io.netty.channel.epoll

Class EpollServerSocketChannel

java.lang.Object

io.netty.util.DefaultAttributeMap

io.netty.channel.AbstractChannel

io.netty.channel.epoll.AbstractEpollServerChannel

io.netty.channel.epoll.EpollServerSocketChannel

All Implemented Interfaces:

Channel, ServerChannel, ServerSocketChannel, UnixChannel, AttributeMap, java.lang.Comparable<Channel>

public final class EpollServerSocketChannel
extends AbstractEpollServerChannel
implements ServerSocketChannel

ServerSocketChannel implementation that uses linux EPOLL Edge-Triggered Mode for maximal performance.

Nested Class Summary

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

Constructor Summary

Constructors

Constructor and Description
EpollServerSocketChannel()
EpollServerSocketChannel(FileDescriptor fd) Deprecated. Use EpollServerSocketChannel(Socket, boolean). Creates a new EpollServerSocketChannel from an existing FileDescriptor.
EpollServerSocketChannel(Socket fd) Deprecated. Use EpollServerSocketChannel(Socket, boolean). Creates a new EpollServerSocketChannel from an existing Socket.
EpollServerSocketChannel(Socket fd, boolean active)

Method Summary

Modifier and Type	Method and Description
protected static void	checkResolvable(java.net.InetSocketAddress addr)
EpollServerSocketChannelConfig	config() Returns the configuration of this channel.
protected void	doBeginRead() Schedule a read operation.
protected void	doBind(java.net.SocketAddress localAddress) Bind the Channel to the SocketAddress
protected void	doClose() Close the Channel
protected void	doDeregister() Deregister the Channel from its EventLoop.
protected void	doDisconnect() Disconnect this Channel from its remote peer
protected int	doReadBytes(ByteBuf byteBuf) Read bytes into the given ByteBuf and return the amount.
protected void	doRegister() Is called after the Channel is registered with its EventLoop as part of the register process.
protected int	doWriteBytes(ByteBuf buf, int writeSpinCount)
Socket	fd() Returns the FileDescriptor that is used by this Channel.
boolean	isActive() Return true if the Channel is active and so connected.
protected boolean	isCompatible(EventLoop loop) Return true if the given EventLoop is compatible with this instance.
boolean	isOpen() Returns true if the Channel is open and may get active later
java.net.InetSocketAddress	localAddress() Returns the local address where this channel is bound to.
protected java.net.SocketAddress	localAddress0() Returns the SocketAddress which is bound locally.
ChannelMetadata	metadata() Return the ChannelMetadata of the Channel which describe the nature of the Channel.
protected Channel	newChildChannel(int fd, byte[] address, int offset, int len)
protected ByteBuf	newDirectBuffer(ByteBuf buf) Returns an off-heap copy of the specified ByteBuf, and releases the original one.
protected ByteBuf	newDirectBuffer(java.lang.Object holder, ByteBuf buf) Returns an off-heap copy of the specified ByteBuf, and releases the specified holder.
java.net.InetSocketAddress	remoteAddress() Returns the remote address where this channel is connected to.

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

doConnect, doWrite, filterOutboundMessage, newUnsafe, remoteAddress0

Methods inherited from class io.netty.channel.AbstractChannel

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

Methods inherited from class io.netty.util.DefaultAttributeMap

attr

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.netty.channel.Channel

alloc, bind, bind, close, close, closeFuture, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, eventLoop, flush, isActive, isOpen, isRegistered, isWritable, metadata, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, parent, pipeline, read, unsafe, voidPromise, write, write, writeAndFlush, writeAndFlush

Methods inherited from interface io.netty.util.AttributeMap

attr

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

flags

protected int flags

active

protected volatile boolean active

Constructor Detail

EpollServerSocketChannel

public EpollServerSocketChannel()

EpollServerSocketChannel

@Deprecated
public EpollServerSocketChannel(FileDescriptor fd)

Deprecated. Use EpollServerSocketChannel(Socket, boolean). Creates a new EpollServerSocketChannel from an existing FileDescriptor.

EpollServerSocketChannel

@Deprecated
public EpollServerSocketChannel(Socket fd)

Deprecated. Use EpollServerSocketChannel(Socket, boolean). Creates a new EpollServerSocketChannel from an existing Socket.

EpollServerSocketChannel

public EpollServerSocketChannel(Socket fd,
                                boolean active)

Method Detail

isCompatible

protected boolean isCompatible(EventLoop loop)

Description copied from class: AbstractChannel

Return true if the given EventLoop is compatible with this instance.

