/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the test suite of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtTest/QtTest>+
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#include <qsystemsemaphore.h>+
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//TESTED_CLASS=+
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//TESTED_FILES=+
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+
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#define EXISTING_SHARE "existing"+
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#define LACKYLOC "../qsharedmemory/lackey"+
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#define LACKYWAITTIME 10000+
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+
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class tst_QSystemSemaphore : public QObject+
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{+
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    Q_OBJECT+
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+
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public:+
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    tst_QSystemSemaphore();+
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    virtual ~tst_QSystemSemaphore();+
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+
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public Q_SLOTS:+
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    void init();+
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    void cleanup();+
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+
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private slots:+
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    void key_data();+
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    void key();+
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+
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    void basicacquire();+
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    void complexacquire();+
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+
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    void basicProcesses();+
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+
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    void processes_data();+
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    void processes();+
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+
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    void undo();+
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    void initialValue();+
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+
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private:+
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    QSystemSemaphore *existingLock;+
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+
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    QString makeFile(const QString &resource)+
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    {+
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        QFile memory(resource);+
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        if (!memory.open(QIODevice::ReadOnly)) {+
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            qDebug() << "error reading resource" << resource;+
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            return QString();+
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        }+
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        QTemporaryFile *file = new QTemporaryFile;+
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        file->open();+
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        file->write(memory.readAll());+
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        tempFiles.append(file);+
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        file->flush();+
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#ifdef Q_OS_WINCE+
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        // flush does not flush to disk on Windows CE. It flushes it into its application+
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        // cache. Thus we need to close the file to be able that other processes(lackey) can read it+
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        QString fileName = file->fileName();+
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        file->close();+
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        return fileName;+
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#endif+
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        return file->fileName();+
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    }+
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+
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    QString acquire_js() { return makeFile(":/systemsemaphore_acquire.js"); }+
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    QString release_js() { return makeFile(":/systemsemaphore_release.js"); }+
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    QString acquirerelease_js() { return makeFile(":/systemsemaphore_acquirerelease.js"); }+
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    QList<QTemporaryFile*> tempFiles;+
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};+
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+
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tst_QSystemSemaphore::tst_QSystemSemaphore()+
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{+
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    if (!QFile::exists(LACKYLOC "/lackey"))+
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        qWarning() << "lackey executable doesn't exists!";+
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}+
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+
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tst_QSystemSemaphore::~tst_QSystemSemaphore()+
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{+
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    qDeleteAll(tempFiles);+
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}+
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+
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void tst_QSystemSemaphore::init()+
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{+
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    existingLock = new QSystemSemaphore(EXISTING_SHARE, 1, QSystemSemaphore::Create);+
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}+
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+
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void tst_QSystemSemaphore::cleanup()+
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{+
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    delete existingLock;+
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}+
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+
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void tst_QSystemSemaphore::key_data()+
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{+
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    QTest::addColumn<QString>("constructorKey");+
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    QTest::addColumn<QString>("setKey");+
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+
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    QTest::newRow("null, null") << QString() << QString();+
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    QTest::newRow("null, one") << QString() << QString("one");+
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    QTest::newRow("one, two") << QString("one") << QString("two");+
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}+
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+
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/*!+
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    Basic key testing+
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 */+
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void tst_QSystemSemaphore::key()+
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{+
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    QFETCH(QString, constructorKey);+
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    QFETCH(QString, setKey);+
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+
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    QSystemSemaphore sem(constructorKey);+
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    QCOMPARE(sem.key(), constructorKey);+
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    QCOMPARE(sem.error(), QSystemSemaphore::NoError);+
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    QCOMPARE(sem.errorString(), QString());+
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+
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    sem.setKey(setKey);+
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    QCOMPARE(sem.key(), setKey);+
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    QCOMPARE(sem.error(), QSystemSemaphore::NoError);+
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    QCOMPARE(sem.errorString(), QString());+
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}+
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+
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void tst_QSystemSemaphore::basicacquire()+
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{+
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    QSystemSemaphore sem("QSystemSemaphore_basicacquire", 1, QSystemSemaphore::Create);+
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    QVERIFY(sem.acquire());+
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    QCOMPARE(sem.error(), QSystemSemaphore::NoError);+
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    QVERIFY(sem.release());+
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    QCOMPARE(sem.error(), QSystemSemaphore::NoError);+
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    QCOMPARE(sem.errorString(), QString());+
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}+
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+
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void tst_QSystemSemaphore::complexacquire()+
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{+
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    QSystemSemaphore sem("QSystemSemaphore_complexacquire", 2, QSystemSemaphore::Create);+
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    QVERIFY(sem.acquire());+
