java.lang.Object
- io.netty.util.DefaultAttributeMap
- - io.netty.channel.AbstractChannel
  - - io.netty.channel.epoll.AbstractEpollStreamChannel
    - - io.netty.channel.epoll.EpollSocketChannel

All Implemented Interfaces:

io.netty.channel.Channel, io.netty.channel.ChannelOutboundInvoker, io.netty.channel.socket.DuplexChannel, io.netty.channel.socket.SocketChannel, io.netty.channel.unix.UnixChannel, io.netty.util.AttributeMap, Comparable<io.netty.channel.Channel>
```
public final class EpollSocketChannel
extends AbstractEpollStreamChannel
implements io.netty.channel.socket.SocketChannel
```
SocketChannel implementation that uses linux EPOLL Edge-Triggered Mode for maximal performance.

Nested Class Summary
- Nested classes/interfaces inherited from class io.netty.channel.epoll.AbstractEpollStreamChannel
  AbstractEpollStreamChannel.SpliceInTask
- Nested classes/interfaces inherited from class io.netty.channel.AbstractChannel
  io.netty.channel.AbstractChannel.AbstractUnsafe
- Nested classes/interfaces inherited from interface io.netty.channel.Channel
  io.netty.channel.Channel.Unsafe

Field Summary

Fields
Modifier and Type Field Description

protected boolean active

protected LinuxSocket socket

Constructor Summary

Constructors
Constructor	Description
`EpollSocketChannel()`
`EpollSocketChannel(int fd)`
`EpollSocketChannel(io.netty.channel.socket.InternetProtocolFamily protocol)`	Deprecated. use `EpollServerSocketChannel(SocketProtocolFamily)`.
`EpollSocketChannel(io.netty.channel.socket.SocketProtocolFamily protocol)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected static void`	`checkResolvable(InetSocketAddress addr)`
`EpollSocketChannelConfig`	`config()`
`protected void`	`doBeginRead()`
`protected void`	`doBind(SocketAddress local)`
`protected boolean`	`doConnect(SocketAddress remoteAddress, SocketAddress localAddress)`	Connect to the remote peer
`protected void`	`doDeregister()`
`protected void`	`doDisconnect()`
`protected int`	`doReadBytes(io.netty.buffer.ByteBuf byteBuf)`	Read bytes into the given `ByteBuf` and return the amount.
`protected void`	`doRegister(io.netty.channel.ChannelPromise promise)`
`protected int`	`doWriteBytes(io.netty.channel.ChannelOutboundBuffer in, io.netty.buffer.ByteBuf buf)`
`io.netty.channel.unix.FileDescriptor`	`fd()`
`boolean`	`isActive()`
`protected boolean`	`isCompatible(io.netty.channel.EventLoop loop)`
`boolean`	`isOpen()`
`InetSocketAddress`	`localAddress()`
`protected SocketAddress`	`localAddress0()`
`protected io.netty.buffer.ByteBuf`	`newDirectBuffer(io.netty.buffer.ByteBuf buf)`	Returns an off-heap copy of the specified `ByteBuf`, and releases the original one.
`protected io.netty.buffer.ByteBuf`	`newDirectBuffer(Object holder, io.netty.buffer.ByteBuf buf)`	Returns an off-heap copy of the specified `ByteBuf`, and releases the specified holder.
`protected io.netty.channel.epoll.AbstractEpollChannel.AbstractEpollUnsafe`	`newUnsafe()`
`io.netty.channel.socket.ServerSocketChannel`	`parent()`
`protected io.netty.channel.IoRegistration`	`registration()`
`InetSocketAddress`	`remoteAddress()`
`protected SocketAddress`	`remoteAddress0()`
`protected void`	`setFlag(int flag)`
`EpollTcpInfo`	`tcpInfo()`	Returns the `TCP_INFO` for the current socket.
`EpollTcpInfo`	`tcpInfo(EpollTcpInfo info)`	Updates and returns the `TCP_INFO` for the current socket.

