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- #ifndef API_UNITS_TIMESTAMP_H_
- #define API_UNITS_TIMESTAMP_H_
- #ifdef UNIT_TEST
- #include <ostream> // no-presubmit-check TODO(webrtc:8982)
- #endif
- #include <string>
- #include <type_traits>
- #include "api/units/time_delta.h"
- #include "rtc_base/checks.h"
- namespace webrtc {
- class Timestamp final : public rtc_units_impl::UnitBase<Timestamp> {
- public:
- template <typename T>
- static constexpr Timestamp Seconds(T value) {
- static_assert(std::is_arithmetic<T>::value, "");
- return FromFraction(1'000'000, value);
- }
- template <typename T>
- static constexpr Timestamp Millis(T value) {
- static_assert(std::is_arithmetic<T>::value, "");
- return FromFraction(1'000, value);
- }
- template <typename T>
- static constexpr Timestamp Micros(T value) {
- static_assert(std::is_arithmetic<T>::value, "");
- return FromValue(value);
- }
- Timestamp() = delete;
- template <typename T = int64_t>
- constexpr T seconds() const {
- return ToFraction<1000000, T>();
- }
- template <typename T = int64_t>
- constexpr T ms() const {
- return ToFraction<1000, T>();
- }
- template <typename T = int64_t>
- constexpr T us() const {
- return ToValue<T>();
- }
- constexpr int64_t seconds_or(int64_t fallback_value) const {
- return ToFractionOr<1000000>(fallback_value);
- }
- constexpr int64_t ms_or(int64_t fallback_value) const {
- return ToFractionOr<1000>(fallback_value);
- }
- constexpr int64_t us_or(int64_t fallback_value) const {
- return ToValueOr(fallback_value);
- }
- constexpr Timestamp operator+(const TimeDelta delta) const {
- if (IsPlusInfinity() || delta.IsPlusInfinity()) {
- RTC_DCHECK(!IsMinusInfinity());
- RTC_DCHECK(!delta.IsMinusInfinity());
- return PlusInfinity();
- } else if (IsMinusInfinity() || delta.IsMinusInfinity()) {
- RTC_DCHECK(!IsPlusInfinity());
- RTC_DCHECK(!delta.IsPlusInfinity());
- return MinusInfinity();
- }
- return Timestamp::Micros(us() + delta.us());
- }
- constexpr Timestamp operator-(const TimeDelta delta) const {
- if (IsPlusInfinity() || delta.IsMinusInfinity()) {
- RTC_DCHECK(!IsMinusInfinity());
- RTC_DCHECK(!delta.IsPlusInfinity());
- return PlusInfinity();
- } else if (IsMinusInfinity() || delta.IsPlusInfinity()) {
- RTC_DCHECK(!IsPlusInfinity());
- RTC_DCHECK(!delta.IsMinusInfinity());
- return MinusInfinity();
- }
- return Timestamp::Micros(us() - delta.us());
- }
- constexpr TimeDelta operator-(const Timestamp other) const {
- if (IsPlusInfinity() || other.IsMinusInfinity()) {
- RTC_DCHECK(!IsMinusInfinity());
- RTC_DCHECK(!other.IsPlusInfinity());
- return TimeDelta::PlusInfinity();
- } else if (IsMinusInfinity() || other.IsPlusInfinity()) {
- RTC_DCHECK(!IsPlusInfinity());
- RTC_DCHECK(!other.IsMinusInfinity());
- return TimeDelta::MinusInfinity();
- }
- return TimeDelta::Micros(us() - other.us());
- }
- constexpr Timestamp& operator-=(const TimeDelta delta) {
- *this = *this - delta;
- return *this;
- }
- constexpr Timestamp& operator+=(const TimeDelta delta) {
- *this = *this + delta;
- return *this;
- }
- private:
- friend class rtc_units_impl::UnitBase<Timestamp>;
- using UnitBase::UnitBase;
- static constexpr bool one_sided = true;
- };
- std::string ToString(Timestamp value);
- inline std::string ToLogString(Timestamp value) {
- return ToString(value);
- }
- #ifdef UNIT_TEST
- inline std::ostream& operator<<(
- std::ostream& stream,
- Timestamp value) {
- return stream << ToString(value);
- }
- #endif
- }
- #endif
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