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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Public Types | Public Member Functions | List of all members
QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer > Class Template Reference

\inmodule QtConcurrent More...

#include <qtconcurrentmapkernel.h>

+ Inheritance diagram for QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >:
+ Collaboration diagram for QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >:

Public Types

typedef ReducedResultType ReturnType
 
typedef ReducedResultType ResultType
 
- Public Types inherited from QtConcurrent::IterateKernel< Iterator, ReducedResultType >
typedef ReducedResultType ResultType
 
- Public Types inherited from QtConcurrent::ThreadEngine< T >
typedef T ResultType
 
- Public Types inherited from QRunnable
template<typename Callable >
using if_callable = std::enable_if_t<std::is_invocable_r_v<void, Callable>, bool>
 

Public Member Functions

template<typename F1 = MapFunctor, typename F2 = ReduceFunctor>
 MappedReducedKernel (QThreadPool *pool, Iterator begin, Iterator end, F1 &&_map, F2 &&_reduce, ReduceOptions reduceOptions)
 
template<typename F1 = MapFunctor, typename F2 = ReduceFunctor>
 MappedReducedKernel (QThreadPool *pool, Iterator begin, Iterator end, F1 &&_map, F2 &&_reduce, ReducedResultType &&initialValue, ReduceOptions reduceOptions)
 
bool runIteration (Iterator it, int index, ReducedResultType *) override
 
bool runIterations (Iterator sequenceBeginIterator, int beginIndex, int endIndex, ReducedResultType *) override
 
void finish () override
 
bool shouldThrottleThread () override
 
bool shouldStartThread () override
 
ReducedResultType * result () override
 
- Public Member Functions inherited from QtConcurrent::IterateKernel< Iterator, ReducedResultType >
 IterateKernel (QThreadPool *pool, Iterator _begin, Iterator _end)
 
 IterateKernel (QThreadPool *pool, Iterator _begin, Iterator _end)
 
 IterateKernel (QThreadPool *pool, Iterator _begin, Iterator _end, U &&_defaultValue)
 
virtual ~IterateKernel ()
 
void start () override
 
ThreadFunctionResult threadFunction () override
 
ThreadFunctionResult forThreadFunction ()
 
ThreadFunctionResult whileThreadFunction ()
 
- Public Member Functions inherited from QtConcurrent::ThreadEngine< T >
 ThreadEngine (QThreadPool *pool)
 
QFutureInterface< T > * futureInterfaceTyped ()
 
T * startSingleThreaded ()
 
QFuture< T > startAsynchronously ()
 
void asynchronousFinish () override
 
void reportResult (const T *_result, int index=-1)
 
void reportResults (const QList< T > &_result, int index=-1, int count=-1)
 
- Public Member Functions inherited from QtConcurrent::ThreadEngineBase
 ThreadEngineBase (QThreadPool *pool)
 
virtual ~ThreadEngineBase ()
 
void startSingleThreaded ()
 
void startThread ()
 
bool isCanceled ()
 
void waitForResume ()
 
bool isProgressReportingEnabled ()
 
void setProgressValue (int progress)
 
void setProgressRange (int minimum, int maximum)
 
void acquireBarrierSemaphore ()
 
void reportIfSuspensionDone () const
 
- Public Member Functions inherited from QRunnable
constexpr QRunnable () noexcept=default
 Constructs a QRunnable.
 
virtual ~QRunnable ()
 QRunnable virtual destructor.
 
bool autoDelete () const
 Returns true is auto-deletion is enabled; false otherwise.
 
void setAutoDelete (bool autoDelete)
 Enables auto-deletion if autoDelete is true; otherwise auto-deletion is disabled.
 
template<typename Callable , if_callable< Callable > = true>
 QGenericRunnable (Callable &&c)
 
 ~QGenericRunnable () override
 
void run () override
 

Additional Inherited Members

- Static Public Member Functions inherited from QRunnable
template<typename Callable , if_callable< Callable > = true>
static QRunnable * create (Callable &&functionToRun)
 
static QRunnable * create (std::nullptr_t)=delete
 
- Public Attributes inherited from QtConcurrent::IterateKernel< Iterator, ReducedResultType >
const Iterator begin
 
const Iterator end
 
Iterator current
 
QAtomicInt currentIndex
 
QAtomicInt iteratorThreads
 
QAtomicInt completed
 
const int iterationCount
 
const bool forIteration
 
bool progressReportingEnabled
 
DefaultValueContainer< ResultType > defaultValue
 
- Protected Attributes inherited from QtConcurrent::ThreadEngineBase
QFutureInterfaceBase * futureInterface
 
