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// Copyright (C) 2016 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QBENCHMARKPERFEVENTS_P_H
#define QBENCHMARKPERFEVENTS_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 <QtTest/private/qbenchmarkmeasurement_p.h>
QT_BEGIN_NAMESPACE
class QBenchmarkPerfEventsMeasurer : public QBenchmarkMeasurerBase
{
public:
QBenchmarkPerfEventsMeasurer();
~QBenchmarkPerfEventsMeasurer();
void init() override;
void start() override;
qint64 checkpoint() override;
qint64 stop() override;
bool isMeasurementAccepted(qint64 measurement) override;
int adjustIterationCount(int suggestion) override;
int adjustMedianCount(int suggestion) override;
bool repeatCount() override { return true; }
bool needsWarmupIteration() override { return true; }
QTest::QBenchmarkMetric metricType() override;
static bool isAvailable();
static QTest::QBenchmarkMetric metricForEvent(quint32 type, quint64 event_id);
static void setCounter(const char *name);
static void listCounters();
private:
int fd = -1;
qint64 readValue();
};
QT_END_NAMESPACE
#endif // QBENCHMARKPERFEVENTS_P_H
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