f9f395c28b
Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
931 lines
25 KiB
C++
931 lines
25 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QCoreApplication>
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#include <QDebug>
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#include <QtTest/QtTest>
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#include <qfuture.h>
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#include "../qfuture/versioncheck.h"
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#include <qfuturewatcher.h>
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#include <qtconcurrentrun.h>
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#include <qtconcurrentmap.h>
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#include "../../shared/util.h"
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#ifndef QT_NO_CONCURRENT_TEST
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#include <private/qfutureinterface_p.h>
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using namespace QtConcurrent;
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#include <QtTest/QtTest>
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//#define PRINT
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class tst_QFutureWatcher: public QObject
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{
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Q_OBJECT
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private slots:
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void startFinish();
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void progressValueChanged();
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void canceled();
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void resultAt();
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void resultReadyAt();
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void futureSignals();
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void watchFinishedFuture();
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void watchCanceledFuture();
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void disconnectRunningFuture();
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void toMuchProgress();
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void progressText();
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void sharedFutureInterface();
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void changeFuture();
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void cancelEvents();
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void pauseEvents();
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void finishedState();
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void throttling();
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void incrementalMapResults();
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void incrementalFilterResults();
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void qfutureSynchornizer();
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void warnRace();
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};
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QTEST_MAIN(tst_QFutureWatcher)
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void sleeper()
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{
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QTest::qSleep(100);
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}
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void tst_QFutureWatcher::startFinish()
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{
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QFutureWatcher<void> futureWatcher;
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QSignalSpy started(&futureWatcher, SIGNAL(started()));
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QSignalSpy finished(&futureWatcher, SIGNAL(finished()));
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futureWatcher.setFuture(QtConcurrent::run(sleeper));
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QTest::qWait(10); // spin the event loop to deliver queued signals.
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QCOMPARE(started.count(), 1);
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QCOMPARE(finished.count(), 0);
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futureWatcher.future().waitForFinished();
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QTest::qWait(10);
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QCOMPARE(started.count(), 1);
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QCOMPARE(finished.count(), 1);
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}
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void mapSleeper(int &)
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{
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QTest::qSleep(100);
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}
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QSet<int> progressValues;
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QSet<QString> progressTexts;
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QMutex mutex;
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class ProgressObject : public QObject
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{
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Q_OBJECT
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public slots:
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void printProgress(int);
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void printText(const QString &text);
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void registerProgress(int);
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void registerText(const QString &text);
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};
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void ProgressObject::printProgress(int progress)
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{
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qDebug() << "thread" << QThread::currentThread() << "reports progress" << progress;
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}
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void ProgressObject::printText(const QString &text)
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{
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qDebug() << "thread" << QThread::currentThread() << "reports progress text" << text;
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}
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void ProgressObject::registerProgress(int progress)
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{
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QTest::qSleep(1);
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progressValues.insert(progress);
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}
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void ProgressObject::registerText(const QString &text)
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{
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QTest::qSleep(1);
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progressTexts.insert(text);
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}
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QList<int> createList(int listSize)
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{
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QList<int> list;
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for (int i = 0; i < listSize; ++i) {
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list.append(i);
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}
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return list;
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}
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void tst_QFutureWatcher::progressValueChanged()
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{
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#ifdef PRINT
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qDebug() << "main thread" << QThread::currentThread();
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#endif
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progressValues.clear();
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const int listSize = 20;
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QList<int> list = createList(listSize);
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QFutureWatcher<void> futureWatcher;
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ProgressObject progressObject;
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QObject::connect(&futureWatcher, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
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#ifdef PRINT
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QObject::connect(&futureWatcher, SIGNAL(progressValueChanged(int)), &progressObject, SLOT(printProgress(int)), Qt::DirectConnection );
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#endif
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QObject::connect(&futureWatcher, SIGNAL(progressValueChanged(int)), &progressObject, SLOT(registerProgress(int)));
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futureWatcher.setFuture(QtConcurrent::map(list, mapSleeper));
