AtomicValue< T > Class Template Reference

This is the lock free version of the AtomicValue. More...

#include <Concurrent.h>

Inherits SingleElementStorage< T >.

Public Member Functions
	AtomicValue (std::unique_ptr< T > iValue)
T const *	get ()
void	get (T &oElement)
	Copy the value to oElement. More...
void	get (T *oElement)
	Copy the value to *oElement. More...
T	getCopy ()
void	set (T const &iValue)
	Copy the value to make it accessible to get. More...
void	set (T const *iValue)
	Copy the value to make it accessible to get. More...
template<class ElementModifier >
void	update (ElementModifier const &iElementModifier)
	Use this flavor to avoid copy. More...
template<class ElementModifier >
bool	updateIf (ElementModifier const &iElementModifier)
	Use this flavor to avoid copy. More...
Public Member Functions inherited from SingleElementStorage< T >
bool	__isLockFree () const
	Used (from test) to make sure that it is a lock free implementation. More...
bool	isEmpty () const
	SingleElementStorage (std::unique_ptr< T > iElement, bool iIsEmpty) noexcept
	~SingleElementStorage ()

Private Types
using	Element = typename SingleElementStorage< T >::Element

Private Attributes
std::unique_ptr< Element >	fGetValue
std::unique_ptr< Element >	fSetValue

Additional Inherited Members
Protected Member Functions inherited from SingleElementStorage< T >
std::unique_ptr< Element >	__newElement () const
std::unique_ptr< T >	__newT () const
std::unique_ptr< Element >	load (std::unique_ptr< Element > iElement)
	Loads an element from storage. More...
std::unique_ptr< Element >	store (std::unique_ptr< Element > iElement)
	Stores an element in the storage. More...

Detailed Description

template<typename T>
class pongasoft::Utils::Concurrent::LockFree::AtomicValue< T >

This is the lock free version of the AtomicValue.

Internally it uses a different pointer for get and set. As described in the comment for SingleElementStorage, all methods related to 'get' can be called in one thread while all methods related to 'set' can be called by another.

Member Typedef Documentation

Element

using Element = typename SingleElementStorage<T>::Element

private

Constructor & Destructor Documentation

AtomicValue()

AtomicValue ( std::unique_ptr< T >  iValue )

inlineexplicit

Member Function Documentation

get() [1/3]

T const* get ( )

inline

Returns

the value

get() [2/3]

void get ( T &  oElement )

inline

Copy the value to oElement.

get() [3/3]

void get ( T *  oElement )

inline

Copy the value to *oElement.

getCopy()

T getCopy ( )

inline

Returns

a copy of the value

set() [1/2]

void set ( T const &  iValue )

inline

Copy the value to make it accessible to get.

set() [2/2]

void set ( T const *  iValue )

inline

Copy the value to make it accessible to get.

update()

void update ( ElementModifier const &  iElementModifier )

inline

Use this flavor to avoid copy.

ElementModifier will be called back with the internal pointer to update it.

updateIf()

bool updateIf ( ElementModifier const &  iElementModifier )

inline

Use this flavor to avoid copy.

ElementModifier will be called back with the internal pointer to update it.This flavor uses a callback that returns true when the update should happen and false otherwise.

Member Data Documentation

fGetValue

std::unique_ptr<Element> fGetValue

private

fSetValue

std::unique_ptr<Element> fSetValue

private

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

• pongasoft/Utils/Concurrent/Concurrent.h