jens.koehhler at web.de
Thu Jun 1 09:15:53 CEST 2006
Thank you for the example. For what exactly do I need the double buffering, what could happen? I guess when RTAI is running, linux kernel functions are stopped.
> Jens Köhler wrote:
> > Hi,
> > I have a linux pc where the time is updated by a ntp server. How can I get the time in a rtai module? I need it for a time stamp(milli seconds).
> > In a mail from 2003 I found the function gettimeofday_rt mentioned. Is it avaible?
> Just the first thing that comes to my mind.
> Use Linux kernel timer function that repeats itself calling gettimeofday
> at each execution making it available in a global module structure.
> Adopt a double buffering scheme for the structure, to avoid interfering
> while it's being updated.
> I think that you can use do_gettimeofday directly.
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