ThreadEngine< T > Class Template Reference

#include <qtconcurrentthreadengine.h>

Class Description

template<typename T>
class QtConcurrent::ThreadEngine< T >

Definition at line 138 of file qtconcurrentthreadengine.h.

Inheritance diagram for ThreadEngine< T >:

Public Types
typedef T	ResultType

Public Member Functions
virtual T *	result ()
QFutureInterface< T > *	futureInterfaceTyped ()
T *	startSingleThreaded ()
T *	startBlocking ()
QFuture< T >	startAsynchronously ()
void	asynchronousFinish ()
void	reportResult (const T *_result, int index=-1)
void	reportResults (const QVector< T > &_result, int index=-1, int count=-1)
Public Member Functions inherited from ThreadEngineBase
	ThreadEngineBase ()
virtual	~ThreadEngineBase ()
void	startSingleThreaded ()
void	startBlocking ()
void	startThread ()
bool	isCanceled ()
void	waitForResume ()
bool	isProgressReportingEnabled ()
void	setProgressValue (int progress)
void	setProgressRange (int minimum, int maximum)
void	acquireBarrierSemaphore ()
Public Member Functions inherited from QRunnable
	QRunnable ()
virtual	~QRunnable ()
bool	autoDelete () const
void	setAutoDelete (bool _autoDelete)

Additional Inherited Members
Protected Member Functions inherited from ThreadEngineBase
virtual void	start ()
virtual void	finish ()
virtual ThreadFunctionResult	threadFunction ()
virtual bool	shouldStartThread ()
virtual bool	shouldThrottleThread ()
Protected Attributes inherited from ThreadEngineBase
QFutureInterfaceBase *	futureInterface
QThreadPool *	threadPool
ThreadEngineBarrier	barrier
QtConcurrent::internal::ExceptionStore	exceptionStore

Member Typedef Documentation

typedef T ResultType

Definition at line 141 of file qtconcurrentthreadengine.h.

Member Function Documentation

virtual T* result ( )

inlinevirtual

Reimplemented in FilteredReducedKernel< ReducedResultType, Iterator, KeepFunctor, ReduceFunctor, Reducer >, and MappedReducedKernel< ReducedResultType, Iterator, MapFunctor, ReduceFunctor, Reducer >.

Definition at line 143 of file qtconcurrentthreadengine.h.

{ return 0; }

QFutureInterface<T>* futureInterfaceTyped ( )

inline

Definition at line 145 of file qtconcurrentthreadengine.h.

    {
        return static_cast<QFutureInterface<T> *>(futureInterface);
    }

T* startSingleThreaded ( )

inline

Definition at line 151 of file qtconcurrentthreadengine.h.

    {
        ThreadEngineBase::startSingleThreaded();
        return result();
    }

T* startBlocking ( )

inline

Definition at line 160 of file qtconcurrentthreadengine.h.

    {
        ThreadEngineBase::startBlocking();
        return result();
    }

QFuture<T> startAsynchronously ( )

inline

Definition at line 168 of file qtconcurrentthreadengine.h.

    {
        futureInterface = new QFutureInterface<T>();

        // reportStart() must be called before starting threads, otherwise the
        // user algorithm might finish while reportStart() is running, which
        // is very bad.
        futureInterface->reportStarted();
        QFuture<T> future = QFuture<T>(futureInterfaceTyped());
        start();

        acquireBarrierSemaphore();
        threadPool->start(this);
        return future;
    }

void asynchronousFinish ( )

inlinevirtual

Implements ThreadEngineBase.

Definition at line 184 of file qtconcurrentthreadengine.h.

    {
        finish();
        futureInterfaceTyped()->reportFinished(result());
        delete futureInterfaceTyped();
        delete this;
    }

void reportResult ( const T *  _result, int  index = -1  )

inline

Definition at line 193 of file qtconcurrentthreadengine.h.

    {
        if (futureInterface)
            futureInterfaceTyped()->reportResult(_result, index);
    }

void reportResults ( const QVector< T > &  _result, int  index = -1, int  count = -1  )

inline

Definition at line 199 of file qtconcurrentthreadengine.h.

    {
        if (futureInterface)
            futureInterfaceTyped()->reportResults(_result, index, count);
    }

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

• QtCore/qtconcurrentthreadengine.h