| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtConcurrent module of the Qt Toolkit. |
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| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #ifndef QTCONCURRENT_FILTER_H |
| #define QTCONCURRENT_FILTER_H |
| |
| #include <QtConcurrent/qtconcurrent_global.h> |
| |
| #if !defined(QT_NO_CONCURRENT) || defined(Q_CLANG_QDOC) |
| |
| #include <QtConcurrent/qtconcurrentfilterkernel.h> |
| #include <QtConcurrent/qtconcurrentfunctionwrappers.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QtConcurrent { |
| |
| //! [QtConcurrent-1] |
| template <typename Sequence, typename KeepFunctor, typename ReduceFunctor> |
| ThreadEngineStarter<void> filterInternal(Sequence &sequence, KeepFunctor keep, ReduceFunctor reduce) |
| { |
| typedef FilterKernel<Sequence, KeepFunctor, ReduceFunctor> KernelType; |
| return startThreadEngine(new KernelType(sequence, keep, reduce)); |
| } |
| |
| // filter() on sequences |
| template <typename Sequence, typename KeepFunctor> |
| QFuture<void> filter(Sequence &sequence, KeepFunctor keep) |
| { |
| return filterInternal(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper()); |
| } |
| |
| // filteredReduced() on sequences |
| template <typename ResultType, typename Sequence, typename KeepFunctor, typename ReduceFunctor> |
| QFuture<ResultType> filteredReduced(const Sequence &sequence, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<ResultType>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options); |
| } |
| |
| #ifndef Q_CLANG_QDOC |
| template <typename Sequence, typename KeepFunctor, typename ReduceFunctor> |
| QFuture<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> filteredReduced(const Sequence &sequence, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> |
| (sequence, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::createFunctionWrapper(reduce), |
| options); |
| } |
| #endif |
| |
| // filteredReduced() on iterators |
| template <typename ResultType, typename Iterator, typename KeepFunctor, typename ReduceFunctor> |
| QFuture<ResultType> filteredReduced(Iterator begin, |
| Iterator end, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<ResultType>(begin, end, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options); |
| } |
| |
| #ifndef Q_CLANG_QDOC |
| template <typename Iterator, typename KeepFunctor, typename ReduceFunctor> |
| QFuture<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> filteredReduced(Iterator begin, |
| Iterator end, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> |
| (begin, end, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::createFunctionWrapper(reduce), |
| options); |
| } |
| #endif |
| |
| // filtered() on sequences |
| template <typename Sequence, typename KeepFunctor> |
| QFuture<typename Sequence::value_type> filtered(const Sequence &sequence, KeepFunctor keep) |
| { |
| return startFiltered(sequence, QtPrivate::createFunctionWrapper(keep)); |
| } |
| |
| // filtered() on iterators |
| template <typename Iterator, typename KeepFunctor> |
| QFuture<typename qValueType<Iterator>::value_type> filtered(Iterator begin, Iterator end, KeepFunctor keep) |
| { |
| return startFiltered(begin, end, QtPrivate::createFunctionWrapper(keep)); |
| } |
| |
| // blocking filter() on sequences |
| template <typename Sequence, typename KeepFunctor> |
| void blockingFilter(Sequence &sequence, KeepFunctor keep) |
| { |
| filterInternal(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper()).startBlocking(); |
| } |
| |
| // blocking filteredReduced() on sequences |
| template <typename ResultType, typename Sequence, typename KeepFunctor, typename ReduceFunctor> |
| ResultType blockingFilteredReduced(const Sequence &sequence, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<ResultType>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options) |
| .startBlocking(); |
| } |
| |
| #ifndef Q_CLANG_QDOC |
| template <typename Sequence, typename KeepFunctor, typename ReduceFunctor> |
| typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType blockingFilteredReduced(const Sequence &sequence, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return blockingFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> |
| (sequence, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::createFunctionWrapper(reduce), |
| options); |
| } |
| #endif |
| |
| // blocking filteredReduced() on iterators |
| template <typename ResultType, typename Iterator, typename KeepFunctor, typename ReduceFunctor> |
| ResultType blockingFilteredReduced(Iterator begin, |
| Iterator end, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<ResultType> |
| (begin, end, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::createFunctionWrapper(reduce), |
| options) |
| .startBlocking(); |
| } |
| |
| #ifndef Q_CLANG_QDOC |
| template <typename Iterator, typename KeepFunctor, typename ReduceFunctor> |
| typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType blockingFilteredReduced(Iterator begin, |
| Iterator end, |
| KeepFunctor keep, |
| ReduceFunctor reduce, |
| ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) |
| { |
| return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> |
| (begin, end, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::createFunctionWrapper(reduce), |
| options) |
| .startBlocking(); |
| } |
| #endif |
| |
| // blocking filtered() on sequences |
| template <typename Sequence, typename KeepFunctor> |
| Sequence blockingFiltered(const Sequence &sequence, KeepFunctor keep) |
| { |
| return startFilteredReduced<Sequence>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper(), OrderedReduce).startBlocking(); |
| } |
| |
| // blocking filtered() on iterators |
| template <typename OutputSequence, typename Iterator, typename KeepFunctor> |
| OutputSequence blockingFiltered(Iterator begin, Iterator end, KeepFunctor keep) |
| { |
| return startFilteredReduced<OutputSequence>(begin, end, |
| QtPrivate::createFunctionWrapper(keep), |
| QtPrivate::PushBackWrapper(), |
| OrderedReduce).startBlocking(); |
| } |
| |
| } // namespace QtConcurrent |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_CONCURRENT |
| |
| #endif |