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QTestEventLoop::instance().enterLoop(5);
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QVERIFY(!QTestEventLoop::instance().timeout());
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futureWatcher.disconnect();
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QVERIFY(progressValues.contains(0));
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QVERIFY(progressValues.contains(listSize));
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}
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class CancelObject : public QObject
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{
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Q_OBJECT
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public:
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bool wasCanceled;
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CancelObject() : wasCanceled(false) {};
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public slots:
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void cancel();
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};
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void CancelObject::cancel()
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{
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#ifdef PRINT
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qDebug() << "thread" << QThread::currentThread() << "reports canceled";
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#endif
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wasCanceled = true;
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}
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void tst_QFutureWatcher::canceled()
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{
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const int listSize = 20;
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QList<int> list = createList(listSize);
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QFutureWatcher<void> futureWatcher;
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QFuture<void> future;
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CancelObject cancelObject;
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QObject::connect(&futureWatcher, SIGNAL(canceled()), &cancelObject, SLOT(cancel()));
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QObject::connect(&futureWatcher, SIGNAL(canceled()),
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&QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
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future = QtConcurrent::map(list, mapSleeper);
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futureWatcher.setFuture(future);
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futureWatcher.cancel();
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QTestEventLoop::instance().enterLoop(5);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(future.isCanceled());
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QVERIFY(cancelObject.wasCanceled);
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futureWatcher.disconnect();
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future.waitForFinished();
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}
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class IntTask : public RunFunctionTask<int>
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{
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public:
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void runFunctor()
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{
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result = 10;
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}
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};
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void tst_QFutureWatcher::resultAt()
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{
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QFutureWatcher<int> futureWatcher;
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futureWatcher.setFuture((new IntTask())->start());
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futureWatcher.waitForFinished();
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QCOMPARE(futureWatcher.result(), 10);
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QCOMPARE(futureWatcher.resultAt(0), 10);
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}
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void tst_QFutureWatcher::resultReadyAt()
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{
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QFutureWatcher<int> futureWatcher;
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QObject::connect(&futureWatcher, SIGNAL(resultReadyAt(int)), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);
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QFuture<int> future = (new IntTask())->start();
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futureWatcher.setFuture(future);
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QTestEventLoop::instance().enterLoop(1);
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QVERIFY(!QTestEventLoop::instance().timeout());
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// Setting the future again should give us another signal.
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// (this is to prevent the race where the task associated
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// with the future finishes before setFuture is called.)
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futureWatcher.setFuture(QFuture<int>());
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futureWatcher.setFuture(future);
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QTestEventLoop::instance().enterLoop(1);
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QVERIFY(!QTestEventLoop::instance().timeout());
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}
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class SignalSlotObject : public QObject
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{
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Q_OBJECT
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signals:
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void cancel();
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public slots:
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void started()
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{
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qDebug() << "started called";
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}
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void finished()
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{
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qDebug() << "finished called";
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}
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void canceled()
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{
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qDebug() << "canceled called";
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}
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#ifdef PRINT
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void resultReadyAt(int index)
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{
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qDebug() << "result" << index << "ready";
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}
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#else
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void resultReadyAt(int) { }
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#endif
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void progressValueChanged(int progress)
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{
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qDebug() << "progress" << progress;
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}
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void progressRangeChanged(int min, int max)
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{
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qDebug() << "progress range" << min << max;
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}
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};
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void tst_QFutureWatcher::futureSignals()
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{
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{
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QFutureInterface<int> a;
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QFutureWatcher<int> f;
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SignalSlotObject object;
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#ifdef PRINT
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connect(&f, SIGNAL(finished()), &object, SLOT(finished()));
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connect(&f, SIGNAL(progressValueChanged(int)), &object, SLOT(progressValueChanged(int)));
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#endif
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// must connect to resultReadyAt so that the watcher can detect the connection
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// (QSignalSpy does not trigger it.)
