Pause of Fractional Seconds in Generated Code
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Michael on 1 Feb 2023
Commented: Matthew DiBello on 6 Feb 2023
The help file for pause.m says the following in the notes about Code Generation:
The generated code truncates pause delay values to uint32 range during run-time execution.
I believe that means that fractional seconds less than 0.5 s (i.e. pause(0.1) ) will round to zero and no pause will happen in the generated code. Can someone confirm this?
If I am correct about this, is there a work around to do fractional exectuation pauses in generated code?
Matthew DiBello on 3 Feb 2023
Edited: Matthew DiBello on 6 Feb 2023
Your understanding is incorrect. In code generation, pause supports fractional values. The line from the documentation that you are referring to indicates that the maximum sleep duration is the max value of uint32.
Matthew DiBello on 6 Feb 2023
@Michael - I will follow up with our Documentation team to improve the help file for pause.
The code generation implementation of pause uses nanosleep on POSIX systems and Sleep on Windows systems. If you want to see exactly how it's implemented, you can run non-MEX code generation and then use packNGo to get all the source in one place.
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