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/* timebase.h -- constants that will require patching over time */
/*
* The current (fixed) leap-second correction, and the future Unix
* time after which to start hunting leap-second corrections from GPS
* subframe data if the GPS doesn't supply them any more readily.
* Currently 1 Jan 2006, as the current fixed correction is expected
* to be good until at least then. Deferring the check is a hack to
* speed up fix acquisition -- subframe data is bulky enough to
* substantially increase latency. To update LEAP_SECONDS and
* START_SUBFRAME, see the IERS leap-second bulletin page at:
* <http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletins.html>
*/
#define LEAP_SECONDS 13
#define START_SUBFRAME 1136091600
/*
* This is used only when an NMEA device issues a two-digit year in a GPRMC
* and there has been no previous ZDA to set the year. We used to
* query the system clock for this, but there's no good way to cope
* with the mess if the system clock has been zeroed.
*/
#define CENTURY_BASE 2000
/* timebase.h ends here */
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