/*

 * 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