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qtbase-opensource-src/tests/auto/concurrent/qtconcurrentmap/tst_qtconcurrentmap.cpp

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qtconcurrentmap.h>
#include <qexception.h>
#include <qdebug.h>
#include <QThread>
#include <QMutex>
#include <QtTest/QtTest>
#include "functions.h"
class tst_QtConcurrentMap: public QObject
{
Q_OBJECT
private slots:
void map();
void blocking_map();
void mapped();
void blocking_mapped();
void mappedReduced();
void blocking_mappedReduced();
void assignResult();
void functionOverloads();
void noExceptFunctionOverloads();
#ifndef QT_NO_EXCEPTIONS
void exceptions();
#endif
void incrementalResults();
void noDetach();
void stlContainers();
void qFutureAssignmentLeak();
void stressTest();
void persistentResultTest();
public slots:
void throttling();
};
using namespace QtConcurrent;
void multiplyBy2Immutable(int x)
{
x *= 2;
}
class MultiplyBy2Immutable
{
public:
void operator()(int x)
{
x *= 2;
}
};
void multiplyBy2InPlace(int &x)
{
x *= 2;
}
class MultiplyBy2InPlace
{
public:
void operator()(int &x)
{
x *= 2;
}
};
Q_DECLARE_METATYPE(QList<Number>);
void tst_QtConcurrentMap::map()
{
// functors take arguments by reference, modifying the sequence in place
{
QList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::map(list, MultiplyBy2InPlace()).waitForFinished();
QCOMPARE(list, QList<int>() << 2 << 4 << 6);
QtConcurrent::map(list.begin(), list.end(), MultiplyBy2InPlace()).waitForFinished();
QCOMPARE(list, QList<int>() << 4 << 8 << 12);
// function
QtConcurrent::map(list, multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QList<int>() << 8 << 16 << 24);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QList<int>() << 16 << 32 << 48);
// bound function
QtConcurrent::map(list, multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QList<int>() << 32 << 64 << 96);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QList<int>() << 64 << 128 << 192);
// member function
QList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::map(numberList, &Number::multiplyBy2).waitForFinished();
QCOMPARE(numberList, QList<Number>() << 2 << 4 << 6);
QtConcurrent::map(numberList.begin(), numberList.end(), &Number::multiplyBy2).waitForFinished();
QCOMPARE(numberList, QList<Number>() << 4 << 8 << 12);
// lambda
QtConcurrent::map(list, [](int &x){x *= 2;}).waitForFinished();
QCOMPARE(list, QList<int>() << 128 << 256 << 384);
QtConcurrent::map(list.begin(), list.end(), [](int &x){x *= 2;}).waitForFinished();
QCOMPARE(list, QList<int>() << 256 << 512 << 768);
}
// functors don't take arguments by reference, making these no-ops
{
QList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::map(list, MultiplyBy2Immutable()).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::map(list.begin(), list.end(), MultiplyBy2Immutable()).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
// function
QtConcurrent::map(list, multiplyBy2Immutable).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2Immutable).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
// bound function
QtConcurrent::map(list, multiplyBy2Immutable).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2Immutable).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
// lambda
QtConcurrent::map(list, [](int x){x *= 2;}).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::map(list.begin(), list.end(), [](int x){x *= 2;}).waitForFinished();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
// Linked lists and forward iterators
{
QLinkedList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::map(list, MultiplyBy2InPlace()).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 2 << 4 << 6);
QtConcurrent::map(list.begin(), list.end(), MultiplyBy2InPlace()).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 4 << 8 << 12);
// function
QtConcurrent::map(list, multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 8 << 16 << 24);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 16 << 32 << 48);
// bound function
QtConcurrent::map(list, multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 32 << 64 << 96);
QtConcurrent::map(list.begin(), list.end(), multiplyBy2InPlace).waitForFinished();
QCOMPARE(list, QLinkedList<int>() << 64 << 128 << 192);
// member function
QLinkedList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::map(numberList, &Number::multiplyBy2).waitForFinished();
QCOMPARE(numberList, QLinkedList<Number>() << 2 << 4 << 6);
QtConcurrent::map(numberList.begin(), numberList.end(), &Number::multiplyBy2).waitForFinished();
QCOMPARE(numberList, QLinkedList<Number>() << 4 << 8 << 12);
}
QT_WARNING_POP
#endif
#if 0
// not allowed: map() with immutable sequences makes no sense
{
const QList<int> list = QList<int>() << 1 << 2 << 3;
QtConcurrent::map(list, MultiplyBy2Immutable());
QtConcurrent::map(list, multiplyBy2Immutable);
QtConcurrent::map(list, multiplyBy2Immutable);
}
#endif
#if 0
// not allowed: in place modification of a temp copy (since temp copy goes out of scope)
{
QList<int> list;
list << 1 << 2 << 3;
QtConcurrent::map(QList<int>(list), MultiplyBy2InPlace());
QtConcurrent::map(QList<int>(list), multiplyBy2);
QtConcurrent::map(QList<int>(list), multiplyBy2InPlace);
QList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::map(QList<Number>(numberList), &Number::multiplyBy2);
}
#endif
#if 0
// not allowed: map() on a const list, where functors try to modify the items in the list
{
const QList<int> list = QList<int>() << 1 << 2 << 3;;
QtConcurrent::map(list, MultiplyBy2InPlace());
QtConcurrent::map(list, multiplyBy2InPlace);
QtConcurrent::map(list, multiplyBy2InPlace);
const QList<Number> numberList = QList<Number>() << 1 << 2 << 3;
QtConcurrent::map(numberList, &Number::multiplyBy2);
}
#endif
}
void tst_QtConcurrentMap::blocking_map()
{
// functors take arguments by reference, modifying the sequence in place
{
QList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::blockingMap(list, MultiplyBy2InPlace());
QCOMPARE(list, QList<int>() << 2 << 4 << 6);
QtConcurrent::blockingMap(list.begin(), list.end(), MultiplyBy2InPlace());
QCOMPARE(list, QList<int>() << 4 << 8 << 12);
// function
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
QCOMPARE(list, QList<int>() << 8 << 16 << 24);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2InPlace);
QCOMPARE(list, QList<int>() << 16 << 32 << 48);
// bound function
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
QCOMPARE(list, QList<int>() << 32 << 64 << 96);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2InPlace);
QCOMPARE(list, QList<int>() << 64 << 128 << 192);
// member function
QList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::blockingMap(numberList, &Number::multiplyBy2);
QCOMPARE(numberList, QList<Number>() << 2 << 4 << 6);
QtConcurrent::blockingMap(numberList.begin(), numberList.end(), &Number::multiplyBy2);
QCOMPARE(numberList, QList<Number>() << 4 << 8 << 12);
}
// functors don't take arguments by reference, making these no-ops
{
QList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::blockingMap(list, MultiplyBy2Immutable());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::blockingMap(list.begin(), list.end(), MultiplyBy2Immutable());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
// function
QtConcurrent::blockingMap(list, multiplyBy2Immutable);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2Immutable);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
// bound function
QtConcurrent::blockingMap(list, multiplyBy2Immutable);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2Immutable);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
// Linked lists and forward iterators
{
QLinkedList<int> list;
list << 1 << 2 << 3;
// functor
QtConcurrent::blockingMap(list, MultiplyBy2InPlace());
QCOMPARE(list, QLinkedList<int>() << 2 << 4 << 6);
QtConcurrent::blockingMap(list.begin(), list.end(), MultiplyBy2InPlace());
