On Thu, 18 Jul 2019 23:07:08 +0100 andy pugh <bodge...@gmail.com> wrote:
> On Thu, 18 Jul 2019 at 22:01, Nicklas Karlsson <nicklas.karlsso...@gmail.com> > wrote: > > > It seems by no suprise writing real time to data to file within real time > > task have a negative impact on likelihood of real time delay. > > > > With RTAI and kernel modules I don't think that is is even possible. > > I tried non blocking fcntl(...) function and O_NONBLOCK flag without > > success. Adding some kind of buffer in for example shared memory between > > written by real time task and let another lower priority task write is a > > solution > > > Take a look at how streamer and hal_streamer do exactly this. I also found there already exist a real time implementation in "rt_fifo.h" but unfortunately I do not find among the include files on my hard drive so probably it's not part of the versin I have or I might be looking at the wrong place. Nicklas Karlsson _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
