00001 /**************************************************************************** 00002 ** 00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 00004 ** All rights reserved. 00005 ** Contact: Nokia Corporation (qt-info@nokia.com) 00006 ** 00007 ** This file is part of the QtCore module of the Qt Toolkit. 00008 ** 00009 ** $QT_BEGIN_LICENSE:LGPL$ 00010 ** Commercial Usage 00011 ** Licensees holding valid Qt Commercial licenses may use this file in 00012 ** accordance with the Qt Commercial License Agreement provided with the 00013 ** Software or, alternatively, in accordance with the terms contained in 00014 ** a written agreement between you and Nokia. 00015 ** 00016 ** GNU Lesser General Public License Usage 00017 ** Alternatively, this file may be used under the terms of the GNU Lesser 00018 ** General Public License version 2.1 as published by the Free Software 00019 ** Foundation and appearing in the file LICENSE.LGPL included in the 00020 ** packaging of this file. Please review the following information to 00021 ** ensure the GNU Lesser General Public License version 2.1 requirements 00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00023 ** 00024 ** In addition, as a special exception, Nokia gives you certain additional 00025 ** rights. These rights are described in the Nokia Qt LGPL Exception 00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module. 00027 ** 00028 ** GNU General Public License Usage 00029 ** Alternatively, this file may be used under the terms of the GNU 00030 ** General Public License version 3.0 as published by the Free Software 00031 ** Foundation and appearing in the file LICENSE.GPL included in the 00032 ** packaging of this file. Please review the following information to 00033 ** ensure the GNU General Public License version 3.0 requirements will be 00034 ** met: http://www.gnu.org/copyleft/gpl.html. 00035 ** 00036 ** If you have questions regarding the use of this file, please contact 00037 ** Nokia at qt-info@nokia.com. 00038 ** $QT_END_LICENSE$ 00039 ** 00040 ****************************************************************************/ 00041 00042 #ifndef QTHREADPOOL_H 00043 #define QTHREADPOOL_H 00044 00045 #include <QtCore/qglobal.h> 00046 00047 #include <QtCore/qthread.h> 00048 #include <QtCore/qrunnable.h> 00049 00050 #ifndef QT_NO_THREAD 00051 00052 QT_BEGIN_HEADER 00053 QT_BEGIN_NAMESPACE 00054 00055 QT_MODULE(Core) 00056 00057 class QThreadPoolPrivate; 00058 class Q_CORE_EXPORT QThreadPool : public QObject 00059 { 00060 Q_OBJECT 00061 Q_DECLARE_PRIVATE(QThreadPool) 00062 Q_PROPERTY(int expiryTimeout READ expiryTimeout WRITE setExpiryTimeout) 00063 Q_PROPERTY(int maxThreadCount READ maxThreadCount WRITE setMaxThreadCount) 00064 Q_PROPERTY(int activeThreadCount READ activeThreadCount) 00065 friend class QFutureInterfaceBase; 00066 00067 public: 00068 QThreadPool(QObject *parent = 0); 00069 ~QThreadPool(); 00070 00071 static QThreadPool *globalInstance(); 00072 00073 void start(QRunnable *runnable, int priority = 0); 00074 bool tryStart(QRunnable *runnable); 00075 00076 int expiryTimeout() const; 00077 void setExpiryTimeout(int expiryTimeout); 00078 00079 int maxThreadCount() const; 00080 void setMaxThreadCount(int maxThreadCount); 00081 00082 int activeThreadCount() const; 00083 00084 void reserveThread(); 00085 void releaseThread(); 00086 00087 void waitForDone(); 00088 }; 00089 00090 QT_END_NAMESPACE 00091 QT_END_HEADER 00092 00093 #endif // QT_NO_THREAD 00094 00095 #endif