CppCommon::SpinBarrier Class Reference

Spin barrier synchronization primitive. More...

#include <spin_barrier.h>

Public Member Functions
	SpinBarrier (int threads) noexcept
	Default class constructor.
	SpinBarrier (const SpinBarrier &)=delete
	SpinBarrier (SpinBarrier &&)=delete
	~SpinBarrier ()=default
SpinBarrier &	operator= (const SpinBarrier &)=delete
SpinBarrier &	operator= (SpinBarrier &&)=delete
int	threads () const noexcept
	Get the count of threads to wait at the barrier.
bool	Wait () noexcept
	Wait at the barrier until all other threads reach this barrier.

Detailed Description

Spin barrier synchronization primitive.

A barrier for a group of threads in the source code means any thread must stop at this point and cannot proceed until all other threads reach this barrier.

Spin version: threads will busy-wait and waste CPU cycles instead of yielding the CPU to another thread. Do not use spinlocks unless you are certain that you understand the consequences!

Thread-safe.

https://en.wikipedia.org/wiki/Barrier_(computer_science) https://en.wikipedia.org/wiki/Spinlock

Examples

threads_spin_barrier.cpp.

Definition at line 30 of file spin_barrier.h.

Constructor & Destructor Documentation

SpinBarrier() [1/3]

CppCommon::SpinBarrier::SpinBarrier ( int threads )

inlineexplicitnoexcept

Default class constructor.

Parameters

threads

- Count of threads to wait at the barrier

Definition at line 11 of file spin_barrier.inl.

SpinBarrier() [2/3]

CppCommon::SpinBarrier::SpinBarrier ( const SpinBarrier & )

delete

SpinBarrier() [3/3]

CppCommon::SpinBarrier::SpinBarrier ( SpinBarrier && )

delete

~SpinBarrier()

CppCommon::SpinBarrier::~SpinBarrier ( )

default

Member Function Documentation

operator=() [1/2]

SpinBarrier & CppCommon::SpinBarrier::operator= ( const SpinBarrier & )

delete

operator=() [2/2]

SpinBarrier & CppCommon::SpinBarrier::operator= ( SpinBarrier && )

delete

threads()

int CppCommon::SpinBarrier::threads ( ) const

inlinenoexcept

Get the count of threads to wait at the barrier.

Definition at line 46 of file spin_barrier.h.

Wait()

bool CppCommon::SpinBarrier::Wait ( )

inlinenoexcept

Wait at the barrier until all other threads reach this barrier.

Will block.

Returns

'true' for the last thread that reach barrier, 'false' for each of the remaining threads

Examples

threads_spin_barrier.cpp.

Definition at line 16 of file spin_barrier.inl.

---

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

• include/threads/spin_barrier.h
• include/threads/spin_barrier.inl