[GRASS-dev] stop button in GUI?

[Michael Barton]

Thanks Anna,

I will try to compile and test today. This is in GRASS 7 right?

Michael

On Jun 15, 2012, at 10:43 AM, Anna Kratochvílová wrote:

> Hi,
> 
> On Thu, May 24, 2012 at 10:04 AM, Michael Barton <Michael.Barton at asu.edu> wrote:
>> 
>> There is a "stop" button in the GUI of all modules. When I press it, the
>> GUI dialog returns to a state where I can reinitiate the module process. But
>> looking in my system monitor, the old process is still continuing. Is this
>> the case for all systems or just the Mac? If for all systems, the "stop"
>> button seems somewhat misleading.
>> 
>> Michael
> 
> to summarize: on Linux it is not working, on Windows I cannot test.
> The important part is this Popen object (core/gcmd.py):
> line 540:
>            self.module = Popen(args,
>                                stdin = subprocess.PIPE,
>                                stdout = subprocess.PIPE,
>                                stderr = subprocess.PIPE,
>                                shell = sys.platform == "win32",
>                                env = self.env)
> 
> and then line 578:
>            self.module.kill()
> which doesn't work. I tried to call terminate(), for my Ubuntu it
> works, however I have no idea why. This change is in r52081 in grass7,
> so Micheal or anyone else, you can test it. The problem might be in
> calling this Popen from thread ( which seems to be not recommended
> according to some internet discussions). This is all I can do because
> I really don't understand this issue.
> 
> Anna

_____________________
C. Michael Barton
Visiting Scientist, Integrated Science Program
National Center for Atmospheric Research &
University Corporation for Atmospheric Research
303-497-2889 (voice)

Director, Center for Social Dynamics & Complexity 
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu