ReferenceProcessor (Jikes RVM API)

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org.mmtk.vm
Class ReferenceProcessor

java.lang.Object
  org.mmtk.vm.ReferenceProcessor

Direct Known Subclasses:: ReferenceProcessor

public abstract class ReferenceProcessor
extends Object
extends Object

This class manages SoftReferences, WeakReferences, and PhantomReferences.

Nested Class Summary
`static class`	`ReferenceProcessor.Semantics`

Constructor Summary
`ReferenceProcessor()`

Method Summary
`abstract void`	`clear()` Clear the contents of the table.
`abstract int`	`countWaitingReferences()`
`abstract void`	`forward(TraceLocal trace, boolean nursery)` Iterate over all references and forward.
`abstract void`	`scan(TraceLocal trace, boolean nursery)` Scan through the list of references.

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

Constructor Detail

ReferenceProcessor

public ReferenceProcessor()

Method Detail

clear

public abstract void clear()

Clear the contents of the table. This is called when reference types are disabled to make it easier for VMs to change this setting at runtime.

scan

public abstract void scan(TraceLocal trace,
                          boolean nursery)

Scan through the list of references.

Parameters:: trace - the thread local trace element.; nursery - true if it is safe to only scan new references.

forward

public abstract void forward(TraceLocal trace,
                             boolean nursery)

Iterate over all references and forward.

Parameters:: trace - The MMTk trace to forward to; nursery - The nursery collection hint

countWaitingReferences

public abstract int countWaitingReferences()

Returns:: the number of references objects on the queue