org.mmtk.plan

Class ControllerCollectorContext

java.lang.Object

org.mmtk.plan.CollectorContext

org.mmtk.plan.ControllerCollectorContext

public class ControllerCollectorContext
extends CollectorContext

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	concurrentCollection Is there concurrent collection activity
private int	lastRequestCount The request index that was last completed
private Monitor	lock The lock to use to manage collection
private int	requestCount The current request index
private boolean	requestFlag Flag used to control the 'race to request'
private ParallelCollectorGroup	workers The set of worker threads to use

Fields inherited from class org.mmtk.plan.CollectorContext

log

Constructor Summary

Constructors

Constructor and Description
ControllerCollectorContext(ParallelCollectorGroup workers) Create a controller context.

Method Summary

Modifier and Type	Method and Description
private void	clearRequest() Clear the collection request, making future requests incur an additional collection cycle.
void	initCollector(int id) Notify that the collector context is registered and ready to execute.
void	request() Request a collection.
void	requestConcurrentCollection() Request that concurrent collection is performed after this stop-the-world increment.
void	run() Main execution loop.
private void	waitForRequest() Wait until a request is received.

Methods inherited from class org.mmtk.plan.CollectorContext

allocCopy, copyCheckAllocator, getId, getLog, parallelWorkerCount, parallelWorkerOrdinal, postCopy, rendezvous

Methods inherited from class java.lang.Object

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

Field Detail

lock

private Monitor lock

The lock to use to manage collection

workers

private final ParallelCollectorGroup workers

The set of worker threads to use

requestFlag

private boolean requestFlag

Flag used to control the 'race to request'

requestCount

private int requestCount

The current request index

lastRequestCount

private int lastRequestCount

The request index that was last completed

concurrentCollection

private boolean concurrentCollection

Is there concurrent collection activity

Constructor Detail

ControllerCollectorContext

public ControllerCollectorContext(ParallelCollectorGroup workers)

Create a controller context.

Parameters:

workers - The worker group to use for collection.

Method Detail

initCollector

public void initCollector(int id)

Description copied from class: CollectorContext

Notify that the collector context is registered and ready to execute.

Overrides:

initCollector in class CollectorContext

Parameters:

id - The id of this collector context.

run

public void run()

Main execution loop.

Specified by:

run in class CollectorContext

requestConcurrentCollection

public void requestConcurrentCollection()

Request that concurrent collection is performed after this stop-the-world increment.

request

public void request()

Request a collection.

clearRequest

private void clearRequest()

Clear the collection request, making future requests incur an additional collection cycle.

waitForRequest

private void waitForRequest()

Wait until a request is received.