QCOMPARE(list, QLinkedList<int>() << 4 << 8 << 12);
// function
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
QCOMPARE(list, QLinkedList<int>() << 8 << 16 << 24);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2InPlace);
QCOMPARE(list, QLinkedList<int>() << 16 << 32 << 48);
// bound function
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
QCOMPARE(list, QLinkedList<int>() << 32 << 64 << 96);
QtConcurrent::blockingMap(list.begin(), list.end(), multiplyBy2InPlace);
QCOMPARE(list, QLinkedList<int>() << 64 << 128 << 192);
// member function
QLinkedList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::blockingMap(numberList, &Number::multiplyBy2);
QCOMPARE(numberList, QLinkedList<Number>() << 2 << 4 << 6);
QtConcurrent::blockingMap(numberList.begin(), numberList.end(), &Number::multiplyBy2);
QCOMPARE(numberList, QLinkedList<Number>() << 4 << 8 << 12);
}
QT_WARNING_POP
#endif
#if 0
// not allowed: map() with immutable sequences makes no sense
{
const QList<int> list = QList<int>() << 1 << 2 << 3;
QtConcurrent::blockingMap(list, MultiplyBy2Immutable());
QtConcurrent::blockkng::map(list, multiplyBy2Immutable);
QtConcurrent::blockingMap(list, multiplyBy2Immutable);
}
#endif
#if 0
// not allowed: in place modification of a temp copy (since temp copy goes out of scope)
{
QList<int> list;
list << 1 << 2 << 3;
QtConcurrent::blockingMap(QList<int>(list), MultiplyBy2InPlace());
QtConcurrent::blockingMap(QList<int>(list), multiplyBy2);
QtConcurrent::blockingMap(QList<int>(list), multiplyBy2InPlace);
QList<Number> numberList;
numberList << 1 << 2 << 3;
QtConcurrent::blockingMap(QList<Number>(numberList), &Number::multiplyBy2);
}
#endif
#if 0
// not allowed: map() on a const list, where functors try to modify the items in the list
{
const QList<int> list = QList<int>() << 1 << 2 << 3;;
QtConcurrent::blockingMap(list, MultiplyBy2InPlace());
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
QtConcurrent::blockingMap(list, multiplyBy2InPlace);
const QList<Number> numberList = QList<Number>() << 1 << 2 << 3;
QtConcurrent::blockingMap(numberList, &Number::multiplyBy2);
}
#endif
}
int multiplyBy2(int x)
{
int y = x * 2;
return y;
}
class MultiplyBy2
{
public:
typedef int result_type;
int operator()(int x) const
{
int y = x * 2;
return y;
}
};
double intToDouble(int x)
{
return double(x);
}
class IntToDouble
{
public:
typedef double result_type;
double operator()(int x) const
{
return double(x);
}
};
int stringToInt(const QString &string)
{
return string.toInt();
}
class StringToInt
{
public:
typedef int result_type;
int operator()(const QString &string) const
{
return string.toInt();
}
};
void tst_QtConcurrentMap::mapped()
{
QList<int> list;
list << 1 << 2 << 3;
QList<Number> numberList;
numberList << 1 << 2 << 3;
// functor
{
QList<int> list2 = QtConcurrent::mapped(list, MultiplyBy2()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
MultiplyBy2()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::mapped(QList<int>(list), MultiplyBy2()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// function
{
QList<int> list2 = QtConcurrent::mapped(list, multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::mapped(QList<int>(list), multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// bound function
{
QList<int> list2 = QtConcurrent::mapped(list, multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::mapped(QList<int>(list), multiplyBy2).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// const member function
{
QList<Number> numberList2 = QtConcurrent::mapped(numberList, &Number::multipliedBy2)
.results();
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList2, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList3 = QtConcurrent::mapped(numberList.constBegin(),
numberList.constEnd(),
&Number::multipliedBy2)
.results();
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList3, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList4 = QtConcurrent::mapped(QList<Number>(numberList),
&Number::multipliedBy2)
.results();
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList4, QList<Number>() << 2 << 4 << 6);
}
// change the value_type, same container
// functor
{
QList<double> list2 = QtConcurrent::mapped(list, IntToDouble()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
IntToDouble())
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QList<int>(list),
IntToDouble())
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// function
{
QList<double> list2 = QtConcurrent::mapped(list, intToDouble).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
intToDouble)
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QList<int>(list), intToDouble).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// bound function
{
QList<double> list2 = QtConcurrent::mapped(list, intToDouble).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(list.constBegin(),
list.constEnd(),
intToDouble)
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QList<int>(list),
intToDouble)
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// const member function
{
QList<QString> list2 = QtConcurrent::mapped(numberList, &Number::toString).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<QString>() << "1" << "2" << "3");
QList<QString> list3 = QtConcurrent::mapped(numberList.constBegin(),
numberList.constEnd(),
&Number::toString)
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<QString>() << "1" << "2" << "3");
QList<QString> list4 = QtConcurrent::mapped(QList<Number>(numberList), &Number::toString)
.results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<QString>() << "1" << "2" << "3");
}
// change the value_type
{
QList<QString> strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::mapped(strings, StringToInt()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::mapped(strings.constBegin(),
strings.constEnd(),
StringToInt())
.results();
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QList<QString> strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::mapped(strings, stringToInt).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::mapped(strings.constBegin(),
strings.constEnd(),
stringToInt).results();
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QList<int> numberList2 = QtConcurrent::mapped(numberList, &Number::toInt).results();
QCOMPARE(numberList2, QList<int>() << 1 << 2 << 3);
QList<int> numberList3 = QtConcurrent::mapped(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt)
.results();
QCOMPARE(numberList3, QList<int>() << 1 << 2 << 3);
}
// change the value_type from QStringList
{
QStringList strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::mapped(strings, StringToInt()).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::mapped(strings.constBegin(),
strings.constEnd(),
StringToInt())
.results();
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QStringList strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::mapped(strings, stringToInt).results();
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::mapped(strings.constBegin(),
strings.constEnd(),
stringToInt)
.results();
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
QLinkedList<int> linkedList;
linkedList << 1 << 2 << 3;
QLinkedList<Number> numberLinkedList;
numberLinkedList << 1 << 2 << 3;
// functor
{
QList<int> list2 = QtConcurrent::mapped(linkedList, MultiplyBy2()).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
MultiplyBy2()).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 =
QtConcurrent::mapped(QLinkedList<int>(linkedList), MultiplyBy2()).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// function
{
QList<int> list2 = QtConcurrent::mapped(linkedList, multiplyBy2).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
multiplyBy2).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 =
QtConcurrent::mapped(QLinkedList<int>(linkedList), multiplyBy2).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// bound function