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connect(&f, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
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a.reportStarted();
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f.setFuture(a.future());
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QSignalSpy progressSpy(&f, SIGNAL(progressValueChanged(int)));
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const int progress = 1;
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a.setProgressValue(progress);
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QTest::qWait(10);
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QCOMPARE(progressSpy.count(), 2);
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QCOMPARE(progressSpy.takeFirst().at(0).toInt(), 0);
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QCOMPARE(progressSpy.takeFirst().at(0).toInt(), 1);
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QSignalSpy finishedSpy(&f, SIGNAL(finished()));
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QSignalSpy resultReadySpy(&f, SIGNAL(resultReadyAt(int)));
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const int result = 10;
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a.reportResult(&result);
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QTest::qWait(10);
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QCOMPARE(resultReadySpy.count(), 1);
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a.reportFinished(&result);
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QTest::qWait(10);
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QCOMPARE(resultReadySpy.count(), 2);
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QCOMPARE(resultReadySpy.takeFirst().at(0).toInt(), 0); // check the index
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QCOMPARE(resultReadySpy.takeFirst().at(0).toInt(), 1);
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QCOMPARE(finishedSpy.count(), 1);
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}
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}
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void tst_QFutureWatcher::watchFinishedFuture()
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{
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QFutureInterface<int> iface;
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iface.reportStarted();
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QFuture<int> f = iface.future();
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int value = 100;
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iface.reportFinished(&value);
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QFutureWatcher<int> watcher;
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SignalSlotObject object;
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#ifdef PRINT
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connect(&watcher, SIGNAL(started()), &object, SLOT(started()));
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connect(&watcher, SIGNAL(canceled()), &object, SLOT(canceled()));
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connect(&watcher, SIGNAL(finished()), &object, SLOT(finished()));
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connect(&watcher, SIGNAL(progressValueChanged(int)), &object, SLOT(progressValueChanged(int)));
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connect(&watcher, SIGNAL(progressRangeChanged(int, int)), &object, SLOT(progressRangeChanged(int, int)));
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#endif
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connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
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QSignalSpy startedSpy(&watcher, SIGNAL(started()));
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QSignalSpy finishedSpy(&watcher, SIGNAL(finished()));
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QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
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QSignalSpy canceledSpy(&watcher, SIGNAL(canceled()));
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watcher.setFuture(f);
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QTest::qWait(10);
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QCOMPARE(startedSpy.count(), 1);
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QCOMPARE(finishedSpy.count(), 1);
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QCOMPARE(resultReadySpy.count(), 1);
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QCOMPARE(canceledSpy.count(), 0);
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}
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void tst_QFutureWatcher::watchCanceledFuture()
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{
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QFuture<int> f;
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QFutureWatcher<int> watcher;
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SignalSlotObject object;
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#ifdef PRINT
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connect(&watcher, SIGNAL(started()), &object, SLOT(started()));
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connect(&watcher, SIGNAL(canceled()), &object, SLOT(canceled()));
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connect(&watcher, SIGNAL(finished()), &object, SLOT(finished()));
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connect(&watcher, SIGNAL(progressValueChanged(int)), &object, SLOT(progressValueChanged(int)));
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connect(&watcher, SIGNAL(progressRangeChanged(int, int)), &object, SLOT(progressRangeChanged(int, int)));
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#endif
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connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
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QSignalSpy startedSpy(&watcher, SIGNAL(started()));
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QSignalSpy finishedSpy(&watcher, SIGNAL(finished()));
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QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
