itk::Barrier Class Reference

#include <itkBarrier.h>

Inheritance diagram for itk::Barrier:

Collaboration diagram for itk::Barrier:

Detailed Description

Standard barrier class implementation for synchronizing the execution of threads.

A barrier class is used to synchronize threaded execution by allowing threads to block until each has reached a desired state. As each thread enters the barrier it blocks. When all threads have entered the barrier, all released and continue to execute.

A thread enters the barrier by calling Wait() on the barrier class. To set up a barrier class, call Initialize(n) where n is the number of waiting threads that will trigger a release of the barrier.

Definition at line 41 of file itkBarrier.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef SmartPointer< Self >	Pointer
typedef Barrier	Self
typedef LightObject	Superclass
Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer
typedef SmartPointer< Self >	Pointer
typedef LightObject	Self

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother () const
virtual const char *	GetNameOfClass () const
void	Initialize (unsigned int)
void	Wait ()
Public Member Functions inherited from itk::LightObject
virtual void	Delete ()
virtual int	GetReferenceCount () const
	itkCloneMacro (Self)
void	Print (std::ostream &os, Indent indent=0) const
virtual void	Register () const
virtual void	SetReferenceCount (int)
virtual void	UnRegister () const noexcept

Static Public Member Functions
static Pointer	New ()
Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()
static Pointer	New ()

Private Member Functions
	Barrier ()
	~Barrier () override

Private Attributes
ConditionVariable::Pointer	m_ConditionVariable
SimpleMutexLock	m_Mutex
unsigned int	m_NumberArrived
unsigned int	m_NumberExpected

Additional Inherited Members
Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const
	LightObject ()
virtual void	PrintHeader (std::ostream &os, Indent indent) const
virtual void	PrintSelf (std::ostream &os, Indent indent) const
virtual void	PrintTrailer (std::ostream &os, Indent indent) const
virtual	~LightObject ()
Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount

Member Typedef Documentation

typedef SmartPointer< const Self > itk::Barrier::ConstPointer

Definition at line 50 of file itkBarrier.h.

typedef SmartPointer< Self > itk::Barrier::Pointer

Definition at line 49 of file itkBarrier.h.

typedef Barrier itk::Barrier::Self

Standard class typedefs.

Definition at line 47 of file itkBarrier.h.

typedef LightObject itk::Barrier::Superclass

Definition at line 48 of file itkBarrier.h.

Constructor & Destructor Documentation

itk::Barrier::Barrier ( )

private

itk::Barrier::~Barrier ( )

overrideprivate

Member Function Documentation

virtual::itk::LightObject::Pointer itk::Barrier::CreateAnother ( ) const

virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::LightObject.

virtual const char* itk::Barrier::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::LightObject.

void itk::Barrier::Initialize

(

unsigned

int

)

Creates a new system variable used to implement the barrier. The argument to this method is the number of threads that must Wait() on the barrier before it is cleared.

static Pointer itk::Barrier::New ( )

static

Method for creation through the object factory.

Referenced by itk::NarrowBandImageFilterBase< TInputImage, Image< TOutputPixelType, TInputImage::ImageDimension > >::NarrowBandImageFilterBase().

void itk::Barrier::Wait

(

)

A thread calling this method waits until m_NumberOfThreads have called Wait() on the barrier. When the final expected thread calls Wait(), all threads are released.

Member Data Documentation

ConditionVariable::Pointer itk::Barrier::m_ConditionVariable

private

Definition at line 74 of file itkBarrier.h.

SimpleMutexLock itk::Barrier::m_Mutex

private

Definition at line 75 of file itkBarrier.h.

unsigned int itk::Barrier::m_NumberArrived

private

Definition at line 72 of file itkBarrier.h.

unsigned int itk::Barrier::m_NumberExpected

private

Definition at line 73 of file itkBarrier.h.

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

• itkBarrier.h