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rtc: pass info whether RTC is on UTC as a function parameter

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rtc_from_t() and t_from_rtc() call either gmtime or localtime depending
on the value of a global rtc_on_utc variable.

This will not be appropriate anymore when we start exporting functions
that call rtc_from_t() and t_from_rtc() for use outside of rtc_linux.c
as the rtc_on_utc variable may not have been initialized yet or at all.

Therefore make whether the RTC is on UTC a function parameter of these
functions, so the value can be propagated from the callers.
This commit is contained in:
Ahmad Fatoum
2024-07-22 13:40:59 +02:00
committed by Miroslav Lichvar
parent 13db3d6902
commit 68301238a0
1 changed files with 7 additions and 7 deletions
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14
rtc_linux.c
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@@ -297,10 +297,10 @@ slew_samples
whether the user runs his RTC on the local time zone or UTC */
static void
rtc_from_t(const time_t *t, struct rtc_time *rtc_raw)
rtc_from_t(const time_t *t, struct rtc_time *rtc_raw, int utc)
{
struct tm *rtc_tm;
if (rtc_on_utc) {
if (utc) {
rtc_tm = gmtime(t);
} else {
rtc_tm = localtime(t);
@@ -352,7 +352,7 @@ rtc_from_t(const time_t *t, struct rtc_time *rtc_raw)
*/
static time_t
t_from_rtc(struct rtc_time *rtc_raw)
t_from_rtc(struct rtc_time *rtc_raw, int utc)
{
struct tm rtc_tm, temp1, temp2, *tm;
long diff;
@@ -372,7 +372,7 @@ t_from_rtc(struct rtc_time *rtc_raw)
t1 = mktime(&temp1);
tm = rtc_on_utc ? gmtime(&t1) : localtime(&t1);
tm = utc ? gmtime(&t1) : localtime(&t1);
if (!tm) {
DEBUG_LOG("gmtime()/localtime() failed");
return -1;
@@ -610,7 +610,7 @@ set_rtc(time_t new_rtc_time)
struct rtc_time rtc_raw;
int status;
rtc_from_t(&new_rtc_time, &rtc_raw);
rtc_from_t(&new_rtc_time, &rtc_raw, rtc_on_utc);
status = ioctl(fd, RTC_SET_TIME, &rtc_raw);
if (status < 0) {
@@ -805,7 +805,7 @@ read_from_device(int fd_, int event, void *any)
}
/* Convert RTC time into a struct timespec */
rtc_t = t_from_rtc(&rtc_raw);
rtc_t = t_from_rtc(&rtc_raw, rtc_on_utc);
if (rtc_t == (time_t)(-1)) {
error = 1;
@@ -955,7 +955,7 @@ RTC_Linux_TimePreInit(time_t driftfile_time)
if (status >= 0) {
/* Convert to seconds since 1970 */
rtc_t = t_from_rtc(&rtc_raw);
rtc_t = t_from_rtc(&rtc_raw, rtc_on_utc);
if (rtc_t != (time_t)(-1)) {