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| author | Eric S. Raymond <esr@thyrsus.com> | 2015-03-07 12:28:41 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2015-03-07 12:28:41 -0500 |
| commit | 95c343b2b266c17defd8836c8b515848786b755d (patch) | |
| tree | 171c5506fb42c53e11a88474ae903a086503729b /ppsthread.h | |
| parent | 2b100a52bfc1b257bfefe2e375b88b6eaef50699 (diff) | |
| download | gpsd-95c343b2b266c17defd8836c8b515848786b755d.tar.gz | |
ppsthread.c gets its own header. Another step towards ntplib.
All regression tests pass.
Diffstat (limited to 'ppsthread.h')
| -rw-r--r-- | ppsthread.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/ppsthread.h b/ppsthread.h new file mode 100644 index 00000000..2a37c052 --- /dev/null +++ b/ppsthread.h @@ -0,0 +1,45 @@ +/* + * This file is Copyright (c) 2015 by the GPSD project + * BSD terms apply: see the file COPYING in the distribution root for details. + */ + +#ifndef PPSTHREAD_H +#define PPSTHREAD_H + +/* use RFC 2782 PPS API */ +/* this needs linux >= 2.6.34 and + * CONFIG_PPS=y + * CONFIG_PPS_DEBUG=y [optional to kernel log pulses] + * CONFIG_PPS_CLIENT_LDISC=y + */ +#ifndef S_SPLINT_S +#if defined(HAVE_SYS_TIMEPPS_H) +// include unistd.h here as it is missing on older pps-tools releases. +// 'close' is not defined otherwise. +#include <unistd.h> +#include <sys/time.h> +#include <sys/timepps.h> +#endif +#endif /* S_SPLINT_S */ + +struct pps_thread_t { + timestamp_t fixin_real; + struct timespec fixin_clock; /* system clock time when last fix received */ +#if defined(HAVE_SYS_TIMEPPS_H) + pps_handle_t kernelpps_handle; +#endif /* defined(HAVE_SYS_TIMEPPS_H) */ + int chronyfd; /* for talking to chrony */ + /*@null@*/ char *(*report_hook)(struct gps_device_t *, + struct timedelta_t *); + /*@null@*/ void (*wrap_hook)(struct gps_device_t *); + struct timedelta_t ppsout_last; + int ppsout_count; +}; + +extern void pps_thread_activate(struct gps_device_t *); +extern void pps_thread_deactivate(struct gps_device_t *); +extern void pps_thread_stash_fixtime(struct gps_device_t *, + timestamp_t, struct timespec); +extern int pps_thread_lastpps(struct gps_device_t *, struct timedelta_t *); + +#endif /* PPSTHREAD_H */ |