/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0""

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

#ifndef CPWATCHDOG_H

#define CPWATCHDOG_H

#include <QObject>

#include <QVector>

#define gWatchDog CpWatchDog::instance()

#define BEGIN_WATCHDOG_QUARANTINE(PLUGINID) \

        gWatchDog->quarantine(PLUGINID);

#define END_WATCHDOG_QUARANTINE(PLUGINID) \

        gWatchDog->removeFromQuarantine(PLUGINID);

class QSettings;

class CpWatchDog : public QObject

{

    Q_OBJECT

public:

    static CpWatchDog *instance();

    void quarantine(int uid);

    void removeFromQuarantine(int uid);

    bool isActive() const;

    bool wasCleanExit() const;

    void reportCleanExit();

    bool isInBlackList(int uid);

private:

    void init();

    void readState();

    void storeState();

    void readQuarantine();

    void storeQuarantine();

    void readBlackList();

    void storeBlackList();

    void updateBlackListedPluginRunCounters();

public slots:

    void destroy();

private:

    Q_DISABLE_COPY(CpWatchDog)

    CpWatchDog();

    virtual ~CpWatchDog();

private:

    struct PluginQuarantine

    {

        PluginQuarantine();

        void read(QSettings &settings);

        void store(QSettings &settings);

        int mUid;

        int mRunsAfterCrash;

    };

private:

    bool mActive;

    int mCrashCounter;

    bool mAppRunning;

    int mMaxPluginBlackListedRuns;

    int mWatchdogActivationLimit;

    QVector<PluginQuarantine> mBlackList;

    QVector<int> mQuarantine;

    static CpWatchDog *self;

};

#endif /* CPWATCHDOG_H */