Package io.netty.channel.nio

Class NioEventLoop

java.lang.Object

java.util.concurrent.AbstractExecutorService

io.netty.util.concurrent.AbstractEventExecutor

io.netty.util.concurrent.AbstractScheduledEventExecutor

io.netty.util.concurrent.SingleThreadEventExecutor

io.netty.channel.SingleThreadEventLoop

io.netty.channel.SingleThreadIoEventLoop

io.netty.channel.nio.NioEventLoop

All Implemented Interfaces:

EventLoop, EventLoopGroup, IoEventLoop, IoEventLoopGroup, EventExecutor, EventExecutorGroup, OrderedEventExecutor, ThreadAwareExecutor, java.lang.Iterable<EventExecutor>, java.util.concurrent.Executor, java.util.concurrent.ExecutorService, java.util.concurrent.ScheduledExecutorService

@Deprecated
public final class NioEventLoop
extends SingleThreadIoEventLoop

Deprecated.

Use SingleThreadIoEventLoop with NioIoHandler

SingleThreadIoEventLoop implementation which register the Channel's to a Selector and so does the multi-plexing of these in the event loop.

Nested Class Summary

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

SingleThreadEventLoop.ChannelsReadOnlyIterator<T extends Channel>

Nested classes/interfaces inherited from class io.netty.util.concurrent.SingleThreadEventExecutor

SingleThreadEventExecutor.NonWakeupRunnable

Nested classes/interfaces inherited from class io.netty.util.concurrent.AbstractEventExecutor

AbstractEventExecutor.LazyRunnable

Field Summary

Fields inherited from class io.netty.channel.SingleThreadEventLoop

DEFAULT_MAX_PENDING_TASKS

Method Summary

Modifier and Type	Method	Description
int	getIoRatio()	Deprecated. Always return 0.
protected java.util.Queue<java.lang.Runnable>	newTaskQueue(int maxPendingTasks)	Deprecated. Create a new Queue which will holds the tasks to execute.
void	rebuildSelector()	Deprecated. Replaces the current Selector of this event loop with newly created Selectors to work around the infamous epoll 100% CPU bug.
void	register(java.nio.channels.SelectableChannel ch, int interestOps, NioTask<?> task)	Deprecated. Registers an arbitrary SelectableChannel, not necessarily created by Netty, to the Selector of this event loop.
int	registeredChannels()	Deprecated. Returns the number of Channels registered with this EventLoop or -1 if operation is not supported.
java.util.Iterator<Channel>	registeredChannelsIterator()	Deprecated.
java.nio.channels.spi.SelectorProvider	selectorProvider()	Deprecated. Returns the SelectorProvider used by this NioEventLoop to obtain the Selector.
void	setIoRatio(int ioRatio)	Deprecated.

Methods inherited from class io.netty.channel.SingleThreadIoEventLoop

canSuspend, cleanup, ioHandler, isCompatible, isIoType, next, register, run, runIo, wakeup

Methods inherited from class io.netty.channel.SingleThreadEventLoop

afterRunningAllTasks, executeAfterEventLoopIteration, hasTasks, parent, pendingTasks, register, register, register

Methods inherited from class io.netty.util.concurrent.SingleThreadEventExecutor

addShutdownHook, addTask, awaitTermination, canSuspend, confirmShutdown, deadlineNanos, delayNanos, execute, inEventLoop, interruptThread, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isShuttingDown, isSuspended, isTerminated, lazyExecute, newTaskQueue, peekTask, pollTask, pollTaskFrom, reject, reject, removeShutdownHook, removeTask, runAllTasks, runAllTasks, runAllTasksFrom, runScheduledAndExecutorTasks, shutdown, shutdownGracefully, takeTask, terminationFuture, threadProperties, trySuspend, updateLastExecutionTime, wakesUpForTask

Methods inherited from class io.netty.util.concurrent.AbstractScheduledEventExecutor

afterScheduledTaskSubmitted, beforeScheduledTaskSubmitted, cancelScheduledTasks, deadlineToDelayNanos, delayNanos, fetchFromScheduledTaskQueue, getCurrentTimeNanos, hasScheduledTasks, initialNanoTime, nanoTime, nextScheduledTaskDeadlineNanos, nextScheduledTaskNano, pollScheduledTask, pollScheduledTask, schedule, schedule, scheduleAtFixedRate, scheduleWithFixedDelay, ticker, validateScheduled

Methods inherited from class io.netty.util.concurrent.AbstractEventExecutor

iterator, newTaskFor, newTaskFor, runTask, safeExecute, shutdownGracefully, shutdownNow, submit, submit, submit

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.util.concurrent.EventExecutor

inEventLoop, inEventLoop, isExecutorThread, isSuspended, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, trySuspend

Methods inherited from interface io.netty.util.concurrent.EventExecutorGroup

isShuttingDown, iterator, schedule, schedule, scheduleAtFixedRate, scheduleWithFixedDelay, shutdown, shutdownGracefully, shutdownGracefully, shutdownNow, submit, submit, submit, terminationFuture, ticker

Methods inherited from interface io.netty.channel.EventLoop

parent

Methods inherited from interface io.netty.channel.EventLoopGroup

register

Methods inherited from interface java.util.concurrent.Executor

execute

Methods inherited from interface java.util.concurrent.ExecutorService

awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated

Methods inherited from interface io.netty.channel.IoEventLoopGroup

register, register

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

selectorProvider

public java.nio.channels.spi.SelectorProvider selectorProvider()

Deprecated.

Returns the SelectorProvider used by this NioEventLoop to obtain the Selector.

newTaskQueue

protected java.util.Queue<java.lang.Runnable> newTaskQueue(int maxPendingTasks)

Deprecated.

Description copied from class: SingleThreadEventExecutor

Create a new Queue which will holds the tasks to execute. This default implementation will return a LinkedBlockingQueue but if your sub-class of SingleThreadEventExecutor will not do any blocking calls on the this Queue it may make sense to @Override this and return some more performant implementation that does not support blocking operations at all.

Overrides:

newTaskQueue in class SingleThreadEventExecutor

register

public void register(java.nio.channels.SelectableChannel ch,
                     int interestOps,
                     NioTask<?> task)

Deprecated.

Registers an arbitrary SelectableChannel, not necessarily created by Netty, to the Selector of this event loop. Once the specified SelectableChannel is registered, the specified task will be executed by this event loop when the SelectableChannel is ready.

getIoRatio

public int getIoRatio()

Deprecated.

Always return 0.

setIoRatio

@Deprecated
public void setIoRatio(int ioRatio)

Deprecated.

This method is a no-op.

rebuildSelector

public void rebuildSelector()

Deprecated.

Replaces the current Selector of this event loop with newly created Selectors to work around the infamous epoll 100% CPU bug.

registeredChannels

public int registeredChannels()

Deprecated.

Description copied from class: SingleThreadEventLoop

Returns the number of Channels registered with this EventLoop or -1 if operation is not supported. The returned value is not guaranteed to be exact accurate and should be viewed as a best effort.

Overrides:

registeredChannels in class SingleThreadEventLoop

registeredChannelsIterator

public java.util.Iterator<Channel> registeredChannelsIterator()

Deprecated.

Overrides:

registeredChannelsIterator in class SingleThreadEventLoop

Returns:

read-only iterator of active Channels registered with this EventLoop. The returned value is not guaranteed to be exact accurate and should be viewed as a best effort. This method is expected to be called from within event loop.