Methods inherited from class io.netty.channel.epoll.AbstractEpollStreamChannel
doClose, doShutdownOutput, doWrite, doWriteSingle, filterOutboundMessage, isInputShutdown, isOutputShutdown, isShutdown, metadata, shutdown, shutdown, shutdownInput, shutdownInput, shutdownOutput, shutdownOutput, spliceTo, spliceTo, spliceTo, spliceTo

Methods inherited from class io.netty.channel.AbstractChannel
closeFuture, compareTo, doRegister, equals, eventLoop, hashCode, id, invalidateLocalAddress, invalidateRemoteAddress, isRegistered, maxMessagesPerWrite, newChannelPipeline, newId, pipeline, toString, unsafe, validateFileRegion, voidPromise

Methods inherited from class io.netty.util.DefaultAttributeMap
attr, hasAttr

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

Methods inherited from interface io.netty.util.AttributeMap
attr, hasAttr

Methods inherited from interface io.netty.channel.Channel
alloc, bind, bind, bytesBeforeUnwritable, bytesBeforeWritable, close, close, closeFuture, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, eventLoop, flush, getOption, id, isActive, isOpen, isRegistered, isWritable, metadata, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, pipeline, read, setOption, unsafe, voidPromise, write, write, writeAndFlush, writeAndFlush

Methods inherited from interface java.lang.Comparable
compareTo

Methods inherited from interface io.netty.channel.socket.DuplexChannel
isInputShutdown, isOutputShutdown, isShutdown, shutdown, shutdown, shutdownInput, shutdownInput, shutdownOutput, shutdownOutput

- Field Detail
  - socket
```
protected final LinuxSocket socket
```
  - active
```
protected volatile boolean active
```
- Constructor Detail
  - EpollSocketChannel
```
public EpollSocketChannel()
```
  - EpollSocketChannel
```
@Deprecated
public EpollSocketChannel(io.netty.channel.socket.InternetProtocolFamily protocol)
```
    Deprecated.
    use EpollServerSocketChannel(SocketProtocolFamily).
  - EpollSocketChannel
```
public EpollSocketChannel(io.netty.channel.socket.SocketProtocolFamily protocol)
```
  - EpollSocketChannel
```
public EpollSocketChannel(int fd)
```
- Method Detail
  - tcpInfo
```
public EpollTcpInfo tcpInfo()
```
    Returns the TCP_INFO for the current socket. See man 7 tcp.
  - tcpInfo
```
public EpollTcpInfo tcpInfo(EpollTcpInfo info)
```
    Updates and returns the TCP_INFO for the current socket. See man 7 tcp.
  - remoteAddress
```
public InetSocketAddress remoteAddress()
```
    Specified by:
    
    remoteAddress in interface io.netty.channel.Channel
    
    Specified by:
    
    remoteAddress in interface io.netty.channel.socket.SocketChannel
    
    Overrides:
    
    remoteAddress in class io.netty.channel.AbstractChannel
  - localAddress
```
public InetSocketAddress localAddress()
```
    Specified by:
    
    localAddress in interface io.netty.channel.Channel
    
    Specified by:
    
    localAddress in interface io.netty.channel.socket.SocketChannel
    
    Overrides:
    
    localAddress in class io.netty.channel.AbstractChannel
  - config
```
public EpollSocketChannelConfig config()
```
    Specified by:
    
    config in interface io.netty.channel.Channel
    
    Specified by:
    
    config in interface io.netty.channel.socket.SocketChannel
  - parent
```
public io.netty.channel.socket.ServerSocketChannel parent()
```
    Specified by:
    
    parent in interface io.netty.channel.Channel
    
    Specified by:
    
    parent in interface io.netty.channel.socket.SocketChannel
    
    Overrides:
    
    parent in class io.netty.channel.AbstractChannel
  - newUnsafe
```
protected io.netty.channel.epoll.AbstractEpollChannel.AbstractEpollUnsafe newUnsafe()
```
    Overrides:
    
    newUnsafe in class AbstractEpollStreamChannel
  - setFlag
```
protected void setFlag(int flag)
                throws IOException
```
    Throws:
    
