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hwclock: make it report system/rtc clock difference

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function                                             old     new   delta
rtc_tm2time                                            -      89     +89
read_rtc                                              23      86     +63
rtc_read_tm                                            -      49     +49
hwclock_main                                         428     466     +38
rtcwake_main                                         453     477     +24
rtc_read_time                                        142       -    -142
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/0 up/down: 263/-142)          Total: 121 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-01-06 22:43:39 +01:00
parent 695fa51c80
commit 5e3b14069e
4 changed files with 53 additions and 24 deletions
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7
util-linux/rtcwake.c
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@ -160,7 +160,12 @@ int rtcwake_main(int argc UNUSED_PARAM, char **argv)
/* relative or absolute alarm time, normalized to time_t */
sys_time = time(NULL);
rtc_time = rtc_read_time(fd, utc);
{
struct tm tm;
rtc_read_tm(&tm, fd);
rtc_time = rtc_tm2time(&tm, utc);
}
if (alarm_time) {
if (alarm_time < sys_time)