Class SCQHeader.HeadAndTailRef<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractQueue<E>

com.github.benmanes.caffeine.SCQHeader.PadHead<E>

com.github.benmanes.caffeine.SCQHeader.HeadRef<E>

com.github.benmanes.caffeine.SCQHeader.PadHeadAndTail<E>

com.github.benmanes.caffeine.SCQHeader.HeadAndTailRef<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, Queue<E>

Direct Known Subclasses:

SingleConsumerQueue

Enclosing class:

SCQHeader

abstract static class SCQHeader.HeadAndTailRef<E>
extends SCQHeader.PadHeadAndTail<E>

Enforces a memory layout to avoid false sharing by padding the tail node.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) @Nullable SingleConsumerQueue.Node<E>	tail
(package private) static final long	TAIL_OFFSET

Fields inherited from class SCQHeader.PadHeadAndTail

p120, p121, p122, p123, p124, p125, p126, p127, p128, p129, p130, p131, p132, p133, p134, p135, p136, p137, p138, p139, p140, p141, p142, p143, p144, p145, p146, p147, p148, p149, p150, p151, p152, p153, p154, p155, p156, p157, p158, p159, p160, p161, p162, p163, p164, p165, p166, p167, p168, p169, p170, p171, p172, p173, p174, p175, p176, p177, p178, p179, p180, p181, p182, p183, p184, p185, p186, p187, p188, p189, p190, p191, p192, p193, p194, p195, p196, p197, p198, p199, p200, p201, p202, p203, p204, p205, p206, p207, p208, p209, p210, p211, p212, p213, p214, p215, p216, p217, p218, p219, p220, p221, p222, p223, p224, p225, p226, p227, p228, p229, p230, p231, p232, p233, p234, p235, p236, p237, p238, p239

Fields inherited from class SCQHeader.HeadRef

head

Fields inherited from class SCQHeader.PadHead

p000, p001, p002, p003, p004, p005, p006, p007, p008, p009, p010, p011, p012, p013, p014, p015, p016, p017, p018, p019, p020, p021, p022, p023, p024, p025, p026, p027, p028, p029, p030, p031, p032, p033, p034, p035, p036, p037, p038, p039, p040, p041, p042, p043, p044, p045, p046, p047, p048, p049, p050, p051, p052, p053, p054, p055, p056, p057, p058, p059, p060, p061, p062, p063, p064, p065, p066, p067, p068, p069, p070, p071, p072, p073, p074, p075, p076, p077, p078, p079, p080, p081, p082, p083, p084, p085, p086, p087, p088, p089, p090, p091, p092, p093, p094, p095, p096, p097, p098, p099, p100, p101, p102, p103, p104, p105, p106, p107, p108, p109, p110, p111, p112, p113, p114, p115, p116, p117, p118, p119

Constructor Summary

Constructors

Constructor	Description
HeadAndTailRef()

Method Summary

Modifier and Type	Method	Description
(package private) boolean	casTail(SingleConsumerQueue.Node<E> expect, SingleConsumerQueue.Node<E> update)
(package private) void	lazySetTail(SingleConsumerQueue.Node<E> next)

Methods inherited from class AbstractQueue

add, addAll, clear, element, remove

Methods inherited from class AbstractCollection

contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString

Methods inherited from class Object

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

Methods inherited from interface Collection

contains, containsAll, equals, hashCode, isEmpty, iterator, parallelStream, remove, removeAll, removeIf, retainAll, size, spliterator, stream, toArray, toArray, toArray

Methods inherited from interface Iterable

forEach

Methods inherited from interface Queue

offer, peek, poll

Field Details

TAIL_OFFSET

static final long TAIL_OFFSET

tail

volatile @Nullable SingleConsumerQueue.Node<E> tail

Constructor Details

HeadAndTailRef

HeadAndTailRef()

Method Details

lazySetTail

void lazySetTail(SingleConsumerQueue.Node<E> next)

casTail

boolean casTail(SingleConsumerQueue.Node<E> expect,
 SingleConsumerQueue.Node<E> update)