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AK: Add Time::from_ticks()

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This helper allows Time to be constructed from a tick count and a ticks
per second value.
This commit is contained in:
Lucas CHOLLET 2022-01-31 19:02:03 +01:00 • committed by Andreas Kling
parent 5238e38886
commit 39bfc48ea7
2 changed files with 10 additions and 0 deletions
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9
AK/Time.cpp
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@ -38,6 +38,15 @@ unsigned day_of_week(int year, unsigned month, int day)
return (year + year / 4 - year / 100 + year / 400 + seek_table[month - 1] + day) % 7;
}
Time Time::from_ticks(clock_t ticks, time_t ticks_per_second)
{
auto secs = ticks % ticks_per_second;
i32 nsecs = 1'000'000'000 * (ticks - (ticks_per_second * secs)) / ticks_per_second;
i32 extra_secs = sane_mod(nsecs, 1'000'000'000);
return Time::from_half_sanitized(secs, extra_secs, nsecs);
}
Time Time::from_timespec(const struct timespec& ts)
{
i32 nsecs = ts.tv_nsec;