EpollSocketChannel (Netty API Reference (4.1.22.Final))

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

All Implemented Interfaces:

Channel ， ChannelOutboundInvoker ， DuplexChannel ， SocketChannel ， UnixChannel ， AttributeMap ，java.lang.Comparable的< Channel >
```
public final class EpollSocketChannel
extends AbstractEpollStreamChannel
implements SocketChannel
```
SocketChannel使用linux EPOLL Edge-Triggered Mode实现最高性能。

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
  AbstractChannel.AbstractUnsafe
- Nested classes/interfaces inherited from interface io.netty.channel.Channel
  Channel.Unsafe

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`active`
`protected int`	`flags`

构造方法摘要

构造方法
Constructor and Description
`EpollSocketChannel()`
`EpollSocketChannel(int fd)`

方法摘要

所有方法静态方法接口方法具体的方法
Modifier and Type	Method and Description
`protected static void`	`checkResolvable(java.net.InetSocketAddress addr)`
`EpollSocketChannelConfig`	`config()` 返回此频道的配置。
`protected void`	`doBeginRead()` 安排读取操作。
`protected void`	`doBind(java.net.SocketAddress local)` 将`Channel`绑定到`SocketAddress`
`protected boolean`	`doConnect(java.net.SocketAddress remoteAddress, java.net.SocketAddress localAddress)` 连接到远程对等
`protected void`	`doDeregister()` 注销`Channel`从`EventLoop` 。
`protected void`	`doDisconnect()` 将此`Channel`从其远程对等端断开
`protected int`	`doReadBytes(ByteBuf byteBuf)` 将字节读入给定的`ByteBuf`并返回该金额。
`protected void`	`doRegister()` 之后，被称为`Channel`与其注册`EventLoop`作为注册过程的一部分。
`protected int`	`doWriteBytes(ChannelOutboundBuffer in, ByteBuf buf)`
`FileDescriptor`	`fd()` 返回此`Channel`使用的`FileDescriptor` 。
`boolean`	`isActive()` 如果`Channel`处于活动状态并已连接，则返回`true` 。
`protected boolean`	`isCompatible(EventLoop loop)` 如果给定的`EventLoop`与此实例兼容，则返回`true` 。
`boolean`	`isOpen()` 如果`Channel`已打开并且稍后可能会激活，则返回`true`
`java.net.InetSocketAddress`	`localAddress()` 返回此通道绑定的本地地址。
`protected java.net.SocketAddress`	`localAddress0()` 返回本地绑定的 `SocketAddress` 。
`protected ByteBuf`	`newDirectBuffer(ByteBuf buf)` 返回指定`ByteBuf`的堆外副本，并释放原始副本。
`protected ByteBuf`	`newDirectBuffer(java.lang.Object holder, ByteBuf buf)` 返回指定的`ByteBuf`的堆外副本，并释放指定的持有者。
`protected io.netty.channel.epoll.AbstractEpollChannel.AbstractEpollUnsafe`	`newUnsafe()` 创建一个新的`AbstractChannel.AbstractUnsafe`实例，该实例将用于`Channel`的生命周期
`ServerSocketChannel`	`parent()` 返回此频道的父级。
`java.net.InetSocketAddress`	`remoteAddress()` 返回此通道连接到的远程地址。
`protected java.net.SocketAddress`	`remoteAddress0()` 返回`SocketAddress`其中`Channel`被连接到。
`EpollTcpInfo`	`tcpInfo()` 返回当前套接字的 `TCP_INFO` 。
`EpollTcpInfo`	`tcpInfo(EpollTcpInfo info)` 更新并返回当前套接字的 `TCP_INFO` 。

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
alloc, bind, bind, bytesBeforeUnwritable, bytesBeforeWritable, close, close, closeFuture, compareTo, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, equals, eventLoop, flush, hashCode, id, invalidateLocalAddress, invalidateRemoteAddress, isRegistered, isWritable, newChannelPipeline, newFailedFuture, newId, newProgressivePromise, newPromise, newSucceededFuture, pipeline, read, toString, unsafe, voidPromise, write, write, writeAndFlush, writeAndFlush

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.channel.socket.DuplexChannel
isInputShutdown, isOutputShutdown, isShutdown, shutdown, shutdown, shutdownInput, shutdownInput, shutdownOutput, shutdownOutput