{
QList<int> list2 = QtConcurrent::mapped(linkedList, multiplyBy2).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
multiplyBy2)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::mapped(QLinkedList<int>(linkedList), multiplyBy2)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// const member function
{
QList<Number> numberList2 = QtConcurrent::mapped(numberLinkedList, &Number::multipliedBy2)
.results();
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList2, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList3 = QtConcurrent::mapped(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::multipliedBy2)
.results();
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList3, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList4 = QtConcurrent::mapped(QLinkedList<Number>(numberLinkedList),
&Number::multipliedBy2)
.results();
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList4, QList<Number>() << 2 << 4 << 6);
}
// change the value_type, same container
// functor
{
QList<double> list2 = QtConcurrent::mapped(linkedList, IntToDouble()).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
IntToDouble())
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QLinkedList<int>(linkedList),
IntToDouble())
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// function
{
QList<double> list2 = QtConcurrent::mapped(linkedList, intToDouble).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
intToDouble)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QLinkedList<int>(linkedList), intToDouble)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// bound function
{
QList<double> list2 = QtConcurrent::mapped(linkedList, intToDouble).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::mapped(linkedList.constBegin(),
linkedList.constEnd(),
intToDouble)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::mapped(QLinkedList<int>(linkedList),
intToDouble)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// const member function
{
QList<QString> list2 = QtConcurrent::mapped(numberLinkedList, &Number::toString).results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<QString>() << "1" << "2" << "3");
QList<QString> list3 = QtConcurrent::mapped(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toString)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<QString>() << "1" << "2" << "3");
QList<QString> list4 = QtConcurrent::mapped(QLinkedList<Number>(numberLinkedList),
&Number::toString)
.results();
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<QString>() << "1" << "2" << "3");
}
QT_WARNING_POP
#endif
}
void tst_QtConcurrentMap::blocking_mapped()
{
QList<int> list;
list << 1 << 2 << 3;
QList<Number> numberList;
numberList << 1 << 2 << 3;
// functor
{
QList<int> list2 = QtConcurrent::blockingMapped(list, MultiplyBy2());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::blockingMapped<QList<int> >(list.constBegin(),
list.constEnd(),
MultiplyBy2());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::blockingMapped(QList<int>(list), MultiplyBy2());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// function
{
QList<int> list2 = QtConcurrent::blockingMapped(list, multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::blockingMapped<QList<int> >(list.constBegin(),
list.constEnd(),
multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::blockingMapped(QList<int>(list), multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// bound function
{
QList<int> list2 = QtConcurrent::blockingMapped(list, multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 2 << 4 << 6);
QList<int> list3 = QtConcurrent::blockingMapped<QList<int> >(list.constBegin(),
list.constEnd(),
multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 2 << 4 << 6);
QList<int> list4 = QtConcurrent::blockingMapped(QList<int>(list), multiplyBy2);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 2 << 4 << 6);
}
// const member function
{
QList<Number> numberList2 = QtConcurrent::blockingMapped(numberList, &Number::multipliedBy2);
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList2, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList3 = QtConcurrent::blockingMapped<QList<Number> >(numberList.constBegin(),
numberList.constEnd(),
&Number::multipliedBy2);
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList3, QList<Number>() << 2 << 4 << 6);
QList<Number> numberList4 = QtConcurrent::blockingMapped(QList<Number>(numberList),
&Number::multipliedBy2);
QCOMPARE(numberList, QList<Number>() << 1 << 2 << 3);
QCOMPARE(numberList4, QList<Number>() << 2 << 4 << 6);
}
// change the value_type, same container
// functor
{
QList<double> list2 = QtConcurrent::blockingMapped<QList<double> >(list, IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::blockingMapped<QList<double> >(list.constBegin(),
list.constEnd(),
IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::blockingMapped<QList<double> >(QList<int>(list),
IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// function
{
QList<double> list2 = QtConcurrent::blockingMapped<QList<double> >(list, intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::blockingMapped<QList<double> >(list.constBegin(),
list.constEnd(),
intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::blockingMapped<QList<double> >(QList<int>(list), intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// bound function
{
QList<double> list2 = QtConcurrent::blockingMapped<QList<double> >(list, intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list3 = QtConcurrent::blockingMapped<QList<double> >(list.constBegin(),
list.constEnd(),
intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<double>() << 1.0 << 2.0 << 3.0);
QList<double> list4 = QtConcurrent::blockingMapped<QList<double> >(QList<int>(list),
intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<double>() << 1.0 << 2.0 << 3.0);
}
// const member function
{
QList<QString> list2 =
QtConcurrent::blockingMapped<QList<QString> >(numberList, &Number::toString);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<QString>() << "1" << "2" << "3");
QList<QString> list3 = QtConcurrent::blockingMapped<QList<QString> >(numberList.constBegin(),
numberList.constEnd()
, &Number::toString);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<QString>() << "1" << "2" << "3");
QList<QString> list4 =
QtConcurrent::blockingMapped<QList<QString> >(QList<Number>(numberList), &Number::toString);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<QString>() << "1" << "2" << "3");
}
// change the value_type
{
QList<QString> strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::blockingMapped(strings, StringToInt());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::blockingMapped<QList<int> >(strings.constBegin(),
strings.constEnd(),
StringToInt());
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QList<QString> strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::blockingMapped(strings, stringToInt);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::blockingMapped<QList<int> >(strings.constBegin(),
strings.constEnd(),
stringToInt);
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QList<int> numberList2 = QtConcurrent::blockingMapped(numberList, &Number::toInt);
QCOMPARE(numberList2, QList<int>() << 1 << 2 << 3);
QList<int> numberList3 = QtConcurrent::blockingMapped<QList<int> >(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt);
QCOMPARE(numberList3, QList<int>() << 1 << 2 << 3);
}
// change the value_type from QStringList
{
QStringList strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::blockingMapped(strings, StringToInt());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::blockingMapped<QList<int> >(strings.constBegin(),
strings.constEnd(),
StringToInt());
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
{
QStringList strings = QStringList() << "1" << "2" << "3";
