tech.iooo.boot.netty.concurrent

Class AttachmentThreadUtils

java.lang.Object

tech.iooo.boot.netty.concurrent.AttachmentThreadUtils

public final class AttachmentThreadUtils
extends Object

当线程为AttachmentThread、FastThreadLocalThread时能达到ThreadLocal 1.5x的性能；
当线程不是上述两种，并且线程id小于16k时，可获得跟ThreadLocal相同的性能；
当线程不满足上述两种情况，将只能达到ThreadLocal 0.7x的性能；
请谨慎使用，小心内存泄漏！

Author:

Hank

Constructor Summary

Constructors

Constructor and Description
AttachmentThreadUtils()

Method Summary

Modifier and Type	Method and Description
static <T> T	get(int index)
static <T> T	getOrUpdate(int index, Supplier<T> producer)
static int	nextVarIndex() 寻找下一个线程本地变量位置
static <T> void	put(int index, T value)

Methods inherited from class java.lang.Object

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

Constructor Detail

AttachmentThreadUtils

public AttachmentThreadUtils()

Method Detail

nextVarIndex

public static int nextVarIndex()

寻找下一个线程本地变量位置

getOrUpdate

public static <T> T getOrUpdate(int index,
                                Supplier<T> producer)

Parameters:

index - 通过 nextVarIndex() 获得

producer - 尽量使用final常量以获得更好的性能

get

public static <T> T get(int index)

Parameters:

index - 通过 nextVarIndex() 获得

put

public static <T> void put(int index,
                           T value)

Parameters:

index - 通过 nextVarIndex() 获得