// TimeDelta represents the difference between two timestamps. Commonly this can // be a duration. However since two Timestamps are not guaranteed to have the // same epoch (they might come from different computers, making exact // synchronisation infeasible), the duration covered by a TimeDelta can be // undefined. To simplify usage, it can be constructed and converted to // different units, specifically seconds (s), milliseconds (ms) and // microseconds (us). class TimeDelta final : public rtc_units_impl::RelativeUnit<TimeDelta> { public: template <typename T> static constexpr TimeDelta Minutes(T value) {
static_assert(std::is_arithmetic<T>::value, ""); return Seconds(value * 60);
} template <typename T> static constexpr TimeDelta Seconds(T value) {
static_assert(std::is_arithmetic<T>::value, ""); return FromFraction(1'000'000, value);
} template <typename T> static constexpr TimeDelta Millis(T value) {
static_assert(std::is_arithmetic<T>::value, ""); return FromFraction(1'000, value);
} template <typename T> static constexpr TimeDelta Micros(T value) {
static_assert(std::is_arithmetic<T>::value, ""); return FromValue(value);
}
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