/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtCore module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** This file may be used under the terms of the GNU Lesser General Public | |
** License version 2.1 as published by the Free Software Foundation and | |
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** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
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** | |
** In addition, as a special exception, Nokia gives you certain additional | |
** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
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** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#ifndef QFUTRUESYNCHRONIZER_H | |
#define QFUTRUESYNCHRONIZER_H | |
#include <QtCore/qfuture.h> | |
#ifndef QT_NO_CONCURRENT | |
QT_BEGIN_HEADER | |
QT_BEGIN_NAMESPACE | |
QT_MODULE(Core) | |
template <typename T> | |
class QFutureSynchronizer | |
{ | |
Q_DISABLE_COPY(QFutureSynchronizer) | |
public: | |
QFutureSynchronizer() : m_cancelOnWait(false) { } | |
explicit QFutureSynchronizer(const QFuture<T> &future) | |
: m_cancelOnWait(false) | |
{ addFuture(future); } | |
~QFutureSynchronizer() { waitForFinished(); } | |
void setFuture(const QFuture<T> &future) | |
{ | |
waitForFinished(); | |
m_futures.clear(); | |
addFuture(future); | |
} | |
void addFuture(const QFuture<T> &future) | |
{ | |
m_futures.append(future); | |
} | |
void waitForFinished() | |
{ | |
if (m_cancelOnWait) { | |
for (int i = 0; i < m_futures.count(); ++i) { | |
m_futures[i].cancel(); | |
} | |
} | |
for (int i = 0; i < m_futures.count(); ++i) { | |
m_futures[i].waitForFinished(); | |
} | |
} | |
void clearFutures() | |
{ | |
m_futures.clear(); | |
} | |
QList<QFuture<T> > futures() const | |
{ | |
return m_futures; | |
} | |
void setCancelOnWait(bool enabled) | |
{ | |
m_cancelOnWait = enabled; | |
} | |
bool cancelOnWait() const | |
{ | |
return m_cancelOnWait; | |
} | |
protected: | |
QList<QFuture<T> > m_futures; | |
bool m_cancelOnWait; | |
}; | |
QT_END_NAMESPACE | |
QT_END_HEADER | |
#endif // QT_NO_CONCURRENT | |
#endif // QFUTRUESYNCHRONIZER_H |