108 lines
2.1 KiB
C++
108 lines
2.1 KiB
C++
#pragma once
|
|
|
|
#include <chrono>
|
|
#include <ctime>
|
|
#include <iomanip>
|
|
#include <ostream>
|
|
|
|
#include <fmt/format.h>
|
|
|
|
#include "utils/datetime/datetime_error.hpp"
|
|
#include "utils/total_ordering.hpp"
|
|
|
|
class Timestamp : public TotalOrdering<Timestamp>
|
|
{
|
|
public:
|
|
Timestamp() : Timestamp(0, 0) {}
|
|
|
|
Timestamp(std::time_t time, long nsec = 0) : unix_time(time), nsec(nsec)
|
|
{
|
|
auto result = gmtime_r(&time, &this->time);
|
|
|
|
if(result == nullptr)
|
|
throw DatetimeError("Unable to construct from {}", time);
|
|
}
|
|
|
|
Timestamp(const Timestamp&) = default;
|
|
Timestamp(Timestamp&&) = default;
|
|
|
|
static Timestamp now()
|
|
{
|
|
timespec time;
|
|
clock_gettime(CLOCK_REALTIME, &time);
|
|
|
|
return {time.tv_sec, time.tv_nsec};
|
|
}
|
|
|
|
long year() const
|
|
{
|
|
return time.tm_year + 1900;
|
|
}
|
|
|
|
long month() const
|
|
{
|
|
return time.tm_mon + 1;
|
|
}
|
|
|
|
long day() const
|
|
{
|
|
return time.tm_mday;
|
|
}
|
|
|
|
long hour() const
|
|
{
|
|
return time.tm_hour;
|
|
}
|
|
|
|
long min() const
|
|
{
|
|
return time.tm_min;
|
|
}
|
|
|
|
long sec() const
|
|
{
|
|
return time.tm_sec;
|
|
}
|
|
|
|
long subsec() const
|
|
{
|
|
return nsec / 10000;
|
|
}
|
|
|
|
const std::string to_iso8601() const
|
|
{
|
|
return fmt::format(fiso8601, year(), month(), day(), hour(),
|
|
min(), sec(), subsec());
|
|
}
|
|
|
|
friend std::ostream& operator<<(std::ostream& stream, const Timestamp& ts)
|
|
{
|
|
return stream << ts.to_iso8601();
|
|
}
|
|
|
|
operator std::string() const
|
|
{
|
|
return to_iso8601();
|
|
}
|
|
|
|
constexpr friend bool operator==(const Timestamp& a, const Timestamp& b)
|
|
{
|
|
return a.unix_time == b.unix_time && a.nsec == b.nsec;
|
|
}
|
|
|
|
constexpr friend bool operator<(const Timestamp& a, const Timestamp& b)
|
|
{
|
|
return a.unix_time < b.unix_time
|
|
|| (a.unix_time == b.unix_time && a.nsec < b.nsec);
|
|
}
|
|
|
|
private:
|
|
std::tm time;
|
|
|
|
std::time_t unix_time;
|
|
long nsec;
|
|
|
|
static constexpr auto fiso8601 =
|
|
"{:04d}-{:02d}-{:02d}T{:02d}:{:02d}:{:02d}.{:05d}Z";
|
|
};
|