diff options
Diffstat (limited to 'gpsd.h-tail')
| -rw-r--r-- | gpsd.h-tail | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/gpsd.h-tail b/gpsd.h-tail index fe10c7ca..34bfe71e 100644 --- a/gpsd.h-tail +++ b/gpsd.h-tail @@ -500,42 +500,43 @@ struct gps_device_t { int fixcnt; /* count of fixes from this device */ struct gps_fix_t newdata; /* where drivers put their data */ struct gps_fix_t oldfix; /* previous fix for error modeling */ - /* - * The rest of this structure is driver-specific private storage. - * It used to be a union, but that turned out to be unsafe. Dual-mode - * devices like SiRFs and u-bloxes need to not step on the old mode's - * storage when they transition. - */ - struct { #ifdef NMEA_ENABLE - struct { - int part, await; /* for tracking GSV parts */ - struct tm date; /* date part of last sentence time */ - double subseconds; /* subsec part of last sentence time */ - char *field[NMEA_MAX]; - unsigned char fieldcopy[NMEA_MAX+1]; - /* detect receivers that ship GGA with non-advancing timestamp */ - bool latch_mode; - char last_gga_timestamp[16]; - /* - * State for the cycle-tracking machinery. - * The reason these timestamps are separate from the - * general sentence timestamps is that we can - * use the minutes and seconds part of a sentence - * with an incomplete timestamp (like GGA) for - * end-cycle recognition, even if we don't have a previous - * RMC or ZDA that lets us get full time from it. - */ - timestamp_t this_frac_time, last_frac_time; - bool latch_frac_time; - unsigned int lasttag; - unsigned int cycle_enders; - bool cycle_continue; + struct { + int part, await; /* for tracking GSV parts */ + struct tm date; /* date part of last sentence time */ + double subseconds; /* subsec part of last sentence time */ + char *field[NMEA_MAX]; + unsigned char fieldcopy[NMEA_MAX+1]; + /* detect receivers that ship GGA with non-advancing timestamp */ + bool latch_mode; + char last_gga_timestamp[16]; + /* + * State for the cycle-tracking machinery. + * The reason these timestamps are separate from the + * general sentence timestamps is that we can + * use the minutes and seconds part of a sentence + * with an incomplete timestamp (like GGA) for + * end-cycle recognition, even if we don't have a previous + * RMC or ZDA that lets us get full time from it. + */ + timestamp_t this_frac_time, last_frac_time; + bool latch_frac_time; + unsigned int lasttag; + unsigned int cycle_enders; + bool cycle_continue; #ifdef GPSCLOCK_ENABLE - bool ignore_trailing_edge; + bool ignore_trailing_edge; #endif /* GPSCLOCK_ENABLE */ - } nmea; + } nmea; #endif /* NMEA_ENABLE */ + /* + * The rest of this structure is driver-specific private storage. + * Only put a driver's scratch storage in here if it is never + * implemented on the same device that supports any mode already + * in this union; otherwise bad things might happen after a device + * mode switch. + */ + union { #ifdef GARMINTXT_ENABLE struct { struct tm date; /* date part of last sentence time */ |