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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 QtTest 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 QTESTEVENTLOOP_H
+#define QTESTEVENTLOOP_H
+
+#include <QtTest/qtest_global.h>
+
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qeventloop.h>
+#include <QtCore/qobject.h>
+#include <QtCore/qpointer.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Test)
+
+class Q_TESTLIB_EXPORT QTestEventLoop : public QObject
+{
+    Q_OBJECT
+
+public:
+    inline QTestEventLoop(QObject *aParent = 0)
+        : QObject(aParent), inLoop(false), _timeout(false), timerId(-1), loop(0) {}
+    inline void enterLoop(int secs);
+
+
+    inline void changeInterval(int secs)
+    { killTimer(timerId); timerId = startTimer(secs * 1000); }
+
+    inline bool timeout() const
+    { return _timeout; }
+
+    inline static QTestEventLoop &instance()
+    {
+        static QPointer<QTestEventLoop> testLoop;
+        if (testLoop.isNull())
+            testLoop = new QTestEventLoop(QCoreApplication::instance());
+        return *static_cast<QTestEventLoop *>(testLoop);
+    }
+
+public Q_SLOTS:
+    inline void exitLoop();
+
+protected:
+    inline void timerEvent(QTimerEvent *e);
+
+private:
+    bool inLoop;
+    bool _timeout;
+    int timerId;
+
+    QEventLoop *loop;
+};
+
+inline void QTestEventLoop::enterLoop(int secs)
+{
+    Q_ASSERT(!loop);
+
+    QEventLoop l;
+
+    inLoop = true;
+    _timeout = false;
+
+    timerId = startTimer(secs * 1000);
+
+    loop = &l;
+    l.exec();
+    loop = 0;
+}
+
+inline void QTestEventLoop::exitLoop()
+{
+    if (timerId != -1)
+        killTimer(timerId);
+    timerId = -1;
+
+    if (loop)
+        loop->exit();
+
+    inLoop = false;
+}
+
+inline void QTestEventLoop::timerEvent(QTimerEvent *e)
+{
+    if (e->timerId() != timerId)
+        return;
+    _timeout = true;
+    exitLoop();
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif