java.lang.Object
- io.netty.channel.DefaultChannelConfig
- - io.netty.channel.epoll.EpollChannelConfig
  - - io.netty.channel.epoll.EpollSocketChannelConfig

All Implemented Interfaces:

io.netty.channel.ChannelConfig, io.netty.channel.socket.DuplexChannelConfig, io.netty.channel.socket.SocketChannelConfig
```
public final class EpollSocketChannelConfig
extends EpollChannelConfig
implements io.netty.channel.socket.SocketChannelConfig
```

Field Summary
- Fields inherited from class io.netty.channel.DefaultChannelConfig
  channel

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`<T> T`	`getOption(io.netty.channel.ChannelOption<T> option)`
`Map<io.netty.channel.ChannelOption<?>,Object>`	`getOptions()`
`int`	`getReceiveBufferSize()`
`int`	`getSendBufferSize()`
`int`	`getSoBusyPoll()`	Get the `SO_BUSY_POLL` option on the socket.
`int`	`getSoLinger()`
`int`	`getTcpKeepCnt()`	Get the `TCP_KEEPCNT` option on the socket.
`int`	`getTcpKeepIdle()`	Get the `TCP_KEEPIDLE` option on the socket.
`int`	`getTcpKeepIntvl()`	Get the `TCP_KEEPINTVL` option on the socket.
`long`	`getTcpNotSentLowAt()`	Get the `TCP_NOTSENT_LOWAT` option on the socket.
`int`	`getTcpUserTimeout()`	Get the `TCP_USER_TIMEOUT` option on the socket.
`int`	`getTrafficClass()`
`boolean`	`isAllowHalfClosure()`
`boolean`	`isIpBindAddressNoPort()`	Returns `true` if the IP_BIND_ADDRESS_NO_PORT option is set.
`boolean`	`isIpTransparent()`	Returns `true` if IP_TRANSPARENT is enabled, `false` otherwise.
`boolean`	`isKeepAlive()`
`boolean`	`isReuseAddress()`
`boolean`	`isTcpCork()`	Get the `TCP_CORK` option on the socket.
`boolean`	`isTcpFastOpenConnect()`	Returns `true` if TCP fast open is enabled, `false` otherwise.
`boolean`	`isTcpNoDelay()`
`boolean`	`isTcpQuickAck()`	Returns `true` if TCP_QUICKACK is enabled, `false` otherwise.
`EpollSocketChannelConfig`	`setAllocator(io.netty.buffer.ByteBufAllocator allocator)`
`EpollSocketChannelConfig`	`setAllowHalfClosure(boolean allowHalfClosure)`
`EpollSocketChannelConfig`	`setAutoClose(boolean autoClose)`
`EpollSocketChannelConfig`	`setAutoRead(boolean autoRead)`
`EpollSocketChannelConfig`	`setConnectTimeoutMillis(int connectTimeoutMillis)`
`EpollSocketChannelConfig`	`setEpollMode(EpollMode mode)`	Set the `EpollMode` used.
`EpollSocketChannelConfig`	`setIpBindAddressNoPort(boolean ipBindAddressNoPort)`	Set the IP_BIND_ADDRESS_NO_PORT option on the underlying Channel.
`EpollSocketChannelConfig`	`setIpTransparent(boolean transparent)`	If `true` is used IP_TRANSPARENT is enabled, `false` for disable it.
`EpollSocketChannelConfig`	`setKeepAlive(boolean keepAlive)`
`EpollSocketChannelConfig`	`setMaxMessagesPerRead(int maxMessagesPerRead)`	Deprecated.
`EpollSocketChannelConfig`	`setMessageSizeEstimator(io.netty.channel.MessageSizeEstimator estimator)`
`<T> boolean`	`setOption(io.netty.channel.ChannelOption<T> option, T value)`
`EpollSocketChannelConfig`	`setPerformancePreferences(int connectionTime, int latency, int bandwidth)`
`EpollSocketChannelConfig`	`setReceiveBufferSize(int receiveBufferSize)`
`EpollSocketChannelConfig`	`setRecvByteBufAllocator(io.netty.channel.RecvByteBufAllocator allocator)`
`EpollSocketChannelConfig`	`setReuseAddress(boolean reuseAddress)`
`EpollSocketChannelConfig`	`setSendBufferSize(int sendBufferSize)`
`EpollSocketChannelConfig`	`setSoBusyPoll(int loopMicros)`	Set the `SO_BUSY_POLL` option on the socket.
`EpollSocketChannelConfig`	`setSoLinger(int soLinger)`
`EpollSocketChannelConfig`	`setTcpCork(boolean tcpCork)`	Set the `TCP_CORK` option on the socket.
`EpollSocketChannelConfig`	`setTcpFastOpenConnect(boolean fastOpenConnect)`	Enables client TCP fast open.
`EpollSocketChannelConfig`	`setTcpKeepCnt(int probes)`	Set the `TCP_KEEPCNT` option on the socket.
`EpollSocketChannelConfig`	`setTcpKeepCntl(int probes)`	Deprecated. use `setTcpKeepCnt(int)`
`EpollSocketChannelConfig`	`setTcpKeepIdle(int seconds)`	Set the `TCP_KEEPIDLE` option on the socket.
`EpollSocketChannelConfig`	`setTcpKeepIntvl(int seconds)`	Set the `TCP_KEEPINTVL` option on the socket.
`EpollSocketChannelConfig`	`setTcpMd5Sig(Map<InetAddress,byte[]> keys)`	Set the `TCP_MD5SIG` option on the socket.
`EpollSocketChannelConfig`	`setTcpNoDelay(boolean tcpNoDelay)`
`EpollSocketChannelConfig`	`setTcpNotSentLowAt(long tcpNotSentLowAt)`	Set the `TCP_NOTSENT_LOWAT` option on the socket.
`EpollSocketChannelConfig`	`setTcpQuickAck(boolean quickAck)`	Set the `TCP_QUICKACK` option on the socket.
`EpollSocketChannelConfig`	`setTcpUserTimeout(int milliseconds)`	Set the `TCP_USER_TIMEOUT` option on the socket.
`EpollSocketChannelConfig`	`setTrafficClass(int trafficClass)`
`EpollSocketChannelConfig`	`setWriteBufferHighWaterMark(int writeBufferHighWaterMark)`	Deprecated.
`EpollSocketChannelConfig`	`setWriteBufferLowWaterMark(int writeBufferLowWaterMark)`	Deprecated.
`EpollSocketChannelConfig`	`setWriteBufferWaterMark(io.netty.channel.WriteBufferWaterMark writeBufferWaterMark)`
`EpollSocketChannelConfig`	`setWriteSpinCount(int writeSpinCount)`

