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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QtCore>
+
+#include <qtest.h>
+#include <qtesteventloop.h>
+
+class PingPong : public QObject
+{
+public:
+ void setPeer(QObject *peer);
+ void resetCounter() {m_counter = 100;}
+
+protected:
+ bool event(QEvent *e);
+
+private:
+ QObject *m_peer;
+ int m_counter;
+};
+
+void PingPong::setPeer(QObject *peer)
+{
+ m_peer = peer;
+ m_counter = 100;
+}
+
+bool PingPong::event(QEvent *)
+{
+ --m_counter;
+ if (m_counter > 0) {
+ QEvent *e = new QEvent(QEvent::User);
+ QCoreApplication::postEvent(m_peer, e);
+ } else {
+ QTestEventLoop::instance().exitLoop();
+ }
+ return true;
+}
+
+class EventTester : public QObject
+{
+public:
+ int foo(int bar);
+
+protected:
+ bool event(QEvent *e);
+};
+
+bool EventTester::event(QEvent *e)
+{
+ if (e->type() == QEvent::User+1)
+ return foo(e->type()) != 0;
+ return false;
+}
+
+int EventTester::foo(int bar)
+{
+ return bar + 1;
+}
+
+class EventsBench : public QObject
+{
+ Q_OBJECT
+
+private slots:
+ void initTestCase();
+ void cleanupTestCase();
+
+ void noEvent();
+ void sendEvent_data();
+ void sendEvent();
+ void postEvent_data();
+ void postEvent();
+};
+
+void EventsBench::initTestCase()
+{
+}
+
+void EventsBench::cleanupTestCase()
+{
+}
+
+void EventsBench::noEvent()
+{
+ EventTester tst;
+ int val = 0;
+ QBENCHMARK {
+ val += tst.foo(1);
+ }
+}
+
+void EventsBench::sendEvent_data()
+{
+ QTest::addColumn<bool>("filterEvents");
+ QTest::newRow("no eventfilter") << false;
+ QTest::newRow("eventfilter") << true;
+}
+
+void EventsBench::sendEvent()
+{
+ QFETCH(bool, filterEvents);
+ EventTester tst;
+ if (filterEvents)
+ tst.installEventFilter(this);
+ QEvent evt(QEvent::Type(QEvent::User+1));
+ QBENCHMARK {
+ QCoreApplication::sendEvent(&tst, &evt);
+ }
+}
+
+void EventsBench::postEvent_data()
+{
+ QTest::addColumn<bool>("filterEvents");
+ // The first time an eventloop is executed, the case runs radically slower at least
+ // on some platforms, so test the "no eventfilter" case to get a comparable results
+ // with the "eventfilter" case.
+ QTest::newRow("first time, no eventfilter") << false;
+ QTest::newRow("no eventfilter") << false;
+ QTest::newRow("eventfilter") << true;
+}
+
+void EventsBench::postEvent()
+{
+ QFETCH(bool, filterEvents);
+ PingPong ping;
+ PingPong pong;
+ ping.setPeer(&pong);
+ pong.setPeer(&ping);
+ if (filterEvents) {
+ ping.installEventFilter(this);
+ pong.installEventFilter(this);
+ }
+
+ QBENCHMARK {
+ // In case multiple iterations are done, event needs to be created inside the QBENCHMARK,
+ // or it gets deleted once first iteration exits and can cause a crash. Similarly,
+ // ping and pong need their counters reset.
+ QEvent *e = new QEvent(QEvent::User);
+ ping.resetCounter();
+ pong.resetCounter();
+ QCoreApplication::postEvent(&ping, e);
+ QTestEventLoop::instance().enterLoop( 61 );
+ }
+}
+
+QTEST_MAIN(EventsBench)
+
+#include "main.moc"