I am experiencing an unexpected switch to secondary mode in a
rt_timer_tsc2ns call from userspace.
The following code give a switch:
SRTIME timeStamp;
timeStamp = rt_timer_tsc2ns(rt_timer_tsc());
while((rt_timer_tsc2ns(rt_timer_tsc()) - timeStamp) < (usecs*1000)) {}
while the following code does not:
RTIME timeStamp;
timeStamp = rt_timer_tsc();
while((rt_timer_tsc() - timeStamp) < (usecs*1000)) {}
(I know that the second example causes a longer timeout, but this was to
show the testcase).
When splitting up the 2nd line in the first example I see that the
rt_timer_tsc() call does not cause a switch, but the rt_timer_tsc2ns
does. What am I doing wrong here?
I am using Xenomai-2.3.2.
Kind regards,
Johan Borkhuis
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