[GRASS-dev] [GRASS GIS] #2151: g.gui.* modules which use temporal framework leave processes after exiting

[GRASS GIS]

#2151: g.gui.* modules which use temporal framework leave processes after exiting
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 Reporter:  annakrat                        |       Owner:  grass-dev@…              
     Type:  defect                          |      Status:  new                      
 Priority:  normal                          |   Milestone:  7.0.0                    
Component:  Python                          |     Version:  svn-trunk                
 Keywords:  g.gui.animation, temporal, RCP  |    Platform:  Linux                    
      Cpu:  All                             |  
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Comment(by annakrat):

 Replying to [comment:6 annakrat]:
 > I just tried this python
 [http://code.activestate.com/recipes/278731-creating-a-daemon-the-python-
 way/ recipe] and it worked for me, the processes are terminated. I tried
 to find the difference and it seems that just this line is enough (in the
 GuiModuleMain function):
 >
 > {{{
 > --- core/utils.py     (revision 58561)
 > +++ core/utils.py     (working copy)
 > @@ -1064,7 +1064,8 @@
 >          child_pid = os.fork()
 >          if child_pid == 0:
 >              mainfn()
 > -        os._exit(0)
 > +        else:
 > +            os._exit(0)
 >      else:
 >          mainfn()
 >
 > }}}
 >
 > Can I apply it safely or can it cause some other troubles?


 Soeren had the same idea (r58580). Unfortunately, I can't say it's solved
 completely. I have still problem with g.gui.timeline. The subprocesses
 don't terminate when it's called with parameter input or when it's called
 without any parameter but then you display the dataset. When it's just
 opened and closed the subprocesses terminate. For g.gui.animation it's
 seems ok now. So I am confused what's different in g.gui.timeline. Well,
 at least some progress...

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2151#comment:7>
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