/*

* Copyright (c) 2005-2006 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:  State machine for fetching and caching files and directories

*

*/

#ifndef C_RSFW_FETCHANDCACHESTATEMACHINE_H

#define C_RSFW_FETCHANDCACHESTATEMACHINE_H

#include "rsfwwaitnotestatemachine.h"

/**

 *  State machine for fetching and caching files and directories

 *

 */

class CRsfwFetchAndCacheStateMachine : public CRsfwWaitNoteStateMachine

    {

public:

    CRsfwFetchAndCacheStateMachine();

    TState* ErrorOnStateExit(TInt aError);

public:

    // STATES

    // Before DoFetch we call UpdateAttributesL,

    // where it is decided whether cached data is used...

    // so this operation has only one state that fetches the data -

    // possibly from the server or then from the local cache

    class TFetchDataState : public CRsfwFetchAndCacheStateMachine::TState

        {

    public:

        TFetchDataState(CRsfwFetchAndCacheStateMachine* aOperation);

        void EnterL();

        TState* CompleteL();

        TState* ErrorL(TInt aCode);

    private:

        CRsfwFetchAndCacheStateMachine* iOperation;

        };

public:

    TState* CompleteRequestL(TInt aError);

public:

    // input params

    // the first byte requested

    // = the current cached size

    TInt iFirstByte;

    // output params:

    // last byte of the container file after fetch

    TInt iLastByte;

    // directory entries, when used to fetch directory contents...

    RPointerArray<CRsfwDirEnt> iDirEnts;

    // length of the data fetched

    TInt iLength;

    };

#endif // C_RSFW_FETCHANDCACHESTATEMACHINE_H