You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.4 KiB
122 lines
3.4 KiB
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
|
|
** All rights reserved.
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
**
|
|
** This file is part of the QtCore module of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** Commercial Usage
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
** accordance with the Qt Commercial License Agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and Nokia.
|
|
**
|
|
** GNU Lesser General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
** General Public License version 2.1 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
**
|
|
** In addition, as a special exception, Nokia gives you certain additional
|
|
** rights. These rights are described in the Nokia Qt LGPL Exception
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
**
|
|
** 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: http://www.gnu.org/copyleft/gpl.html.
|
|
**
|
|
** If you have questions regarding the use of this file, please contact
|
|
** Nokia at qt-info@nokia.com.
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#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
|