267 lines
11 KiB
C++
267 lines
11 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTCONCURRENT_FILTER_H
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#define QTCONCURRENT_FILTER_H
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#include <QtConcurrent/qtconcurrent_global.h>
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#ifndef QT_NO_CONCURRENT
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#include <QtConcurrent/qtconcurrentfilterkernel.h>
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#include <QtConcurrent/qtconcurrentfunctionwrappers.h>
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QT_BEGIN_NAMESPACE
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#ifdef Q_QDOC
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namespace QtConcurrent {
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QFuture<void> filter(Sequence &sequence, FilterFunction filterFunction);
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template <typename T>
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QFuture<T> filtered(const Sequence &sequence, FilterFunction filterFunction);
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template <typename T>
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QFuture<T> filtered(ConstIterator begin, ConstIterator end, FilterFunction filterFunction);
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template <typename T>
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QFuture<T> filteredReduced(const Sequence &sequence,
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FilterFunction filterFunction,
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ReduceFunction reduceFunction,
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QtConcurrent::ReduceOptions reduceOptions = UnorderedReduce | SequentialReduce);
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template <typename T>
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QFuture<T> filteredReduced(ConstIterator begin,
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ConstIterator end,
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FilterFunction filterFunction,
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ReduceFunction reduceFunction,
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QtConcurrent::ReduceOptions reduceOptions = UnorderedReduce | SequentialReduce);
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void blockingFilter(Sequence &sequence, FilterFunction filterFunction);
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template <typename Sequence>
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Sequence blockingFiltered(const Sequence &sequence, FilterFunction filterFunction);
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template <typename Sequence>
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Sequence blockingFiltered(ConstIterator begin, ConstIterator end, FilterFunction filterFunction);
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template <typename T>
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T blockingFilteredReduced(const Sequence &sequence,
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FilterFunction filterFunction,
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ReduceFunction reduceFunction,
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QtConcurrent::ReduceOptions reduceOptions = UnorderedReduce | SequentialReduce);
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template <typename T>
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T blockingFilteredReduced(ConstIterator begin,
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ConstIterator end,
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FilterFunction filterFunction,
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ReduceFunction reduceFunction,
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QtConcurrent::ReduceOptions reduceOptions = UnorderedReduce | SequentialReduce);
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} // namespace QtConcurrent
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#else
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namespace QtConcurrent {
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template <typename Sequence, typename KeepFunctor, typename ReduceFunctor>
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ThreadEngineStarter<void> filterInternal(Sequence &sequence, KeepFunctor keep, ReduceFunctor reduce)
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{
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typedef FilterKernel<Sequence, KeepFunctor, ReduceFunctor> KernelType;
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return startThreadEngine(new KernelType(sequence, keep, reduce));
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}
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// filter() on sequences
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template <typename Sequence, typename KeepFunctor>
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QFuture<void> filter(Sequence &sequence, KeepFunctor keep)
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{
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return filterInternal(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper());
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}
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// filteredReduced() on sequences
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template <typename ResultType, typename Sequence, typename KeepFunctor, typename ReduceFunctor>
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QFuture<ResultType> filteredReduced(const Sequence &sequence,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<ResultType>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options);
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}
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template <typename Sequence, typename KeepFunctor, typename ReduceFunctor>
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QFuture<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> filteredReduced(const Sequence &sequence,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
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(sequence,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::createFunctionWrapper(reduce),
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options);
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}
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// filteredReduced() on iterators
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template <typename ResultType, typename Iterator, typename KeepFunctor, typename ReduceFunctor>
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QFuture<ResultType> filteredReduced(Iterator begin,
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Iterator end,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<ResultType>(begin, end, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options);
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}
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template <typename Iterator, typename KeepFunctor, typename ReduceFunctor>
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QFuture<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType> filteredReduced(Iterator begin,
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Iterator end,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
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(begin, end,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::createFunctionWrapper(reduce),
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options);
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}
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// filtered() on sequences
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template <typename Sequence, typename KeepFunctor>
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QFuture<typename Sequence::value_type> filtered(const Sequence &sequence, KeepFunctor keep)
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{
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return startFiltered(sequence, QtPrivate::createFunctionWrapper(keep));
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}
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// filtered() on iterators
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template <typename Iterator, typename KeepFunctor>
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QFuture<typename qValueType<Iterator>::value_type> filtered(Iterator begin, Iterator end, KeepFunctor keep)
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{
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return startFiltered(begin, end, QtPrivate::createFunctionWrapper(keep));
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}
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// blocking filter() on sequences
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template <typename Sequence, typename KeepFunctor>
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void blockingFilter(Sequence &sequence, KeepFunctor keep)
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{
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filterInternal(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper()).startBlocking();
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}
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// blocking filteredReduced() on sequences
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template <typename ResultType, typename Sequence, typename KeepFunctor, typename ReduceFunctor>
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ResultType blockingFilteredReduced(const Sequence &sequence,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<ResultType>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::createFunctionWrapper(reduce), options)
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.startBlocking();
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}
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template <typename Sequence, typename KeepFunctor, typename ReduceFunctor>
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typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType blockingFilteredReduced(const Sequence &sequence,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return blockingFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
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(sequence,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::createFunctionWrapper(reduce),
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options);
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}
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// blocking filteredReduced() on iterators
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template <typename ResultType, typename Iterator, typename KeepFunctor, typename ReduceFunctor>
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ResultType blockingFilteredReduced(Iterator begin,
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Iterator end,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<ResultType>
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(begin, end,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::createFunctionWrapper(reduce),
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options)
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.startBlocking();
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}
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template <typename Iterator, typename KeepFunctor, typename ReduceFunctor>
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typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType blockingFilteredReduced(Iterator begin,
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Iterator end,
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KeepFunctor keep,
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ReduceFunctor reduce,
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ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce))
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{
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return startFilteredReduced<typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
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(begin, end,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::createFunctionWrapper(reduce),
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options)
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.startBlocking();
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}
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// blocking filtered() on sequences
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template <typename Sequence, typename KeepFunctor>
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Sequence blockingFiltered(const Sequence &sequence, KeepFunctor keep)
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{
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return startFilteredReduced<Sequence>(sequence, QtPrivate::createFunctionWrapper(keep), QtPrivate::PushBackWrapper(), OrderedReduce).startBlocking();
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}
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// blocking filtered() on iterators
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template <typename OutputSequence, typename Iterator, typename KeepFunctor>
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OutputSequence blockingFiltered(Iterator begin, Iterator end, KeepFunctor keep)
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{
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return startFilteredReduced<OutputSequence>(begin, end,
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QtPrivate::createFunctionWrapper(keep),
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QtPrivate::PushBackWrapper(),
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OrderedReduce).startBlocking();
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}
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} // namespace QtConcurrent
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#endif // Q_QDOC
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QT_END_NAMESPACE
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#endif // QT_NO_CONCURRENT
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#endif
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