fsfw/globalfunctions/timevalOperations.cpp

100 lines
2.7 KiB
C++

#include "timevalOperations.h"
timeval& operator+=(timeval& lhs, const timeval& rhs) {
int64_t sum = lhs.tv_sec * 1000000. + lhs.tv_usec;
sum += rhs.tv_sec * 1000000. + rhs.tv_usec;
lhs.tv_sec = sum / 1000000;
lhs.tv_usec = sum - lhs.tv_sec * 1000000;
return lhs;
}
timeval operator+(timeval lhs, const timeval& rhs) {
lhs += rhs;
return lhs;
}
timeval& operator-=(timeval& lhs, const timeval& rhs) {
int64_t sum = lhs.tv_sec * 1000000. + lhs.tv_usec;
sum -= rhs.tv_sec * 1000000. + rhs.tv_usec;
lhs.tv_sec = sum / 1000000;
lhs.tv_usec = sum - lhs.tv_sec * 1000000;
return lhs;
}
timeval operator-(timeval lhs, const timeval& rhs) {
lhs -= rhs;
return lhs;
}
double operator/(const timeval& lhs, const timeval& rhs) {
double lhs64 = lhs.tv_sec * 1000000. + lhs.tv_usec;
double rhs64 = rhs.tv_sec * 1000000. + rhs.tv_usec;
return lhs64 / rhs64;
}
timeval& operator/=(timeval& lhs, double scalar) {
int64_t product = lhs.tv_sec * 1000000. + lhs.tv_usec;
product /= scalar;
lhs.tv_sec = product / 1000000;
lhs.tv_usec = product - lhs.tv_sec * 1000000;
return lhs;
}
timeval operator/(timeval lhs, double scalar) {
lhs /= scalar;
return lhs;
}
timeval& operator*=(timeval& lhs, double scalar) {
int64_t product = lhs.tv_sec * 1000000. + lhs.tv_usec;
product *= scalar;
lhs.tv_sec = product / 1000000;
lhs.tv_usec = product - lhs.tv_sec * 1000000;
return lhs;
}
timeval operator*(timeval lhs, double scalar) {
lhs *= scalar;
return lhs;
}
timeval operator*(double scalar, timeval rhs) {
rhs *= scalar;
return rhs;
}
bool operator==(const timeval& lhs, const timeval& rhs) {
int64_t lhs64 = lhs.tv_sec * 1000000. + lhs.tv_usec;
int64_t rhs64 = rhs.tv_sec * 1000000. + rhs.tv_usec;
return lhs64 == rhs64;
}
bool operator!=(const timeval& lhs, const timeval& rhs) {
return !operator==(lhs, rhs);
}
bool operator<(const timeval& lhs, const timeval& rhs) {
int64_t lhs64 = lhs.tv_sec * 1000000. + lhs.tv_usec;
int64_t rhs64 = rhs.tv_sec * 1000000. + rhs.tv_usec;
return lhs64 < rhs64;
}
bool operator>(const timeval& lhs, const timeval& rhs) {
return operator<(rhs, lhs);
}
bool operator<=(const timeval& lhs, const timeval& rhs) {
return !operator>(lhs, rhs);
}
bool operator>=(const timeval& lhs, const timeval& rhs) {
return !operator<(lhs, rhs);
}
double timevalOperations::toDouble(const timeval timeval) {
double result = timeval.tv_sec * 1000000. + timeval.tv_usec;
return result / 1000000.;
}
timeval timevalOperations::toTimeval(const double seconds) {
timeval tval;
tval.tv_sec = seconds;
tval.tv_usec = seconds *(double) 1e6 - (tval.tv_sec *1e6);
return tval;
}