Class IoUringSocketChannelConfig

java.lang.Object

io.netty.channel.DefaultChannelConfig

io.netty.channel.uring.IoUringChannelConfig

io.netty.channel.uring.IoUringStreamChannelConfig

io.netty.channel.uring.IoUringSocketChannelConfig

All Implemented Interfaces:

ChannelConfig, DuplexChannelConfig, SocketChannelConfig

final class IoUringSocketChannelConfig
extends IoUringStreamChannelConfig
implements SocketChannelConfig

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	allowHalfClosure
(package private) static final int	DISABLE_WRITE_ZERO_COPY
private boolean	tcpFastopen
private int	writeZeroCopyThreshold

Fields inherited from class DefaultChannelConfig

channel

Constructor Summary

Constructors

Constructor	Description
IoUringSocketChannelConfig(AbstractIoUringChannel channel)

Method Summary

Modifier and Type	Method	Description
<T> T	getOption(ChannelOption<T> option)	Return the value of the given ChannelOption
Map<ChannelOption<?>, Object>	getOptions()	Return all set ChannelOption's.
int	getReceiveBufferSize()	Gets the StandardSocketOptions.SO_RCVBUF option.
int	getSendBufferSize()	Gets the StandardSocketOptions.SO_SNDBUF option.
int	getSoBusyPoll()	Get the SO_BUSY_POLL option on the socket.
int	getSoLinger()	Gets the StandardSocketOptions.SO_LINGER option.
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()	Gets the StandardSocketOptions.IP_TOS option.
private int	getWriteZeroCopyThreshold()
boolean	isAllowHalfClosure()	Returns true if and only if the channel should not close itself when its remote peer shuts down output to make the connection half-closed.
boolean	isIpTransparent()	Returns true if IP_TRANSPARENT is enabled, false otherwise.
boolean	isKeepAlive()	Gets the StandardSocketOptions.SO_KEEPALIVE option.
boolean	isReuseAddress()	Gets the StandardSocketOptions.SO_REUSEADDR option.
boolean	isTcpCork()	Get the TCP_CORK option on the socket.
boolean	isTcpFastOpenConnect()	Returns true if TCP_FASTOPEN_CONNECT is enabled, false otherwise.
boolean	isTcpNoDelay()	Gets the StandardSocketOptions.TCP_NODELAY option.
boolean	isTcpQuickAck()	Returns true if TCP_QUICKACK is enabled, false otherwise.
IoUringSocketChannelConfig	setAllocator(ByteBufAllocator allocator)	Set the ByteBufAllocator which is used for the channel to allocate buffers.
IoUringSocketChannelConfig	setAllowHalfClosure(boolean allowHalfClosure)	Sets whether the channel should not close itself when its remote peer shuts down output to make the connection half-closed.
IoUringSocketChannelConfig	setAutoClose(boolean autoClose)	Sets whether the Channel should be closed automatically and immediately on write failure.
IoUringSocketChannelConfig	setAutoRead(boolean autoRead)	Sets if ChannelHandlerContext.read() will be invoked automatically so that a user application doesn't need to call it at all.
IoUringSocketChannelConfig	setConnectTimeoutMillis(int connectTimeoutMillis)	Sets the connect timeout of the channel in milliseconds.
IoUringSocketChannelConfig	setIpTransparent(boolean transparent)	If true is used IP_TRANSPARENT is enabled, false for disable it.
IoUringSocketChannelConfig	setKeepAlive(boolean keepAlive)	Sets the StandardSocketOptions.SO_KEEPALIVE option.
IoUringSocketChannelConfig	setMaxMessagesPerRead(int maxMessagesPerRead)	Deprecated.
IoUringSocketChannelConfig	setMessageSizeEstimator(MessageSizeEstimator estimator)	Set the MessageSizeEstimator which is used for the channel to detect the size of a message.
<T> boolean	setOption(ChannelOption<T> option, T value)	Sets a configuration property with the specified name and value.
IoUringSocketChannelConfig	setPerformancePreferences(int connectionTime, int latency, int bandwidth)	Sets the performance preferences as specified in Socket.setPerformancePreferences(int, int, int).
IoUringSocketChannelConfig	setReceiveBufferSize(int receiveBufferSize)	Sets the StandardSocketOptions.SO_RCVBUF option.
IoUringSocketChannelConfig	setRecvByteBufAllocator(RecvByteBufAllocator allocator)	Set the RecvByteBufAllocator which is used for the channel to allocate receive buffers.
IoUringSocketChannelConfig	setReuseAddress(boolean reuseAddress)	Sets the StandardSocketOptions.SO_REUSEADDR option.
IoUringSocketChannelConfig	setSendBufferSize(int sendBufferSize)	Sets the StandardSocketOptions.SO_SNDBUF option.
IoUringSocketChannelConfig	setSoBusyPoll(int loopMicros)	Set the SO_BUSY_POLL option on the socket.
IoUringSocketChannelConfig	setSoLinger(int soLinger)	Sets the StandardSocketOptions.SO_LINGER option.
IoUringSocketChannelConfig	setTcpCork(boolean tcpCork)	Set the TCP_CORK option on the socket.
IoUringSocketChannelConfig	setTcpFastOpenConnect(boolean fastOpenConnect)	Enables client TCP fast open.
IoUringSocketChannelConfig	setTcpKeepCnt(int probes)	Set the TCP_KEEPCNT option on the socket.
IoUringSocketChannelConfig	setTcpKeepCntl(int probes)	Deprecated. use setTcpKeepCnt(int)
IoUringSocketChannelConfig	setTcpKeepIdle(int seconds)	Set the TCP_KEEPIDLE option on the socket.
IoUringSocketChannelConfig	setTcpKeepIntvl(int seconds)	Set the TCP_KEEPINTVL option on the socket.
IoUringSocketChannelConfig	setTcpNoDelay(boolean tcpNoDelay)	Sets the StandardSocketOptions.TCP_NODELAY option.
IoUringSocketChannelConfig	setTcpNotSentLowAt(long tcpNotSentLowAt)	Set the TCP_NOTSENT_LOWAT option on the socket.
IoUringSocketChannelConfig	setTcpQuickAck(boolean quickAck)	Set the TCP_QUICKACK option on the socket.
IoUringSocketChannelConfig	setTcpUserTimeout(int milliseconds)	Set the TCP_USER_TIMEOUT option on the socket.
IoUringSocketChannelConfig	setTrafficClass(int trafficClass)	Sets the StandardSocketOptions.IP_TOS option.
IoUringSocketChannelConfig	setWriteBufferHighWaterMark(int writeBufferHighWaterMark)	Deprecated.
IoUringSocketChannelConfig	setWriteBufferLowWaterMark(int writeBufferLowWaterMark)	Deprecated.
IoUringSocketChannelConfig	setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark)	Set the WriteBufferWaterMark which is used for setting the high and low water mark of the write buffer.
IoUringSocketChannelConfig	setWriteSpinCount(int writeSpinCount)	Sets the maximum loop count for a write operation until WritableByteChannel.write(ByteBuffer) returns a non-zero value.
(package private) IoUringSocketChannelConfig	setWriteZeroCopyThreshold(int setWriteZeroCopyThreshold)
(package private) boolean	shouldWriteZeroCopy(int amount)

