"cheap", RT-safe way of detecting if a thread is Xenomai or Linux

Jan Kiszka jan.kiszka at web.de
Sun Jan 13 04:30:51 CET 2019

On 13.01.19 10:33, Giulio Moro via Xenomai wrote:
> Hi all,
> is there a "cheap", RT-safe call that can be made in order to find out if the current thread is a Xenomai thread or a Linux thread? Also, to detect whether the Xenomai thread is in primary or secondary mode?
> It seems that cobalt_thread_mode() gives some (all?) of these details. Is it RT-safe? How much overhead does it incur? Is it the recommended way?

What is the use case of this query? Debugging purposes? We expose APIs for the 
latter (e.g. cobalt_assert_nrt(), typically only called by internal wrappers) 
but we are intentionally not proposing them for production purposes.


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