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QSignalSpy canceledSpy(&watcher, SIGNAL(canceled()));
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watcher.setFuture(f);
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QTest::qWait(10);
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QCOMPARE(startedSpy.count(), 1);
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QCOMPARE(finishedSpy.count(), 1);
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QCOMPARE(resultReadySpy.count(), 0);
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QCOMPARE(canceledSpy.count(), 1);
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}
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void tst_QFutureWatcher::disconnectRunningFuture()
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{
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QFutureInterface<int> a;
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a.reportStarted();
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QFuture<int> f = a.future();
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QFutureWatcher<int> *watcher = new QFutureWatcher<int>();
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watcher->setFuture(f);
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SignalSlotObject object;
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connect(watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
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QSignalSpy finishedSpy(watcher, SIGNAL(finished()));
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QSignalSpy resultReadySpy(watcher, SIGNAL(resultReadyAt(int)));
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const int result = 10;
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a.reportResult(&result);
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QTest::qWait(10);
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QCOMPARE(resultReadySpy.count(), 1);
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delete watcher;
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a.reportResult(&result);
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QTest::qWait(10);
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QCOMPARE(resultReadySpy.count(), 1);
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a.reportFinished(&result);
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QTest::qWait(10);
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QCOMPARE(finishedSpy.count(), 0);
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}
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const int maxProgress = 100000;
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class ProgressEmitterTask : public RunFunctionTask<void>
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{
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public:
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void runFunctor()
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{
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setProgressRange(0, maxProgress);
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for (int p = 0; p <= maxProgress; ++p)
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setProgressValue(p);
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}
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};
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void tst_QFutureWatcher::toMuchProgress()
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{
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progressValues.clear();
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ProgressObject o;
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QFutureWatcher<void> f;
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QObject::connect(&f, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
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#ifdef PRINT
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QObject::connect(&f, SIGNAL(progressValueChanged(int)), &o, SLOT(printProgress(int)));
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#endif
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QObject::connect(&f, SIGNAL(progressValueChanged(int)), &o, SLOT(registerProgress(int)));
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f.setFuture((new ProgressEmitterTask())->start());
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QTestEventLoop::instance().enterLoop(5);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QVERIFY(progressValues.contains(maxProgress));
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}
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template <typename T>
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class ProgressTextTask : public RunFunctionTask<T>
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{
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public:
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void runFunctor()
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{
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this->setProgressValueAndText(1, QLatin1String("Foo 1"));
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while (this->isProgressUpdateNeeded() == false)
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QTest::qSleep(1);
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this->setProgressValueAndText(2, QLatin1String("Foo 2"));
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while (this->isProgressUpdateNeeded() == false)
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QTest::qSleep(1);
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this->setProgressValueAndText(3, QLatin1String("Foo 3"));
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while (this->isProgressUpdateNeeded() == false)
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QTest::qSleep(1);
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this->setProgressValueAndText(4, QLatin1String("Foo 4"));
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}
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};
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void tst_QFutureWatcher::progressText()
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{