Methods inherited from class IoUringStreamChannelConfig

getBufferGroupId, setBufferGroupId

Methods inherited from class IoUringChannelConfig

autoReadCleared, setMaxMessagesPerWrite

Methods inherited from class DefaultChannelConfig

getAllocator, getConnectTimeoutMillis, getMaxMessagesPerRead, getMaxMessagesPerWrite, getMessageSizeEstimator, getOptions, getRecvByteBufAllocator, getWriteBufferHighWaterMark, getWriteBufferLowWaterMark, getWriteBufferWaterMark, getWriteSpinCount, isAutoClose, isAutoRead, setOptions, validate

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ChannelConfig

getAllocator, getConnectTimeoutMillis, getMaxMessagesPerRead, getMessageSizeEstimator, getRecvByteBufAllocator, getWriteBufferHighWaterMark, getWriteBufferLowWaterMark, getWriteBufferWaterMark, getWriteSpinCount, isAutoClose, isAutoRead, setOptions

Field Details

allowHalfClosure

private volatile boolean allowHalfClosure

tcpFastopen

private volatile boolean tcpFastopen

DISABLE_WRITE_ZERO_COPY

static final int DISABLE_WRITE_ZERO_COPY

See Also:

• Constant Field Values

writeZeroCopyThreshold

private volatile int writeZeroCopyThreshold

Constructor Details

IoUringSocketChannelConfig

IoUringSocketChannelConfig(AbstractIoUringChannel channel)

Method Details

getOptions

public Map<ChannelOption<?>, Object> getOptions()

Description copied from interface: ChannelConfig

Return all set ChannelOption's.