QList<int> list = QtConcurrent::blockingMapped(strings, stringToInt);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QList<int> list2 = QtConcurrent::blockingMapped<QList<int> >(strings.constBegin(),
strings.constEnd(),
stringToInt);
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
}
// functor
{
QVector<double> list2 = QtConcurrent::blockingMapped<QVector<double> >(list, IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QVector<double>() << 1.0 << 2.0 << 3.0);
QVector<double> list3 = QtConcurrent::blockingMapped<QVector<double> >(list.constBegin(),
list.constEnd(),
IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QVector<double>() << 1.0 << 2.0 << 3.0);
QVector<double> list4 = QtConcurrent::blockingMapped<QVector<double> >(QList<int>(list),
IntToDouble());
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QVector<double>() << 1.0 << 2.0 << 3.0);
QStringList strings = QStringList() << "1" << "2" << "3";
QVector<int> list5 = QtConcurrent::blockingMapped<QVector<int> >(strings, StringToInt());
QCOMPARE(list5, QVector<int>() << 1 << 2 << 3);
QVector<int> list6 = QtConcurrent::blockingMapped<QVector<int> >(strings.constBegin(),
strings.constEnd(),
StringToInt());
QCOMPARE(list6, QVector<int>() << 1 << 2 << 3);
QVector<int> list7 = QtConcurrent::blockingMapped<QVector<int> >(QStringList(strings),
StringToInt());
QCOMPARE(list7, QVector<int>() << 1 << 2 << 3);
}
// function
{
QVector<double> list2 = QtConcurrent::blockingMapped<QVector<double> >(list, intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QVector<double>() << 1.0 << 2.0 << 3.0);
QVector<double> list3 = QtConcurrent::blockingMapped<QVector<double> >(list.constBegin(),
list.constEnd(),
intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QVector<double>() << 1.0 << 2.0 << 3.0);
QVector<double> list4 = QtConcurrent::blockingMapped<QVector<double> >(QList<int>(list),
intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QVector<double>() << 1.0 << 2.0 << 3.0);
QStringList strings = QStringList() << "1" << "2" << "3";
QVector<int> list5 = QtConcurrent::blockingMapped<QVector<int> >(strings, stringToInt);
QCOMPARE(list5, QVector<int>() << 1 << 2 << 3);
QVector<int> list6 = QtConcurrent::blockingMapped<QVector<int> >(strings.constBegin(),
strings.constEnd(),
stringToInt);
QCOMPARE(list6, QVector<int>() << 1 << 2 << 3);
QVector<int> list7 = QtConcurrent::blockingMapped<QVector<int> >(QStringList(strings),
stringToInt);
QCOMPARE(list7, QVector<int>() << 1 << 2 << 3);
}
// bound function
{
QVector<double> list2 = QtConcurrent::blockingMapped<QVector<double> >(list, intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QVector<double>() << 1.0 << 2.0 << 3.0);
QVector<double> list3 = QtConcurrent::blockingMapped<QVector<double> >(QList<int>(list), intToDouble);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QVector<double>() << 1.0 << 2.0 << 3.0);
QStringList strings = QStringList() << "1" << "2" << "3";
QVector<int> list4 = QtConcurrent::blockingMapped<QVector<int> >(strings, stringToInt);
QCOMPARE(list4, QVector<int>() << 1 << 2 << 3);
QVector<int> list5 = QtConcurrent::blockingMapped<QVector<int> >(QStringList(strings), stringToInt);
QCOMPARE(list5, QVector<int>() << 1 << 2 << 3);
}
// const member function
{
QVector<QString> list2 = QtConcurrent::blockingMapped<QVector<QString> >(numberList, &Number::toString);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QVector<QString>() << "1" << "2" << "3");
QVector<QString> list3 =
QtConcurrent::blockingMapped<QVector<QString> >(QList<Number>(numberList), &Number::toString);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QVector<QString>() << "1" << "2" << "3");
// not allowed: const member function where all arguments have default values
#if 0
QStringList strings = QStringList() << "1" << "2" << "3";
QVector<int> list4 = QtConcurrent::blockingMapped<QVector<int> >(strings, &QString::toInt);
QCOMPARE(list4, QVector<int>() << 1 << 2 << 3);
QVector<int> list5 = QtConcurrent::blockingMapped<QVector<int> >(QStringList(strings), &QString::toInt);
QCOMPARE(list5, QVector<int>() << 1 << 2 << 3);
#endif
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
QLinkedList<int> linkedList;
linkedList << 1 << 2 << 3;
QLinkedList<Number> numberLinkedList;
numberLinkedList << 1 << 2 << 3;
// functor
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMapped(linkedList, MultiplyBy2());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<int> >(linkedList.constBegin(),
linkedList.constEnd(),
MultiplyBy2());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMapped(QLinkedList<int>(linkedList), MultiplyBy2());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 2 << 4 << 6);
}
// function
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMapped(linkedList, multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<int> >(linkedList.constBegin(),
linkedList.constEnd(),
multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMapped(QLinkedList<int>(linkedList), multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 2 << 4 << 6);
}
// bound function
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMapped(linkedList, multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<int> >(linkedList.constBegin(),
linkedList.constEnd(),
multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 2 << 4 << 6);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMapped(QLinkedList<int>(linkedList), multiplyBy2);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 2 << 4 << 6);
}
// const member function
{
QLinkedList<Number> numberLinkedList2 = QtConcurrent::blockingMapped(numberLinkedList, &Number::multipliedBy2);
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberLinkedList2, QLinkedList<Number>() << 2 << 4 << 6);
QLinkedList<Number> numberLinkedList3 = QtConcurrent::blockingMapped<QLinkedList<Number> >(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::multipliedBy2);
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberLinkedList3, QLinkedList<Number>() << 2 << 4 << 6);
QLinkedList<Number> numberLinkedList4 = QtConcurrent::blockingMapped(QLinkedList<Number>(numberLinkedList),
&Number::multipliedBy2);
QCOMPARE(numberLinkedList, QLinkedList<Number>() << 1 << 2 << 3);
QCOMPARE(numberLinkedList4, QLinkedList<Number>() << 2 << 4 << 6);
}
// change the value_type, same container
// functor
{
QLinkedList<double> linkedList2 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList, IntToDouble());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList.constBegin(),
linkedList.constEnd(),
IntToDouble());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList4 = QtConcurrent::blockingMapped<QLinkedList<double> >(QLinkedList<int>(linkedList),
IntToDouble());
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
}
// function
{
QLinkedList<double> linkedList2 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList, intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList.constBegin(),
linkedList.constEnd(),
intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList4 = QtConcurrent::blockingMapped<QLinkedList<double> >(QLinkedList<int>(linkedList), intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
}
// bound function
{
QLinkedList<double> linkedList2 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList, intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<double> >(linkedList.constBegin(),
linkedList.constEnd(),
intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
QLinkedList<double> linkedList4 = QtConcurrent::blockingMapped<QLinkedList<double> >(QLinkedList<int>(linkedList),
intToDouble);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<double>() << 1.0 << 2.0 << 3.0);
}
// const member function
{
QLinkedList<QString> linkedList2 =
QtConcurrent::blockingMapped<QLinkedList<QString> >(numberLinkedList, &Number::toString);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<QString>() << "1" << "2" << "3");
