diff options
Diffstat (limited to 'gpsd.c')
| -rw-r--r-- | gpsd.c | 18 |
1 files changed, 13 insertions, 5 deletions
@@ -1778,6 +1778,7 @@ static void gpsd_terminate(struct gps_context_t *context CONDITIONALLY_UNUSED) #endif /* PPS_ENABLE */ } +#ifdef BUZZKILL_ENABLE static void adaptive_delay(void) /* sleep a calculated time only if we have a buggy select() */ { @@ -1826,6 +1827,7 @@ static void adaptive_delay(void) } return; } +#endif /* BUZZKILL_ENABLE */ /*@ -mustfreefresh @*/ int main(int argc, char *argv[]) @@ -2206,14 +2208,20 @@ int main(int argc, char *argv[]) while (0 == signalled) { fd_set efds; +#ifdef BUZZKILL_ENABLE /* - * Adaptive delay to prevent buzzing if the tty layer returns data - * one character at a time and too fast. This pushes CPU usage up and - * eats power. This has been directly observed as a problem on the - * Raspberry Pi, and is probably behind occasional reports of - * GPSD-related excessive power drain on Android phones. + * Adaptive delay to prevent buzzing if the tty layer returns + * data one character at a time and too fast. Buzzing pushes + * CPU usage up and eats power. + * + * This has been directly observed as a problem on the + * Raspberry Pi. A buzzing problem with outright defective + * select(2) implementations is probably behind occasional + * reports of GPSD-related excessive power drain on Android + * phones. */ (void) adaptive_delay(); +#endif /* BUZZKILL_ENABLE */ switch(gpsd_await_data(&rfds, &efds, maxfd, &all_fds, &context.errout)) { |