mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 14:57:35 +00:00
LibC: Add timegm()
timegm() is like mktime() in that it converts a struct tm to a timestamp, but it treats the struct tm as UTC instead of as local time. timegm() is nonstandard, but availabe in both Linux and BSD, and it's a useful function to have.
This commit is contained in:
parent
cf8ce839da
commit
459e4ace93
2 changed files with 13 additions and 2 deletions
|
@ -93,7 +93,7 @@ static void time_to_tm(struct tm* tm, time_t t)
|
|||
tm->tm_mday += days;
|
||||
}
|
||||
|
||||
time_t mktime(struct tm* tm)
|
||||
static time_t tm_to_time(struct tm* tm, long timezone_adjust)
|
||||
{
|
||||
int days = 0;
|
||||
int seconds = tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
|
||||
|
@ -107,7 +107,12 @@ time_t mktime(struct tm* tm)
|
|||
++tm->tm_yday;
|
||||
|
||||
days += tm->tm_yday;
|
||||
return days * __seconds_per_day + seconds + timezone;
|
||||
return days * __seconds_per_day + seconds + timezone_adjust;
|
||||
}
|
||||
|
||||
time_t mktime(struct tm* tm)
|
||||
{
|
||||
return tm_to_time(tm, timezone);
|
||||
}
|
||||
|
||||
struct tm* localtime(const time_t* t)
|
||||
|
@ -124,6 +129,11 @@ struct tm* localtime_r(const time_t* t, struct tm* tm)
|
|||
return tm;
|
||||
}
|
||||
|
||||
time_t timegm(struct tm* tm)
|
||||
{
|
||||
return tm_to_time(tm, 0);
|
||||
}
|
||||
|
||||
struct tm* gmtime(const time_t* t)
|
||||
{
|
||||
static struct tm tm_buf;
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue