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AK: Add timespec_add and timespec_sub

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Nico Weber 2020-06-21 13:41:47 -04:00 committed by Andreas Kling
parent 9e18005c64
commit 9256757b59
1 changed files with 28 additions and 4 deletions
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32
AK/Time.h
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@ -35,7 +35,7 @@ inline void timeval_sub(const TimevalType& a, const TimevalType& b, TimevalType&
result.tv_usec = a.tv_usec - b.tv_usec;
if (result.tv_usec < 0) {
--result.tv_sec;
result.tv_usec += 1000000;
result.tv_usec += 1'000'000;
}
}
@ -44,9 +44,31 @@ inline void timeval_add(const TimevalType& a, const TimevalType& b, TimevalType&
{
result.tv_sec = a.tv_sec + b.tv_sec;
result.tv_usec = a.tv_usec + b.tv_usec;
if (result.tv_usec > 1000000) {
if (result.tv_usec > 1'000'000) {
++result.tv_sec;
result.tv_usec -= 1000000;
result.tv_usec -= 1'000'000;
}
}
template<typename TimespecType>
inline void timespec_sub(const TimespecType& a, const TimespecType& b, TimespecType& result)
{
result.tv_sec = a.tv_sec - b.tv_sec;
result.tv_nsec = a.tv_nsec - b.tv_nsec;
if (result.tv_nsec < 0) {
--result.tv_sec;
result.tv_nsec += 1'000'000'000;
}
}
template<typename TimespecType>
inline void timespec_add(const TimespecType& a, const TimespecType& b, TimespecType& result)
{
result.tv_sec = a.tv_sec + b.tv_sec;
result.tv_nsec = a.tv_nsec + b.tv_nsec;
if (result.tv_nsec > 1000'000'000) {
++result.tv_sec;
result.tv_nsec -= 1000'000'000;
}
}
@ -66,7 +88,9 @@ inline void timespec_to_timeval(const TimespecType& ts, TimevalType& tv)
}
using AK::timespec_add;
using AK::timespec_sub;
using AK::timespec_to_timeval;
using AK::timeval_add;
using AK::timeval_sub;
using AK::timeval_to_timespec;
using AK::timespec_to_timeval;