engine::Deadline Class Reference

Internal representation of a deadline time point. More...

#include <userver/engine/deadline.hpp>

Public Types
using	Clock = std::chrono::steady_clock
using	TimePoint = Clock::time_point
using	Duration = TimePoint::duration

Public Member Functions
constexpr	Deadline ()=default
	Creates an unreachable deadline.
constexpr bool	IsReachable () const noexcept
	Returns whether the deadline can be reached.
bool	IsReached () const noexcept
	Returns whether the deadline is reached.
bool	IsSurelyReachedApprox () const noexcept
Duration	TimeLeft () const noexcept
	Returns the duration of time left before the reachable deadline.
Duration	TimeLeftApprox () const noexcept
constexpr bool	operator== (const Deadline &r) const noexcept
constexpr bool	operator< (const Deadline &r) const noexcept

Static Public Member Functions
template<typename Rep , typename Period >
static Deadline	FromDuration (const std::chrono::duration< Rep, Period > &incoming_duration) noexcept
	Converts duration to a Deadline.
template<typename Clock , typename Duration >
static Deadline	FromTimePoint (const std::chrono::time_point< Clock, Duration > &time_point) noexcept
	Converts time point to a Deadline.
static constexpr Deadline	Passed () noexcept
	A Deadline that is guaranteed to be IsReached.

Detailed Description

Internal representation of a deadline time point.

Definition at line 16 of file deadline.hpp.

Member Typedef Documentation

Clock

using engine::Deadline::Clock = std::chrono::steady_clock

Definition at line 18 of file deadline.hpp.

Duration

using engine::Deadline::Duration = TimePoint::duration

Definition at line 20 of file deadline.hpp.

TimePoint

using engine::Deadline::TimePoint = Clock::time_point

Definition at line 19 of file deadline.hpp.

Member Function Documentation

FromDuration()

template<typename Rep , typename Period >

static Deadline engine::Deadline::FromDuration ( const std::chrono::duration< Rep, Period > &  incoming_duration )

inlinestaticnoexcept

Converts duration to a Deadline.

Examples

samples/grpc_service/grpc_service.cpp.

Definition at line 45 of file deadline.hpp.

FromTimePoint()

template<typename Clock , typename Duration >

static Deadline engine::Deadline::FromTimePoint ( const std::chrono::time_point< Clock, Duration > &  time_point )

inlinestaticnoexcept

Converts time point to a Deadline.

Non-steady clocks may produce inaccurate Deadlines. Prefer using Deadline::FromDuration or std::chrono::steady_clock::time_point if possible.

Definition at line 88 of file deadline.hpp.

IsReachable()

constexpr bool engine::Deadline::IsReachable ( ) const

inlineconstexprnoexcept

Returns whether the deadline can be reached.

Definition at line 26 of file deadline.hpp.

IsSurelyReachedApprox()

bool engine::Deadline::IsSurelyReachedApprox ( ) const

noexcept

Returns whether the deadline is reached. Will report false-negatives, will never report false-positives.

operator<()

constexpr bool engine::Deadline::operator< ( const Deadline &  r ) const

inlineconstexprnoexcept

Definition at line 107 of file deadline.hpp.

operator==()

constexpr bool engine::Deadline::operator== ( const Deadline &  r ) const

inlineconstexprnoexcept

Definition at line 103 of file deadline.hpp.

Passed()

static constexpr Deadline engine::Deadline::Passed ( )

inlinestaticconstexprnoexcept

A Deadline that is guaranteed to be IsReached.

Definition at line 101 of file deadline.hpp.

TimeLeftApprox()

Duration engine::Deadline::TimeLeftApprox ( ) const

noexcept

Returns the approximate duration of time left before the reachable deadline. May be faster than TimeLeft.

See also

utils::datetime::SteadyCoarseClock

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

• userver/engine/deadline.hpp