Methods inherited from class io.netty.channel.epoll.EpollChannelConfig
autoReadCleared, getEpollMode, getMaxBytesPerGatheringWrite, setMaxBytesPerGatheringWrite, socket

Methods inherited from class io.netty.channel.DefaultChannelConfig
getAllocator, getConnectTimeoutMillis, getMaxMessagesPerRead, getMaxMessagesPerWrite, getMessageSizeEstimator, getOptions, getRecvByteBufAllocator, getWriteBufferHighWaterMark, getWriteBufferLowWaterMark, getWriteBufferWaterMark, getWriteSpinCount, isAutoClose, isAutoRead, setMaxMessagesPerWrite, setOptions, validate

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelConfig
getAllocator, getConnectTimeoutMillis, getMaxMessagesPerRead, getMessageSizeEstimator, getRecvByteBufAllocator, getWriteBufferHighWaterMark, getWriteBufferLowWaterMark, getWriteBufferWaterMark, getWriteSpinCount, isAutoClose, isAutoRead, setOptions

- Method Detail
  - getOptions
```
public Map<io.netty.channel.ChannelOption<?>,Object> getOptions()
```
    Specified by:
    
    getOptions in interface io.netty.channel.ChannelConfig
    
    Overrides:
    
    getOptions in class EpollChannelConfig
  - getOption
```
public <T> T getOption(io.netty.channel.ChannelOption<T> option)
```
    Specified by:
    
    getOption in interface io.netty.channel.ChannelConfig
    
    Overrides:
    
    getOption in class EpollChannelConfig
  - setOption
```
public <T> boolean setOption(io.netty.channel.ChannelOption<T> option,
                             T value)
```
    Specified by:
    
    setOption in interface io.netty.channel.ChannelConfig
    
    Overrides:
    
    setOption in class EpollChannelConfig
  - getReceiveBufferSize
```
public int getReceiveBufferSize()
```
    Specified by:
    
    getReceiveBufferSize in interface io.netty.channel.socket.SocketChannelConfig
  - getSendBufferSize
```
public int getSendBufferSize()
```
    Specified by:
    
    getSendBufferSize in interface io.netty.channel.socket.SocketChannelConfig
  - getSoLinger
```
public int getSoLinger()
```
    Specified by:
    
