((EpollSocketChannel) channel).socket.isKeepAlive();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public boolean isReuseAddress() {
try {
return ((EpollSocketChannel) channel).socket.isReuseAddress();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public boolean isTcpNoDelay() {
try {
return ((EpollSocketChannel) channel).socket.isTcpNoDelay();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_CORK} option on the socket. See {@code man 7 tcp} for more details.
*/
public boolean isTcpCork() {
try {
return ((EpollSocketChannel) channel).socket.isTcpCork();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code SO_BUSY_POLL} option on the socket. See {@code man 7 tcp} for more details.
*/
public int getSoBusyPoll() {
try {
return ((EpollSocketChannel) channel).socket.getSoBusyPoll();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_NOTSENT_LOWAT} option on the socket. See {@code man 7 tcp} for more details.
* @return value is a uint32_t
*/
public long getTcpNotSentLowAt() {
try {
return ((EpollSocketChannel) channel).socket.getTcpNotSentLowAt();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_KEEPIDLE} option on the socket. See {@code man 7 tcp} for more details.
*/
public int getTcpKeepIdle() {
try {
return ((EpollSocketChannel) channel).socket.getTcpKeepIdle();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_KEEPINTVL} option on the socket. See {@code man 7 tcp} for more details.
*/
public int getTcpKeepIntvl() {
try {
return ((EpollSocketChannel) channel).socket.getTcpKeepIntvl();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_KEEPCNT} option on the socket. See {@code man 7 tcp} for more details.
*/
public int getTcpKeepCnt() {
try {
return ((EpollSocketChannel) channel).socket.getTcpKeepCnt();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Get the {@code TCP_USER_TIMEOUT} option on the socket. See {@code man 7 tcp} for more details.
*/
public int getTcpUserTimeout() {
try {
return ((EpollSocketChannel) channel).socket.getTcpUserTimeout();
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setKeepAlive(boolean keepAlive) {
try {
((EpollSocketChannel) channel).socket.setKeepAlive(keepAlive);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setPerformancePreferences(
int connectionTime, int latency, int bandwidth) {
return this;
}
@Override
public EpollSocketChannelConfig setReceiveBufferSize(int receiveBufferSize) {
try {
((EpollSocketChannel) channel).socket.setReceiveBufferSize(receiveBufferSize);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setReuseAddress(boolean reuseAddress) {
try {
((EpollSocketChannel) channel).socket.setReuseAddress(reuseAddress);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setSendBufferSize(int sendBufferSize) {
try {
((EpollSocketChannel) channel).socket.setSendBufferSize(sendBufferSize);
calculateMaxBytesPerGatheringWrite();
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setSoLinger(int soLinger) {
try {
((EpollSocketChannel) channel).socket.setSoLinger(soLinger);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setTcpNoDelay(boolean tcpNoDelay) {
try {
((EpollSocketChannel) channel).socket.setTcpNoDelay(tcpNoDelay);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code TCP_CORK} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setTcpCork(boolean tcpCork) {
try {
((EpollSocketChannel) channel).socket.setTcpCork(tcpCork);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code SO_BUSY_POLL} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setSoBusyPoll(int loopMicros) {
try {
((EpollSocketChannel) channel).socket.setSoBusyPoll(loopMicros);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code TCP_NOTSENT_LOWAT} option on the socket. See {@code man 7 tcp} for more details.
* @param tcpNotSentLowAt is a uint32_t
*/
public EpollSocketChannelConfig setTcpNotSentLowAt(long tcpNotSentLowAt) {
try {
((EpollSocketChannel) channel).socket.setTcpNotSentLowAt(tcpNotSentLowAt);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public EpollSocketChannelConfig setTrafficClass(int trafficClass) {
try {
((EpollSocketChannel) channel).socket.setTrafficClass(trafficClass);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code TCP_KEEPIDLE} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setTcpKeepIdle(int seconds) {
try {
((EpollSocketChannel) channel).socket.setTcpKeepIdle(seconds);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code TCP_KEEPINTVL} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setTcpKeepIntvl(int seconds) {
try {
((EpollSocketChannel) channel).socket.setTcpKeepIntvl(seconds);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* @deprecated use {@link #setTcpKeepCnt(int)}
*/
@Deprecated
public EpollSocketChannelConfig setTcpKeepCntl(int probes) {
return setTcpKeepCnt(probes);
}
/**
* Set the {@code TCP_KEEPCNT} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setTcpKeepCnt(int probes) {
try {
((EpollSocketChannel) channel).socket.setTcpKeepCnt(probes);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Set the {@code TCP_USER_TIMEOUT} option on the socket. See {@code man 7 tcp} for more details.
*/
public EpollSocketChannelConfig setTcpUserTimeout(int milliseconds) {
try {
((EpollSocketChannel) channel).socket.setTcpUserTimeout(milliseconds);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Returns {@code true} if IP_TRANSPARENT is enabled,
* {@code false} otherwise.
*/
public boolean isIpTransparent() {
try {
return ((EpollSocketChannel) channel).socket.isIpTransparent();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* If {@code true} is used IP_TRANSPARENT is enabled,
* {@code false} for disable it. Default is disabled.
*/
public EpollSocketChannelConfig setIpTransparent(boolean transparent) {
try {
((EpollSocketChannel) channel).socket.setIpTransparent(transparent);
return this;
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* 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 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 TCP_QUICKACK
* 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 TCP_QUICKACK is enabled,
* {@code false} otherwise.
*/
public boolean isTcpQuickAck() {
try {
return ((EpollSocketChannel) channel).socket.isTcpQuickAck();
} catch (IOException e) {
throw new ChannelException(e);
}
}
/**
* Enables client TCP fast open. {@code TCP_FASTOPEN_CONNECT} normally
* requires Linux kernel 4.11 or later, so instead we use the traditional fast open
* client socket mechanics that work with kernel 3.6 and later. See this
* LWN article for more info.
*/
public EpollSocketChannelConfig setTcpFastOpenConnect(boolean fastOpenConnect) {
tcpFastopen = fastOpenConnect;
return this;
}
/**
* Returns {@code true} if TCP fast open is enabled, {@code false} otherwise.
*/
public boolean isTcpFastOpenConnect() {
return tcpFastopen;
}
@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(newSendBufferSize);
}
}
}