[PD] dyn~ crash

[Thomas Grill]

Hi Marius,
it's a problem inherent in PD, which was discussed just a few days  
ago. An object can't be deleted when messages sent by it are still  
processed.
It's easy to circumvent in your case: Delay the closing just a  
bit.... find the attached patch. I don't think this is something that  
dyn~ should "fix".

By the way - with your patch attachment you exposed something that  
might be considered a pd bug:
Two patches that are pasted into one file will open to canvases, but  
pd will crash on every save attempt of it.


all the best,
Thomas

-------------- next part --------------
A non-text attachment was scrubbed...
Name: crash-070225.pd
Type: application/octet-stream
Size: 501 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20070225/e1b8cdea/attachment.obj>
-------------- next part --------------

Am 25.02.2007 um 21:22 schrieb marius schebella:

> Hi thomas,
> it is easy to build a loop which can crash dyn~, and I wonder if it  
> would be possible to avoid a crash.
> I use objects, which play for a random anount of time and then they  
> send their id when they're finished and so dyn knows that it is  
> time to delete them.
> I understand wyy this is a problem, and I also found some sort of  
> work around. but it would be easier if dyn would catch that recursion.
> any idea?
> marius.
>
>
> #N canvas 310 87 250 256 10;
> #X obj 74 116 symbol \$1;
> #X obj 74 66 loadbang;
> #X obj 74 89 delay \$2;
> #X obj 74 140 s killme;
> #X connect 0 0 3 0;
> #X connect 1 0 2 0;
> #X connect 2 0 0 0;
> #N canvas 639 186 681 434 10;
> #X obj 527 220 symbol \$1;
> #X obj 527 170 loadbang;
> #X obj 527 193 delay \$2;
> #X obj 527 244 s killme;
> #X text 416 126 that is the test abstraction;
> #X obj 223 194 cnv 15 100 60 empty empty empty 20 12 0 14 -258049  
> -66577
> 0;
> #X obj 86 271 dyn~ 0 0 0 0;
> #X obj 236 201 r killme;
> #X msg 236 230 del \$1;
> #X msg 86 90 newobj . a1 test1 a1 2000;
> #X text 55 50 CAUTION!!! By clicking here \, Pd might crash!;
> #X connect 0 0 3 0;
> #X connect 1 0 2 0;
> #X connect 2 0 0 0;
> #X connect 7 0 8 0;
> #X connect 8 0 6 0;
> #X connect 9 0 6 0;
> _______________________________________________
> PD-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/ 
> listinfo/pd-list

Thomas Grill
http://grrrr.org