/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtCore module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 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 GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#ifndef QTHREAD_H#define QTHREAD_H#include <QtCore/qobject.h>#include <limits.h>QT_BEGIN_HEADERQT_MODULE(Core)class QThreadData;class QThreadPrivate;#ifndef QT_NO_THREADclass Q_CORE_EXPORT QThread : public QObject{public:    static Qt::HANDLE currentThreadId();    static QThread *currentThread();    explicit QThread(QObject *parent = 0);    ~QThread();    enum Priority {        IdlePriority,        LowestPriority,        LowPriority,        NormalPriority,        HighPriority,        HighestPriority,        TimeCriticalPriority,        InheritPriority    };    void setPriority(Priority priority);    Priority priority() const;    bool isFinished() const;    bool isRunning() const;    void setStackSize(uint stackSize);    uint stackSize() const;    void exit(int retcode = 0);public Q_SLOTS:    void start(Priority = InheritPriority);    void terminate();    void quit();public:    // default argument causes thread to block indefinately    bool wait(unsigned long time = ULONG_MAX);Q_SIGNALS:    void started();    void finished();    void terminated();protected:    virtual void run() = 0;    int exec();    static void setTerminationEnabled(bool enabled = true);    static void sleep(unsigned long);    static void msleep(unsigned long);    static void usleep(unsigned long);#ifdef QT3_SUPPORTpublic:    inline QT3_SUPPORT bool finished() const { return isFinished(); }    inline QT3_SUPPORT bool running() const { return isRunning(); }#endifprotected:    QThread(QThreadPrivate &dd, QObject *parent = 0);private:    Q_OBJECT    Q_DECLARE_PRIVATE(QThread)    static void initialize();    static void cleanup();    friend class QCoreApplication;    friend class QThreadData;};#else // QT_NO_THREADclass Q_CORE_EXPORT QThread : public QObject{public:    static Qt::HANDLE currentThreadId() { return Qt::HANDLE(currentThread()); }    static QThread* currentThread()    { if (!instance) instance = new QThread(); return instance; }private:    QThread();    static QThread *instance;    friend class QCoreApplication;    friend class QThreadData;    Q_DECLARE_PRIVATE(QThread)};#endif // QT_NO_THREADQT_END_HEADER#endif // QTHREAD_H