Methods inherited from interface io.netty.channel.Channel
alloc, bytesBeforeUnwritable, bytesBeforeWritable, closeFuture, eventLoop, flush, id, isActive, isOpen, isRegistered, isWritable, metadata, pipeline, read, unsafe

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

Methods inherited from interface io.netty.channel.ChannelOutboundInvoker
bind, bind, close, close, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, voidPromise, write, write, writeAndFlush, writeAndFlush

Methods inherited from interface java.lang.Comparable
compareTo

- 字段详细信息
  - flags
```
protected int flags
```
  - active
```
protected volatile boolean active
```
- 构造方法详细信息
  - EpollSocketChannel
```
public EpollSocketChannel()
```
  - EpollSocketChannel
```
public EpollSocketChannel(int fd)
```
- 方法详细信息
  - tcpInfo
```
public EpollTcpInfo tcpInfo()
```
    返回当前套接字的TCP_INFO 。见man 7 tcp 。
  - tcpInfo
```
public EpollTcpInfo tcpInfo(EpollTcpInfo info)
```
    更新并返回当前套接字的TCP_INFO 。见man 7 tcp 。
  - remoteAddress
```
public java.net.InetSocketAddress remoteAddress()
```
    从接口复制的描述： Channel
    
    返回此通道连接到的远程地址。返回的SocketAddress被假定为更具体的类型，如InetSocketAddress以检索详细信息。
    
    Specified by:
    
    remoteAddress在界面 Channel
    
    Specified by:
    
    remoteAddress接口 SocketChannel
    
    重写：
    
    remoteAddress在类 AbstractChannel
    
    结果
    
    该频道的远程地址。 null如果此通道未连接。如果此通道未连接，但它可以接收来自任意远程地址的消息（例如DatagramChannel ，请使用DefaultAddressedEnvelope.recipient()确定收到消息的来源，因为此方法将返回null 。
  - localAddress
```
public java.net.InetSocketAddress localAddress()
```
    从接口复制的描述： Channel
    
    返回此通道绑定的本地地址。返回的SocketAddress应该被转换为更具体的类型，例如InetSocketAddress以检索详细信息。
    
    Specified by:
    
    localAddress在界面 Channel
    
    Specified by:
    
    localAddress在界面 SocketChannel
    
    重写：
    
    localAddress类 AbstractChannel
    
    结果
    
    这个频道的本地地址。 null如果此通道未绑定。
  - config
```
public EpollSocketChannelConfig config()
```
    从界面复制的描述： Channel
    
    返回此频道的配置。
    
    Specified by:
    
    config ，界面 Channel
    
    Specified by:
    
    config ，界面 SocketChannel
  - parent
```
public ServerSocketChannel parent()
```
    从界面复制的描述： Channel
    
    返回此频道的父级。
    
    Specified by:
    
    parent在界面 Channel
    
    Specified by:
    
    parent在界面 SocketChannel
    
    重写：
    
    parent在类 AbstractChannel
    
    结果
    
    父频道。 null如果此频道没有父频道。
  - newUnsafe
```
protected io.netty.channel.epoll.AbstractEpollChannel.AbstractEpollUnsafe newUnsafe()
```
    从类复制的描述： AbstractChannel
    
    创建一个新的AbstractChannel.AbstractUnsafe实例，该实例将用于Channel的生命周期
    
    重写：
    
    newUnsafe在课堂上 AbstractEpollStreamChannel
  - fd
```
public final FileDescriptor fd()
```
    从接口UnixChannel复制的描述
    
    返回此Channel使用的FileDescriptor 。
    
    Specified by:
    
    fd在界面 UnixChannel
  - isActive
```
public boolean isActive()
```
    从界面复制的描述： Channel
    
    如果Channel处于活动状态并已连接，则返回true 。
    
    Specified by:
    
    isActive在界面 Channel
  - doDisconnect
```
protected void doDisconnect()
                     throws java.lang.Exception
```
    从类复制的描述： AbstractChannel
    
    将此Channel从其远程对等端断开
    
    Specified by:
    
    doDisconnect在课堂上 AbstractChannel
    
    异常
    
    java.lang.Exception
  - isCompatible
```
protected boolean isCompatible(EventLoop loop)
```
    从类复制的描述： AbstractChannel
    