QLinkedList<QString> linkedList3 = QtConcurrent::blockingMapped<QLinkedList<QString> >(numberLinkedList.constBegin(),
numberLinkedList.constEnd()
, &Number::toString);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<QString>() << "1" << "2" << "3");
QLinkedList<QString> linkedList4 =
QtConcurrent::blockingMapped<QLinkedList<QString> >(QLinkedList<Number>(numberLinkedList), &Number::toString);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<QString>() << "1" << "2" << "3");
}
QT_WARNING_POP
#endif
}
int intSquare(int x)
{
return x * x;
}
class IntSquare
{
public:
typedef int result_type;
int operator()(int x)
{
return x * x;
}
};
void tst_QtConcurrentMap::mappedReduced()
{
QList<int> list;
list << 1 << 2 << 3;
QList<Number> numberList;
numberList << 1 << 2 << 3;
// test Q_DECLARE_OPERATORS_FOR_FLAGS
QtConcurrent::ReduceOptions opt = (QtConcurrent::UnorderedReduce | QtConcurrent::SequentialReduce);
QVERIFY(opt);
// functor-functor
{
int sum = QtConcurrent::mappedReduced<int>(list, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced<int>(list.constBegin(),
list.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced<int>(QList<int>(list), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::mappedReduced<int>(list, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::mappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::mappedReduced<int>(QList<int>(list),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
// function-functor
{
int sum = QtConcurrent::mappedReduced<int>(list, intSquare, IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced<int>(QList<int>(list), intSquare, IntSumReduce());
QCOMPARE(sum3, 14);
}
// functor-function
{
int sum = QtConcurrent::mappedReduced(list, IntSquare(), intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced(list.constBegin(),
list.constEnd(),
IntSquare(),
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced(QList<int>(list), IntSquare(), intSumReduce);
QCOMPARE(sum3, 14);
}
// function-function
{
int sum = QtConcurrent::mappedReduced(list, intSquare, intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced(QList<int>(list), intSquare, intSumReduce);
QCOMPARE(sum3, 14);
}
// functor-member
{
QList<int> list2 = QtConcurrent::mappedReduced(list,
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 1 << 4 << 9);
QList<int> list3 = QtConcurrent::mappedReduced(list.constBegin(),
list.constEnd(),
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 1 << 4 << 9);
QList<int> list4 = QtConcurrent::mappedReduced(QList<int>(list),
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 1 << 4 << 9);
}
// member-functor
{
int sum = QtConcurrent::mappedReduced<int>(numberList, &Number::toInt, IntSumReduce());
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::mappedReduced<int>(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::mappedReduced<int>(QList<Number>(numberList),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum3, 6);
}
// member-member
{
QList<int> list2 = QtConcurrent::mappedReduced(numberList,
&Number::toInt,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
QList<int> list3 = QtConcurrent::mappedReduced(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list3, QList<int>() << 1 << 2 << 3);
QList<int> list4 = QtConcurrent::mappedReduced(QList<Number>(numberList),
&Number::toInt,
&QList<int>::push_back, OrderedReduce);
QCOMPARE(list4, QList<int>() << 1 << 2 << 3);
}
// function-member
{
QList<int> list2 = QtConcurrent::mappedReduced(list,
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 1 << 4 << 9);
QList<int> list3 = QtConcurrent::mappedReduced(list.constBegin(),
list.constEnd(),
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 1 << 4 << 9);
QList<int> list4 = QtConcurrent::mappedReduced(QList<int>(list),
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 1 << 4 << 9);
}
// member-function
{
int sum = QtConcurrent::mappedReduced(numberList,
&Number::toInt,
intSumReduce);
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::mappedReduced(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
intSumReduce);
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::mappedReduced(QList<Number>(numberList),
&Number::toInt,
intSumReduce);
QCOMPARE(sum3, 6);
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
QLinkedList<int> linkedList;
linkedList << 1 << 2 << 3;
QLinkedList<Number> numberLinkedList;
numberLinkedList << 1 << 2 << 3;
// functor-functor
{
int sum = QtConcurrent::mappedReduced<int>(linkedList, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced<int>(QLinkedList<int>(linkedList), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::mappedReduced<int>(linkedList, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::mappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::mappedReduced<int>(QLinkedList<int>(linkedList),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
// function-functor
{
int sum = QtConcurrent::mappedReduced<int>(linkedList, intSquare, IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced<int>(QLinkedList<int>(linkedList), intSquare, IntSumReduce());
QCOMPARE(sum3, 14);
}
// functor-function
{
int sum = QtConcurrent::mappedReduced(linkedList, IntSquare(), intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced(QLinkedList<int>(linkedList), IntSquare(), intSumReduce);
QCOMPARE(sum3, 14);
}
// function-function
{
int sum = QtConcurrent::mappedReduced(linkedList, intSquare, intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced(QLinkedList<int>(linkedList), intSquare, intSumReduce);
QCOMPARE(sum3, 14);
}
// functor-member
{
QLinkedList<int> linkedList2 = QtConcurrent::mappedReduced(linkedList,
IntSquare(),
&QLinkedList<int>::push_back,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList3 = QtConcurrent::mappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
&QLinkedList<int>::push_back,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList4 = QtConcurrent::mappedReduced(QLinkedList<int>(linkedList),
IntSquare(),
&QLinkedList<int>::push_back,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 4 << 9);
}
// member-functor
{
int sum = QtConcurrent::mappedReduced<int>(numberLinkedList, &Number::toInt, IntSumReduce());
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::mappedReduced<int>(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::mappedReduced<int>(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum3, 6);
}
// member-member
{
QLinkedList<int> linkedList2 = QtConcurrent::mappedReduced(numberLinkedList,
&Number::toInt,
&QLinkedList<int>::push_back,
OrderedReduce);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 2 << 3);
QLinkedList<int> linkedList3 = QtConcurrent::mappedReduced(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
&QLinkedList<int>::push_back,
OrderedReduce);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 2 << 3);
QLinkedList<int> linkedList4 = QtConcurrent::mappedReduced(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
&QLinkedList<int>::push_back, OrderedReduce);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 2 << 3);
}
// function-member
{
QLinkedList<int> linkedList2 = QtConcurrent::mappedReduced(linkedList,
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList3 = QtConcurrent::mappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList4 = QtConcurrent::mappedReduced(QLinkedList<int>(linkedList),
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 4 << 9);
}
// member-function
{
int sum = QtConcurrent::mappedReduced(numberLinkedList,
&Number::toInt,
intSumReduce);
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::mappedReduced(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
intSumReduce);
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::mappedReduced(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
intSumReduce);
QCOMPARE(sum3, 6);
}
// linked lists
{
QLinkedList<int> list;
list << 1 << 2 << 3;
QLinkedList<Number> numberList;