    getSoLinger in interface io.netty.channel.socket.SocketChannelConfig
  - getTrafficClass
```
public int getTrafficClass()
```
    Specified by:
    
    getTrafficClass in interface io.netty.channel.socket.SocketChannelConfig
  - isKeepAlive
```
public boolean isKeepAlive()
```
    Specified by:
    
    isKeepAlive in interface io.netty.channel.socket.SocketChannelConfig
  - isReuseAddress
```
public boolean isReuseAddress()
```
    Specified by:
    
    isReuseAddress in interface io.netty.channel.socket.SocketChannelConfig
  - isTcpNoDelay
```
public boolean isTcpNoDelay()
```
    Specified by:
    
    isTcpNoDelay in interface io.netty.channel.socket.SocketChannelConfig
  - isTcpCork
```
public boolean isTcpCork()
```
    Get the TCP_CORK option on the socket. See man 7 tcp for more details.
  - getSoBusyPoll
```
public int getSoBusyPoll()
```
    Get the SO_BUSY_POLL option on the socket. See man 7 tcp for more details.
  - getTcpNotSentLowAt
```
public long getTcpNotSentLowAt()
```
    Get the TCP_NOTSENT_LOWAT option on the socket. See man 7 tcp for more details.
    
    Returns:
    
    value is a uint32_t
  - getTcpKeepIdle
```
public int getTcpKeepIdle()
```
    Get the TCP_KEEPIDLE option on the socket. See man 7 tcp for more details.
  - getTcpKeepIntvl
```
public int getTcpKeepIntvl()
```
    Get the TCP_KEEPINTVL option on the socket. See man 7 tcp for more details.
  - getTcpKeepCnt
```
public int getTcpKeepCnt()
```
    Get the TCP_KEEPCNT option on the socket. See man 7 tcp for more details.
  - getTcpUserTimeout
```
public int getTcpUserTimeout()
```
    Get the TCP_USER_TIMEOUT option on the socket. See man 7 tcp for more details.
  - setKeepAlive
```
public EpollSocketChannelConfig setKeepAlive(boolean keepAlive)
```
    Specified by:
    
    setKeepAlive in interface io.netty.channel.socket.SocketChannelConfig
  - setPerformancePreferences
```
public EpollSocketChannelConfig setPerformancePreferences(int connectionTime,
                                                          int latency,
                                                          int bandwidth)
```
    Specified by:
    
    setPerformancePreferences in interface io.netty.channel.socket.SocketChannelConfig
  - setReceiveBufferSize
```
public EpollSocketChannelConfig setReceiveBufferSize(int receiveBufferSize)
```
    Specified by:
    
    setReceiveBufferSize in interface io.netty.channel.socket.SocketChannelConfig
  - setReuseAddress
```
public EpollSocketChannelConfig setReuseAddress(boolean reuseAddress)
```
    Specified by:
    
    setReuseAddress in interface io.netty.channel.socket.SocketChannelConfig
  - setSendBufferSize
```
public EpollSocketChannelConfig setSendBufferSize(int sendBufferSize)
```
    Specified by:
    
    setSendBufferSize in interface io.netty.channel.socket.SocketChannelConfig
  - setSoLinger
```
public EpollSocketChannelConfig setSoLinger(int soLinger)
```
    Specified by:
    
    setSoLinger in interface io.netty.channel.socket.SocketChannelConfig
  - setTcpNoDelay
```
public EpollSocketChannelConfig setTcpNoDelay(boolean tcpNoDelay)
```
    Specified by:
    
    setTcpNoDelay in interface io.netty.channel.socket.SocketChannelConfig
  - setTcpCork
```
public EpollSocketChannelConfig setTcpCork(boolean tcpCork)
```
    Set the TCP_CORK option on the socket. See man 7 tcp for more details.
  - setSoBusyPoll
```
public EpollSocketChannelConfig setSoBusyPoll(int loopMicros)
```
    Set the SO_BUSY_POLL option on the socket. See man 7 tcp for more details.
  - setTcpNotSentLowAt
```
public EpollSocketChannelConfig setTcpNotSentLowAt(long tcpNotSentLowAt)
```
    Set the TCP_NOTSENT_LOWAT option on the socket. See man 7 tcp for more details.
    
