/*

* Copyright (c) 2003-2006 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:  Remote File System Plug-in implementation

*

*/

#ifndef CRSFWFSDIRCB_H

#define CRSFWFSDIRCB_H

//  INCLUDES

#include <f32fsys.h>

#include <s32file.h>

//#include "rsfwsession.h"

#include "rsfwinterface.h"

// CONSTANTS

// DATA TYPES

// FORWARD DECLARATIONS

// CLASS DECLARATIONS

/**

 *  Classes that a plug-in file system must implement. A plug-in 

 *  filesystem must implement CFileSystem, which is a factory class for 

 *  a file system. That class must create objects derived from CMountCB, 

 *  CFileCB, CDirCB and CFormatCB. These are defined in f32fsys.h

 *

 *  @lib eremotefs.fsy

 *  @since Series 60 3.2

 */

class CRsfwFsDirCB : public CDirCB

    {

public:   // Constructors and destructor

    /**

     * Static constructor.

     */      

    static CRsfwFsDirCB* NewL();

    /**

     * Destructor.

     */

    ~CRsfwFsDirCB();

public:   // New functions

    /**

     * Prepares the class to read directory entries from a local cache container file

     * @since Series 60 3.2

     * @param aPath path of the directory container in the local cache

     * @param aName the entries to be read from the directory, for example, "*"

     * @return 

     */

    void SetDirL( const TDesC& aPath, 

                  const TDesC& aName );

public:   // Functions from base classes

    /**

     * From CDirCB Gets information from the first suitable entry in the directory,

     *             starting from the current read position.

     * @since Series 60 3.2

     * @param anEntry Entry information object.

     * @return 

     */

    void ReadL( TEntry& anEntry );

private:

    /**

     * C++ default constructor.

     */

    CRsfwFsDirCB();

public:     // Data

    // the Fid of this dir 

    TFid iThisFid; 

private:    // Data

    // stream attached to the local cache container file

    RFileReadStream iDirContReadStream;

    // the entries to be read from the directory, for example, "*"

    HBufC* iMatch;

    // whether the cache container includes the contents the directory

    TBool iHasBeenFetched;

    // which entry position to read next

    TInt iEntryPos;   

    // at which stream position to read next

    TStreamPos iStreamPos;   

    // where to read if we must re-read the last entry to be read

    TStreamPos iPendingPos;

    }; 

#endif // CRSFWFSDIRCB_H

// End of File