ni / ni/nidaqmx-python

Information on callback execution

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Dominant language
Python
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Description

Hi,
I am building an application including real-time streaming of data from the DAQ. I would need some information on the execution models of callbacks such as those provided to functions register_every_n_samples_acquired_into_buffer_event. What happens when the task is running and this callback is executed? Is there a parallel thread launching the event and executing the callback? Is it a blocking execution?

I couldn't find anything in the documentation, but since the execution model in Python can be various (multiprocessing, asynchronous, thread-based, etc) it would be nice to have some clarification on this point.

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Research direction

Start by locating the register_every_n_samples_acquired_into_buffer_event entry point and determine how its callback executes while a task is running. Document whether execution uses a separate thread, is asynchronous or blocking, and any implications for streaming applications. Done means the callback execution model is clearly explained in the documentation.

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Assessment

Tech stack
python
Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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