org.mmtk.vm

Class SynchronizedCounter

java.lang.Object

org.mmtk.vm.SynchronizedCounter

Direct Known Subclasses:

SynchronizedCounter

public abstract class SynchronizedCounter
extends Object

A counter that supports atomic increment and reset.

Constructor Summary

Constructors

Constructor and Description
SynchronizedCounter()

Method Summary

Modifier and Type	Method and Description
abstract int	increment() Adds 1 to the counter.
abstract int	peek() Peek at the counter
abstract 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

Constructor Detail

SynchronizedCounter

public SynchronizedCounter()

Method Detail

reset

public abstract int reset()

Reset the counter to 0, returning its previous value.

Returns:

The value of the counter, prior to reset.

increment

public abstract int increment()

Adds 1 to the counter.

Returns:

the value before the add

peek

public abstract int peek()

Peek at the counter

Returns:

The current value of the counter.