Kenneth Jacker ([EMAIL PROTECTED]) wrote:
> Reading the GettingStarted.txt file, I saw what appeared to be two
> different ways to cause a thread to execute periodically:
>
> o pthread_setperiod_np()
This one is obsolete.
>
> o pthread_make_periodic_np()
>
>
> Questions:
>
> o Why two period-setting functions? What is the advantage of
> one over the other?
You should only use pthread_make_periodic_np.
>
> o What are the units for the "period" in pthread_make_periodic_np?
> Nanoseconds? This doesn't appear to be documented.
nanoseconds. Thanks for the tip, I'll fix the manpage.
>
> o Most of the examples only create the thread in
> init_module, and specify attributes and scheduling params
> in the function associated with the thread. Are there
> any problems/consequences in doing the "thread initialization"
> stuff in init_module?
Not unless it's SMP, and you have the thread to run on another CPU.
Not all thread operations are SMP-safe in RTL.
Michael.
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