[PD] open multiple files limits?

Albert Rafetseder albert.rafetseder at univie.ac.at
Thu Jan 11 19:27:58 CET 2024


(CC: Remmy, not sure if on the Pd mailing list)

> looks like there's a size limit for the callback message.

...and it's around 4 kilobytes, from a quick test with 
very-long-filename-files and the [openpanel] help patch which [print]s 
the result of [openpanel].

I see one OK and three bad results, depending on the combined length of 
filenames (which I measure from the output of [print] in the console, 
i.e. everything after "print: list "):

* Up to 4069 (sic!) characters, everything is fine. [openpanel] prints 
all filenames.
* At 4070, [openpanel] does not [print] anything.
* Above 4070, I get an error message with just the part of the filename 
exceeding 4070 characters, like "aaaaa: no such object".
* For yet larger values, I get an error message "float: no such object". 
(Didn't yet bisect the concrete value, 4260 sure triggers it.) Are the 
error messages length-limited as well? :-)

> I'd suggest to open a ticket on GitHub!

Remmy: I can help with that if you like.


> 
> 
> Christof
> 
> 
> On 11.01.2024 15:20, Remmy Canedo wrote:
>> Hello,
>> 
>> I'm trying to open 189 files with
>> 
>> [bang(
>> |
>> [openpanel 2]
>> 
>> file names are 1.wav, 2.wav, 3.wav... 189.wav with different sizes 
>> from 48,2 to 343,5 KiB
>> 
>> when I use short paths, like home/user/Music/test_samples I'm able to 
>> open 112 files
>> with long paths, for ex: 
>> home/user/FOLDER_1/Folder_002/Folder_3/folder_4/folder_5/test_samples 
>> I can only open 53 files max.
>> more than that, it gives me an error in console:
>> av: no such object
>> 
>> If anyone can explain why this happens and how to overcome these 
>> limits I would be very grateful.
>> 
>> thanks in advance!
>> remmy
>> 
>> Pd version 0.52.1
>> System:
>> Kernel: 5.15.0-91-lowlatency x86_64 bits: 64 compiler: gcc v: 11.4.0 
>> Desktop: Xfce 4.18.1
>> tk: Gtk 3.24.33 wm: xfwm dm: LightDM Distro: Linux Mint 21.2 Victoria 
>> base: Ubuntu 22.04 jammy
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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