org.mmtk.plan

Class StopTheWorldCollector

java.lang.Object

org.mmtk.plan.CollectorContext

org.mmtk.plan.ParallelCollector

org.mmtk.plan.SimpleCollector

org.mmtk.plan.StopTheWorldCollector

Direct Known Subclasses:

CopyMSCollector, GenCollector, ImmixCollector, MCCollector, MSCollector, RCBaseCollector, SSCollector

public abstract class StopTheWorldCollector
extends SimpleCollector

This class (and its sub-classes) implement per-collector thread behavior and state.

MMTk assumes that the VM instantiates instances of CollectorContext in thread local storage (TLS) for each thread participating in collection. Accesses to this state are therefore assumed to be low-cost during mutator time.

See Also:

CollectorContext

Field Summary

Fields inherited from class org.mmtk.plan.SimpleCollector

sanityLocal

Fields inherited from class org.mmtk.plan.ParallelCollector

group, lastTriggerCount, workerOrdinal

Fields inherited from class org.mmtk.plan.CollectorContext

log

Constructor Summary

Constructors

Constructor and Description
StopTheWorldCollector()

Method Summary

Modifier and Type	Method and Description
void	collect() Perform garbage collection
void	concurrentCollect() Perform some concurrent garbage collection
void	concurrentCollectionPhase(short phaseId) Perform some concurrent collection work.
private static StopTheWorld	global()

Methods inherited from class org.mmtk.plan.SimpleCollector

collectionPhase

Methods inherited from class org.mmtk.plan.ParallelCollector

getCurrentTrace, parallelWorkerCount, parallelWorkerOrdinal, park, rendezvous, run

Methods inherited from class org.mmtk.plan.CollectorContext

allocCopy, copyCheckAllocator, getId, getLog, initCollector, postCopy

Methods inherited from class java.lang.Object

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

Constructor Detail

StopTheWorldCollector

public StopTheWorldCollector()

Method Detail

collect

public void collect()

Perform garbage collection

Overrides:

collect in class ParallelCollector

concurrentCollect

public final void concurrentCollect()

Perform some concurrent garbage collection

concurrentCollectionPhase

public void concurrentCollectionPhase(short phaseId)

Perform some concurrent collection work.

Parameters:

phaseId - The unique phase identifier

global

private static StopTheWorld global()

Returns:

The active global plan as a StopTheWorld instance.