Re: [orca-list] [Fwd: Re: In Ubuntu 10.04, when Orca is running, impossible to make USB startup disk with usb-creator-gtk application]

[Tom Masterson <kd7cyu yahoo com>]

If I were to say anything about guidelines I would say that the main 
thread should be the one that handles display etc.  In this case the main 
thread is doing the initial display and then when you press install it 
goes ahead and does the creation stuff and uses other threads to display 
the information.  It would probably be safer to have put the creation 
stuff on a separate thread.  But that too is open to debate.  Obviously 
both the ATS and other developers have a responsibility to write 
thread-safe code as much as possible.

Tom

On Mon, 19 Apr 2010, Isaac Porat wrote:

> Hi Joanie
>
> Are there any guidelines on these threading issues and remedies in respect to 
> accessibility?
> A reference in a bug report with this type of problem I think could help 
> developers.
>
> Thanks
> Isaac
>
>
> On 19/04/2010 20:38, Joanmarie Diggs wrote:
> > Meant to CC the list on this reply. Need more sleep I guess. :-)
> > --joanie
> >
> > -------- Forwarded Message --------
> > From: Joanmarie Diggs<joanmarie diggs gmail com>
> > To: Isaac Porat<isaac porat me uk>
> > Subject: Re: [orca-list] In Ubuntu 10.04, when Orca is running,
> > impossible to make USB startup disk with usb-creator-gtk application
> > Date: Mon, 19 Apr 2010 15:36:50 -0400
> >
> > I believe there is another way to ensure your app's threads don't hose
> > us. But I'm not a thread expert. I do see a certain amount of obligation
> > to help app developers identify where their app is messing us up. Then I
> > think it's their obligation to solve the problem they are creating (and
> > test it with ATs like Orca) in whatever way they deem fit.
> >
> > --joanie
> >
> > On Mon, 2010-04-19 at 20:33 +0100, Isaac Porat wrote:
> >
> > > Hi
> > >
> > > The same type of problem happens in Lucid with Computer Janitor
> > > sudo computer-janitor-gtk
> > >
> > > Using an external thread is a valid and sometimes the most convenient
> > > method to achieve gui update is it not possible to modify at-spi to cope
> > > with these scenarios?
> > >
> > > Thanks
> > > Isaac
> > >
> > > On 19/04/2010 20:09, Joanmarie Diggs wrote:
> > >
> > > > On Mon, 2010-04-19 at 11:46 -0700, Tom Masterson wrote:
> > > >
> > > >
> > > > > I have scanned the gtk frontend code and if I am reading it correctly.
> > > > > THey use separate wrapped threads for the progressbar, retry dialog,
> > > > > failure dialog, and success dialog.  I suspect this is the problem we 
> > > > > are
> > > > > seeing and I don't know how to test it or let the maintainers know.
> > > > For any suspect gui changes, you can test by using g_object_idle_add()
> > > > (in Python gobject.idle_add()).
> > > >
> > > > --joanie
> > > >
> > > > _______________________________________________
> > > > orca-list mailing list
> > > > orca-list gnome org
> > > > http://mail.gnome.org/mailman/listinfo/orca-list
> > > > Visithttp://live.gnome.org/Orca  for more information on Orca.
> > > > The manual is 
> > > > athttp://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> > > > The FAQ is athttp://live.gnome.org/Orca/FrequentlyAskedQuestions
> > > > Netiquette Guidelines are 
> > > > athttp://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> > > > Log bugs and feature requests athttp://bugzilla.gnome.org
> > > > Find out how to help athttp://live.gnome.org/Orca/HowCanIHelp
> > > _______________________________________________
> > > orca-list mailing list
> > > orca-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/orca-list
> > > Visit http://live.gnome.org/Orca for more information on Orca.
> > > The manual is at 
> > > http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> > > The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> > > Netiquette Guidelines are at 
> > > http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> > > Log bugs and feature requests at http://bugzilla.gnome.org
> > > Find out how to help at http://live.gnome.org/Orca/HowCanIHelp
> >
> >
> >
> > _______________________________________________
> > orca-list mailing list
> > orca-list gnome org
> > http://mail.gnome.org/mailman/listinfo/orca-list
> > Visit http://live.gnome.org/Orca for more information on Orca.
> > The manual is at 
> > http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> > The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> > Netiquette Guidelines are at 
> > http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> > Log bugs and feature requests at http://bugzilla.gnome.org
> > Find out how to help at http://live.gnome.org/Orca/HowCanIHelp
> _______________________________________________
> orca-list mailing list
> orca-list gnome org
> http://mail.gnome.org/mailman/listinfo/orca-list
> Visit http://live.gnome.org/Orca for more information on Orca.
> The manual is at 
> http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> Netiquette Guidelines are at 
> http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> Log bugs and feature requests at http://bugzilla.gnome.org
> Find out how to help at http://live.gnome.org/Orca/HowCanIHelp