From 38be0d13830efd2d98281c645c3a60afe05ffece Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- src/corelib/concurrent/qtconcurrentmap.h | 780 +++++++++++++++++++++++++++++++ 1 file changed, 780 insertions(+) create mode 100644 src/corelib/concurrent/qtconcurrentmap.h (limited to 'src/corelib/concurrent/qtconcurrentmap.h') diff --git a/src/corelib/concurrent/qtconcurrentmap.h b/src/corelib/concurrent/qtconcurrentmap.h new file mode 100644 index 00000000000..80edf7e1366 --- /dev/null +++ b/src/corelib/concurrent/qtconcurrentmap.h @@ -0,0 +1,780 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QTCONCURRENT_MAP_H +#define QTCONCURRENT_MAP_H + +#include + +#ifndef QT_NO_CONCURRENT + +#include +#include +#include +#include + +QT_BEGIN_HEADER +QT_BEGIN_NAMESPACE + +QT_MODULE(Core) + +#ifdef qdoc + +namespace QtConcurrent { + + QFuture map(Sequence &sequence, MapFunction function); + QFuture map(Iterator begin, Iterator end, MapFunction function); + + template + QFuture mapped(const Sequence &sequence, MapFunction function); + template + QFuture mapped(ConstIterator begin, ConstIterator end, MapFunction function); + + template + QFuture mappedReduced(const Sequence &sequence, + MapFunction function, + ReduceFunction function, + QtConcurrent::ReduceOptions options = UnorderedReduce | SequentialReduce); + template + QFuture mappedReduced(ConstIterator begin, + ConstIterator end, + MapFunction function, + ReduceFunction function, + QtConcurrent::ReduceOptions options = UnorderedReduce | SequentialReduce); + + void blockingMap(Sequence &sequence, MapFunction function); + void blockingMap(Iterator begin, Iterator end, MapFunction function); + + template + T blockingMapped(const Sequence &sequence, MapFunction function); + template + T blockingMapped(ConstIterator begin, ConstIterator end, MapFunction function); + + template + T blockingMappedReduced(const Sequence &sequence, + MapFunction function, + ReduceFunction function, + QtConcurrent::ReduceOptions options = UnorderedReduce | SequentialReduce); + template + T blockingMappedReduced(ConstIterator begin, + ConstIterator end, + MapFunction function, + ReduceFunction function, + QtConcurrent::ReduceOptions options = UnorderedReduce | SequentialReduce); + +} // namespace QtConcurrent + +#else + +namespace QtConcurrent { + +// map() on sequences +template +QFuture map(Sequence &sequence, MapFunctor map) +{ + return startMap(sequence.begin(), sequence.end(), map); +} + +template +QFuture map(Sequence &sequence, T (map)(U)) +{ + return startMap(sequence.begin(), sequence.end(), FunctionWrapper1(map)); +} + +template +QFuture map(Sequence &sequence, T (C::*map)()) +{ + return startMap(sequence.begin(), sequence.end(), MemberFunctionWrapper(map)); +} + +// map() on iterators +template +QFuture map(Iterator begin, Iterator end, MapFunctor map) +{ + return startMap(begin, end, map); +} + +template +QFuture map(Iterator begin, Iterator end, T (map)(U)) +{ + return startMap(begin, end, FunctionWrapper1(map)); +} + +template +QFuture map(Iterator begin, Iterator end, T (C::*map)()) +{ + return startMap(begin, end, MemberFunctionWrapper(map)); +} + +// mappedReduced() for sequences. +template +QFuture mappedReduced(const Sequence &sequence, + MapFunctor map, + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, map, reduce, options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + MapFunctor map, + T (reduce)(U &, V), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, map, FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + MapFunctor map, + T (C::*reduce)(U), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, map, MemberFunctionWrapper1(reduce), options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (map)(U), + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, FunctionWrapper1(map), reduce, options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (C::*map)() const, + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, ConstMemberFunctionWrapper(map), reduce, options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (map)(U), + V (reduce)(W &, X), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (sequence, FunctionWrapper1(map), FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (C::*map)() const, + U (reduce)(V &, W), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced (sequence, ConstMemberFunctionWrapper(map), + FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (map)(U), + V (C::*reduce)(W), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced (sequence, FunctionWrapper1(map), + MemberFunctionWrapper1(reduce), options); +} + +template +QFuture mappedReduced(const Sequence &sequence, + T (C::*map)() const, + U (D::*reduce)(V), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced(sequence, ConstMemberFunctionWrapper(map), + MemberFunctionWrapper1(reduce), options); +} + +// mappedReduced() for iterators +template +QFuture mappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, map, reduce, options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + T (reduce)(U &, V), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, map, FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + T (C::*reduce)(U), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, map, MemberFunctionWrapper1(reduce), options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (map)(U), + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, FunctionWrapper1(map), reduce, options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, ConstMemberFunctionWrapper(map), reduce, options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (map)(U), + V (reduce)(W &, X), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, FunctionWrapper1(map), FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + U (reduce)(V &, W), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced(begin, end, ConstMemberFunctionWrapper(map), + FunctionWrapper2(reduce), options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (map)(U), + V (C::*reduce)(W), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced + (begin, end, FunctionWrapper1(map), MemberFunctionWrapper1(reduce), options); +} + +template +QFuture mappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + U (D::*reduce)(V), + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return startMappedReduced(begin, end, ConstMemberFunctionWrapper(map), + MemberFunctionWrapper1(reduce), options); +} + +// mapped() for sequences +template +QFuture mapped(const Sequence &sequence, MapFunctor map) +{ + return startMapped(sequence, map); +} + +template +QFuture mapped(const Sequence &sequence, T (map)(U)) +{ + return startMapped(sequence, FunctionWrapper1(map)); +} + +template +QFuture mapped(const Sequence &sequence, T (C::*map)() const) +{ + return startMapped(sequence, ConstMemberFunctionWrapper(map)); +} + +// mapped() for iterator ranges. +template +QFuture mapped(Iterator begin, Iterator end, MapFunctor map) +{ + return startMapped(begin, end, map); +} + +template +QFuture mapped(Iterator begin, Iterator end, T (map)(U)) +{ + return startMapped(begin, end, FunctionWrapper1(map)); +} + +template +QFuture mapped(Iterator begin, Iterator end, T (C::*map)() const) +{ + return startMapped(begin, end, ConstMemberFunctionWrapper(map)); +} + + +template +void blockingMap(Sequence &sequence, MapFunctor map) +{ + startMap(sequence.begin(), sequence.end(), map).startBlocking(); +} + +template +void blockingMap(Sequence &sequence, T (map)(U)) +{ + startMap(sequence.begin(), sequence.end(), QtConcurrent::FunctionWrapper1(map)).startBlocking(); +} + +template +void blockingMap(Sequence &sequence, T (C::*map)()) +{ + startMap(sequence.begin(), sequence.end(), QtConcurrent::MemberFunctionWrapper(map)).startBlocking(); +} + +template +void blockingMap(Iterator begin, Iterator end, MapFunctor map) +{ + startMap(begin, end, map).startBlocking(); +} + +template +void blockingMap(Iterator begin, Iterator end, T (map)(U)) +{ + startMap(begin, end, QtConcurrent::FunctionWrapper1(map)).startBlocking(); +} + +template +void blockingMap(Iterator begin, Iterator end, T (C::*map)()) +{ + startMap(begin, end, QtConcurrent::MemberFunctionWrapper(map)).startBlocking(); +} + +template +ResultType blockingMappedReduced(const Sequence &sequence, + MapFunctor map, + ReduceFunctor reduce, + ReduceOptions options = ReduceOptions(UnorderedReduce | SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, map, reduce, options).startBlocking(); +} + +template +U blockingMappedReduced(const Sequence &sequence, + MapFunctor map, + T (reduce)(U &, V), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + map, + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +C blockingMappedReduced(const Sequence &sequence, + MapFunctor map, + T (C::*reduce)(U), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + map, + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +template +ResultType