org.mmtk.plan

Class TraceWriteBuffer

java.lang.Object

org.mmtk.plan.TransitiveClosure

org.mmtk.plan.TraceWriteBuffer

public final class TraceWriteBuffer
extends TransitiveClosure

This class is used to push values in one direction during a trace. It was designed for use in mutators that use write barriers to push work to collector threads during concurrent tracing.

See Also:

TraceLocal

Field Summary

Fields

Modifier and Type	Field and Description
private WriteBuffer	buffer

Fields inherited from class org.mmtk.plan.TransitiveClosure

specializedScan

Constructor Summary

Constructors

Constructor and Description
TraceWriteBuffer(Trace trace) Constructor

Method Summary

Modifier and Type	Method and Description
void	flush() Flush the buffer to the trace.
boolean	isFlushed()
void	processNode(ObjectReference object) Enqueue an object during a trace.

Methods inherited from class org.mmtk.plan.TransitiveClosure

getSpecializedScanClass, processEdge, registerSpecializedScan

Methods inherited from class java.lang.Object

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

Field Detail

buffer

private final WriteBuffer buffer

Constructor Detail

TraceWriteBuffer

public TraceWriteBuffer(Trace trace)

Constructor

Parameters:

trace - The global trace class to use.

Method Detail

flush

public void flush()

Flush the buffer to the trace.

isFlushed

public boolean isFlushed()

Returns:

true if the buffer is flushed.

processNode

public void processNode(ObjectReference object)

Enqueue an object during a trace.

Overrides:

processNode in class TransitiveClosure

Parameters:

object - The object to enqueue