Bug 1588

Summary:	adding observer to the main task causes an attach
Product:	frysk	Reporter:	Andrew Cagney <cagney>
Component:	general	Assignee:	Andrew Cagney <cagney>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P1
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:
Bug Depends on:
Bug Blocks:	1553

Description Andrew Cagney 2005-10-28 19:52:01 UTC

check that adding an observer to the main task of a single tasked process causes
it to attach; removing the observer causes it to detach.

Comment 1 Andrew Cagney 2005-11-03 01:57:55 UTC

Index: frysk-sys/frysk/sys/proc/ChangeLog
2005-11-02  Andrew Cagney  <cagney@redhat.com>

        * cni/slurp.hxx (scanJint, scanJlong): Declare.
        * cni/slurp.cxx (scanJint, scanJlong): New.
        * cni/Stat.cxx (scanJint, scanJlong): Delete.
        (refresh): Make p const.

Comment 2 Andrew Cagney 2005-11-03 16:54:57 UTC

Index: frysk-core/frysk/proc/ChangeLog
2005-11-03  Andrew Cagney  <cagney@redhat.com>

        * Proc.java: Reduce constructors to just one.
        * Task.java: Reduce constructors to just one.
        * LinuxTask.java: Update.
        * LinuxProc.java: Update.

Comment 3 Andrew Cagney 2005-11-03 17:18:05 UTC

Index: frysk-core/frysk/proc/ChangeLog
2005-11-03  Andrew Cagney  <cagney@redhat.com>

        * Proc.java (sendAttach(boolean)): Delete.
        * LinuxProc.java (sendAttach(boolean)): Ditto.

Comment 4 Andrew Cagney 2005-11-03 17:31:50 UTC

Index: frysk-core/frysk/proc/ChangeLog
2005-11-03  Andrew Cagney  <cagney@redhat.com>

        * Proc.java (Proc(Task,ProcId): New constructor.
        * LinuxProc.java (Proc(Task,ProcId): Ditto.
        * Task.java (Task(Task,TaskId)): New constructor.
        * LinuxTask.java (Task(Task,TaskId)): Ditto.
        * LinuxHost.java: Use new LinuxProc and LinuxTask constructors.

Comment 5 Andrew Cagney 2005-11-06 19:50:48 UTC

Index: frysk/proc/ChangeLog
2005-11-06  Andrew Cagney  <cagney@redhat.com>

        * TaskState.java: Delete .processRequestAddObserver, and
        .processRequestDeleteObserver.
        * Task.java: Re-implement .requestAddObserver and
        .requestDeleteObserver to pass the request, as an Observation, to
        the Task's Proc.
        * ProcState.java: Add .processPerformAddObservation.
        * Proc.java: Add .observations, .performAddObservation, and
        .performDeleteObservation.
        * Observation.java: New.

Comment 6 Andrew Cagney 2005-11-06 19:51:45 UTC

Index: frysk-core/frysk/proc/ChangeLog
2005-11-06  Andrew Cagney  <cagney@redhat.com>

        * TaskState.java: Add state "attached".
        * ProcState.java: When unattached, and RequestAddObserver
        transition to attached state.  Delay enabling Observations until
        after the attach has completed.
        * TestTaskAttachedObserver.java: New.

Comment 7 Andrew Cagney 2005-11-06 20:56:17 UTC

Index: frysk-core/frysk/proc/ChangeLog
2005-11-06  Andrew Cagney  <cagney@redhat.com>

        * TestTaskAttachedObserver.java: Replace
        .testAddObserverToOneMainDetachedTask with
        testAttachDetachMainTask.
        * Observation.java: Add .delete.
        * ProcState.java: In "running" state, handle
        .processPerformDeleteObservation.
        * Observable.java: Notify when an observer is deleted.