Hi I discovered a limit on the length of sysex messages for the SWI-Prolog-janus-mido interface. My prolog program can receive messages with a length up to 1024 bytes, but not larger. I read in the manual that SWI Prolog running on 64-bit machines supports ‘virtually unlimited’ atom sizes. Since I…

AFAIK, Janus imposes no limits except for memory. If it does, it should be fairly easy to construct a counter example, preferably without the whole mido stuff :slight_smile: If you find such an example, I’m happy to stand corrected and fix it.

Since I’m using Janus exclusively for accessing the mido package, I have no other examples. I’m sorry. Here is a minimal script to receive MIDI messages using mido (written in Python): open_in_port(InPortName, InPort) :- py_call(mido:open_input(InPortName), InPort), format('InPort opened: ~w~n',…

[image] Remifa: Since I’m using Janus exclusively for accessing the mido package, I have no other examples. I’m sorry. I’m sorry, but I changed compute infrastructure in the meanwhile, so I’d have to setup MIDI again and re-familiarize with it. If there is a length limit in the interface, …

I can understand it takes time to set up a MIDI test environment again. I don’t get any error messages when sending a larger than 1kB message. Nothing happens. The writeln/1 statement doesn’t print anything. It isn’t a Windows issue for sure, as I’m sending around sysex dumps around since Windows …

Here are my test results for the Prolog-janus-mido-Python message size limits :- Messages up to 200kB sent from Prolog are instantly received using the Janus-mido-Python interface. A message with a length of 300kB was seemingly sent properly (I mean, no error was produced) but wasn’t received. …

[image] Remifa: Successfully installed janus-1.0.0 The current version at PyPi is 1.4.0. See janus-swi · PyPI Assuming you run a recent version of Prolog, you may have some version mixup.

Janus message size limit?

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Janus message size limit?

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