Long live Qt!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QBENCHMARK_MEASUREMENT_P_H
+#define QBENCHMARK_MEASUREMENT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qdatetime.h>
+#include "3rdparty/cycle_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QBenchmarkMeasurerBase
+{
+public:
+    virtual ~QBenchmarkMeasurerBase(){};
+    virtual void init() {};
+    virtual void start() = 0;
+    virtual qint64 checkpoint() = 0;
+    virtual qint64 stop() = 0;
+    virtual bool isMeasurementAccepted(qint64 measurement) = 0;
+    virtual int adjustIterationCount(int suggestion) = 0;
+    virtual int adjustMedianCount(int suggestion) = 0;
+    virtual bool repeatCount() { return 1; } 
+    virtual bool needsWarmupIteration() { return false; } 
+    virtual QString unitText() = 0;
+    virtual QString metricText() = 0;
+};
+
+class QBenchmarkTimeMeasurer : public QBenchmarkMeasurerBase
+{
+public:
+    void start();
+    qint64 checkpoint();
+    qint64 stop();
+    bool isMeasurementAccepted(qint64 measurement);
+    int adjustIterationCount(int sugestion);
+    int adjustMedianCount(int suggestion);
+    QString unitText();
+    QString metricText();
+private:
+    QTime time;
+};
+
+#ifdef HAVE_TICK_COUNTER // defined in 3rdparty/cycle_p.h
+
+class QBenchmarkTickMeasurer : public QBenchmarkMeasurerBase
+{
+public:
+    void start();
+    qint64 checkpoint();
+    qint64 stop();
+    bool isMeasurementAccepted(qint64 measurement);
+    int adjustIterationCount(int);
+    int adjustMedianCount(int suggestion);
+    bool needsWarmupIteration();
+    QString unitText();
+    QString metricText();
+private:
+    CycleCounterTicks startTicks;
+};
+
+#endif
+
+QT_END_NAMESPACE
+
+#endif // QBENCHMARK_MEASUREMENT_P_H