| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** 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 |
| ** 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. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QTCONCURRENT_RUNBASE_H |
| #define QTCONCURRENT_RUNBASE_H |
| |
| #include <QtCore/qglobal.h> |
| |
| #ifndef QT_NO_CONCURRENT |
| |
| #include <QtCore/qfuture.h> |
| #include <QtCore/qrunnable.h> |
| #include <QtCore/qthreadpool.h> |
| |
| QT_BEGIN_HEADER |
| QT_BEGIN_NAMESPACE |
| |
| QT_MODULE(Core) |
| |
| #ifndef qdoc |
| |
| namespace QtConcurrent { |
| |
| template <typename T> |
| struct SelectSpecialization |
| { |
| template <class Normal, class Void> |
| struct Type { typedef Normal type; }; |
| }; |
| |
| template <> |
| struct SelectSpecialization<void> |
| { |
| template <class Normal, class Void> |
| struct Type { typedef Void type; }; |
| }; |
| |
| template <typename T> |
| class RunFunctionTaskBase : public QFutureInterface<T> , public QRunnable |
| { |
| public: |
| QFuture<T> start() |
| { |
| this->setRunnable(this); |
| this->reportStarted(); |
| QFuture<T> future = this->future(); |
| QThreadPool::globalInstance()->start(this, /*m_priority*/ 0); |
| return future; |
| } |
| |
| void run() {} |
| virtual void runFunctor() = 0; |
| }; |
| |
| template <typename T> |
| class RunFunctionTask : public RunFunctionTaskBase<T> |
| { |
| public: |
| void run() |
| { |
| if (this->isCanceled()) { |
| this->reportFinished(); |
| return; |
| } |
| this->runFunctor(); |
| this->reportResult(result); |
| this->reportFinished(); |
| } |
| T result; |
| }; |
| |
| template <> |
| class RunFunctionTask<void> : public RunFunctionTaskBase<void> |
| { |
| public: |
| void run() |
| { |
| if (this->isCanceled()) { |
| this->reportFinished(); |
| return; |
| } |
| this->runFunctor(); |
| this->reportFinished(); |
| } |
| }; |
| |
| } //namespace QtConcurrent |
| |
| #endif //qdoc |
| |
| QT_END_NAMESPACE |
| QT_END_HEADER |
| |
| #endif // QT_NO_CONCURRENT |
| |
| #endif |