frysk.testbed
Class TaskObserverBase

java.lang.Object
  frysk.testbed.TaskObserverBase

All Implemented Interfaces:

Observer, TaskObserver

Direct Known Subclasses:

DaemonBlockedAtEntry.ExecBlockingObserver, DaemonBlockedAtSignal.RunToSignal, StopEventLoopWhenProcTerminated, StressAttachDetachSignaledTask.AttachDetach, StressAttachDetachSignaledTask.SignalStorm, TestExec.ExecBlockCounter, TestFirstInstruction.AttachedObserver, TestRuntimeIsa.AttachedObserver, TestTaskForkedObserver.ForkObserver, TestTaskObserver.AttachedObserver, TestTaskObserverBlocked.BlockingFibonacci, TestTaskObserverBlocked.SpawnObserver, TestTaskObserverDetach.Detach, TestTaskSyscallObserver.SyscallObserver, TestTaskTerminateObserver.Terminate, TestTaskTerminateObserver.TerminatingCounter

public abstract class TaskObserverBase
extends Object
implements TaskObserver

A base class for implementing TaskObservers. This provides a framework for both automatically adding and implementing TaskObserver's. The client supplied .updateClass method is called as each new task is found. It should register itself with the applicable observer.

Nested Class Summary

Nested classes/interfaces inherited from interface frysk.proc.TaskObserver

TaskObserver.Cloned, TaskObserver.Code, TaskObserver.Execed, TaskObserver.Forked, TaskObserver.Instruction, TaskObserver.Signaled, TaskObserver.Syscalls, TaskObserver.Terminated, TaskObserver.Terminating, TaskObserver.Watch

Field Summary

private List	added Count of number of times that this observer was added to a Task's observer set.
private List	deleted Count of number of times this observer was deleted from a Task's observer set.
private static Log	fine

Constructor Summary

TaskObserverBase()

Method Summary

int	addedCount()
void	addedTo(Object o) Acknowledge the request to add this Observer from Object's set of observers was successful.
void	addFailed(Object o, Throwable w) The add operation failed, should never happen.
int	deletedCount()
void	deletedFrom(Object o) Acknowledge the request to delete this Observer from Object's set of observers was successful (or that the Observer was spontaneously deleted, e.g., due to a task exit).
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

fine

private static final Log fine

added

private List added

Count of number of times that this observer was added to a Task's observer set.

deleted

private List deleted

Count of number of times this observer was deleted from a Task's observer set.

Constructor Detail

TaskObserverBase

public TaskObserverBase()

Method Detail

addedTo

public void addedTo(Object o)

Description copied from interface: Observer

Acknowledge the request to add this Observer from Object's set of observers was successful.

Specified by:

addedTo in interface Observer

addedCount

public int addedCount()

deletedFrom

public void deletedFrom(Object o)

Description copied from interface: Observer

Acknowledge the request to delete this Observer from Object's set of observers was successful (or that the Observer was spontaneously deleted, e.g., due to a task exit).

Specified by:

deletedFrom in interface Observer

deletedCount

public int deletedCount()

addFailed

public void addFailed(Object o,
                      Throwable w)

The add operation failed, should never happen.

Specified by:

addFailed in interface Observer

toString

public String toString()

Overrides:

toString in class Object