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    QVERIFY(sem.release());+
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    QVERIFY(sem.acquire());+
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    QVERIFY(sem.release());+
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    QVERIFY(sem.acquire());+
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    QVERIFY(sem.acquire());+
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    QVERIFY(sem.release());+
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    QVERIFY(sem.release());+
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    QCOMPARE(sem.error(), QSystemSemaphore::NoError);+
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    QCOMPARE(sem.errorString(), QString());+
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}+
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+
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void tst_QSystemSemaphore::basicProcesses()+
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{+
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#if defined (Q_OS_SYMBIAN) && defined(Q_CC_NOKIAX86)+
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    QSKIP("Cannot launch multiple Qt processes in Symbian emulator", SkipAll);+
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#endif+
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    QSystemSemaphore sem("store", 0, QSystemSemaphore::Create);+
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+
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    QStringList acquireArguments = QStringList() << acquire_js();+
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    QStringList releaseArguments = QStringList() << release_js();+
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    QProcess acquire;+
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    acquire.setProcessChannelMode(QProcess::ForwardedChannels);+
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+
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    QProcess release;+
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    release.setProcessChannelMode(QProcess::ForwardedChannels);+
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+
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    acquire.start(LACKYLOC "/lackey", acquireArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state() == QProcess::Running);+
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    acquire.kill();+
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    release.start(LACKYLOC "/lackey", releaseArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    release.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state() == QProcess::NotRunning);+
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}+
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+
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void tst_QSystemSemaphore::processes_data()+
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{+
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    QTest::addColumn<int>("processes");+
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    for (int i = 0; i < 5; ++i) {+
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        QTest::newRow("1 process") << 1;+
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        QTest::newRow("3 process") << 3;+
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        QTest::newRow("10 process") << 10;+
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    }+
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}+
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+
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void tst_QSystemSemaphore::processes()+
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{+
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#if defined (Q_OS_SYMBIAN) && defined(Q_CC_NOKIAX86)+
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    QSKIP("Cannot launch multiple Qt processes in Symbian emulator", SkipAll);+
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#endif+
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    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);+
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+
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    QFETCH(int, processes);+
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    QStringList scripts;+
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    for (int i = 0; i < processes; ++i)+
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        scripts.append(acquirerelease_js());+
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+
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    QList<QProcess*> consumers;+
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    for (int i = 0; i < scripts.count(); ++i) {+
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        QStringList arguments = QStringList() << scripts.at(i);+
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        QProcess *p = new QProcess;+
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        p->setProcessChannelMode(QProcess::ForwardedChannels);+
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        consumers.append(p);+
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        p->start(LACKYLOC "/lackey", arguments);+
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    }+
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+
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    while (!consumers.isEmpty()) {+
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        consumers.first()->waitForFinished();+
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        QCOMPARE(consumers.first()->exitStatus(), QProcess::NormalExit);+
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        QCOMPARE(consumers.first()->exitCode(), 0);+
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        delete consumers.takeFirst();+
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    }+
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}+
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+
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void tst_QSystemSemaphore::undo()+
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{+
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#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)+
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    QSKIP("This test only checks a unix behavior", SkipSingle);+
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#endif+
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+
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    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);+
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+
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    QStringList acquireArguments = QStringList() << acquire_js();+
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    QProcess acquire;+
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    acquire.setProcessChannelMode(QProcess::ForwardedChannels);+
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    acquire.start(LACKYLOC "/lackey", acquireArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state()== QProcess::NotRunning);+
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+
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    // At process exit the kernel should auto undo+
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+
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    acquire.start(LACKYLOC "/lackey", acquireArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state()== QProcess::NotRunning);+
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}+
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+
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void tst_QSystemSemaphore::initialValue()+
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{+
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#if defined (Q_OS_SYMBIAN) && defined(Q_CC_NOKIAX86)+
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    QSKIP("Cannot launch multiple Qt processes in Symbian emulator", SkipAll);+
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#endif+
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    QSystemSemaphore sem("store", 1, QSystemSemaphore::Create);+
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+
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    QStringList acquireArguments = QStringList() << acquire_js();+
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    QStringList releaseArguments = QStringList() << release_js();+
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    QProcess acquire;+
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    acquire.setProcessChannelMode(QProcess::ForwardedChannels);+
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+
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    QProcess release;+
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    release.setProcessChannelMode(QProcess::ForwardedChannels);+
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+
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    acquire.start(LACKYLOC "/lackey", acquireArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state()== QProcess::NotRunning);+
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+
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    acquire.start(LACKYLOC "/lackey", acquireArguments << "2");+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state()== QProcess::Running);+
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    acquire.kill();+
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+
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    release.start(LACKYLOC "/lackey", releaseArguments);+
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    acquire.waitForFinished(LACKYWAITTIME);+
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    release.waitForFinished(LACKYWAITTIME);+
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    QVERIFY(acquire.state()== QProcess::NotRunning);+
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}+
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QTEST_MAIN(tst_QSystemSemaphore)+
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#include "tst_qsystemsemaphore.moc"+
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+
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