org.mmtk.policy.immix

Class CollectorLocal

java.lang.Object

org.mmtk.policy.immix.CollectorLocal

public final class CollectorLocal
extends Object

This class implements unsynchronized (local) elements of an immix collector. Marking is done using both a bit in each header's object word, and a mark byte. Sweeping is performed lazily.

Field Summary

Fields

Modifier and Type	Field and Description
private ChunkList	chunkMap
private Defrag	defrag
private ImmixSpace	immixSpace

Constructor Summary

Constructors

Constructor and Description
CollectorLocal(ImmixSpace space) Constructor

Method Summary

Modifier and Type	Method and Description
void	prepare(boolean majorGC) Prepare for a collection.
void	release(boolean majorGC) Finish up after a collection.
private void	resetLineMarksAndDefragStateTable(int ordinal, short threshold)
private void	sweepAllBlocks(boolean majorGC)

Methods inherited from class java.lang.Object

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

Field Detail

immixSpace

private final ImmixSpace immixSpace

chunkMap

private final ChunkList chunkMap

defrag

private final Defrag defrag

Constructor Detail

CollectorLocal

public CollectorLocal(ImmixSpace space)

Constructor

Parameters:

space - The mark-sweep space to which this allocator instances is bound.

Method Detail

prepare

public void prepare(boolean majorGC)

Prepare for a collection. If paranoid, perform a sanity check.

Parameters:

majorGC - whether the collection will be a full heap collection

resetLineMarksAndDefragStateTable

private void resetLineMarksAndDefragStateTable(int ordinal,
                                               short threshold)

release

public void release(boolean majorGC)

Finish up after a collection. We help sweeping all the blocks in parallel.

Parameters:

majorGC - whether the collection was a full heap collection

sweepAllBlocks

private void sweepAllBlocks(boolean majorGC)