KisLazySharedCacheStorageBase< DataWrapper, T, Args > Class Template Reference

#include <KisLazySharedCacheStorage.h>

Public Types
using	ConstType = std::add_const_t<T>
using	FactoryType = T*(Args...)

Public Member Functions
void	initialize (Args... args)
bool	isNull () const
	KisLazySharedCacheStorageBase ()
	KisLazySharedCacheStorageBase (const KisLazySharedCacheStorageBase &rhs)
	KisLazySharedCacheStorageBase (std::function< FactoryType > factory)
void	reset ()
void	setFactory (std::function< FactoryType > factory)
ConstType *	value (Args... args)

Private Attributes
QAtomicPointer< ConstType >	m_cachedValue
DataWrapper	m_dataWrapper
std::function< FactoryType >	m_factory
QMutex	m_mutex

Detailed Description

template<typename DataWrapper, typename T, typename... Args>
class KisLazySharedCacheStorageBase< DataWrapper, T, Args >

Definition at line 113 of file KisLazySharedCacheStorage.h.

Member Typedef Documentation

ConstType

template<typename DataWrapper , typename T , typename... Args>

using KisLazySharedCacheStorageBase< DataWrapper, T, Args >::ConstType = std::add_const_t<T>

Definition at line 116 of file KisLazySharedCacheStorage.h.

FactoryType

template<typename DataWrapper , typename T , typename... Args>

using KisLazySharedCacheStorageBase< DataWrapper, T, Args >::FactoryType = T*(Args...)

Definition at line 117 of file KisLazySharedCacheStorage.h.

Constructor & Destructor Documentation

KisLazySharedCacheStorageBase() [1/3]

template<typename DataWrapper , typename T , typename... Args>

KisLazySharedCacheStorageBase< DataWrapper, T, Args >::KisLazySharedCacheStorageBase ( )

inline

Definition at line 120 of file KisLazySharedCacheStorage.h.

    {
    }

KisLazySharedCacheStorageBase() [2/3]

template<typename DataWrapper , typename T , typename... Args>

KisLazySharedCacheStorageBase< DataWrapper, T, Args >::KisLazySharedCacheStorageBase ( std::function< FactoryType > factory )

inline

Definition at line 124 of file KisLazySharedCacheStorage.h.

        : m_factory(factory)
    {
    }

KisLazySharedCacheStorageBase() [3/3]

template<typename DataWrapper , typename T , typename... Args>

KisLazySharedCacheStorageBase< DataWrapper, T, Args >::KisLazySharedCacheStorageBase ( const KisLazySharedCacheStorageBase< DataWrapper, T, Args > & rhs )

inline

Definition at line 129 of file KisLazySharedCacheStorage.h.

                                                                            {
        QMutexLocker l(&rhs.m_mutex);
        m_factory = rhs.m_factory;
        m_dataWrapper = rhs.m_dataWrapper;
        m_cachedValue = rhs.m_cachedValue;
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_cachedValue, KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_dataWrapper, KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_factory, and KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_mutex.

Member Function Documentation

initialize()

template<typename DataWrapper , typename T , typename... Args>

void KisLazySharedCacheStorageBase< DataWrapper, T, Args >::initialize ( Args... args )

inline

Definition at line 157 of file KisLazySharedCacheStorage.h.

                                  {
        (void) value(args...);
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::value(), and void().

isNull()

template<typename DataWrapper , typename T , typename... Args>

bool KisLazySharedCacheStorageBase< DataWrapper, T, Args >::isNull ( ) const

inline

Definition at line 153 of file KisLazySharedCacheStorage.h.

                        {
        return !bool(m_cachedValue) && !m_dataWrapper.hasValue();
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_cachedValue, and KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_dataWrapper.

reset()

template<typename DataWrapper , typename T , typename... Args>

void KisLazySharedCacheStorageBase< DataWrapper, T, Args >::reset ( )

inline

Definition at line 161 of file KisLazySharedCacheStorage.h.

                 {
        QMutexLocker l(&m_mutex);
        m_cachedValue.storeRelaxed(nullptr);
        m_dataWrapper.reset();
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_cachedValue, KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_dataWrapper, and KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_mutex.

setFactory()

template<typename DataWrapper , typename T , typename... Args>

void KisLazySharedCacheStorageBase< DataWrapper, T, Args >::setFactory ( std::function< FactoryType > factory )

inline

Definition at line 136 of file KisLazySharedCacheStorage.h.

                                                      {
        m_factory = factory;
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_factory.

value()

template<typename DataWrapper , typename T , typename... Args>

ConstType * KisLazySharedCacheStorageBase< DataWrapper, T, Args >::value ( Args... args )

inline

Definition at line 140 of file KisLazySharedCacheStorage.h.

                                   {
        ConstType *result = 0;
 
        if (m_cachedValue) {
            result = m_cachedValue;
        } else {
            QMutexLocker l1(&m_mutex);
            m_cachedValue = m_dataWrapper.lazyInitialize(m_factory, args...);
            result = m_cachedValue;
        }
        return result;
    }

References KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_cachedValue, KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_dataWrapper, KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_factory, and KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_mutex.

Member Data Documentation

m_cachedValue

template<typename DataWrapper , typename T , typename... Args>

QAtomicPointer<ConstType> KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_cachedValue

private

Definition at line 170 of file KisLazySharedCacheStorage.h.

m_dataWrapper

template<typename DataWrapper , typename T , typename... Args>

DataWrapper KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_dataWrapper

private

Definition at line 169 of file KisLazySharedCacheStorage.h.

m_factory

template<typename DataWrapper , typename T , typename... Args>

std::function<FactoryType> KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_factory

private

Definition at line 168 of file KisLazySharedCacheStorage.h.

m_mutex

template<typename DataWrapper , typename T , typename... Args>

QMutex KisLazySharedCacheStorageBase< DataWrapper, T, Args >::m_mutex

mutableprivate

Definition at line 171 of file KisLazySharedCacheStorage.h.

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

• libs/global/KisLazySharedCacheStorage.h