[PD] dyn~ crash

[Thomas Grill]

Another thing that just came to my mind.... with larger abstractions  
you'll probably find that it's not a good idea to allocate voices in  
pd with means of scripting, since audio will click (maybe not at  
home, but when you are performing).
It's better to pre-allocate a number of voices and do some voice  
management, maybe even with switch~ to save CPU.

best greetings,
Thomas

Am 25.02.2007 um 22:21 schrieb 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
>
> <crash-070225.pd>
>
> 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;
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>
> Thomas Grill
> http://grrrr.org
>
>
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Thomas Grill
http://grrrr.org