Re: [gpsd-dev] GPSD's assumptions about time

[Hal Murray]

address@hidden said:
> 1. Compile the GPS week of the build into the build
> The obvious place tp put this is in timebase.h. Not too expensive; will
> typically cause extra work once per seven days.  The benefit is that we can
> compare received week to the compiled-in week and if the latter is less know
> that a rollover has occurred. 

You want similar logic to work with NMEA devices that don't tell you anything 
about weeks.

Does gpsd normalize everything to some internal format and/or will that sort 
of check have to be made in two places?

There was some discussion in the ntp lists a month or two ago about a NMEA 
device that was broken and going to need this logic.  One of them might make 
a handy test case.  I'll try to track down the details if you are interested.


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