Class SystemTimestamp

• Defined in File timestamp.h

Class Documentation

class SystemTimestamp

A timepoint relative to the system clock epoch.

This is used for marking the beginning and end of an operation.

Public Functions

inline SystemTimestamp() noexcept

Initializes a system timestamp pointing to the start of the epoch.

template<class Rep, class Period>
inline explicit SystemTimestamp(const std::chrono::duration<Rep, Period> &time_since_epoch) noexcept

Initializes a system timestamp from a duration.

Parameters:

time_since_epoch – Time elapsed since the beginning of the epoch.

inline SystemTimestamp(const std::chrono::system_clock::time_point &time_point) noexcept

Initializes a system timestamp based on a point in time.

Parameters:

time_point – A point in time.

inline operator std::chrono::system_clock::time_point() const noexcept

Returns a time point for the time stamp.

Returns:

A time point corresponding to the time stamp.

inline std::chrono::nanoseconds time_since_epoch() const noexcept

Returns the nanoseconds since the beginning of the epoch.

Returns:

Elapsed nanoseconds since the beginning of the epoch for this timestamp.

inline bool operator==(const SystemTimestamp &other) const noexcept

Compare two steady time stamps.

Returns:

true if the two time stamps are equal.

inline bool operator!=(const SystemTimestamp &other) const noexcept

Compare two steady time stamps for inequality.

Returns:

true if the two time stamps are not equal.