diff options
| author | Gary E. Miller <gem@rellim.com> | 2015-02-02 18:27:02 -0800 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2015-02-02 18:27:02 -0800 |
| commit | 56b101e5b96851dba5240478c79bf8e892f424c9 (patch) | |
| tree | 72979d4c5c5652af8639c2896a8be2c7578c96c9 | |
| parent | 4e08dfa2ee065912fa64c3fea606a666d5813cde (diff) | |
| download | gpsd-56b101e5b96851dba5240478c79bf8e892f424c9.tar.gz | |
Add debugging for lat_fixtime_real getting clobbered.
| -rw-r--r-- | ppsthread.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/ppsthread.c b/ppsthread.c index 1b3e525b..318a23d5 100644 --- a/ppsthread.c +++ b/ppsthread.c @@ -325,6 +325,7 @@ static /*@null@*/ void *gpsd_ppsmonitor(void *arg) session->gpsdata.dev.path, errno, strerror(errno)); break; } + /* start of time critical section */ gpsd_report(&session->context->errout, LOG_PROG, "PPS ioctl(TIOCMIWAIT) on %s succeeded\n", session->gpsdata.dev.path); @@ -353,7 +354,7 @@ static /*@null@*/ void *gpsd_ppsmonitor(void *arg) TVTOTS( &clock_ts, &clock_tv); #endif /* HAVE_CLOCK_GETTIME */ /*@+noeffect@*/ - + /* got the edge, got the time just after the edge, now quickly * get the edge state */ /*@ +ignoresigns */ @@ -364,6 +365,15 @@ static /*@null@*/ void *gpsd_ppsmonitor(void *arg) break; } /*@ -ignoresigns */ + /* end of time critical section */ + + if ( isnan( last_fixtime_real ) ) { + gpsd_report(&session->context->errout, LOG_ERROR, + "PPS last_fixtime_real is NAN\n"); + /* this should never happen, but it does. */ + last_fixtime_real = 0.0; + } + /* mask for monitored lines */ state &= PPS_LINE_TIOC; @@ -602,6 +612,8 @@ static /*@null@*/ void *gpsd_ppsmonitor(void *arg) #if defined(HAVE_SYS_TIMEPPS_H) if ( 0 <= session->kernelpps_handle && ok_kpps) { /* use KPPS time */ + gpsd_report(&session->context->errout, LOG_RAW, + "KPPS using edge %d", edge_kpps ); /* pick the right edge */ if ( edge_kpps ) { clock_ts = pi.assert_timestamp; /* structure copy */ |