    IOException
  - registration
```
protected final io.netty.channel.IoRegistration registration()
```
  - fd
```
public final io.netty.channel.unix.FileDescriptor fd()
```
    Specified by:
    
    fd in interface io.netty.channel.unix.UnixChannel
  - isActive
```
public boolean isActive()
```
    Specified by:
    
    isActive in interface io.netty.channel.Channel
  - doDisconnect
```
protected void doDisconnect()
                     throws Exception
```
    Specified by:
    
    doDisconnect in class io.netty.channel.AbstractChannel
    
    Throws:
    
    Exception
  - isOpen
```
public boolean isOpen()
```
    Specified by:
    
    isOpen in interface io.netty.channel.Channel
  - doDeregister
```
protected void doDeregister()
                     throws Exception
```
    Overrides:
    
    doDeregister in class io.netty.channel.AbstractChannel
    
    Throws:
    
    Exception
  - isCompatible
```
protected boolean isCompatible(io.netty.channel.EventLoop loop)
```
    Specified by:
    
    isCompatible in class io.netty.channel.AbstractChannel
  - doBeginRead
```
protected void doBeginRead()
                    throws Exception
```
    Specified by:
    
    doBeginRead in class io.netty.channel.AbstractChannel
    
    Throws:
    
    Exception
  - doRegister
```
protected void doRegister(io.netty.channel.ChannelPromise promise)
```
    Overrides:
    
    doRegister in class io.netty.channel.AbstractChannel
  - newDirectBuffer
```
protected final io.netty.buffer.ByteBuf newDirectBuffer(io.netty.buffer.ByteBuf buf)
```
    Returns an off-heap copy of the specified ByteBuf, and releases the original one.
  - newDirectBuffer
```
protected final io.netty.buffer.ByteBuf newDirectBuffer(Object holder,
                                                        io.netty.buffer.ByteBuf buf)
```
    Returns an off-heap copy of the specified ByteBuf, and releases the specified holder. The caller must ensure that the holder releases the original ByteBuf when the holder is released by this method.
  - checkResolvable
```
protected static void checkResolvable(InetSocketAddress addr)
```
  - doReadBytes
```
protected final int doReadBytes(io.netty.buffer.ByteBuf byteBuf)
                         throws Exception
```
    Read bytes into the given ByteBuf and return the amount.
    
    Throws:
    
    Exception
  - doWriteBytes
```
protected final int doWriteBytes(io.netty.channel.ChannelOutboundBuffer in,
                                 io.netty.buffer.ByteBuf buf)
                          throws Exception
```
    Throws:
    
    Exception
  - doBind
```
protected void doBind(SocketAddress local)
               throws Exception
```
    Specified by:
    
    doBind in class io.netty.channel.AbstractChannel
    
    Throws:
    
    Exception
  - doConnect
```
protected boolean doConnect(SocketAddress remoteAddress,
                            SocketAddress localAddress)
                     throws Exception
```
    Connect to the remote peer
    
    Throws:
    
    Exception
  - localAddress0
```
protected SocketAddress localAddress0()
```
    Specified by:
    
    localAddress0 in class io.netty.channel.AbstractChannel
  - remoteAddress0
```
protected SocketAddress remoteAddress0()
```
    Specified by:
    
    remoteAddress0 in class io.netty.channel.AbstractChannel

Class EpollSocketChannel

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.channel.epoll.AbstractEpollStreamChannel

Nested classes/interfaces inherited from class io.netty.channel.AbstractChannel

Nested classes/interfaces inherited from interface io.netty.channel.Channel

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class io.netty.channel.AbstractChannel

Methods inherited from class io.netty.util.DefaultAttributeMap

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.util.AttributeMap

Methods inherited from interface io.netty.channel.Channel

Methods inherited from interface java.lang.Comparable

Methods inherited from interface io.netty.channel.socket.DuplexChannel

Field Detail

socket

active

Constructor Detail

EpollSocketChannel

EpollSocketChannel

EpollSocketChannel

EpollSocketChannel

Method Detail

tcpInfo

tcpInfo

remoteAddress

localAddress

config

parent

newUnsafe

setFlag

registration

fd

isActive

doDisconnect

isOpen

doDeregister

isCompatible

doBeginRead

doRegister

newDirectBuffer

newDirectBuffer

checkResolvable

doReadBytes

doWriteBytes

doBind

doConnect

localAddress0

remoteAddress0