BBHeader.ReadAndWriteCounterRef

java.lang.Object
- com.github.benmanes.caffeine.cache.BBHeader.PadReadCounter
- - com.github.benmanes.caffeine.cache.BBHeader.ReadCounterRef
  - - com.github.benmanes.caffeine.cache.BBHeader.PadWriteCounter
    - - com.github.benmanes.caffeine.cache.BBHeader.ReadAndWriteCounterRef

Direct Known Subclasses:

BoundedBuffer.RingBuffer

Enclosing class:

BBHeader
```
abstract static class BBHeader.ReadAndWriteCounterRef
extends BBHeader.PadWriteCounter
```
Enforces a memory layout to avoid false sharing by padding the write count.

Field Summary

Fields
Modifier and Type Field Description

(package private) static long WRITE_OFFSET

(package private) long writeCounter
- Fields inherited from class com.github.benmanes.caffeine.cache.BBHeader.PadWriteCounter
  p20, p21, p22, p23, p24, p25, p26, p27, p30, p31, p32, p33, p34, p35, p36
- Fields inherited from class com.github.benmanes.caffeine.cache.BBHeader.ReadCounterRef
  READ_OFFSET, readCounter
- Fields inherited from class com.github.benmanes.caffeine.cache.BBHeader.PadReadCounter
  p00, p01, p02, p03, p04, p05, p06, p07, p10, p11, p12, p13, p14, p15, p16

Constructor Summary

Constructors
Constructor Description

ReadAndWriteCounterRef(int writes)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) boolean`	`casWriteCounter(long expect, long update)`
`(package private) long`	`relaxedWriteCounter()`

Methods inherited from class com.github.benmanes.caffeine.cache.BBHeader.ReadCounterRef
lazySetReadCounter

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

WRITE_OFFSET
```
static final long WRITE_OFFSET
```

writeCounter
```
volatile long writeCounter
```

Constructor Detail
- ReadAndWriteCounterRef
```
ReadAndWriteCounterRef(int writes)
```

Method Detail

relaxedWriteCounter
```
long relaxedWriteCounter()
```

casWriteCounter

boolean casWriteCounter(long expect,
                        long update)