Overrides:

isCompatible in class AbstractEpollServerChannel

doBind

protected void doBind(java.net.SocketAddress localAddress)
               throws java.lang.Exception

Description copied from class: AbstractChannel

Bind the Channel to the SocketAddress

Throws:

java.lang.Exception

remoteAddress

public java.net.InetSocketAddress remoteAddress()

Description copied from interface: Channel

Returns the remote address where this channel is connected to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.

Specified by:

remoteAddress in interface Channel

Specified by:

remoteAddress in interface ServerSocketChannel

Overrides:

remoteAddress in class AbstractChannel

Returns:

the remote address of this channel. null if this channel is not connected. If this channel is not connected but it can receive messages from arbitrary remote addresses (e.g. DatagramChannel, use DefaultAddressedEnvelope.recipient() to determine the origination of the received message as this method will return null.

localAddress

public java.net.InetSocketAddress localAddress()

Description copied from interface: Channel

Returns the local address where this channel is bound to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.

Specified by:

localAddress in interface Channel

Specified by:

localAddress in interface ServerSocketChannel

Overrides:

localAddress in class AbstractChannel

Returns:

the local address of this channel. null if this channel is not bound.

config

public EpollServerSocketChannelConfig config()

Description copied from interface: Channel

Returns the configuration of this channel.

Specified by:

config in interface Channel

Specified by:

config in interface ServerSocketChannel

newChildChannel

protected Channel newChildChannel(int fd,
                                  byte[] address,
                                  int offset,
                                  int len)
                           throws java.lang.Exception

Throws:

java.lang.Exception

fd

public final Socket fd()

Description copied from interface: UnixChannel

Returns the FileDescriptor that is used by this Channel.

Specified by:

fd in interface UnixChannel

isActive

public boolean isActive()

Description copied from interface: Channel

Return true if the Channel is active and so connected.

Specified by:

isActive in interface Channel

metadata

public ChannelMetadata metadata()

Description copied from interface: Channel

Return the ChannelMetadata of the Channel which describe the nature of the Channel.

Specified by:

metadata in interface Channel

doClose

protected void doClose()
                throws java.lang.Exception

Description copied from class: AbstractChannel

Close the Channel

Specified by:

doClose in class AbstractChannel

Throws:

java.lang.Exception

doDisconnect

protected void doDisconnect()
                     throws java.lang.Exception

Description copied from class: AbstractChannel

Disconnect this Channel from its remote peer

Specified by:

doDisconnect in class AbstractChannel

Throws:

java.lang.Exception

isOpen

public boolean isOpen()

Description copied from interface: Channel

Returns true if the Channel is open and may get active later

Specified by:

isOpen in interface Channel

doDeregister

protected void doDeregister()
                     throws java.lang.Exception

Description copied from class: AbstractChannel

Deregister the Channel from its EventLoop. Sub-classes may override this method

Overrides:

doDeregister in class AbstractChannel

Throws:

java.lang.Exception

doBeginRead

protected void doBeginRead()
                    throws java.lang.Exception

Description copied from class: AbstractChannel

Schedule a read operation.

Specified by:

doBeginRead in class AbstractChannel

Throws:

java.lang.Exception

doRegister

protected void doRegister()
                   throws java.lang.Exception

Description copied from class: AbstractChannel

Is called after the Channel is registered with its EventLoop as part of the register process. Sub-classes may override this method

Overrides:

doRegister in class AbstractChannel

Throws:

java.lang.Exception

newDirectBuffer

protected final ByteBuf newDirectBuffer(ByteBuf buf)

Returns an off-heap copy of the specified ByteBuf, and releases the original one.

newDirectBuffer

protected final ByteBuf newDirectBuffer(java.lang.Object holder,
                                        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(java.net.InetSocketAddress addr)

doReadBytes

protected final int doReadBytes(ByteBuf byteBuf)
                         throws java.lang.Exception

Read bytes into the given ByteBuf and return the amount.

Throws:

java.lang.Exception

doWriteBytes

protected final int doWriteBytes(ByteBuf buf,
                                 int writeSpinCount)
                          throws java.lang.Exception

Throws:

java.lang.Exception

localAddress0

protected java.net.SocketAddress localAddress0()

Description copied from class: AbstractChannel

Returns the SocketAddress which is bound locally.

Specified by:

localAddress0 in class AbstractChannel