    Parameters:
    
    tcpNotSentLowAt - is a uint32_t
  - setTrafficClass
```
public EpollSocketChannelConfig setTrafficClass(int trafficClass)
```
    Specified by:
    
    setTrafficClass in interface io.netty.channel.socket.SocketChannelConfig
  - setTcpKeepIdle
```
public EpollSocketChannelConfig setTcpKeepIdle(int seconds)
```
    Set the TCP_KEEPIDLE option on the socket. See man 7 tcp for more details.
  - setTcpKeepIntvl
```
public EpollSocketChannelConfig setTcpKeepIntvl(int seconds)
```
    Set the TCP_KEEPINTVL option on the socket. See man 7 tcp for more details.
  - setTcpKeepCntl
```
@Deprecated
public EpollSocketChannelConfig setTcpKeepCntl(int probes)
```
    Deprecated.
    use setTcpKeepCnt(int)
  - setTcpKeepCnt
```
public EpollSocketChannelConfig setTcpKeepCnt(int probes)
```
    Set the TCP_KEEPCNT option on the socket. See man 7 tcp for more details.
  - setTcpUserTimeout
```
public EpollSocketChannelConfig setTcpUserTimeout(int milliseconds)
```
    Set the TCP_USER_TIMEOUT option on the socket. See man 7 tcp for more details.
  - isIpBindAddressNoPort
```
public boolean isIpBindAddressNoPort()
```
    Returns true if the IP_BIND_ADDRESS_NO_PORT option is set.
  - setIpBindAddressNoPort
```
public EpollSocketChannelConfig setIpBindAddressNoPort(boolean ipBindAddressNoPort)
```
    Set the IP_BIND_ADDRESS_NO_PORT option on the underlying Channel. Be aware this method needs be called before Channel.bind(java.net.SocketAddress) to have any affect.
  - isIpTransparent
```
public boolean isIpTransparent()
```
    Returns true if IP_TRANSPARENT is enabled, false otherwise.
  - setIpTransparent
```
public EpollSocketChannelConfig setIpTransparent(boolean transparent)
```
    If true is used IP_TRANSPARENT is enabled, false for disable it. Default is disabled.
  - setTcpMd5Sig
```
public EpollSocketChannelConfig setTcpMd5Sig(Map<InetAddress,byte[]> keys)
```
    Set the TCP_MD5SIG option on the socket. See 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.
  - setTcpQuickAck
```
public EpollSocketChannelConfig setTcpQuickAck(boolean quickAck)
```
    Set the TCP_QUICKACK option on the socket. See TCP_QUICKACK for more details.
  - isTcpQuickAck
```
public boolean isTcpQuickAck()
```
    Returns true if TCP_QUICKACK is enabled, false otherwise.
  - setTcpFastOpenConnect
```
public EpollSocketChannelConfig setTcpFastOpenConnect(boolean fastOpenConnect)
```
    Enables client TCP fast open. 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.
  - isTcpFastOpenConnect
```
public boolean isTcpFastOpenConnect()
```
    Returns true if TCP fast open is enabled, false otherwise.
  - isAllowHalfClosure
```
public boolean isAllowHalfClosure()
```
    Specified by:
    
    isAllowHalfClosure in interface io.netty.channel.socket.DuplexChannelConfig
  - setAllowHalfClosure
```
public EpollSocketChannelConfig setAllowHalfClosure(boolean allowHalfClosure)
```
    Specified by:
    
    setAllowHalfClosure in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setAllowHalfClosure in interface io.netty.channel.socket.SocketChannelConfig
  - setConnectTimeoutMillis
```
public EpollSocketChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis)
```
    Specified by:
    
    setConnectTimeoutMillis in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setConnectTimeoutMillis in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setConnectTimeoutMillis in class EpollChannelConfig
  - setMaxMessagesPerRead
```
@Deprecated
public EpollSocketChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead)
```
    Deprecated.
    
    Specified by:
    
    setMaxMessagesPerRead in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setMaxMessagesPerRead in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setMaxMessagesPerRead in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setMaxMessagesPerRead in class EpollChannelConfig
  - setWriteSpinCount
```
public EpollSocketChannelConfig setWriteSpinCount(int writeSpinCount)
```
    Specified by:
    
    setWriteSpinCount in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setWriteSpinCount in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setWriteSpinCount in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setWriteSpinCount in class EpollChannelConfig
  - setAllocator
```
public EpollSocketChannelConfig setAllocator(io.netty.buffer.ByteBufAllocator allocator)
```
    Specified by:
    
    setAllocator in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setAllocator in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setAllocator in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setAllocator in class EpollChannelConfig
  - setRecvByteBufAllocator
```
public EpollSocketChannelConfig setRecvByteBufAllocator(io.netty.channel.RecvByteBufAllocator allocator)
```
    Specified by:
    
