/*

* Copyright (c) 2005-2009 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:  Declaration of CMmapControllerNode

*

*/

#ifndef MMAP_CONTROLLER_NODE_H

#define MMAP_CONTROLLER_NODE_H

//  INCLUDES

#include <e32base.h>

#include <e32std.h>

#include "mmapmemorynode.h"

#include "base.h"

// CONSTANTS

// MACROS

// FORWARD DECLARATIONS

class CMmapMemoryNode;

// DATA TYPES

// FUNCTION PROTOTYPES

// CLASS DECLARATION

/*

*  This class is responsible to managing the memory mapped nodes.

*  This will maintain the mapped memory in a list format.

*  @since MRT 2.0

*/

NONSHARABLE_CLASS ( CMmapControllerNode ): public BBase

    {

public:

    /*

    * 1st phase constructor. 

    */

    static CMmapControllerNode * NewL();

    /*

    * Default destructor.

    */

    ~CMmapControllerNode();

    /*

    * To create a mapped memory and add in mmap node list

    */

    static TAny* AddMmapNodeL(struct _reent *r, size_t len, int flag, \

					   int shmflg, int fildes, off_t offset, size_t maplen);

	/*

    * To unmap a mapped memory and delete from mmap node list

    */

    int DeleteMmapNode(TAny* aAddr, int& anerror);

    /*

    * To sync a mapped memory into the file below

    */

    int SyncMmapNode(TAny* aAddr, size_t len, int flags, int& anerror);

    /*

    * To modify protection mode of a mapped memory.

    */

    int ChprotMmapNode(const TAny* addr, size_t len, int prot, int& anerrno);

    /*

    * To delete a mapped memory from node list.

    */

    static void RemoveControllerL(void *p);

private:

    /*

    * Default constructor.

    */

    CMmapControllerNode();

    /*

    * 2nd phase constructor.    

    */

    void ConstructL();

private: // data    

    TSglQue<CMmapMemoryNode> iMmapQueue;

    TSglQueIter<CMmapMemoryNode> iMmapQueueIter;

    };

#endif // MMAP_CONTROLLER_NODE_H

// End of File