Specified by:

getOptions in interface ChannelConfig

Overrides:

getOptions in class IoUringStreamChannelConfig

getOption

public <T> T getOption(ChannelOption<T> option)

Description copied from interface: ChannelConfig

Return the value of the given ChannelOption

Specified by:

getOption in interface ChannelConfig

Overrides:

getOption in class IoUringStreamChannelConfig

setOption

public <T> boolean setOption(ChannelOption<T> option,
 T value)

Description copied from interface: ChannelConfig

Sets a configuration property with the specified name and value. To override this method properly, you must call the super class:

public boolean setOption(ChannelOption<T> option, T value) {
    if (super.setOption(option, value)) {
        return true;
    }

    if (option.equals(additionalOption)) {
        ....
        return true;
    }

    return false;
}

Specified by:

setOption in interface ChannelConfig

Overrides:

setOption in class IoUringStreamChannelConfig

Returns:

true if and only if the property has been set

getSendBufferSize

public int getSendBufferSize()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.SO_SNDBUF option.

Specified by:

getSendBufferSize in interface SocketChannelConfig

getSoLinger

public int getSoLinger()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.SO_LINGER option.

Specified by:

getSoLinger in interface SocketChannelConfig

getTrafficClass

public int getTrafficClass()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.IP_TOS option.

Specified by:

getTrafficClass in interface SocketChannelConfig

isKeepAlive

public boolean isKeepAlive()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.SO_KEEPALIVE option.

Specified by:

isKeepAlive in interface SocketChannelConfig

isReuseAddress

public boolean isReuseAddress()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.SO_REUSEADDR option.

Specified by:

isReuseAddress in interface SocketChannelConfig

isTcpNoDelay

public boolean isTcpNoDelay()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.TCP_NODELAY option. Please note that the default value of this option is true unlike the operating system default (false). However, for some buggy platforms, such as Android, that shows erratic behavior with Nagle's algorithm disabled, the default value remains to be false.

Specified by:

isTcpNoDelay in interface 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 IoUringSocketChannelConfig setKeepAlive(boolean keepAlive)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.SO_KEEPALIVE option.

Specified by:

setKeepAlive in interface SocketChannelConfig

setPerformancePreferences

public IoUringSocketChannelConfig setPerformancePreferences(int connectionTime,
 int latency,
 int bandwidth)

Description copied from interface: SocketChannelConfig

Sets the performance preferences as specified in Socket.setPerformancePreferences(int, int, int).

Specified by:

setPerformancePreferences in interface SocketChannelConfig

setReceiveBufferSize

public IoUringSocketChannelConfig setReceiveBufferSize(int receiveBufferSize)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.SO_RCVBUF option.

Specified by:

setReceiveBufferSize in interface SocketChannelConfig

setReuseAddress

public IoUringSocketChannelConfig setReuseAddress(boolean reuseAddress)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.SO_REUSEADDR option.

Specified by:

setReuseAddress in interface SocketChannelConfig

setSendBufferSize

public IoUringSocketChannelConfig setSendBufferSize(int sendBufferSize)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.SO_SNDBUF option.

Specified by:

setSendBufferSize in interface SocketChannelConfig

getReceiveBufferSize

public int getReceiveBufferSize()

Description copied from interface: SocketChannelConfig

Gets the StandardSocketOptions.SO_RCVBUF option.

Specified by:

getReceiveBufferSize in interface SocketChannelConfig

setSoLinger

public IoUringSocketChannelConfig setSoLinger(int soLinger)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.SO_LINGER option.

Specified by:

setSoLinger in interface SocketChannelConfig

setTcpNoDelay

public IoUringSocketChannelConfig setTcpNoDelay(boolean tcpNoDelay)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.TCP_NODELAY option. Please note that the default value of this option is true unlike the operating system default (false). However, for some buggy platforms, such as Android, that shows erratic behavior with Nagle's algorithm disabled, the default value remains to be false.

Specified by:

setTcpNoDelay in interface SocketChannelConfig

setTcpCork

public IoUringSocketChannelConfig setTcpCork(boolean tcpCork)

Set the TCP_CORK option on the socket. See man 7 tcp for more details.

setSoBusyPoll

public IoUringSocketChannelConfig setSoBusyPoll(int loopMicros)

Set the SO_BUSY_POLL option on the socket. See man 7 tcp for more details.

setTcpNotSentLowAt

public IoUringSocketChannelConfig 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 IoUringSocketChannelConfig setTrafficClass(int trafficClass)

Description copied from interface: SocketChannelConfig

Sets the StandardSocketOptions.IP_TOS option.

