[PD] pyext detach method crashes pd with gem/pdp

[Thomas Grill]

Hi Vincent,
sorry, i won't be able to debug a setup involving pdp, since i don't use 
it and i don't have the time to set up all the stuff on linux.
You could send me a gdb backtrace, although that's probably not very 
meaningful or try to provoke a crash without using pdp.

greetings,
Thomas

vincent rioux schrieb:
> hi Thomas,
>
> sorry i should definetely have said "quick and dirty solution".
>
> i send you two files - you need the externals : py, Gem, pdp and pdp2gem.
>
> - open detach_crash.pd
> - press 'bang' for pdp acquisition start
> - press 'on' for gem window creation
>
> when detach is commented out in detach_crash.py, pd crashes on my 
> linux box (pd 39.2, pyext, Gem and pdp compiled from cvs, ubuntu 5.10).
>
> thanks for your fast reply!
> best,
> vincent
>
> Thomas Grill a écrit :
>> Hi Vincent,
>> thanks for the report, although commenting out self._detach(1) is no 
>> solution.
>> I could try to find the reason, if you can provide a simple crashing 
>> patch with as few external objects as possible.
>>
>> greetings,
>> Thomas
>>
>> vincent rioux schrieb:
>>> hi all,
>>> i just noticed that the detach method of pyext can cause pd to crash.
>>> i had a patch with gem, pdp and pdp2gem and as soon as i tried to 
>>> display video from pdp into gem display, pd crashed. spent quite a 
>>> hard time (not too long though) to find out why this happened.
>>> the solution is the following : comment out the self._detach(1) in 
>>> pyext files.
>>> best,
>>> vincent
>>>
>>>
>>>
>>>
>>>
>>
>
> ------------------------------------------------------------------------
>
> #N canvas 393 166 575 346 10;
> #X obj 15 56 pyx detach_crash creation;
> #X obj 16 110 gemwin;
> #X obj 16 86 r gemwin;
> #X msg 15 26 reload;
> #X msg 185 23 on;
> #X obj 390 109 pdp_v4l;
> #X msg 442 18 stop;
> #X msg 390 18 bang;
> #X obj 390 57 metro 40;
> #X obj 292 139 pdp2gem;
> #X obj 290 165 pix_rgba;
> #X obj 290 199 pix_texture;
> #X obj 289 228 rectangle 4 3;
> #X obj 265 100 gemhead;
> #X connect 2 0 1 0;
> #X connect 3 0 0 0;
> #X connect 4 0 0 1;
> #X connect 5 0 9 0;
> #X connect 6 0 8 0;
> #X connect 7 0 8 0;
> #X connect 8 0 5 0;
> #X connect 9 0 10 0;
> #X connect 10 0 11 0;
> #X connect 11 0 12 0;
> #X connect 13 0 9 0;
>   
> ------------------------------------------------------------------------
>
> import pyext
> import glob, os
> import random
> import time
>
> class creation(pyext._class):
>     _inlets=1
>     _outlets=0
>
>     def __init__(self):
>         #self._detach(1)
>         pass
>     
>     def on_1(self):
>         self._send('gemwin', 'border', (1,))
>         self._send('gemwin', 'offset', (0, 0))
>         self._send('gemwin', 'create', ())
>         self._send('gemwin', (1,))
>
>         
>   

-- 
Thomas Grill
http://grrrr.org