    setRecvByteBufAllocator in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setRecvByteBufAllocator in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setRecvByteBufAllocator in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setRecvByteBufAllocator in class EpollChannelConfig
  - setAutoRead
```
public EpollSocketChannelConfig setAutoRead(boolean autoRead)
```
    Specified by:
    
    setAutoRead in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setAutoRead in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setAutoRead in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setAutoRead in class EpollChannelConfig
  - setAutoClose
```
public EpollSocketChannelConfig setAutoClose(boolean autoClose)
```
    Specified by:
    
    setAutoClose in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setAutoClose in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setAutoClose in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setAutoClose in class io.netty.channel.DefaultChannelConfig
  - setWriteBufferHighWaterMark
```
@Deprecated
public EpollSocketChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark)
```
    Deprecated.
    
    Specified by:
    
    setWriteBufferHighWaterMark in interface io.netty.channel.ChannelConfig
    
    Overrides:
    
    setWriteBufferHighWaterMark in class EpollChannelConfig
  - setWriteBufferLowWaterMark
```
@Deprecated
public EpollSocketChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark)
```
    Deprecated.
    
    Specified by:
    
    setWriteBufferLowWaterMark in interface io.netty.channel.ChannelConfig
    
    Overrides:
    
    setWriteBufferLowWaterMark in class EpollChannelConfig
  - setWriteBufferWaterMark
```
public EpollSocketChannelConfig setWriteBufferWaterMark(io.netty.channel.WriteBufferWaterMark writeBufferWaterMark)
```
    Specified by:
    
    setWriteBufferWaterMark in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setWriteBufferWaterMark in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setWriteBufferWaterMark in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setWriteBufferWaterMark in class EpollChannelConfig
  - setMessageSizeEstimator
```
public EpollSocketChannelConfig setMessageSizeEstimator(io.netty.channel.MessageSizeEstimator estimator)
```
    Specified by:
    
    setMessageSizeEstimator in interface io.netty.channel.ChannelConfig
    
    Specified by:
    
    setMessageSizeEstimator in interface io.netty.channel.socket.DuplexChannelConfig
    
    Specified by:
    
    setMessageSizeEstimator in interface io.netty.channel.socket.SocketChannelConfig
    
    Overrides:
    
    setMessageSizeEstimator in class EpollChannelConfig
  - setEpollMode
```
public EpollSocketChannelConfig setEpollMode(EpollMode mode)
```
    Description copied from class: EpollChannelConfig
    
    Set the EpollMode used. Default is EpollMode.EDGE_TRIGGERED. If you want to use DefaultChannelConfig.isAutoRead() false or DefaultChannelConfig.getMaxMessagesPerRead() and have an accurate behaviour you should use EpollMode.LEVEL_TRIGGERED. Be aware this config setting can only be adjusted before the channel was registered.
    
    Overrides:
    
    setEpollMode in class EpollChannelConfig

Class EpollSocketChannelConfig

Field Summary

Fields inherited from class io.netty.channel.DefaultChannelConfig

Method Summary

Methods inherited from class io.netty.channel.epoll.EpollChannelConfig

Methods inherited from class io.netty.channel.DefaultChannelConfig

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.channel.ChannelConfig

Method Detail

getOptions

getOption

setOption

getReceiveBufferSize

getSendBufferSize

getSoLinger

getTrafficClass

isKeepAlive

isReuseAddress

isTcpNoDelay

isTcpCork

getSoBusyPoll

getTcpNotSentLowAt

getTcpKeepIdle

getTcpKeepIntvl

getTcpKeepCnt

getTcpUserTimeout

setKeepAlive

setPerformancePreferences

setReceiveBufferSize

setReuseAddress

setSendBufferSize

setSoLinger

setTcpNoDelay

setTcpCork

setSoBusyPoll

setTcpNotSentLowAt

setTrafficClass

setTcpKeepIdle

setTcpKeepIntvl

setTcpKeepCntl

setTcpKeepCnt

setTcpUserTimeout

isIpBindAddressNoPort

setIpBindAddressNoPort

isIpTransparent

setIpTransparent

setTcpMd5Sig

setTcpQuickAck

isTcpQuickAck

setTcpFastOpenConnect

isTcpFastOpenConnect

isAllowHalfClosure

setAllowHalfClosure

setConnectTimeoutMillis

setMaxMessagesPerRead

setWriteSpinCount

setAllocator

setRecvByteBufAllocator

setAutoRead

setAutoClose

setWriteBufferHighWaterMark

setWriteBufferLowWaterMark

setWriteBufferWaterMark

setMessageSizeEstimator

setEpollMode