/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtTest module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QBENCHMARK_P_H+
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#define QBENCHMARK_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include <QtCore/qglobal.h>+
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+
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#if (defined(Q_OS_LINUX) || defined Q_OS_MAC) && !defined(QT_NO_PROCESS)+
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#define QTESTLIB_USE_VALGRIND +
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#else+
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#undef QTESTLIB_USE_VALGRIND+
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#endif+
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+
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#include "QtTest/private/qbenchmarkmeasurement_p.h"+
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#include <QtCore/QMap>+
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#include <QtTest/qtest_global.h>+
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#ifdef QTESTLIB_USE_VALGRIND+
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#include "QtTest/private/qbenchmarkvalgrind_p.h"+
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#endif+
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#include "QtTest/private/qbenchmarkevent_p.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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struct QBenchmarkContext+
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{+
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    // None of the strings below are assumed to contain commas (see toString() below)+
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    QString slotName;+
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    QString tag; // from _data() function+
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+
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    int checkpointIndex;+
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+
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    QString toString() const+
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    {+
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        QString s = QString::fromLatin1("%1,%2,%3").arg(slotName).arg(tag).arg(checkpointIndex);+
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        return s;+
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    }+
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+
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    QBenchmarkContext() : checkpointIndex(-1) {}+
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};+
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+
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class QBenchmarkResult+
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{+
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public:+
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    QBenchmarkContext context;+
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    qint64 value;+
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    int iterations;+
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    bool valid;+
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+
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    QBenchmarkResult()+
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    : value(-1)+
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    , iterations(-1)+
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    , valid(false)+
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    {  }+
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+
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    QBenchmarkResult(const QBenchmarkContext &context, const qint64 value, const int iterations)+
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        : context(context)+
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        , value(value)+
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        , iterations(iterations)+
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        , valid(true)+
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    {+
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    }+
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+
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    bool operator<(const QBenchmarkResult &other) const +
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    {+
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        return (value / iterations) < (other.value / other.iterations);+
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    }+
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};+
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+
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/*+
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    The QBenchmarkGlobalData class stores global benchmark-related data.+
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    QBenchmarkGlobalData:current is created at the beginning of qExec()+
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    and cleared at the end.+
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*/+
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class QBenchmarkGlobalData+
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{+
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public:+
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    static QBenchmarkGlobalData *current;+
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+
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    QBenchmarkGlobalData();+
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    ~QBenchmarkGlobalData();+
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    enum Mode { WallTime, CallgrindParentProcess, CallgrindChildProcess, TickCounter, EventCounter };+
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    void setMode(Mode mode);+
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    Mode mode() const { return mode_; }+
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    QBenchmarkMeasurerBase *createMeasurer();+
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    int adjustMedianIterationCount();+
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+
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    QBenchmarkMeasurerBase *measurer;+
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    QBenchmarkContext context;+
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    int walltimeMinimum;+
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    int iterationCount;+
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    int medianIterationCount;+
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    bool createChart;+
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    bool verboseOutput;+
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    QString callgrindOutFileBase;+
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private:+
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    Mode mode_;+
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};+
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+
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/*+
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    The QBenchmarkTestMethodData class stores all benchmark-related data+
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    for the current test case. QBenchmarkTestMethodData:current is+
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    created at the beginning of qInvokeTestMethod() and cleared at+
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    the end.+
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*/+
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class QBenchmarkTestMethodData+
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{+
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public:+
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    static QBenchmarkTestMethodData *current;+
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    QBenchmarkTestMethodData();+
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    ~QBenchmarkTestMethodData();+
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+
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    // Called once for each data row created by the _data function,+
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    // before and after calling the test function itself.+
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    void beginDataRun();+
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    void endDataRun();+
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+
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    bool isBenchmark() const { return result.valid; }+
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    bool resultsAccepted() const { return resultAccepted; }+
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    int adjustIterationCount(int suggestion);+
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    void setResult(qint64 value);+
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+
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    QBenchmarkResult result;+
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    bool resultAccepted;+
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    bool runOnce;+
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    int iterationCount;+
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};+
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+
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// low-level API:+
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namespace QTest+
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{+
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    int iterationCount();+
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    void setIterationCountHint(int count);+
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    void setIterationCount(int count);+
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+
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    Q_TESTLIB_EXPORT void beginBenchmarkMeasurement();+
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    Q_TESTLIB_EXPORT qint64 endBenchmarkMeasurement();+
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+
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    void setResult(qint64 result);+
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    void setResult(const QString &tag, qint64 result);+
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}+
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+
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QT_END_NAMESPACE+
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+
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#endif // QBENCHMARK_H+
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