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From: Juju SL <jujusl@free.fr>
Newsgroups: comp.lang.ruby
Subject: Re: Tk : non blocking Tk.mainloop
Date: Fri, 29 Apr 2011 14:37:52 -0500
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.ruby:3743

Hi Hidetoshi,

I understand your need and as I asked for help, I have to help you back
:)

So I applied the patch to tk.rb :
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
..
set __initial_state_of_rubytk__ 1
trace add variable __initial_state_of_rubytk__ unset
__startup_rbtk_mainloop__
update
EOS

        begin
          begin
            #TclTkLib.mainloop_abort_on_exception =3D false
..
and
..
      }

      until INTERP_THREAD[:interp]
        #Thread.pass
   INTERP_THREAD.run
      end
      # INTERP_THREAD.run
      raise INTERP_THREAD[:interp] if INTERP_THREAD[:interp].kind_of?
Exception
..
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

Running the small script gives the same problem ; here is the end of the
debug output showing an exception :
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
tcltklib: destroy root widget
tcltklib: check `finalize-hook-proc'
tcltklib: check `foreach' & `after'
tcltklib: cancel after callbacks
tcltklib: finish ip_finalize
Exception `TypeError' at /usr/lib/ruby/1.9.1/tk.rb:1283 - exception
class/object expected
tcltklib: eventloop_ensure: current-thread : 8802278
tcltklib: eventloop_ensure: eventloop-thread : 8802278
tcltklib: eventloop-ensure: new eventloop-thread -> 4
tcltklib: finish current eventloop 8802278
tcltklib: ip is deleted
tcltklib: ip is deleted
tcltklib: ip is deleted
tcltklib: delete deleted IP
tcltklib: free Tcl Interp 881a678
tcltklib: complete freeing Tcl Interp
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

But the weird thing is that sometimes it runs OK ! (once every 6 ou 7
times) ; I just run the same command again and again...

Hope this will help !

Best regards
St=C3=A9phane

-- =

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