Specified by:

setTrafficClass in interface SocketChannelConfig

setTcpKeepIdle

public IoUringSocketChannelConfig setTcpKeepIdle(int seconds)

Set the TCP_KEEPIDLE option on the socket. See man 7 tcp for more details.

setTcpKeepIntvl

public IoUringSocketChannelConfig setTcpKeepIntvl(int seconds)

Set the TCP_KEEPINTVL option on the socket. See man 7 tcp for more details.

setTcpKeepCntl

@Deprecated
public IoUringSocketChannelConfig setTcpKeepCntl(int probes)

Deprecated.

use setTcpKeepCnt(int)

setTcpKeepCnt

public IoUringSocketChannelConfig setTcpKeepCnt(int probes)

Set the TCP_KEEPCNT option on the socket. See man 7 tcp for more details.

setTcpUserTimeout

public IoUringSocketChannelConfig setTcpUserTimeout(int milliseconds)

Set the TCP_USER_TIMEOUT option on the socket. See man 7 tcp for more details.

isIpTransparent

public boolean isIpTransparent()

Returns true if IP_TRANSPARENT is enabled, false otherwise.

setIpTransparent

public IoUringSocketChannelConfig setIpTransparent(boolean transparent)

If true is used IP_TRANSPARENT is enabled, false for disable it. Default is disabled.

setTcpQuickAck

public IoUringSocketChannelConfig 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 IoUringSocketChannelConfig setTcpFastOpenConnect(boolean fastOpenConnect)

Enables client TCP fast open. See this LWN article for more info.

isTcpFastOpenConnect

public boolean isTcpFastOpenConnect()

Returns true if TCP_FASTOPEN_CONNECT is enabled, false otherwise.

isAllowHalfClosure

public boolean isAllowHalfClosure()

Description copied from interface: DuplexChannelConfig

Returns true if and only if the channel should not close itself when its remote peer shuts down output to make the connection half-closed. If false, the connection is closed automatically when the remote peer shuts down output.

Specified by:

isAllowHalfClosure in interface DuplexChannelConfig

setAllowHalfClosure

public IoUringSocketChannelConfig setAllowHalfClosure(boolean allowHalfClosure)

Description copied from interface: DuplexChannelConfig

Sets whether the channel should not close itself when its remote peer shuts down output to make the connection half-closed. If true the connection is not closed when the remote peer shuts down output. Instead, ChannelInboundHandler.userEventTriggered(ChannelHandlerContext, Object) is invoked with a ChannelInputShutdownEvent object. If false, the connection is closed automatically.

Specified by:

setAllowHalfClosure in interface DuplexChannelConfig

Specified by:

setAllowHalfClosure in interface SocketChannelConfig

setConnectTimeoutMillis

public IoUringSocketChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis)

Description copied from interface: ChannelConfig

Sets the connect timeout of the channel in milliseconds. If the Channel does not support connect operation, this property is not used at all, and therefore will be ignored.

Specified by:

setConnectTimeoutMillis in interface ChannelConfig

Specified by:

setConnectTimeoutMillis in interface SocketChannelConfig

Overrides:

setConnectTimeoutMillis in class IoUringChannelConfig

Parameters:

connectTimeoutMillis - the connect timeout in milliseconds. 0 to disable.

setMaxMessagesPerRead

@Deprecated
public IoUringSocketChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead)

Deprecated.

Description copied from class: DefaultChannelConfig

Specified by:

setMaxMessagesPerRead in interface ChannelConfig

Specified by:

setMaxMessagesPerRead in interface DuplexChannelConfig

Specified by:

setMaxMessagesPerRead in interface SocketChannelConfig

Overrides:

setMaxMessagesPerRead in class IoUringChannelConfig

setWriteSpinCount

public IoUringSocketChannelConfig setWriteSpinCount(int writeSpinCount)

Description copied from interface: ChannelConfig

Sets the maximum loop count for a write operation until WritableByteChannel.write(ByteBuffer) returns a non-zero value. It is similar to what a spin lock is used for in concurrency programming. It improves memory utilization and write throughput depending on the platform that JVM runs on. The default value is 16.