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{ // instantiate API for T=int and T=void.
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ProgressTextTask<int> a;
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ProgressTextTask<void> b;
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}
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{
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progressValues.clear();
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progressTexts.clear();
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QFuture<int> f = ((new ProgressTextTask<int>())->start());
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QFutureWatcher<int> watcher;
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ProgressObject o;
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QObject::connect(&watcher, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
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#ifdef PRINT
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QObject::connect(&watcher, SIGNAL(progressValueChanged(int)), &o, SLOT(printProgress(int)));
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QObject::connect(&watcher, SIGNAL(progressTextChanged(const QString &)), &o, SLOT(printText(const QString &)));
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#endif
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QObject::connect(&watcher, SIGNAL(progressValueChanged(int)), &o, SLOT(registerProgress(int)));
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QObject::connect(&watcher, SIGNAL(progressTextChanged(const QString &)), &o, SLOT(registerText(const QString &)));
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watcher.setFuture(f);
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QTestEventLoop::instance().enterLoop(5);
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QVERIFY(!QTestEventLoop::instance().timeout());
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QCOMPARE(f.progressText(), QLatin1String("Foo 4"));
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QCOMPARE(f.progressValue(), 4);
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QVERIFY(progressValues.contains(1));
|
|
QVERIFY(progressValues.contains(2));
|
|
QVERIFY(progressValues.contains(3));
|
|
QVERIFY(progressValues.contains(4));
|
|
QVERIFY(progressTexts.contains(QLatin1String("Foo 1")));
|
|
QVERIFY(progressTexts.contains(QLatin1String("Foo 2")));
|
|
QVERIFY(progressTexts.contains(QLatin1String("Foo 3")));
|
|
QVERIFY(progressTexts.contains(QLatin1String("Foo 4")));
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void callInterface(T &obj)
|
|
{
|
|
obj.progressValue();
|
|
obj.progressMinimum();
|
|
obj.progressMaximum();
|
|
obj.progressText();
|
|
|
|
obj.isStarted();
|
|
obj.isFinished();
|
|
obj.isRunning();
|
|
obj.isCanceled();
|
|
obj.isPaused();
|
|
|
|
obj.cancel();
|
|
obj.pause();
|
|
obj.resume();
|
|
obj.togglePaused();
|
|
obj.waitForFinished();
|
|
|
|
const T& objConst = obj;
|
|
objConst.progressValue();
|
|
objConst.progressMinimum();
|
|
objConst.progressMaximum();
|
|
objConst.progressText();
|
|
|
|
objConst.isStarted();
|
|
objConst.isFinished();
|
|
objConst.isRunning();
|
|
objConst.isCanceled();
|
|
objConst.isPaused();
|
|
}
|
|
|
|
template <typename T>
|
|
void callInterface(const T &obj)
|
|
{
|
|
obj.result();
|
|
obj.resultAt(0);
|
|
}
|
|
|
|
|
|
// QFutureWatcher and QFuture has a similar interface. Test
|
|
// that the functions we want ot have in both are actually
|
|
// there.
|
|
void tst_QFutureWatcher::sharedFutureInterface()
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
|
|
QFuture<int> intFuture = iface.future();
|
|
|
|
int value = 0;
|
|
iface.reportFinished(&value);
|
|
|
|
QFuture<void> voidFuture;
|
|
QFutureWatcher<int> intWatcher;
|
|
intWatcher.setFuture(intFuture);
|
|
QFutureWatcher<void> voidWatcher;
|
|
|
|
callInterface(intFuture);
|
|
callInterface(voidFuture);
|
|
callInterface(intWatcher);
|
|
callInterface(voidWatcher);
|
|
|
|
callInterface(intFuture);
|
|
callInterface(intWatcher);
|
|
}
|
|
|
|
void tst_QFutureWatcher::changeFuture()
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
|
|
QFuture<int> a = iface.future();
|
|
|
|
int value = 0;
|
|
iface.reportFinished(&value);
|
|
|
|
QFuture<int> b;
|
|
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
|
|
|
|
watcher.setFuture(a); // Watch 'a' which will genere a resultReady event.
|
|
watcher.setFuture(b); // But oh no! we're switching to another future
|
|
QTest::qWait(10); // before the event gets delivered.
|
|
|
|
QCOMPARE(resultReadySpy.count(), 0);
|
|
|
|
watcher.setFuture(a);
|
|
watcher.setFuture(b);
|
|
watcher.setFuture(a); // setting it back gets us one event, not two.
|
|
QTest::qWait(10);
|
|
|
|
QCOMPARE(resultReadySpy.count(), 1);
|
|
}
|
|
|
|
// Test that events aren't delivered from canceled futures
|
|
void tst_QFutureWatcher::cancelEvents()
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
|
|
QFuture<int> a = iface.future();
|
|
|
|
int value = 0;
|
|
iface.reportFinished(&value);
|
|
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
|
|
|
|
watcher.setFuture(a);
|
|
watcher.cancel();
|
|
|
|
QTest::qWait(10);
|
|
|
|
QCOMPARE(resultReadySpy.count(), 0);
|
|
}
|
|
|
|
// Tests that events from paused futures are saved and
|
|
// delivered on resume.
|
|
void tst_QFutureWatcher::pauseEvents()
|
|
{
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
|
|
QFuture<int> a = iface.future();
|
|
|
|
int value = 0;
|
|
iface.reportFinished(&value);
|
|
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
|
|
|
|
watcher.setFuture(a);
|
|
watcher.pause();
|
|
|
|
QTest::qWait(10);
|
|
QCOMPARE(resultReadySpy.count(), 0);
|
|
|
|
watcher.resume();
|
|
QTest::qWait(10);
|
|
QCOMPARE(resultReadySpy.count(), 1);
|
|
}
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
|
|
QFuture<int> a = iface.future();
|
|
|
|
int value = 0;
|
|
iface.reportFinished(&value);
|
|
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
QSignalSpy resultReadySpy(&watcher, SIGNAL(resultReadyAt(int)));
|
|
|
|
watcher.setFuture(a);
|
|
a.pause();
|
|
|
|
QFuture<int> b;
|
|
watcher.setFuture(b); // If we watch b instead, resuming a
|
|
a.resume(); // should give us no results.
