orc.runtime.regions
Class SubRegion

java.lang.Object
  orc.runtime.regions.Region
      orc.runtime.regions.SubRegion

Direct Known Subclasses:

GroupRegion, LogicalClock, SemiRegion

public abstract class SubRegion
extends Region

Regions are used to track when some (sub-)computation terminates.

Currently the region methods must be synchronized, because tokens can be killed by independent threads (such as site calls in progress), triggering an update on the region. Maybe we should have a separate queue deal with dead tokens so this isn't necessary.

Field Summary

protected Region

parent

Constructor Summary

SubRegion(Region parent)

Method Summary

protected void	activate() Called when this region becomes not quiescent.
protected void	deactivate() Called when this region becomes quiescent.
Region	getParent()
protected void	onClose() Override this in subclasses to handle the closing of the region.

Methods inherited from class orc.runtime.regions.Region

add, add, addActive, close, maybeDeactivate, putContainedTokens, remove, remove, removeActive

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected Region parent

Constructor Detail

SubRegion

public SubRegion(Region parent)

Method Detail

onClose

protected void onClose()

Description copied from class: Region

Override this in subclasses to handle the closing of the region.

Overrides:

onClose in class Region

deactivate

protected void deactivate()

Description copied from class: Region

Called when this region becomes quiescent.

Overrides:

deactivate in class Region

activate

protected void activate()

Description copied from class: Region

Called when this region becomes not quiescent.

Overrides:

activate in class Region

getParent

public final Region getParent()