diff -r 491b3ed49290 -r 65326cf895ed filesystemuis/memscaneng/serverinc/msengscannerbase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/filesystemuis/memscaneng/serverinc/msengscannerbase.h	Wed Sep 01 12:31:07 2010 +0100
@@ -0,0 +1,159 @@
+/*
+* Copyright (c) 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: 
+*     Base class for scanner classes.
+*
+*
+*/
+
+
+#ifndef MSENGSCANNERBASE_H
+#define MSENGSCANNERBASE_H
+
+
+
+
+// USER INCLUDES
+#include "mseng.hrh"
+#include "msenginfoarray.h"
+#include "msengscanobserver.h" 
+
+
+
+// CONSTANTS
+const TInt KDirectoryListGranularity = 10;
+
+// CLASS DECLARATION
+
+/**
+*  Base class for scanner classes.
+*  
+*/
+class CMsengScannerBase : public CActive
+    {
+    public:  // Constructors and destructor
+ 
+        /**
+        *
+        */
+        enum TStepResult
+            {
+            ECompleteRequest = 0,
+            ERequestIssuedInternally,
+            EScanComplete
+            };
+        
+        /**
+        * C++ default constructor.
+        */
+        CMsengScannerBase(MMsengScannerObserver& aObserver, 
+            CMsengInfoArray& aInfoArray, RFs& aFsSession);
+        
+        /**
+        * Destructor.
+        */
+        virtual ~CMsengScannerBase();
+
+	protected: // Internal functions
+
+        /**
+        * Do one incremental scanning step
+        */
+        virtual TStepResult PerformStepL() = 0;
+
+        /**
+        * Complete this active object's request and set it active again
+        */
+        void CompleteRequest(TInt aCode = KErrNone);
+
+        /**
+        * Add new value in bytes to the amount of data found with this UID.
+        * @param aUid The UID type.
+        * @param aSize The size of the file with this UID.
+        */
+        inline void AddSizeByUidL(TUidTypes aUid, TInt64 aSize);
+
+        /**
+        * Add new value in bytes to the amount of data found with this UID.
+        * @param aUid The UID type.
+        * @param aSize The size of the file with this UID.
+        */
+        inline void AddSizeByExtL(TExtTypes aExt, TInt64 aSize);
+
+        /**
+        * Query if the directory is in the list of directories to be 
+        * excluded from scanning, or is a subdirectory of one.
+        * @param aDirectory Path of the directory
+        */
+        inline TBool IsExcludedDir(const TDesC& aDirectory);
+
+        /**
+        * Query if the directory is in the list of directories to be 
+        * excluded from scanning, or is a subdirectory of one.
+        * @param aDirectory Path of the directory
+        */
+        inline TBool IsSpecialDir(const TDesC& aDirectory);
+
+        /**
+        * Access the file server session
+        */
+        inline RFs& FsSession();
+
+        /**
+        * Access the information array
+        */
+        inline CMsengInfoArray& InfoArray();
+
+        /**
+        * Access the observer of this scanner
+        */
+        inline MMsengScannerObserver& ScannerObserver();
+
+    private: // from CActive
+
+        /**
+        *
+        */
+        virtual void RunL();
+
+        /**
+        *
+		*/
+        virtual void DoCancel();
+
+        /**
+        *
+        */
+        virtual TInt RunError(TInt aError);
+
+    private:
+
+        // Prohibit copy constructor if not deriving from CBase.
+        CMsengScannerBase( const CMsengScannerBase& );
+        // Prohibit assigment operator if not deriving from CBase.
+        CMsengScannerBase& operator= ( const CMsengScannerBase& );
+
+
+    private:
+
+        MMsengScannerObserver& iObserver;
+        CMsengInfoArray& iInfoArray;
+        RFs& iFsSession;
+    };
+
+#include "msengscannerbase.inl"
+
+#endif      // CMSENGSCANNERBASE_H   
+            
+// End of File