numberList << 1 << 2 << 3;
int sum = QtConcurrent::mappedReduced<int>(list, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::mappedReduced<int>(list.constBegin(),
list.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::mappedReduced<int>(QLinkedList<int>(list), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::mappedReduced<int>(list, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::mappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::mappedReduced<int>(QLinkedList<int>(list),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
QT_WARNING_POP
#endif
// ### the same as above, with an initial result value
}
void tst_QtConcurrentMap::blocking_mappedReduced()
{
QList<int> list;
list << 1 << 2 << 3;
QList<Number> numberList;
numberList << 1 << 2 << 3;
// functor-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(list, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced<int>(list.constBegin(),
list.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QList<int>(list), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::blockingMappedReduced<int>(list, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::blockingMappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::blockingMappedReduced<int>(QList<int>(list),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
// function-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(list, intSquare, IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QList<int>(list), intSquare, IntSumReduce());
QCOMPARE(sum3, 14);
}
// functor-function
{
int sum = QtConcurrent::blockingMappedReduced(list, IntSquare(), intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced(list.constBegin(),
list.constEnd(),
IntSquare(),
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced(QList<int>(list), IntSquare(), intSumReduce);
QCOMPARE(sum3, 14);
}
// function-function
{
int sum = QtConcurrent::blockingMappedReduced(list, intSquare, intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced(QList<int>(list), intSquare, intSumReduce);
QCOMPARE(sum3, 14);
}
// functor-member
{
QList<int> list2 = QtConcurrent::blockingMappedReduced(list,
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 1 << 4 << 9);
QList<int> list3 = QtConcurrent::blockingMappedReduced(list.constBegin(),
list.constEnd(),
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 1 << 4 << 9);
QList<int> list4 = QtConcurrent::blockingMappedReduced(QList<int>(list),
IntSquare(),
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 1 << 4 << 9);
}
// member-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(numberList, &Number::toInt,
IntSumReduce());
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::blockingMappedReduced<int>(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QList<Number>(numberList),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum3, 6);
}
// member-member
{
QList<int> list2 = QtConcurrent::blockingMappedReduced(numberList,
&Number::toInt,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list2, QList<int>() << 1 << 2 << 3);
QList<int> list3 = QtConcurrent::blockingMappedReduced(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list3, QList<int>() << 1 << 2 << 3);
QList<int> list4 = QtConcurrent::blockingMappedReduced(QList<Number>(numberList),
&Number::toInt,
&QList<int>::push_back, OrderedReduce);
QCOMPARE(list4, QList<int>() << 1 << 2 << 3);
}
// function-member
{
QList<int> list2 = QtConcurrent::blockingMappedReduced(list,
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list2, QList<int>() << 1 << 4 << 9);
QList<int> list3 = QtConcurrent::blockingMappedReduced(list.constBegin(),
list.constEnd(),
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list3, QList<int>() << 1 << 4 << 9);
QList<int> list4 = QtConcurrent::blockingMappedReduced(QList<int>(list),
intSquare,
&QList<int>::push_back,
OrderedReduce);
QCOMPARE(list, QList<int>() << 1 << 2 << 3);
QCOMPARE(list4, QList<int>() << 1 << 4 << 9);
}
// member-function
{
int sum = QtConcurrent::blockingMappedReduced(numberList,
&Number::toInt,
intSumReduce);
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::blockingMappedReduced(numberList.constBegin(),
numberList.constEnd(),
&Number::toInt,
intSumReduce);
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::blockingMappedReduced(QList<Number>(numberList),
&Number::toInt,
intSumReduce);
QCOMPARE(sum3, 6);
}
#if QT_DEPRECATED_SINCE(5, 15)
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
QLinkedList<int> linkedList;
linkedList << 1 << 2 << 3;
QLinkedList<Number> numberLinkedList;
numberLinkedList << 1 << 2 << 3;
// functor-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(linkedList, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<int>(linkedList), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::blockingMappedReduced<int>(linkedList, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::blockingMappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<int>(linkedList),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
// function-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(linkedList, intSquare, IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced<int>(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<int>(linkedList), intSquare, IntSumReduce());
QCOMPARE(sum3, 14);
}
// functor-function
{
int sum = QtConcurrent::blockingMappedReduced(linkedList, IntSquare(), intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced(QLinkedList<int>(linkedList), IntSquare(), intSumReduce);
QCOMPARE(sum3, 14);
}
// function-function
{
int sum = QtConcurrent::blockingMappedReduced(linkedList, intSquare, intSumReduce);
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced(QLinkedList<int>(linkedList), intSquare, intSumReduce);
QCOMPARE(sum3, 14);
}
// functor-member
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMappedReduced(linkedList,
IntSquare(),
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
IntSquare(),
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMappedReduced(QLinkedList<int>(linkedList),
IntSquare(),
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 4 << 9);
}
// member-functor
{
int sum = QtConcurrent::blockingMappedReduced<int>(numberLinkedList, &Number::toInt, IntSumReduce());
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::blockingMappedReduced<int>(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
IntSumReduce());
QCOMPARE(sum3, 6);
}
// member-member
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMappedReduced(numberLinkedList,
&Number::toInt,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 2 << 3);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMappedReduced(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 2 << 3);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMappedReduced(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
&QLinkedList<int>::append, OrderedReduce);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 2 << 3);
}
// function-member
{
QLinkedList<int> linkedList2 = QtConcurrent::blockingMappedReduced(linkedList,
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList2, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList3 = QtConcurrent::blockingMappedReduced(linkedList.constBegin(),
linkedList.constEnd(),
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList3, QLinkedList<int>() << 1 << 4 << 9);
QLinkedList<int> linkedList4 = QtConcurrent::blockingMappedReduced(QLinkedList<int>(linkedList),
intSquare,
&QLinkedList<int>::append,
OrderedReduce);
QCOMPARE(linkedList, QLinkedList<int>() << 1 << 2 << 3);
QCOMPARE(linkedList4, QLinkedList<int>() << 1 << 4 << 9);
}
// member-function
{
int sum = QtConcurrent::blockingMappedReduced(numberLinkedList,
&Number::toInt,
intSumReduce);
QCOMPARE(sum, 6);
int sum2 = QtConcurrent::blockingMappedReduced(numberLinkedList.constBegin(),
numberLinkedList.constEnd(),
&Number::toInt,
intSumReduce);
QCOMPARE(sum2, 6);
int sum3 = QtConcurrent::blockingMappedReduced(QLinkedList<Number>(numberLinkedList),
&Number::toInt,
intSumReduce);
QCOMPARE(sum3, 6);
}
// linked lists
{
QLinkedList<int> list;
list << 1 << 2 << 3;
QLinkedList<Number> numberList;
numberList << 1 << 2 << 3;
int sum = QtConcurrent::blockingMappedReduced<int>(list, IntSquare(), IntSumReduce());
QCOMPARE(sum, 14);
int sum2 = QtConcurrent::blockingMappedReduced<int>(list.constBegin(),
list.constEnd(),
IntSquare(),
IntSumReduce());
QCOMPARE(sum2, 14);
int sum3 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<int>(list), IntSquare(), IntSumReduce());
QCOMPARE(sum3, 14);
int sum4 = QtConcurrent::blockingMappedReduced<int>(list, intSquare, intSumReduce);
QCOMPARE(sum4, 14);
int sum5 = QtConcurrent::blockingMappedReduced<int>(list.constBegin(),
list.constEnd(),
intSquare,
intSumReduce);
QCOMPARE(sum5, 14);
int sum6 = QtConcurrent::blockingMappedReduced<int>(QLinkedList<int>(list),
intSquare,
intSumReduce);
QCOMPARE(sum6, 14);
}
QT_WARNING_POP
#endif
// ### the same as above, with an initial result value
}
int sleeper(int val)
{
QTest::qSleep(100);
return val;
}
void tst_QtConcurrentMap::assignResult()
{
const QList<int> startList = QList<int>() << 0 << 1 << 2;
QList<int> list = QtConcurrent::blockingMapped(startList, sleeper);
QCOMPARE(list.at(0), 0);
QCOMPARE(list.at(1), 1);
}
int fnConst(const int &i)
{
return i;
}
int fn(int &i)
{
return i;
}
int fnConstNoExcept(const int &i) noexcept
{
return i;
}
int fnNoExcept(int &i) noexcept
{
return i;
}
QString changeTypeConst(const int &)
{
return QString();
}
QString changeType(int &)
{
return QString();
}
QString changeTypeConstNoExcept(const int &) noexcept
{
return QString();
}
QString changeTypeNoExcept(int &) noexcept
{
return QString();
}
int changeTypeQStringListConst(const QStringList &)
{
return 0;
}
int changeTypeQStringList(QStringList &)
{
return 0;
}
int changeTypeQStringListConstNoExcept(const QStringList &) noexcept
{
return 0;
}
int changeTypeQStringListNoExcept(QStringList &) noexcept
{
return 0;
}
class MemFnTester
{
public:
MemFnTester() {}
MemFnTester fn()
{
return MemFnTester();
}
MemFnTester fnConst() const
{
return MemFnTester();
}
QString changeType()
{
return QString();
}
QString changeTypeConst() const
{
return QString();
}
MemFnTester fnNoExcept() noexcept
{
return MemFnTester();
}
MemFnTester fnConstNoExcept() const noexcept
{
return MemFnTester();
}
QString changeTypeNoExcept() noexcept
{
return QString();
}
QString changeTypeConstNoExcept() const noexcept
{
return QString();
}
};
Q_DECLARE_METATYPE(QVector<MemFnTester>);
Q_DECLARE_METATYPE(QList<MemFnTester>);
void tst_QtConcurrentMap::functionOverloads()
{
QList<int> intList;
const QList<int> constIntList;
QList<MemFnTester> classList;
const QList<MemFnTester> constMemFnTesterList;
QtConcurrent::mapped(intList, fnConst);
QtConcurrent::mapped(constIntList, fnConst);
QtConcurrent::mapped(classList, &MemFnTester::fnConst);
QtConcurrent::mapped(constMemFnTesterList, &MemFnTester::fnConst);
QtConcurrent::blockingMapped<QVector<int> >(intList, fnConst);
QtConcurrent::blockingMapped<QVector<int> >(constIntList, fnConst);
QtConcurrent::blockingMapped<QVector<MemFnTester> >(classList, &MemFnTester::fnConst);
QtConcurrent::blockingMapped<QVector<MemFnTester> >(constMemFnTesterList, &MemFnTester::fnConst);
QtConcurrent::blockingMapped<QList<QString> >(intList, changeTypeConst);
QtConcurrent::blockingMapped<QList<QString> >(constIntList, changeTypeConst);
QtConcurrent::blockingMapped<QList<QString> >(classList, &MemFnTester::changeTypeConst);
QtConcurrent::blockingMapped<QList<QString> >(constMemFnTesterList, &MemFnTester::changeTypeConst);
}
void tst_QtConcurrentMap::noExceptFunctionOverloads()
{
QList<int> intList;
const QList<int> constIntList;
QList<MemFnTester> classList;
const QList<MemFnTester> constMemFnTesterList;
QtConcurrent::mapped(intList, fnConstNoExcept);
QtConcurrent::mapped(constIntList, fnConstNoExcept);
QtConcurrent::mapped(classList, &MemFnTester::fnConstNoExcept);
QtConcurrent::mapped(constMemFnTesterList, &MemFnTester::fnConstNoExcept);
QtConcurrent::blockingMapped<QVector<int> >(intList, fnConstNoExcept);
QtConcurrent::blockingMapped<QVector<int> >(constIntList, fnConstNoExcept);
QtConcurrent::blockingMapped<QVector<MemFnTester> >(classList, &MemFnTester::fnConstNoExcept);
QtConcurrent::blockingMapped<QVector<MemFnTester> >(constMemFnTesterList, &MemFnTester::fnConstNoExcept);
QtConcurrent::blockingMapped<QList<QString> >(intList, changeTypeConstNoExcept);
QtConcurrent::blockingMapped<QList<QString> >(constIntList, changeTypeConstNoExcept);
QtConcurrent::blockingMapped<QList<QString> >(classList, &MemFnTester::changeTypeConstNoExcept);
QtConcurrent::blockingMapped<QList<QString> >(constMemFnTesterList, &MemFnTester::changeTypeConstNoExcept);
}
QAtomicInt currentInstanceCount;
QAtomicInt peakInstanceCount;
class InstanceCounter
{
public:
inline InstanceCounter()
{ currentInstanceCount.fetchAndAddRelaxed(1); updatePeak(); }
inline ~InstanceCounter()
{ currentInstanceCount.fetchAndAddRelaxed(-1);}
inline InstanceCounter(const InstanceCounter &)
{ currentInstanceCount.fetchAndAddRelaxed(1); updatePeak(); }
void updatePeak()
{
forever {
const int localPeak = peakInstanceCount.loadRelaxed();
const int localCurrent = currentInstanceCount.loadRelaxed();
if (localCurrent <= localPeak)
break;
if (peakInstanceCount.testAndSetOrdered(localPeak, localCurrent))
break;
}
}
};
InstanceCounter slowMap(const InstanceCounter &in)
{
QTest::qSleep(2);
return in;
}
InstanceCounter fastMap(const InstanceCounter &in)
{
QTest::qSleep(QRandomGenerator::global()->bounded(2) + 1);
return in;
}
void slowReduce(int &result, const InstanceCounter&)
{
QTest::qSleep(QRandomGenerator::global()->bounded(4) + 1);
++result;
}
void fastReduce(int &result, const InstanceCounter&)
{
++result;
}
void tst_QtConcurrentMap::throttling()
{
const int itemcount = 100;
const int allowedTemporaries = QThread::idealThreadCount() * 40;
{
currentInstanceCount.storeRelaxed(0);
peakInstanceCount.storeRelaxed(0);
QList<InstanceCounter> instances;
for (int i = 0; i < itemcount; ++i)
instances.append(InstanceCounter());
QCOMPARE(currentInstanceCount.loadRelaxed(), itemcount);
int results = QtConcurrent::blockingMappedReduced(instances, slowMap, fastReduce);
QCOMPARE(results, itemcount);
QCOMPARE(currentInstanceCount.loadRelaxed(), itemcount);
QVERIFY(peakInstanceCount.loadRelaxed() < itemcount + allowedTemporaries);
}
{
QCOMPARE(currentInstanceCount.loadRelaxed(), 0);
peakInstanceCount.storeRelaxed(0);
QList<InstanceCounter> instances;
for (int i = 0; i < itemcount; ++i)
instances.append(InstanceCounter());
QCOMPARE(currentInstanceCount.loadRelaxed(), itemcount);
int results = QtConcurrent::blockingMappedReduced(instances, fastMap, slowReduce);
QCOMPARE(results, itemcount);
QCOMPARE(currentInstanceCount.loadRelaxed(), itemcount);
QVERIFY(peakInstanceCount.loadRelaxed() < itemcount + allowedTemporaries);
}
}
#ifndef QT_NO_EXCEPTIONS
void throwMapper(int &e)
{
Q_UNUSED(e);
throw QException();
}
void tst_QtConcurrentMap::exceptions()
{
bool caught = false;
try {
QList<int> list = QList<int>() << 1 << 2 << 3;
QtConcurrent::map(list, throwMapper).waitForFinished();
} catch (const QException &) {
caught = true;
}
if (!caught)
QFAIL("did not get exception");
}
#endif
int mapper(const int &i)
{
QTest::qWait(1);
return i;
}
void tst_QtConcurrentMap::incrementalResults()
{
const int count = 200;
QList<int> ints;
for (int i=0; i < count; ++i)
ints << i;
QFuture<int> future = QtConcurrent::mapped(ints, mapper);
QList<int> results;
while (future.isFinished() == false) {
for (int i = 0; i < future.resultCount(); ++i) {
results += future.resultAt(i);
}
QTest::qWait(1);
}
QCOMPARE(future.isFinished(), true);
QCOMPARE(future.resultCount(), count);
QCOMPARE(future.results().count(), count);
}
/*
Test that mapped does not cause deep copies when holding
references to Qt containers.
