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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtCore>
#include <QTest>
#include <QThread>
#include <QSignalSpy>
#define INVOKE_COUNT 10000
class qtimer_vs_qmetaobject : public QObject
{
Q_OBJECT
private slots:
void bench();
void bench_data();
void benchBackgroundThread();
void benchBackgroundThread_data() { bench_data(); }
};
class InvokeCounter : public QObject {
Q_OBJECT
public:
InvokeCounter() : count(0) { };
public slots:
void invokeSlot() {
count++;
if (count == INVOKE_COUNT)
emit allInvoked();
}
signals:
void allInvoked();
protected:
int count;
};
void qtimer_vs_qmetaobject::bench()
{
QFETCH(int, type);
std::function<void(InvokeCounter*)> invoke;
if (type == 0) {
invoke = [](InvokeCounter* invokeCounter) {
QTimer::singleShot(0, invokeCounter, SLOT(invokeSlot()));
};
} else if (type == 1) {
invoke = [](InvokeCounter* invokeCounter) {
QTimer::singleShot(0, invokeCounter, &InvokeCounter::invokeSlot);
};
} else if (type == 2) {
invoke = [](InvokeCounter* invokeCounter) {
QTimer::singleShot(0, invokeCounter, [invokeCounter]() {
invokeCounter->invokeSlot();
});
};
} else if (type == 3) {
invoke = [](InvokeCounter* invokeCounter) {
QTimer::singleShot(0, [invokeCounter]() {
invokeCounter->invokeSlot();
});
};
} else if (type == 4) {
invoke = [](InvokeCounter* invokeCounter) {
QMetaObject::invokeMethod(invokeCounter, "invokeSlot", Qt::QueuedConnection);
};
} else if (type == 5) {
invoke = [](InvokeCounter* invokeCounter) {
QMetaObject::invokeMethod(invokeCounter, &InvokeCounter::invokeSlot, Qt::QueuedConnection);
};
} else if (type == 6) {
invoke = [](InvokeCounter* invokeCounter) {
QMetaObject::invokeMethod(invokeCounter, [invokeCounter]() {
invokeCounter->invokeSlot();
}, Qt::QueuedConnection);
};
} else {
QFAIL("unhandled data tag");
}
QBENCHMARK {
InvokeCounter invokeCounter;
QSignalSpy spy(&invokeCounter, &InvokeCounter::allInvoked);
for(int i = 0; i < INVOKE_COUNT; ++i) {
invoke(&invokeCounter);
}
QVERIFY(spy.wait(10000));
}
}
void qtimer_vs_qmetaobject::bench_data()
{
QTest::addColumn<int>("type");
QTest::addRow("singleShot_slot") << 0;
QTest::addRow("singleShot_pmf") << 1;
QTest::addRow("singleShot_functor") << 2;
QTest::addRow("singleShot_functor_noctx") << 3;
QTest::addRow("invokeMethod_string") << 4;
QTest::addRow("invokeMethod_pmf") << 5;
QTest::addRow("invokeMethod_functor") << 6;
}
void qtimer_vs_qmetaobject::benchBackgroundThread()
{
QScopedPointer<QThread> thread(QThread::create([this]() { bench(); }));
thread->start();
QVERIFY(thread->wait());
}
QTEST_MAIN(qtimer_vs_qmetaobject)
#include "tst_qtimer_vs_qmetaobject.moc"
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