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diff --git a/src/corelib/thread/qthread.h b/src/corelib/thread/qthread.h
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTHREAD_H
+#define QTHREAD_H
+
+#include <QtCore/qobject.h>
+
+#include <limits.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+class QThreadData;
+class QThreadPrivate;
+
+#ifndef QT_NO_THREAD
+class Q_CORE_EXPORT QThread : public QObject
+{
+public:
+    static Qt::HANDLE currentThreadId();
+    static QThread *currentThread();
+    static int idealThreadCount();
+    static void yieldCurrentThread();
+
+    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();
+    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_SUPPORT
+public:
+    inline QT3_SUPPORT bool finished() const { return isFinished(); }
+    inline QT3_SUPPORT bool running() const { return isRunning(); }
+#endif
+
+protected:
+    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_THREAD
+
+class Q_CORE_EXPORT QThread : public QObject
+{
+public:
+    static Qt::HANDLE currentThreadId() { return Qt::HANDLE(currentThread()); }
+    static QThread* currentThread();
+    
+protected:
+    QThread(QThreadPrivate &dd, QObject *parent = 0);
+
+private:
+    explicit QThread(QObject *parent = 0);
+    static QThread *instance;
+
+    friend class QCoreApplication;
+    friend class QThreadData;
+    friend class QAdoptedThread;
+    Q_DECLARE_PRIVATE(QThread)
+};
+
+#endif // QT_NO_THREAD
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QTHREAD_H