|
|
|
|
QTest::qWait(10);
|
|
QCOMPARE(resultReadySpy.count(), 0);
|
|
}
|
|
}
|
|
|
|
// Test that the finished state for the watcher gets
|
|
// set when the finished event is delivered.
|
|
// This means it will lag the finished state for the future,
|
|
// but makes it more useful.
|
|
void tst_QFutureWatcher::finishedState()
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
QFuture<int> future = iface.future();
|
|
QFutureWatcher<int> watcher;
|
|
|
|
watcher.setFuture(future);
|
|
QTest::qWait(10);
|
|
|
|
iface.reportFinished();
|
|
QVERIFY(future.isFinished());
|
|
QVERIFY(watcher.isFinished() == false);
|
|
|
|
QTest::qWait(10);
|
|
QVERIFY(watcher.isFinished());
|
|
}
|
|
|
|
/*
|
|
Verify that throttling kicks in if you report a lot of results,
|
|
and that it clears when the result events are processed.
|
|
*/
|
|
void tst_QFutureWatcher::throttling()
|
|
{
|
|
QFutureInterface<int> iface;
|
|
iface.reportStarted();
|
|
QFuture<int> future = iface.future();
|
|
QFutureWatcher<int> watcher;
|
|
watcher.setFuture(future);
|
|
|
|
QVERIFY(iface.isThrottled() == false);
|
|
|
|
for (int i = 0; i < 1000; ++i) {
|
|
int result = 0;
|
|
iface.reportResult(result);
|
|
}
|
|
|
|
QVERIFY(iface.isThrottled() == true);
|
|
|
|
QTest::qWait(100); // process events.
|
|
|
|
QVERIFY(iface.isThrottled() == false);
|
|
|
|
iface.reportFinished();
|
|
}
|
|
|
|
int mapper(const int &i)
|
|
{
|
|
return i;
|
|
}
|
|
|
|
class ResultReadyTester : public QObject
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
ResultReadyTester(QFutureWatcher<int> *watcher)
|
|
:m_watcher(watcher), filter(false), ok(true), count(0)
|
|
{
|
|
|
|
}
|
|
public slots:
|
|
void resultReadyAt(int index)
|
|
{
|
|
++count;
|
|
if (m_watcher->future().isResultReadyAt(index) == false)
|
|
ok = false;
|
|
if (!filter && m_watcher->future().resultAt(index) != index)
|
|
ok = false;
|
|
if (filter && m_watcher->future().resultAt(index) != index * 2 + 1)
|
|
ok = false;
|
|
}
|
|
public:
|
|
QFutureWatcher<int> *m_watcher;
|
|
bool filter;
|
|
bool ok;
|
|
int count;
|
|
};
|
|
|
|
void tst_QFutureWatcher::incrementalMapResults()
|
|
{
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
#ifdef PRINT
|
|
connect(&watcher, SIGNAL(finished()), &object, SLOT(finished()));
|
|
connect(&watcher, SIGNAL(progressValueChanged(int)), &object, SLOT(progressValueChanged(int)));
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
#endif
|
|
|
|
QObject::connect(&watcher, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
|
|
|
|
ResultReadyTester resultReadyTester(&watcher);
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &resultReadyTester, SLOT(resultReadyAt(int)));
|
|
|
|
const int count = 10000;
|
|
QList<int> ints;
|
|
for (int i = 0; i < count; ++i)
|
|
ints << i;
|
|
|
|
QFuture<int> future = QtConcurrent::mapped(ints, mapper);