Specified by:

setWriteSpinCount in interface ChannelConfig

Specified by:

setWriteSpinCount in interface DuplexChannelConfig

Specified by:

setWriteSpinCount in interface SocketChannelConfig

Overrides:

setWriteSpinCount in class IoUringChannelConfig

setAllocator

public IoUringSocketChannelConfig setAllocator(ByteBufAllocator allocator)

Description copied from interface: ChannelConfig

Set the ByteBufAllocator which is used for the channel to allocate buffers.

Specified by:

setAllocator in interface ChannelConfig

Specified by:

setAllocator in interface DuplexChannelConfig

Specified by:

setAllocator in interface SocketChannelConfig

Overrides:

setAllocator in class IoUringChannelConfig

setRecvByteBufAllocator

public IoUringSocketChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator)

Description copied from interface: ChannelConfig

Set the RecvByteBufAllocator which is used for the channel to allocate receive buffers.

Specified by:

setRecvByteBufAllocator in interface ChannelConfig

Specified by:

setRecvByteBufAllocator in interface DuplexChannelConfig

Specified by:

setRecvByteBufAllocator in interface SocketChannelConfig

Overrides:

setRecvByteBufAllocator in class IoUringChannelConfig

setAutoRead

public IoUringSocketChannelConfig setAutoRead(boolean autoRead)

Description copied from interface: ChannelConfig

Sets if ChannelHandlerContext.read() will be invoked automatically so that a user application doesn't need to call it at all. The default value is true.

Specified by:

setAutoRead in interface ChannelConfig

Specified by:

setAutoRead in interface DuplexChannelConfig

Specified by:

setAutoRead in interface SocketChannelConfig

Overrides:

setAutoRead in class IoUringChannelConfig

setAutoClose

public IoUringSocketChannelConfig setAutoClose(boolean autoClose)

Description copied from interface: ChannelConfig

Sets whether the Channel should be closed automatically and immediately on write failure. The default is true.

Specified by:

setAutoClose in interface ChannelConfig

Specified by:

setAutoClose in interface DuplexChannelConfig

Specified by:

setAutoClose in interface SocketChannelConfig

Overrides:

setAutoClose in class IoUringChannelConfig

setWriteBufferHighWaterMark

@Deprecated
public IoUringSocketChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark)

Deprecated.

Description copied from interface: ChannelConfig

Sets the high water mark of the write buffer. If the number of bytes queued in the write buffer exceeds this value, Channel.isWritable() will start to return false.

Specified by:

setWriteBufferHighWaterMark in interface ChannelConfig

Overrides:

setWriteBufferHighWaterMark in class IoUringChannelConfig

setWriteBufferLowWaterMark

@Deprecated
public IoUringSocketChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark)

Deprecated.

Description copied from interface: ChannelConfig

Sets the low water mark of the write buffer. Once the number of bytes queued in the write buffer exceeded the high water mark and then dropped down below this value, Channel.isWritable() will start to return true again.

Specified by:

setWriteBufferLowWaterMark in interface ChannelConfig

Overrides:

setWriteBufferLowWaterMark in class IoUringChannelConfig

setWriteBufferWaterMark

public IoUringSocketChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark)

Description copied from interface: ChannelConfig

Set the WriteBufferWaterMark which is used for setting the high and low water mark of the write buffer.

Specified by:

setWriteBufferWaterMark in interface ChannelConfig

Specified by:

setWriteBufferWaterMark in interface DuplexChannelConfig

Specified by:

setWriteBufferWaterMark in interface SocketChannelConfig

Overrides:

setWriteBufferWaterMark in class IoUringChannelConfig

setMessageSizeEstimator

public IoUringSocketChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator)

Description copied from interface: ChannelConfig

Set the MessageSizeEstimator which is used for the channel to detect the size of a message.

Specified by:

setMessageSizeEstimator in interface ChannelConfig

Specified by:

setMessageSizeEstimator in interface DuplexChannelConfig

Specified by:

setMessageSizeEstimator in interface SocketChannelConfig

Overrides:

setMessageSizeEstimator in class IoUringChannelConfig

getWriteZeroCopyThreshold

private int getWriteZeroCopyThreshold()

setWriteZeroCopyThreshold

IoUringSocketChannelConfig setWriteZeroCopyThreshold(int setWriteZeroCopyThreshold)

shouldWriteZeroCopy

boolean shouldWriteZeroCopy(int amount)