--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/psmservices/psmserver/inc/engine/psmbackupstorage.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,132 @@
+/*
+* Copyright (c) 2007 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:  PSM backup storage class.
+*
+*/
+
+
+#ifndef PSMBACKUPSTORAGE_H
+#define PSMBACKUPSTORAGE_H
+
+#include <e32base.h>
+#include "psmstorage.h"
+
+/**
+ *  PSM Backup storage class
+ *
+ *  Resposible for backin up previous PSM configurations and 
+ *  also responsible to get correct configurations when returning back
+ *  to normal mode. 
+ *
+ *  @since S60 5.0
+ */
+class CPsmBackupStorage : public CPsmStorage
+    {
+public:
+
+    /**
+     * Creates a new PSM storage.
+     *
+     * @return A pointer to the created object.
+     */
+    static CPsmBackupStorage* NewL( TPsmsrvMode iMode, RFs& aFile );
+    static CPsmBackupStorage* NewLC( TPsmsrvMode iMode, RFs& aFile );
+
+    /**
+     * Destructor.
+     */
+    virtual ~CPsmBackupStorage();
+
+    /**
+	 * Starts parsing config file. This function blocks until file is parsed
+     */
+	void InitStorageL( const TUint32 aStorageUid );
+
+    /**
+	 * Closes storage file.
+     */
+	void CloseStorageL();
+
+    /**
+     * Backsup configuration to backup storage
+     */
+    void BackupConfigurationL( const RConfigInfoArray& aConfigArray );
+
+    /**
+     * Lists set items of a specific passive configuration
+     */
+    void ListPassiveConfigSetL( RConfigInfoArray& aPsmConfigArray );
+
+    /**
+     * Lists set items of a specific passive configuration
+     */
+    void ListCurrentSettingSetL( RConfigInfoArray& aPsmConfigArray );
+
+    /**
+     * Updates backup storage with new values
+     */
+    void UpdateCurrentSettingSetL( const RConfigInfoArray& aPsmConfigArray );
+
+private:
+
+    /**
+     * C++ constructor.
+     */
+    CPsmBackupStorage( TPsmsrvMode iMode, RFs& aFile );
+
+    /**
+     * By default Symbian 2nd phase constructor is private.
+     */
+    void ConstructL();
+
+    /**
+     * Initializes root elements when storage file has been parsed
+     */
+    void InitRootElementsL();
+
+    /**
+     * Helper function to get correct set item.
+     *
+     * @param aConfigSet reference to configuration set XML element where to find set item
+     * @param aKey Identifier of the set element to find
+     * @return XML element if set is found, otherwise leaves with KErrNotFound
+     */	 
+    TXmlEngElement FindSetItemL( const TXmlEngElement& aConfigSet, const TInt aKey );    
+
+    /**
+     * Checks does backup folder exist and creates if not
+     */
+    void CheckBackupLocation();
+
+    /**
+     * Generates the location of the backup file in descriptor. 
+     * contains <drive letter>+<private path>+<file name>+<extension>
+     */
+    void BackupFileLocation( TDes& aLocation );
+
+    /**
+     * Backsup configuration to backup storage
+     */
+    void UpdateBackupL( const RConfigInfoArray& aConfigArray, const TInt aMode );
+
+private:    // Data
+
+    /**
+     * Indicates is there changes in XML file
+     */
+    TBool iChangesMade;
+    
+    };
+
+#endif // PSMBACKUPSTORAGE_H