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rtc: minor cleanup in RTC_Linux_TimePreInit()

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This commit is contained in:
Miroslav Lichvar 2014-08-18 11:58:56 +02:00
parent c6e064200d
commit 5fce101f85
1 changed files with 7 additions and 10 deletions
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17
rtc_linux.c
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@ -979,9 +979,8 @@ RTC_Linux_TimePreInit(void)
int fd, status;
struct rtc_time rtc_raw, rtc_raw_retry;
struct tm rtc_tm;
time_t rtc_t, estimated_correct_rtc_t;
long interval;
double accumulated_error = 0.0;
time_t rtc_t;
double accumulated_error;
struct timeval new_sys_time, old_sys_time;
coefs_file_name = CNF_GetRtcFile();
@ -1021,16 +1020,14 @@ RTC_Linux_TimePreInit(void)
/* Work out approximatation to correct time (to about the
nearest second) */
if (valid_coefs_from_file) {
interval = rtc_t - file_ref_time;
accumulated_error = file_ref_offset + (double)(interval) * 1.0e-6 * file_rate_ppm;
/* Correct time */
estimated_correct_rtc_t = rtc_t - (long)(0.5 + accumulated_error);
accumulated_error = file_ref_offset +
(rtc_t - file_ref_time) * 1.0e-6 * file_rate_ppm;
} else {
estimated_correct_rtc_t = rtc_t - (long)(0.5 + accumulated_error);
accumulated_error = 0.0;
}
new_sys_time.tv_sec = estimated_correct_rtc_t;
/* Correct time */
new_sys_time.tv_sec = rtc_t - (time_t)(0.5 + accumulated_error);
new_sys_time.tv_usec = 0;
/* Set system time only if the step is larger than 1 second */