edu.utah.janosvm.sys
Class Exportable

java.lang.Object
  |
  +--edu.utah.janosvm.sys.Exportable

Direct Known Subclasses:

AggregateStateManager.IsolateStatus, CommHashtable, CommQueue, CommSpace, FaxPortBackEnd, MemoryBlockBackEnd, OneWayLink_RendezvousPoint, TeamBackEnd

public abstract class Exportable

extends java.lang.Object

Abstract base class for objects {@linkplain Team#exportObject exported} from a team.

Author:

Tim Stack, Utah Janos Team

See Also:

Importable, ExportManager, Team.exportObject(java.lang.Object, edu.utah.janosvm.sys.Exportable)

Field Summary

private ExportManager	anonManager Our ExportManager if we're exported anonymously.
private TeamBackEnd	owner The owner team of this Exportable, cached here so that importers can easily visit the team to do some work.

Constructor Summary

protected	Exportable() Standard Exportable constructor, currently, just caches the owner team pointer.
(package private)	Exportable(int dummy) Special constructor used by the kernel constructor since we can't call TeamBackEnd.getCurrentTeam() this early.

Method Summary

ExportManager	getAnonymousManager()
TeamReservation	pushOwnerReservation() Push a TeamReservation for this objects owner team.
void	returnFromOwner() Switch the current thread to the previous team context.
(package private) void	setAnonymousManager(ExportManager em) Set the ExportManager created when this object was exported anonymously.
void	switchToOwner() Switch the current thread to the this objects owner team.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait, wait0

Field Detail

owner

private final TeamBackEnd owner

The owner team of this Exportable, cached here so that importers can easily visit the team to do some work.

anonManager

private ExportManager anonManager

Our ExportManager if we're exported anonymously.

Constructor Detail

Exportable

Exportable(int dummy)

Special constructor used by the kernel constructor since we can't call TeamBackEnd.getCurrentTeam() this early.

Parameters:

dummy - Parameter for overloading in the kernel.

Exportable

protected Exportable()

Standard Exportable constructor, currently, just caches the owner team pointer.

Method Detail

setAnonymousManager

void setAnonymousManager(ExportManager em)

Set the ExportManager created when this object was exported anonymously.

Parameters:

em - ExportManager thats managing this object.

getAnonymousManager

public ExportManager getAnonymousManager()

Returns:

The ExportManager thats managing this anonymously exported object.

switchToOwner

public void switchToOwner()
                   throws DeadTeamException,
                          TeamEjectionException

Switch the current thread to the this objects owner team.

Throws:

DeadTeamException - if one of the teams involved is dead.

TeamEjectionException - if this thread was ejected from the team while it was running.

returnFromOwner

public void returnFromOwner()

Switch the current thread to the previous team context.

pushOwnerReservation

public TeamReservation pushOwnerReservation()
                                     throws DeadTeamException

Push a TeamReservation for this objects owner team.

Returns:

A TeamReservation referring to the owner.

Throws:

A - DeadTeamException if one of the teams involved is dead.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object