blockingMappedReduced(const Sequence &sequence, + T (map)(U), + ReduceFunctor reduce, + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::FunctionWrapper1(map), + reduce, + options) + .startBlocking(); +} + +template +ResultType blockingMappedReduced(const Sequence &sequence, + T (C::*map)() const, + ReduceFunctor reduce, + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::ConstMemberFunctionWrapper(map), + reduce, + options) + .startBlocking(); +} + +template +W blockingMappedReduced(const Sequence &sequence, + T (map)(U), + V (reduce)(W &, X), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::FunctionWrapper1(map), + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +V blockingMappedReduced(const Sequence &sequence, + T (C::*map)() const, + U (reduce)(V &, W), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::ConstMemberFunctionWrapper(map), + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +C blockingMappedReduced(const Sequence &sequence, + T (map)(U), + V (C::*reduce)(W), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::FunctionWrapper1(map), + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +template +D blockingMappedReduced(const Sequence &sequence, + T (C::*map)() const, + U (D::*reduce)(V), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (sequence, + QtConcurrent::ConstMemberFunctionWrapper(map), + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +template +ResultType blockingMappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + ReduceFunctor reduce, + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, end, map, reduce, options).startBlocking(); +} + +template +U blockingMappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + T (reduce)(U &, V), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + map, + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +C blockingMappedReduced(Iterator begin, + Iterator end, + MapFunctor map, + T (C::*reduce)(U), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + map, + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +template +ResultType blockingMappedReduced(Iterator begin, + Iterator end, + T (map)(U), + ReduceFunctor reduce, + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::FunctionWrapper1(map), + reduce, + options) + .startBlocking(); +} + +template +ResultType blockingMappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + ReduceFunctor reduce, + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::ConstMemberFunctionWrapper(map), + reduce, + options) + .startBlocking(); +} + +template +W blockingMappedReduced(Iterator begin, + Iterator end, + T (map)(U), + V (reduce)(W &, X), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::FunctionWrapper1(map), + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +V blockingMappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + U (reduce)(V &, W), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::ConstMemberFunctionWrapper(map), + QtConcurrent::FunctionWrapper2(reduce), + options) + .startBlocking(); +} + +template +C blockingMappedReduced(Iterator begin, + Iterator end, + T (map)(U), + V (C::*reduce)(W), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::FunctionWrapper1(map), + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +template +D blockingMappedReduced(Iterator begin, + Iterator end, + T (C::*map)() const, + U (D::*reduce)(V), + QtConcurrent::ReduceOptions options = QtConcurrent::ReduceOptions(QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce)) +{ + return QtConcurrent::startMappedReduced + (begin, + end, + QtConcurrent::ConstMemberFunctionWrapper(map), + QtConcurrent::MemberFunctionWrapper1(reduce), + options) + .startBlocking(); +} + +// mapped() for sequences with a different putput sequence type. +template +OutputSequence blockingMapped(const InputSequence &sequence, MapFunctor map) +{ + return blockingMappedReduced(sequence, map, &OutputSequence::push_back, + QtConcurrent::OrderedReduce); +} + +template +OutputSequence blockingMapped(const InputSequence &sequence, T (map)(U)) +{ + return blockingMappedReduced(sequence, map, &OutputSequence::push_back, + QtConcurrent::OrderedReduce); +} + +template +OutputSequence blockingMapped(const InputSequence &sequence, T (C::*map)() const) +{ + return blockingMappedReduced(sequence, map, &OutputSequence::push_back, + QtConcurrent::OrderedReduce); +} +#ifndef QT_NO_TEMPLATE_TEMPLATE_PARAMETERS + +// overloads for changing the container value type: +template