sf::SuspendAwareClock Struct Reference

Android, chrono-compatible, suspend-aware clock. More...

#include <SuspendAwareClock.hpp>

Public Types
using	duration = std::chrono::nanoseconds
	Type traits and static members.
using	rep = duration::rep
using	period = duration::period
using	time_point = std::chrono::time_point<SuspendAwareClock, duration>

Static Public Member Functions
static time_point	now () noexcept

Static Public Attributes
static constexpr bool	is_steady = true

Detailed Description

Android, chrono-compatible, suspend-aware clock.

Linux steady clock is represented by CLOCK_MONOTONIC. However, this implementation does not work properly for long-running clocks that work in the background when the system is suspended.

SuspendAwareClock uses CLOCK_BOOTTIME which is identical to CLOCK_MONOTONIC, except that it also includes any time that the system is suspended.

Note: In most cases, CLOCK_MONOTONIC is a better choice. Make sure this implementation is required for your use case.

Member Typedef Documentation

duration

using sf::SuspendAwareClock::duration = std::chrono::nanoseconds

Type traits and static members.

These type traits and static members meet the requirements of a Clock concept in the C++ Standard. More specifically, TrivialClock requirements are met. Thus, naming convention has been kept consistent to allow for extended use e.g. https://en.cppreference.com/w/cpp/chrono/is_clock

period

using sf::SuspendAwareClock::period = duration::period

rep

using sf::SuspendAwareClock::rep = duration::rep

time_point

using sf::SuspendAwareClock::time_point = std::chrono::time_point<SuspendAwareClock, duration>

Member Function Documentation

now()

time_point sf::SuspendAwareClock::now ( )

staticnoexcept

Member Data Documentation

is_steady

bool sf::SuspendAwareClock::is_steady = true

staticconstexpr

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The documentation for this struct was generated from the following file:

• SFML/System/SuspendAwareClock.hpp