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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QBENCHMARK_P_H
#define QBENCHMARK_P_H
#include <stdlib.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/qglobal.h>
#if defined(Q_OS_LINUX) && !defined(QT_LINUXBASE) && !defined(Q_OS_ANDROID)
#define QTESTLIB_USE_PERF_EVENTS
#else
#undef QTESTLIB_USE_PERF_EVENTS
#endif
#include <QtTest/private/qbenchmarkmeasurement_p.h>
#include <QtCore/QMap>
#include <QtTest/qttestglobal.h>
#if QT_CONFIG(valgrind)
#include <QtTest/private/qbenchmarkvalgrind_p.h>
#endif
#ifdef QTESTLIB_USE_PERF_EVENTS
#include <QtTest/private/qbenchmarkperfevents_p.h>
#endif
#include <QtTest/private/qbenchmarkevent_p.h>
#include <QtTest/private/qbenchmarkmetric_p.h>
QT_BEGIN_NAMESPACE
struct QBenchmarkContext
{
// None of the strings below are assumed to contain commas (see toString() below)
QString slotName;
QString tag; // from _data() function
int checkpointIndex = -1;
QString toString() const
{
return QString::fromLatin1("%1,%2,%3")
.arg(slotName, tag, QString::number(checkpointIndex));
}
QBenchmarkContext() = default;
};
Q_DECLARE_TYPEINFO(QBenchmarkContext, Q_RELOCATABLE_TYPE);
class QBenchmarkResult
{
public:
QBenchmarkContext context;
qreal value = -1;
int iterations = -1;
QTest::QBenchmarkMetric metric = QTest::FramesPerSecond;
bool setByMacro = true;
bool valid = false;
QBenchmarkResult() = default;
QBenchmarkResult(
const QBenchmarkContext &context, const qreal value, const int iterations,
QTest::QBenchmarkMetric metric, bool setByMacro)
: context(context)
, value(value)
, iterations(iterations)
, metric(metric)
, setByMacro(setByMacro)
, valid(true)
{ }
bool operator<(const QBenchmarkResult &other) const
{
return (value / iterations) < (other.value / other.iterations);
}
};
Q_DECLARE_TYPEINFO(QBenchmarkResult, Q_RELOCATABLE_TYPE);
/*
The QBenchmarkGlobalData class stores global benchmark-related data.
QBenchmarkGlobalData:current is created at the beginning of qExec()
and cleared at the end.
*/
class Q_TESTLIB_EXPORT QBenchmarkGlobalData
{
public:
static QBenchmarkGlobalData *current;
QBenchmarkGlobalData();
~QBenchmarkGlobalData();
enum Mode { WallTime, CallgrindParentProcess, CallgrindChildProcess, PerfCounter, TickCounter, EventCounter };
void setMode(Mode mode);
Mode mode() const { return mode_; }
QBenchmarkMeasurerBase *createMeasurer();
int adjustMedianIterationCount();
QBenchmarkMeasurerBase *measurer = nullptr;
QBenchmarkContext context;
int walltimeMinimum = -1;
int iterationCount = -1;
int medianIterationCount = -1;
bool createChart = false;
bool verboseOutput = false;
QString callgrindOutFileBase;
int minimumTotal = -1;
private:
Mode mode_ = WallTime;
};
/*
The QBenchmarkTestMethodData class stores all benchmark-related data
for the current test case. QBenchmarkTestMethodData:current is
created at the beginning of qInvokeTestMethod() and cleared at
the end.
*/
class Q_TESTLIB_EXPORT QBenchmarkTestMethodData
{
public:
static QBenchmarkTestMethodData *current;
QBenchmarkTestMethodData();
~QBenchmarkTestMethodData();
// Called once for each data row created by the _data function,
// before and after calling the test function itself.
void beginDataRun();
void endDataRun();
bool isBenchmark() const { return result.valid; }
bool resultsAccepted() const { return resultAccepted; }
int adjustIterationCount(int suggestion);
void setResult(qreal value, QTest::QBenchmarkMetric metric, bool setByMacro = true);
QBenchmarkResult result;
bool resultAccepted = false;
bool runOnce = false;
int iterationCount = -1;
};
// low-level API:
namespace QTest
{
int iterationCount();
void setIterationCountHint(int count);
void setIterationCount(int count);
void beginBenchmarkMeasurement();
quint64 endBenchmarkMeasurement();
}
QT_END_NAMESPACE
#endif // QBENCHMARK_H
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