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| author | Eric S. Raymond <esr@thyrsus.com> | 2013-11-05 20:21:42 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2013-11-05 20:21:42 -0500 |
| commit | 032607920d8d6f335e3bfbca1fc76e9d77dc7457 (patch) | |
| tree | 632e28102497e16d43be91ca0dbcec5a7ed5041c /libgps_shm.c | |
| parent | 6a0157a94666ae5a653bc297aedc1f6c8f1eaf3a (diff) | |
| download | gpsd-032607920d8d6f335e3bfbca1fc76e9d77dc7457.tar.gz | |
Full splint cleanup. Partial cppcheck cleanup.
Diffstat (limited to 'libgps_shm.c')
| -rw-r--r-- | libgps_shm.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/libgps_shm.c b/libgps_shm.c index f25a07e4..88b340e8 100644 --- a/libgps_shm.c +++ b/libgps_shm.c @@ -70,12 +70,11 @@ bool gps_shm_waiting(const struct gps_data_t *gpsdata, int timeout) /* check to see if new data has been written */ { volatile struct shmexport_t *shared = (struct shmexport_t *)PRIVATE(gpsdata)->shmseg; - bool newdata; timestamp_t basetime = timestamp(); /* busy-waiting sucks, but there's not really an alternative */ for (;;) { - newdata = false; + bool newdata = false; barrier(); if (shared->bookend1 == shared->bookend2 && shared->bookend1 > PRIVATE(gpsdata)->tick) newdata = true; |