[ntp:questions] Start of new GPS 1024 week epoch

David Taylor david-taylor at blueyonder.co.uk.invalid
Tue Aug 20 14:49:26 UTC 2013

On 20/08/2013 13:25, Martin Burnicki wrote:
> There were 2 fields in the SHM segment which were previously unused and
> are now used to take the nanoseconds from the refclock and from the
> system time.
> Thus programs like gpsd can now write the nanoseconds in addition to the
> microseconds. If there's an old version of ntpd running then it just
> evaluates the microseconds, but new versions (ntp-dev for now) check if
> the nanoseconds fields are filled up and use them if this is the case.
> Thus an old ntpd works with a new gpsd, and a new ntpd works with an old
> gpsd. See:
> Bug 1232 - nanosecond support in SHM driver
> https://bugs.ntp.org/show_bug.cgi?id=1232
> Martin

Is SHM supported on Windows?  I know that it /could/ be as the 
mechanisms exist within the OS, but /is/ it?
Web: http://www.satsignal.eu

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