Package dev.gmitch215.bytebox.locks

Class AtomicIntegerArray

java.lang.Object

dev.gmitch215.bytebox.locks.AtomicIntegerArray

public class AtomicIntegerArray
extends Object

java.util.concurrent.atomic.AtomicIntegerArray, which the class library does not carry even though it carries AtomicInteger.

Indivisible for the same reason as AtomicReferenceArray: one fiber runs at a time and none of these operations suspends, so no two of them interleave.

Since:

1.0.2

Constructor Summary

Constructors

Constructor	Description
AtomicIntegerArray(int length)
AtomicIntegerArray(int[] array)

Method Summary

Modifier and Type	Method	Description
final int	addAndGet(int i, int delta)
final boolean	compareAndSet(int i, int expect, int update)
final int	decrementAndGet(int i)
final int	get(int i)
final int	getAndAdd(int i, int delta)
final int	getAndDecrement(int i)
final int	getAndIncrement(int i)
final int	getAndSet(int i, int newValue)
final int	incrementAndGet(int i)
final void	lazySet(int i, int newValue)
final int	length()	Returns how many elements.
final void	set(int i, int newValue)
String	toString()
final boolean	weakCompareAndSet(int i, int expect, int update)

Methods inherited from class java.lang.Object

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

Constructor Details

AtomicIntegerArray

public AtomicIntegerArray(int length)

Parameters:

length - how many elements, each starting zero

AtomicIntegerArray

public AtomicIntegerArray(int[] array)

Parameters:

array - the elements to copy

Method Details

length

public final int length()

Returns how many elements.

Returns:

how many elements

get

public final int get(int i)

Parameters:

i - the index

Returns:

the element

set

public final void set(int i,
 int newValue)

Parameters:

i - the index

newValue - the value to store

lazySet

public final void lazySet(int i,
 int newValue)

Parameters:

i - the index

newValue - the value to store

getAndSet

public final int getAndSet(int i,
 int newValue)

Parameters:

i - the index

newValue - the value to store

Returns:

the value that was there

compareAndSet

public final boolean compareAndSet(int i,
 int expect,
 int update)

Parameters:

i - the index

expect - the value that must be there

update - the value to store

Returns:

whether it was stored

weakCompareAndSet

public final boolean weakCompareAndSet(int i,
 int expect,
 int update)

Parameters:

i - the index

expect - the value that must be there

update - the value to store

Returns:

whether it was stored

getAndAdd

public final int getAndAdd(int i,
 int delta)

Parameters:

i - the index

delta - how much to add

Returns:

the value before adding

addAndGet

public final int addAndGet(int i,
 int delta)

Parameters:

i - the index

delta - how much to add

Returns:

the value after adding

getAndIncrement

public final int getAndIncrement(int i)

Parameters:

i - the index

Returns:

the value before incrementing

getAndDecrement

public final int getAndDecrement(int i)

Parameters:

i - the index

Returns:

the value before decrementing

incrementAndGet

public final int incrementAndGet(int i)

Parameters:

i - the index

Returns:

the value after incrementing

decrementAndGet

public final int decrementAndGet(int i)

Parameters:

i - the index

Returns:

the value after decrementing

toString

public String toString()

Overrides:

toString in class Object