On 10/16/12 13:40, Chuck Swiger wrote:
Hi--
On Oct 15, 2012, at 10:51 AM, Felipe Blauth wrote:
Hello.
I'd like to build a custom version of ntpd with a single change: instead
of synchronizing with operating system clock, it would synchronize with a
custom clock.
OK; ntpd is designed to do exactly that via refclock drivers.
ntpd doesn't normally sync to the OS clock, unless you insist by using the
local clock driver (which isn't recommended).
I can mimic operating system calls (like gettimeofday and settimeofday).
That's OK-- you won't need to.
I'm just starting out and would appreciate some directions on doing this.
If someone could point me a file or a function, it would be of great help.
http://www.eecis.udel.edu/~mills/ntp/html/refclock.html
http://www.eecis.udel.edu/~mills/ntp/html/howto.html
Regards,
I think the original poster is asking to do something a little bit
different than the usual. If I am reading it right, he is not asking how
to get ntpd to read a custom clock as a source of time (which as noted
is what a refclock is for). I think he is asking how to get ntpd to
*set* a custom clock, treating it as it would the system clock, so as to
sync the custom clock with the upstream NTP server time.
Brian Utterback
--
blu
Always code as if the guy who ends up maintaining your code will be a
violent psychopath who knows where you live. - Martin Golding
-----------------------------------------------------------------------|
Brian Utterback - Solaris RPE, Oracle Corporation.
Ph:603-262-3916, Em:brian.utterb...@oracle.com
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