Re: [cdt-dev] Question about change events on CMemoryBlockExtension

[Derek Morris <dmsubs@xxxxxxxxxxxxx>]

Mikhail,

I'm sorry, but I think you misunderstand, that is not what I am 
seeing... I get this:
RESUME
CHANGE
CHANGE
SUSPEND

---
Derek

Mikhail Khodjaiants wrote:
> Derek,
>
> Yes, that's what you would expect. A CHANGE event is always fired before
> SUSPEND to reset the memory view and another CHANGE event is fired after the
> target is suspended if the content of the memory block has changed.
>
> Mikhail
> ----- Original Message ----- 
> From: "Derek Morris" <dmsubs@xxxxxxxxxxxxx>
> To: "CDT General developers list." <cdt-dev@xxxxxxxxxxx>
> Sent: Wednesday, July 19, 2006 6:59 AM
> Subject: Re: [cdt-dev] Question about change events on CMemoryBlockExtension
>
>
> > Mikhail,
> >
> > Thanks for the reply - sorry for the delay in replying, as I have been
> > on vacation.
> >
> > I have traced the events that are being received by my plugin. It seems
> > that I *always* receive a CHANGE before the SUSPEND. Is this what you
> > would expect? If not, any suggestions on what I am doing wrong?
> >
> > Thanks!
> > ---
> > Derek
> >
> > Mikhail Khodjaiants wrote:
> > > Derek,
> > >
> > > The CHANGE event fired after RESUME but before SUSPEND is used to reset
> > > the memory view. Another CHANGE event is fired after SUSPEND to notify
> > > the memory view that memory has changed.
> > >
> > > Mikhail
> > > ----- Original Message ----- From: "Derek Morris" <dmsubs@xxxxxxxxxxxxx>
> > > To: "CDT General developers list." <cdt-dev@xxxxxxxxxxx>
> > > Sent: Wednesday, July 05, 2006 1:34 PM
> > > Subject: [cdt-dev] Question about change events on CMemoryBlockExtension
> > >
> > >
> > > > Hi,
> > > >
> > > > I am writing a plugin that displays some data out of a (debug target's)
> > > > memory. I have allocated a CMemoryBlockExtension and am able to get
> data
> > > > out correctly.
> > > >
> > > > I have a DebugEventHandler which is monitoring for DebugEvent.CHANGE
> > > > events on the CMemoryBlockExtension, which I am seeing OK. So, while
> the
> > > > program is supended on a breakpoint, I can use the Memory monitor to
> > > > change the memory I am displaying. I see the change, and am able to
> > > > update my display.
> > > >
> > > > When I step the program, I see the CHANGE event, so try to update my
> > > > display. However, if I try to getBytesFromAddress on seeing the CHANGE
> > > > event, I get an exception that 'The target is not suspended'.
> > > >
> > > > So, I decided to monitor for DebugEvent.SUSPEND and DebugEvent.RESUME
> > > > messages. It seems that I am seeing the CHANGE event after the RESUME,
> > > > but before the SUSPEND...
> > > >
> > > > What is the correct protocol for using the CHANGE event and to then
> read
> > > > the memory that has changed?
> > > >
> > > > BTW: If it makes any difference, I am using GDB to a remote (embedded)
> > > > debug target.
> > > >
> > > > Thanks in advance for any help you can provide.
> > > >
> > > > ---
> > > > Derek
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