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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <QtCore/qglobal.h>
#include <QtCore/qwineventnotifier.h>
#include <QtCore/qeventloop.h>
#include <QtCore/qvector.h>
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qt_windows.h>
class tst_QWinEventNotifier : public QObject
{
Q_OBJECT
private slots:
void waves_data();
void waves();
};
class EventsFactory : public QObject
{
Q_OBJECT
public:
explicit EventsFactory(int waves, int notifiers, int iterations)
: numberOfWaves(waves), numberOfNotifiers(notifiers),
numberOfIterations(iterations)
{
events.resize(notifiers);
for (int i = 0; i < notifiers; ++i) {
events[i] = CreateEvent(NULL, TRUE, FALSE, NULL);
QVERIFY(events[i] != NULL);
QWinEventNotifier *notifier = new QWinEventNotifier(events[i], this);
Q_CHECK_PTR(notifier);
connect(notifier, &QWinEventNotifier::activated, [i, this]() {
ResetEvent(this->events[i]);
if (--this->numberOfIterations == 0)
this->eventLoop.quit();
else
SetEvent(this->events[(i + 1) % this->numberOfNotifiers]);
});
connect(this, &EventsFactory::stop, [notifier]() {
notifier->setEnabled(false);
});
}
}
virtual ~EventsFactory()
{
for (auto event : events)
CloseHandle(event);
}
void run()
{
Q_ASSERT(numberOfWaves != 0);
int offset = 0;
for (int i = 0; i < numberOfWaves; ++i) {
SetEvent(events[offset]);
offset += qMax(1, numberOfNotifiers / numberOfWaves);
offset %= numberOfNotifiers;
}
eventLoop.exec();
}
signals:
void stop();
protected:
QVector<HANDLE> events;
QEventLoop eventLoop;
int numberOfWaves;
int numberOfNotifiers;
int numberOfIterations;
};
void tst_QWinEventNotifier::waves_data()
{
QTest::addColumn<int>("waves");
QTest::addColumn<int>("notifiers");
for (int waves : {1, 3, 10}) {
for (int notifiers : {10, 100, 1000})
QTest::addRow("waves: %d, notifiers: %d", waves, notifiers) << waves << notifiers;
}
}
void tst_QWinEventNotifier::waves()
{
QFETCH(int, waves);
QFETCH(int, notifiers);
const int iterations = 100000;
EventsFactory factory(waves, notifiers, iterations);
QElapsedTimer timer;
timer.start();
factory.run();
qDebug("Elapsed time: %.1f s", timer.elapsed() / 1000.0);
emit factory.stop();
}
QTEST_MAIN(tst_QWinEventNotifier)
#include "tst_bench_qwineventnotifier.moc"
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