CLOCK_SOFTTIME

I was experimenting the various clock sources.
I was using the clock_gettime(clocksource, …) to do my tests.
CLOCK_REALTIME and CLOCK_MONOTONIC works as expected, but CLOCK_SOFTTIME
always returns 0. Do I need to set up something to use it or it’s not
currently implemented?
Or maybe I’ve to create a timer to use it?


Wave++