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AK: Make Time more usable

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This commit is contained in:
Ben Wiederhake 2021-02-27 23:54:10 +01:00 • committed by Andreas Kling
parent e510c41fd2
commit 340813e087
3 changed files with 53 additions and 1 deletions
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29
AK/Time.cpp
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@ -72,6 +72,10 @@ 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_nanoseconds(i32 nanoseconds)
{
return Time::from_timespec({ 0, nanoseconds });
};
ALWAYS_INLINE static i32 sane_mod(i32& numerator, i32 denominator)
{
VERIFY(2 <= denominator && denominator <= 1'000'000'000);
@ -102,6 +106,14 @@ Time Time::from_timeval(const struct timeval& tv)
return Time::from_half_sanitized(tv.tv_sec, extra_secs, usecs * 1'000);
}
i64 Time::to_truncated_seconds() const
{
VERIFY(m_nanoseconds < 1'000'000'000);
if (m_seconds < 0 && m_nanoseconds)
return m_seconds + 1;
else
return m_seconds;
}
timespec Time::to_timespec() const
{
VERIFY(m_nanoseconds < 1'000'000'000);
@ -172,6 +184,23 @@ Time Time::operator-(const Time& other) const
return Time { (m_seconds + 0x4000'0000'0000'0000) + 0x4000'0000'0000'0000, m_nanoseconds };
}
bool Time::operator<(const Time& other) const
{
return m_seconds < other.m_seconds || (m_seconds == other.m_seconds && m_nanoseconds < other.m_nanoseconds);
}
bool Time::operator<=(const Time& other) const
{
return m_seconds < other.m_seconds || (m_seconds == other.m_seconds && m_nanoseconds <= other.m_nanoseconds);
}
bool Time::operator>(const Time& other) const
{
return m_seconds > other.m_seconds || (m_seconds == other.m_seconds && m_nanoseconds > other.m_nanoseconds);
}
bool Time::operator>=(const Time& other) const
{
return m_seconds > other.m_seconds || (m_seconds == other.m_seconds && m_nanoseconds >= other.m_nanoseconds);
}
Time Time::from_half_sanitized(i64 seconds, i32 extra_seconds, u32 nanoseconds)
{
VERIFY(nanoseconds < 1'000'000'000);