1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtTest module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#include <QtTest/private/qbenchmarkevent_p.h>
41#include <QtTest/private/qbenchmark_p.h>
42#include <QtTest/private/qbenchmarkmetric_p.h>
43#include <qdebug.h>
44
45QT_BEGIN_NAMESPACE
46
47QBenchmarkEvent::QBenchmarkEvent() = default;
48
49QBenchmarkEvent::~QBenchmarkEvent() = default;
50
51void QBenchmarkEvent::start()
52{
53 eventCounter = 0;
54 QAbstractEventDispatcher::instance()->installNativeEventFilter(this);
55}
56
57qint64 QBenchmarkEvent::checkpoint()
58{
59 return eventCounter;
60}
61
62qint64 QBenchmarkEvent::stop()
63{
64 QAbstractEventDispatcher::instance()->removeNativeEventFilter(this);
65 return eventCounter;
66}
67
68// It's very tempting to simply reject a measurement if 0 events
69// where counted, however that is a possible situation and returning
70// false here will create a infinite loop. Do not change this.
71bool QBenchmarkEvent::isMeasurementAccepted(qint64 measurement)
72{
73 Q_UNUSED(measurement);
74 return true;
75}
76
77int QBenchmarkEvent::adjustIterationCount(int suggestion)
78{
79 return suggestion;
80}
81
82int QBenchmarkEvent::adjustMedianCount(int suggestion)
83{
84 Q_UNUSED(suggestion);
85 return 1;
86}
87
88QTest::QBenchmarkMetric QBenchmarkEvent::metricType()
89{
90 return QTest::Events;
91}
92
93// This could be done in a much better way, this is just the beginning.
94#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
95bool QBenchmarkEvent::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result)
96#else
97bool QBenchmarkEvent::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
98#endif
99{
100 Q_UNUSED(eventType);
101 Q_UNUSED(message);
102 Q_UNUSED(result);
103
104 eventCounter++;
105 return false;
106}
107
108QT_END_NAMESPACE
109

source code of qtbase/src/testlib/qbenchmarkevent.cpp