diff options
Diffstat (limited to 'src/shared')
| -rw-r--r-- | src/shared/clock-util.c | 15 | ||||
| -rw-r--r-- | src/shared/clock-util.h | 2 |
2 files changed, 9 insertions, 8 deletions
diff --git a/src/shared/clock-util.c b/src/shared/clock-util.c index e66db63ba0..fc49393c72 100644 --- a/src/shared/clock-util.c +++ b/src/shared/clock-util.c @@ -124,9 +124,10 @@ int clock_set_timezone(int *min) { tz.tz_dsttime = 0; /* DST_NONE*/ /* - * If the hardware clock does not run in UTC, but in local time: - * The very first time we set the kernel's timezone, it will warp - * the clock so that it runs in UTC instead of local time. + * If the RTC does not run in UTC but in local time, the very first + * call to settimeofday() will set the kernel's timezone and will warp the + * system clock, so that it runs in UTC instead of the local time we + * have read from the RTC. */ if (settimeofday(tv_null, &tz) < 0) return -errno; @@ -135,7 +136,7 @@ int clock_set_timezone(int *min) { return 0; } -int clock_reset_timezone(void) { +int clock_reset_timewarp(void) { const struct timeval *tv_null = NULL; struct timezone tz; @@ -143,9 +144,9 @@ int clock_reset_timezone(void) { tz.tz_dsttime = 0; /* DST_NONE*/ /* - * The very first time we set the kernel's timezone, it will warp - * the clock. Do a dummy call here, so the time warping is sealed - * and we set only the timezone with the next call. + * The very first call to settimeofday() does time warp magic. Do a + * dummy call here, so the time warping is sealed and all later calls + * behave as expected. */ if (settimeofday(tv_null, &tz) < 0) return -errno; diff --git a/src/shared/clock-util.h b/src/shared/clock-util.h index 4deeac7736..7ed371a958 100644 --- a/src/shared/clock-util.h +++ b/src/shared/clock-util.h @@ -23,6 +23,6 @@ int clock_is_localtime(void); int clock_set_timezone(int *min); -int clock_reset_timezone(void); +int clock_reset_timewarp(void); int clock_get_hwclock(struct tm *tm); int clock_set_hwclock(const struct tm *tm); |