org.jikesrvm.mm.mmtk

Class SynchronizedCounter

java.lang.Object

org.mmtk.vm.SynchronizedCounter

org.jikesrvm.mm.mmtk.SynchronizedCounter

public final class SynchronizedCounter
extends SynchronizedCounter

A counter that supports atomic increment and reset.

Field Summary

Fields

Modifier and Type	Field and Description
private int	count
private static Offset	offset

Constructor Summary

Constructors

Constructor and Description
SynchronizedCounter()

Method Summary

Modifier and Type	Method and Description
static void	boot()
int	increment() Adds 1 to the counter.
int	peek() Peek at the counter
int	reset() Reset the counter to 0, returning its previous value.

Methods inherited from class java.lang.Object

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

Field Detail

offset

private static Offset offset

count

private int count

Constructor Detail

SynchronizedCounter

public SynchronizedCounter()

Method Detail

boot

public static void boot()

reset

public int reset()

Description copied from class: SynchronizedCounter

Reset the counter to 0, returning its previous value.

Specified by:

reset in class SynchronizedCounter

Returns:

The value of the counter, prior to reset.

increment

public int increment()

Description copied from class: SynchronizedCounter

Adds 1 to the counter.

Specified by:

increment in class SynchronizedCounter

Returns:

the value before the add

peek

public int peek()

Description copied from class: SynchronizedCounter

Peek at the counter

Specified by:

peek in class SynchronizedCounter

Returns:

The current value of the counter.