52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
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#ifndef TIME_HPP_GFC1AX6E
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#define TIME_HPP_GFC1AX6E
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#include <vanetza/common/clock.hpp>
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#include <boost/units/quantity.hpp>
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#include <boost/units/systems/si/time.hpp>
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namespace vanetza
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{
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namespace units
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{
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namespace si = boost::units::si;
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typedef boost::units::quantity<boost::units::si::time> Duration;
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/**
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* Convert a Boost.Units duration to a std::chrono::duration
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* \tparam U unit type
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* \tparam T value type
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* \param duration Boost.Units based duration
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* \return std::chrono::duration representative of duration
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*/
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template<typename U, typename T>
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Clock::duration clock_cast(const boost::units::quantity<U, T>& duration)
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{
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using chrono_type = std::chrono::duration<Duration::value_type>;
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const Duration quantity { duration };
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const chrono_type chrono_duration { quantity / si::seconds };
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return std::chrono::duration_cast<Clock::duration>(chrono_duration);
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}
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/**
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* Convert std::chrono::duration to a Boost.Units quantity
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* \tparam T type representing ticks
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* \tparam P tick period type
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* \param duration std::chrono::duration based duration
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* \return Boost.Units quantity representing duration
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*/
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template<class T, class P>
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Duration clock_cast(const std::chrono::duration<T, P>& duration)
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{
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using chrono_type = std::chrono::duration<Duration::value_type>;
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const auto value = std::chrono::duration_cast<chrono_type>(duration);
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return value.count() * si::seconds;
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}
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} // namespace units
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} // namespace vanetza
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#endif /* TIME_HPP_GFC1AX6E */
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