frysk.testbed
Class DaemonBlockedAtSignal.RunToSignal

java.lang.Object
  frysk.testbed.TaskObserverBase
      frysk.testbed.DaemonBlockedAtSignal.RunToSignal

All Implemented Interfaces:

Observer, TaskObserver, TaskObserver.Signaled, TaskObserver.Terminated

Enclosing class:

DaemonBlockedAtSignal

private class DaemonBlockedAtSignal.RunToSignal
extends TaskObserverBase
implements TaskObserver.Signaled, TaskObserver.Terminated

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

Constructor Summary

private

DaemonBlockedAtSignal.RunToSignal()

Method Summary

Action	updateSignaled(Task task, Signal value) The SIGNAL is pending delivery to the task.
Action	updateTerminated(Task task, Signal sig, int value) Called once the Task has terminated; the process no longer exists.

Methods inherited from class frysk.testbed.TaskObserverBase

addedCount, addedTo, addFailed, deletedCount, deletedFrom, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface frysk.proc.Observer

addedTo, addFailed, deletedFrom

Constructor Detail

DaemonBlockedAtSignal.RunToSignal

private DaemonBlockedAtSignal.RunToSignal()

Method Detail

updateSignaled

public Action updateSignaled(Task task,
                             Signal value)

Description copied from interface: TaskObserver.Signaled

The SIGNAL is pending delivery to the task. Return Action.BLOCK to block the task's further execution. XXX: This gets weird. At present and in theory, a client wanting to discard a signal would need to sequence the following: tell the task to scrub discard the signal; tell the task to remove this observer from the set of blockers; return Action.BLOCK so that this task is added to the set of blockers. Perhaps it would be better to always add an observer to the blocker pool and then require explict removal.

Specified by:

updateSignaled in interface TaskObserver.Signaled

updateTerminated

public Action updateTerminated(Task task,
                               Signal sig,
                               int value)

Description copied from interface: TaskObserver.Terminated

Called once the Task has terminated; the process no longer exists. If SIGNAL is non-NULL it is the signal causing the termination, else STATUS is the exit value passed to _exit(2).

Specified by:

updateTerminated in interface TaskObserver.Terminated