|
|
watcher.setFuture(future);
|
|
|
|
QTestEventLoop::instance().enterLoop(10);
|
|
QVERIFY(!QTestEventLoop::instance().timeout());
|
|
QCOMPARE(resultReadyTester.count, count);
|
|
QVERIFY(resultReadyTester.ok);
|
|
QVERIFY(watcher.isFinished());
|
|
future.waitForFinished();
|
|
}
|
|
|
|
bool filterer(int i)
|
|
{
|
|
return (i % 2);
|
|
}
|
|
|
|
void tst_QFutureWatcher::incrementalFilterResults()
|
|
{
|
|
QFutureWatcher<int> watcher;
|
|
|
|
SignalSlotObject object;
|
|
#ifdef PRINT
|
|
connect(&watcher, SIGNAL(finished()), &object, SLOT(finished()));
|
|
connect(&watcher, SIGNAL(progressValueChanged(int)), &object, SLOT(progressValueChanged(int)));
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &object, SLOT(resultReadyAt(int)));
|
|
#endif
|
|
|
|
QObject::connect(&watcher, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
|
|
|
|
|
|
ResultReadyTester resultReadyTester(&watcher);
|
|
resultReadyTester.filter = true;
|
|
connect(&watcher, SIGNAL(resultReadyAt(int)), &resultReadyTester, SLOT(resultReadyAt(int)));
|
|
|
|
const int count = 10000;
|
|
QList<int> ints;
|
|
for (int i = 0; i < count; ++i)
|
|
ints << i;
|
|
|
|
QFuture<int> future = QtConcurrent::filtered(ints, filterer);
|
|
watcher.setFuture(future);
|
|
|
|
QTestEventLoop::instance().enterLoop(10);
|
|
QVERIFY(!QTestEventLoop::instance().timeout());
|
|
QCOMPARE(resultReadyTester.count, count / 2);
|
|
QVERIFY(resultReadyTester.ok);
|
|
QVERIFY(watcher.isFinished());
|
|
future.waitForFinished();
|
|
}
|
|
|
|
void tst_QFutureWatcher::qfutureSynchornizer()
|
|
{
|
|
int taskCount = 1000;
|
|
QTime t;
|
|
t.start();
|
|
|
|
{
|
|
QFutureSynchronizer<void> sync;
|
|
|
|
sync.setCancelOnWait(true);
|
|
for (int i = 0; i < taskCount; ++i) {
|
|
sync.addFuture(run(sleeper));
|
|
}
|
|
}
|
|
|
|
// Test that we're not running each task.
|
|
QVERIFY(t.elapsed() < taskCount * 10);
|
|
}
|
|
|
|
class DummyObject : public QObject {
|
|
Q_OBJECT
|
|
public slots:
|
|
void dummySlot() {}
|
|
public:
|
|
static void function(QMutex *m)
|
|
{
|
|
QMutexLocker lock(m);
|
|
}
|
|
};
|
|
|
|
void tst_QFutureWatcher::warnRace()
|
|
{
|
|
#ifndef Q_OS_MAC //I don't know why it is not working on mac
|
|
#ifndef QT_NO_DEBUG
|
|
QTest::ignoreMessage(QtWarningMsg, "QFutureWatcher::connect: connecting after calling setFuture() is likely to produce race");
|
|
#endif
|
|
#endif
|
|
QFutureWatcher<void> watcher;
|
|
DummyObject object;
|
|
QMutex mutex;
|
|
mutex.lock();
|
|
|
|
QFuture<void> future = QtConcurrent::run(DummyObject::function, &mutex);
|
|
watcher.setFuture(future);
|
|
QTRY_VERIFY(future.isStarted());
|
|
connect(&watcher, SIGNAL(finished()), &object, SLOT(dummySlot()));
|
|
mutex.unlock();
|
|
future.waitForFinished();
|
|
}
|
|
|
|
#include "tst_qfuturewatcher.moc"
|
|
|
|
#else
|
|
QTEST_NOOP_MAIN
|
|
#endif
|