Re: [Xenomai-help] Porting / API Questions

[Jeff Webb <jeff.webb@domain.hid>]

Jan Kiszka wrote:
>> In this simulation, we use the rtlinux POSIX-like API for threads,
>> timing, and writing-to / reading-from real-time FIFOs.  It looks like
>> the xeno_posix API will allow me to port the thread and timing code with
>> very few (if any) changes.  There does not appear to be a kernel-space
>> version of read and write for use on xenomai pipes.  Am I missing
>> something?
> 
> For what side, RT or non-RT? Or what service (function name) is missing
> precisely?

RT-Linux has a mostly POSIX interface to rt-fifos.  You must create/delete them using the non-standard rtf_create/rtf_destroy, but after that, you can open, close, read, and write them using a file descriptor.  I was wondering if this mapping exists for the real-time Xenomai POSIX API.  I am specifically asking about kernel-space right now, but I would also like to know if this sort of thing is supported from user-space real-time as well.

-Jeff