*/
void tst_QtConcurrentMap::noDetach()
{
{
QList<int> l = QList<int>() << 1;
QVERIFY(l.isDetached());
QList<int> ll = l;
QVERIFY(!l.isDetached());
QtConcurrent::mapped(l, mapper).waitForFinished();
QVERIFY(!l.isDetached());
QVERIFY(!ll.isDetached());
QtConcurrent::mappedReduced(l, mapper, intSumReduce).waitForFinished();
QVERIFY(!l.isDetached());
QVERIFY(!ll.isDetached());
QtConcurrent::map(l, multiplyBy2Immutable).waitForFinished();
QVERIFY(l.isDetached());
QVERIFY(ll.isDetached());
}
{
const QList<int> l = QList<int>() << 1;
QVERIFY(l.isDetached());
const QList<int> ll = l;
QVERIFY(!l.isDetached());
QtConcurrent::mapped(l, mapper).waitForFinished();
QVERIFY(!l.isDetached());
QVERIFY(!ll.isDetached());
QtConcurrent::mappedReduced(l, mapper, intSumReduce).waitForFinished();
QVERIFY(!l.isDetached());
QVERIFY(!ll.isDetached());
}
}
void tst_QtConcurrentMap::stlContainers()
{
std::vector<int> vector;
vector.push_back(1);
vector.push_back(2);
std::vector<int> vector2 = QtConcurrent::blockingMapped<std::vector<int> >(vector, mapper);
QCOMPARE(vector2.size(), (std::vector<int>::size_type)(2));
std::list<int> list;
list.push_back(1);
list.push_back(2);
std::list<int> list2 = QtConcurrent::blockingMapped<std::list<int> >(list, mapper);
QCOMPARE(list2.size(), (std::vector<int>::size_type)(2));
QtConcurrent::mapped(list, mapper).waitForFinished();
QtConcurrent::blockingMap(list, multiplyBy2Immutable);
}
InstanceCounter ic_fn(const InstanceCounter & ic)
{
return InstanceCounter(ic);
}
// Verify that held results are deleted when a future is
// assigned over with operator ==
void tst_QtConcurrentMap::qFutureAssignmentLeak()
{
currentInstanceCount.storeRelaxed(0);
peakInstanceCount.storeRelaxed(0);
QFuture<InstanceCounter> future;
{
QList<InstanceCounter> list;
for (int i=0;i<1000;++i)
list += InstanceCounter();
future = QtConcurrent::mapped(list, ic_fn);
future.waitForFinished();
future = QtConcurrent::mapped(list, ic_fn);
future.waitForFinished();
future = QtConcurrent::mapped(list, ic_fn);
future.waitForFinished();
}
// Use QTRY_COMPARE because QtConcurrent::ThreadEngine::asynchronousFinish()
// deletes its internals after signaling finished, so it might still be holding
// on to copies of InstanceCounter for a short while.
QTRY_COMPARE(currentInstanceCount.loadRelaxed(), 1000);
future = QFuture<InstanceCounter>();
QTRY_COMPARE(currentInstanceCount.loadRelaxed(), 0);
}
inline void increment(int &num)
{
++num;
}
inline int echo(const int &num)
{
return num;
}
void add(int &result, const int &sum)
{
result += sum;
}
void tst_QtConcurrentMap::stressTest()
{
const int listSize = 1000;
const int sum = (listSize - 1) * (listSize / 2);
QList<int> list;
for (int i = 0; i < listSize; ++i) {
list.append(i);
}
for (int i =0 ; i < 100; ++i) {
QList<int> result = QtConcurrent::blockingMapped(list, echo);
for (int j = 0; j < listSize; ++j)
QCOMPARE(result.at(j), j);
}
for (int i = 0 ; i < 100; ++i) {
int result = QtConcurrent::blockingMappedReduced(list, echo, add);
QCOMPARE(result, sum);
}
for (int i = 0 ; i < 100; ++i) {
QtConcurrent::map(list, increment).waitForFinished();
for (int j = 0; j < listSize; ++j)
QCOMPARE(list.at(j), i + j + 1);
}
}
struct LockedCounter
{
LockedCounter(QMutex *mutex, QAtomicInt *ai)
: mtx(mutex),
ref(ai) {}
typedef int result_type;
int operator()(int x)
{
QMutexLocker locker(mtx);
ref->ref();
return ++x;
}
QMutex *mtx;
QAtomicInt *ref;
};
// The Thread engine holds the last reference
// to the QFuture, so this should not leak
// or fail.
void tst_QtConcurrentMap::persistentResultTest()
{
QFuture<void> voidFuture;
QMutex mtx;
QAtomicInt ref;
LockedCounter lc(&mtx, &ref);
QList<int> list;
{
list << 1 << 2 << 3;
mtx.lock();
QFuture<int> future = QtConcurrent::mapped(list
,lc);
voidFuture = future;
}
QCOMPARE(ref.loadAcquire(), 0);
mtx.unlock(); // Unblock
voidFuture.waitForFinished();
QCOMPARE(ref.loadAcquire(), 3);
}
QTEST_MAIN(tst_QtConcurrentMap)
#include "tst_qtconcurrentmap.moc"
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