[ntp:questions] new driver development

Rob nomail at example.com
Fri Mar 18 15:30:13 UTC 2011

Dave Hart <davehart at gmail.com> wrote:
> On Fri, Mar 18, 2011 at 09:16 UTC, Martin Burnicki
> <martin.burnicki at meinberg.de> wrote:
>> I'm not familiar with POSIX SHM details, but from the point of view from SHM
>> feeders (like gpsd) it would also be easier to say "you can use this with
>> ntpd's driver 41" than to say "you can use this with driver 28, but you
>> need to fudge flag1 to 1".
> It is not clear to me the two drivers need to be side-by-side
> differing implementations in one driver.  I suspect "server
> 127.127.28.x mode 2" can reasonably mean "using POSIX named shared
> memory of the form /ntpshm/[unit]" and either the existing shm
> structure, or a variant with fixed-sized elements.

How is the ntp.conf file parsed and the driver initialized in ntpd?
Is the value of a fudge flag even available at the moment a driver
is initialized?

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