/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/QtCore>
#include <QtTest/QtTest>
#include <QtDBus/QtDBus>

#include "./serverobject.h"

static const char serviceName[] = "com.trolltech.autotests.performance";
static const int runTime = 500;

class tst_QDBusPerformance: public QObject
{
    Q_OBJECT
    QProcess proc;
    QDBusInterface *target;

    QDBusInterface *remote;
    QDBusInterface *local;

    bool executeTest(const char *funcname, int size, const QVariant &data);

public slots:
    void initTestCase_data();
    void initTestCase();
    void init();

private slots:
    void callSpeed();

    void oneWay_data();
    void oneWay();
    void oneWayVariant_data();
    void oneWayVariant();

    void roundTrip_data();
    void roundTrip();
    void roundTripVariant_data();
    void roundTripVariant();
};
Q_DECLARE_METATYPE(QVariant)

void tst_QDBusPerformance::initTestCase()
{
#ifdef Q_OS_WIN
    proc.start("server");
#else
    proc.start("./server/server");
#endif
    QVERIFY(proc.waitForStarted());

    QDBusConnection con = QDBusConnection::sessionBus();
    QVERIFY(con.isConnected());

    connect(con.interface(), SIGNAL(serviceOwnerChanged(QString,QString,QString)),
            &QTestEventLoop::instance(), SLOT(exitLoop()));
    QTime timer;
    timer.start();

    while (timer.elapsed() < 5000) {
        QTestEventLoop::instance().enterLoop(5);
        if (con.interface()->isServiceRegistered(serviceName))
            break;
    }
    QVERIFY(con.interface()->isServiceRegistered(serviceName));

    remote = new QDBusInterface(serviceName, "/", "com.trolltech.autotests.Performance", con, this);
    QVERIFY(remote->isValid());

    new ServerObject("/", con, this);
    local = new QDBusInterface(con.baseService(), "/", "com.trolltech.autotests.Performance", con, this);
    QVERIFY(local->isValid());
}

void tst_QDBusPerformance::initTestCase_data()
{
    QTest::addColumn<bool>("loopback");

    QTest::newRow("normal") << false;
    QTest::newRow("loopback") << true;
}

void tst_QDBusPerformance::init()
{
    QFETCH_GLOBAL(bool, loopback);
    if (loopback)
        target = local;
    else
        target = remote;
}

void tst_QDBusPerformance::callSpeed()
{
    QTime timer;

    int callCount = 0;
    timer.start();
    while (timer.elapsed() < runTime) {
        QDBusReply<void> reply = target->call("nothing");
        QVERIFY(reply.isValid());

        ++callCount;
    }
    qDebug() << callCount << "calls in" << timer.elapsed() << "ms:"
             << (callCount * 1000.0 / timer.elapsed()) << "calls/sec";
}

bool tst_QDBusPerformance::executeTest(const char *funcname, int size, const QVariant &data)
{
    QTime timer;

    int callCount = 0;
    qint64 transferred = 0;
    timer.start();
    while (timer.elapsed() < runTime) {
        QDBusMessage reply = target->call(funcname, data);
        if (reply.type() != QDBusMessage::ReplyMessage)
            return false;

        transferred += size;
        ++callCount;
    }
    qDebug() << transferred << "bytes in" << timer.elapsed() << "ms"
             << "(in" << callCount << "calls):"
             << (transferred * 1000.0 / timer.elapsed() / 1024 / 1024) << "MB/s";

    return true;
}

void tst_QDBusPerformance::oneWay_data()
{
    QTest::addColumn<QVariant>("data");
    QTest::addColumn<int>("size");

    QByteArray ba(256, 'a');
    while (ba.size() < 8193) {
        QTest::newRow(QString("%1-byteArray").arg(ba.size()).toAscii()) << qVariantFromValue(ba) << ba.size();
        ba += ba;
    }

    QString s(256, QLatin1Char('a'));
    while (s.size() < 8193) {
        QTest::newRow(QString("%1-string").arg(s.size()).toAscii()) << qVariantFromValue(s) << s.size();
        s += s;
    }
}

void tst_QDBusPerformance::oneWay()
{
    QFETCH(QVariant, data);
    QFETCH(int, size);

    QVERIFY(executeTest("size", size, data));
}

void tst_QDBusPerformance::oneWayVariant_data()
{
    oneWay_data();
}

void tst_QDBusPerformance::oneWayVariant()
{
    QFETCH(QVariant, data);
    QFETCH(int, size);

    QVERIFY(executeTest("size", size, qVariantFromValue(QDBusVariant(data))));
}

void tst_QDBusPerformance::roundTrip_data()
{
    oneWay_data();
}

void tst_QDBusPerformance::roundTrip()
{
    QFETCH(QVariant, data);
    QFETCH(int, size);

    QVERIFY(executeTest("echo", size, data));
}

void tst_QDBusPerformance::roundTripVariant_data()
{
    oneWay_data();
}

void tst_QDBusPerformance::roundTripVariant()
{
    QFETCH(QVariant, data);
    QFETCH(int, size);

    QVERIFY(executeTest("echo", size, qVariantFromValue(QDBusVariant(data))));
}

QTEST_MAIN(tst_QDBusPerformance)
#include "tst_qdbusperformance.moc"