    如果给定的EventLoop与此实例兼容，则返回true 。
    
    Specified by:
    
    isCompatible在类 AbstractChannel
  - isOpen
```
public boolean isOpen()
```
    从接口Channel复制的描述
    
    如果Channel已打开并且稍后可能会激活，则返回true
    
    Specified by:
    
    isOpen在界面 Channel
  - doDeregister
```
protected void doDeregister()
                     throws java.lang.Exception
```
    从类复制的描述： AbstractChannel
    
    注销Channel从EventLoop 。子类可能会覆盖此方法
    
    重写：
    
    doDeregister在课堂上 AbstractChannel
    
    异常
    
    java.lang.Exception
  - doBeginRead
```
protected final void doBeginRead()
                          throws java.lang.Exception
```
    从类复制的描述： AbstractChannel
    
    安排读取操作。
    
    Specified by:
    
    doBeginRead在课堂上 AbstractChannel
    
    异常
    
    java.lang.Exception
  - doRegister
```
protected void doRegister()
                   throws java.lang.Exception
```
    从类复制的描述： AbstractChannel
    
    之后，被称为Channel与其注册EventLoop作为注册过程的一部分。子类可能会覆盖此方法
    
    重写：
    
    doRegister在课堂上 AbstractChannel
    
    异常
    
    java.lang.Exception
  - newDirectBuffer
```
protected final ByteBuf newDirectBuffer(ByteBuf buf)
```
    返回指定ByteBuf的堆外副本，并释放原始副本。
  - newDirectBuffer
```
protected final ByteBuf newDirectBuffer(java.lang.Object holder,
                                        ByteBuf buf)
```
    返回指定的ByteBuf的堆外副本，并释放指定的持有者。呼叫者必须确保持有人通过此方法释放持有人时释放原始ByteBuf 。
  - checkResolvable
```
protected static void checkResolvable(java.net.InetSocketAddress addr)
```
  - doReadBytes
```
protected final int doReadBytes(ByteBuf byteBuf)
                         throws java.lang.Exception
```
    将字节读入给定的ByteBuf并返回该金额。
    
    异常
    
    java.lang.Exception
  - doWriteBytes
```
protected final int doWriteBytes(ChannelOutboundBuffer in,
                                 ByteBuf buf)
                          throws java.lang.Exception
```
    异常
    
    java.lang.Exception
  - doBind
```
protected void doBind(java.net.SocketAddress local)
               throws java.lang.Exception
```
    从类复制的描述： AbstractChannel
    
    将Channel绑定到SocketAddress
    
    Specified by:
    
    doBind class AbstractChannel
    
    异常
    
    java.lang.Exception
  - doConnect
```
protected boolean doConnect(java.net.SocketAddress remoteAddress,
                            java.net.SocketAddress localAddress)
                     throws java.lang.Exception
```
    连接到远程对等
    
    异常
    
    java.lang.Exception
  - localAddress0
```
protected java.net.SocketAddress localAddress0()
```
    从类复制的描述： AbstractChannel
    
    返回本地绑定的 SocketAddress 。
    
    Specified by:
    
    localAddress0在课堂上 AbstractChannel
  - remoteAddress0
```
protected java.net.SocketAddress remoteAddress0()
```
    从类复制的描述： AbstractChannel
    
    返回SocketAddress其中Channel被连接到。
    
    Specified by:
    
    remoteAddress0在课堂上 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

构造方法摘要

方法摘要

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.channel.socket.DuplexChannel

Methods inherited from interface io.netty.channel.Channel

Methods inherited from interface io.netty.util.AttributeMap

Methods inherited from interface io.netty.channel.ChannelOutboundInvoker

Methods inherited from interface java.lang.Comparable

字段详细信息

flags

active

构造方法详细信息

EpollSocketChannel

EpollSocketChannel

方法详细信息

tcpInfo

tcpInfo

remoteAddress

localAddress

config

parent

newUnsafe

fd

isActive

doDisconnect

isCompatible

isOpen

doDeregister

doBeginRead

doRegister

newDirectBuffer

newDirectBuffer

checkResolvable

doReadBytes

doWriteBytes

doBind

doConnect

localAddress0

remoteAddress0