SyncBarrier Class Reference

#include "lib/sync-barrier.hpp"

Description

A one time N-fold mutual synchronisation barrier.

Calls to sync() will block until N such calls occurred.

Note

The blocking wait is implemented by a check-and-yield() loop, increasing load at the OS scheduler, possibly starving the system when stretched out over extended time.

Remarks

intended use is to allow all participants to catch up and reach a well defined point with initialisation or implementation logic.

See also

SyncBarrierPerformance_test::run for actual performance measurements!

Definition at line 64 of file sync-barrier.hpp.

Public Member Functions
	SyncBarrier (uint nFold=2)
void	sync ()

Private Attributes
std::atomic_int	latch_

Additional Inherited Members
Private Member Functions inherited from NonCopyable
	~NonCopyable ()=default
	NonCopyable ()=default
	NonCopyable (NonCopyable const &)=delete
NonCopyable &	operator= (NonCopyable const &)=delete

Constructor & Destructor Documentation

SyncBarrier()

SyncBarrier ( uint  nFold = 2 )

inlineexplicit

Parameters

nFold

the number of participants to sync (min. 2)

Definition at line 72 of file sync-barrier.hpp.

Member Function Documentation

sync()

void sync ( )

inline

Definition at line 80 of file sync-barrier.hpp.

References SyncBarrier::latch_.

Referenced by TestThread::TestThread(), CallQueue_test::Worker::Worker(), SessionCommandFunction_test::perform_massivelyParallel(), SyncBarrier_test::run(), DispatcherLoop::runSessionThread(), and lib::test::threadBenchmark().

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Member Data Documentation

latch_

std::atomic_int latch_

private

Definition at line 67 of file sync-barrier.hpp.

Referenced by SyncBarrier::sync().

Inheritance diagram for SyncBarrier:

Collaboration diagram for SyncBarrier:

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

• sync-barrier.hpp