QThreadPool * threadPool
 
ThreadEngineBarrier barrier
 
QtPrivate::ExceptionStore exceptionStore
 
QBasicMutex mutex
 

Detailed Description

template<typename ReducedResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor, typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
class QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >

\inmodule QtConcurrent

Definition at line 58 of file qtconcurrentmapkernel.h.

Member Typedef Documentation

◆ ResultType

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
typedef ReducedResultType QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::ResultType

Definition at line 135 of file qtconcurrentmapkernel.h.

◆ ReturnType

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
typedef ReducedResultType QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::ReturnType

Definition at line 67 of file qtconcurrentmapkernel.h.

Constructor & Destructor Documentation

◆ MappedReducedKernel() [1/2]

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
template<typename F1 = MapFunctor, typename F2 = ReduceFunctor>
QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::MappedReducedKernel ( QThreadPool * pool,
Iterator begin,
Iterator end,
F1 && _map,
F2 && _reduce,
ReduceOptions reduceOptions )
inline

Definition at line 70 of file qtconcurrentmapkernel.h.

References map.

◆ MappedReducedKernel() [2/2]

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
template<typename F1 = MapFunctor, typename F2 = ReduceFunctor>
QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::MappedReducedKernel ( QThreadPool * pool,
Iterator begin,
Iterator end,
F1 && _map,
F2 && _reduce,
ReducedResultType && initialValue,
ReduceOptions reduceOptions )
inline

Definition at line 80 of file qtconcurrentmapkernel.h.

References map.

Member Function Documentation

◆ finish()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
void QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::finish ( )
inlineoverridevirtual

Reimplemented from QtConcurrent::ThreadEngineBase.

Definition at line 120 of file qtconcurrentmapkernel.h.

◆ result()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
ReducedResultType * QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::result ( )
inlineoverridevirtual

Reimplemented from QtConcurrent::ThreadEngine< T >.

Definition at line 136 of file qtconcurrentmapkernel.h.

◆ runIteration()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
bool QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::runIteration ( Iterator it,
int index,
ReducedResultType *  )
inlineoverridevirtual

Reimplemented from QtConcurrent::IterateKernel< Iterator, ReducedResultType >.

Definition at line 91 of file qtconcurrentmapkernel.h.

References QList< T >::append(), QList< T >::begin(), QList< T >::end(), it, map, and results.

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◆ runIterations()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
bool QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::runIterations ( Iterator sequenceBeginIterator,
int beginIndex,
int endIndex,
ReducedResultType *  )
inlineoverridevirtual

Reimplemented from QtConcurrent::IterateKernel< Iterator, ReducedResultType >.

Definition at line 102 of file qtconcurrentmapkernel.h.

References QList< T >::append(), QList< T >::begin(), QList< T >::end(), i, it, map, QList< T >::reserve(), and results.

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◆ shouldStartThread()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
bool QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::shouldStartThread ( )
inlineoverridevirtual

Reimplemented from QtConcurrent::IterateKernel< Iterator, ReducedResultType >.

Definition at line 130 of file qtconcurrentmapkernel.h.

References QtConcurrent::IterateKernel< Iterator, T >::shouldStartThread().

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◆ shouldThrottleThread()

template<typename ReducedResultType , typename Iterator , typename MapFunctor , typename ReduceFunctor , typename Reducer = ReduceKernel<ReduceFunctor, ReducedResultType, QtPrivate::MapResultType<Iterator, MapFunctor>>>
bool QtConcurrent::MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >::shouldThrottleThread ( )
inlineoverridevirtual

Reimplemented from QtConcurrent::ThreadEngineBase.

Definition at line 125 of file qtconcurrentmapkernel.h.

References QtConcurrent::ThreadEngineBase::shouldThrottleThread().

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