join::Backoff Class Reference

adaptive backoff for busy-wait loops, requires Rdtsc::calibrate (). More...

#include <backoff.hpp>

Public Member Functions
	Backoff (std::chrono::nanoseconds spin=std::chrono::microseconds(10), std::chrono::nanoseconds yield=std::chrono::microseconds(100), std::chrono::nanoseconds sleep=std::chrono::microseconds(50)) noexcept
	construct a backoff strategy.
void	operator() () noexcept
	execute one backoff iteration.
void	reset () noexcept
	reset backoff to initial state.
bool	spinExhausted () const noexcept
	check if initial spin phase is over.

Detailed Description

adaptive backoff for busy-wait loops, requires Rdtsc::calibrate ().

Constructor & Destructor Documentation

Backoff()

join::Backoff::Backoff ( std::chrono::nanoseconds spin = std::chrono::microseconds (10), std::chrono::nanoseconds yield = std::chrono::microseconds (100), std::chrono::nanoseconds sleep = std::chrono::microseconds (50) )

inlineexplicitnoexcept

construct a backoff strategy.

Parameters

spin	spin duration.
yield	yield duration.
sleep	sleep per iteration, zero to never sleep.

Member Function Documentation

operator()()

void join::Backoff::operator() ( )

inlinenoexcept

execute one backoff iteration.

reset()

void join::Backoff::reset ( )

inlinenoexcept

reset backoff to initial state.

spinExhausted()

bool join::Backoff::spinExhausted ( ) const

inlinenoexcept

check if initial spin phase is over.

Returns

true if initial spin phase is over.

---

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

• core/include/join/backoff.hpp