diff -r 000000000000 -r ff3b6d0fd310 cbs/CbsServer/ServerInc/CbsUtils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cbs/CbsServer/ServerInc/CbsUtils.h	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2003 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:  This file contains the header file of the CbsUtils class
+*
+*/
+
+
+#ifndef CBSUTILS_H
+#define CBSUTILS_H
+
+// INCLUDES
+#include <e32std.h>
+  
+// FORWARD DECLARATIONS
+class RResourceFile;
+class RFs;
+
+// CLASS DECLARATION
+
+/**
+*   Namespace structure for CBS helper functions.
+*/
+class CbsUtils 
+    {
+    public:
+
+        /**
+        * Searches and opens the DLL default resource file. 
+        * Calls FindAndOpenResourceFileLC.
+        *
+        * @param   aFs         open file server handle.
+        * @param   aResFile    resource file to open. If open is succesful, resource file
+        *                      close operation is pushed on to the cleanup stack.
+        *
+        * @see CbsUtils::FindAndOpenResourceFileLC
+        */
+        static void FindAndOpenDefaultResourceFileLC
+            ( RFs& aFs, 
+            RResourceFile& aResFile );
+
+        /**
+        *   Leaves with KErrDiskFull if writing aBytesToWrite bytes 
+        *   to the Flash File System would reduce the free space on FFS 
+        *   under the critical level.
+        *
+        *   Used before every FFS write operation.
+        *
+        *   @param   aBytesToWrite      Number of bytes that are required 
+        *                               to write to FFS
+        *   @param   aFs                Open file server session
+        *
+        */
+        static void FFSCriticalLevelCheckL( const TInt aBytesToWrite, RFs& aFs );
+        
+        /**
+        *   Returns with KTrue if there is memory enough to allocate memory 
+        *   for aBytesToWrite bytes.
+        *
+        *   Used before every topic allocation operation.
+        *
+        *   @param   aBytesToWrite      Number of bytes that are required 
+        *                               to allocation
+        *
+        */
+        static TBool RamMemCriticalLevelCheckL( const TInt aBytesToWrite);
+
+        /**
+        *   Leaves with KErrDiskFull if writing aBytesToWrite bytes 
+        *   to the RAM File System would reduce the free space on RAM 
+        *   under the critical level.
+        *
+        *   Used before every RAM write operation.
+        *
+        *   @param aFileName            File whose volume should be checked.
+        *   @param aBytesToWrite        Number of bytes that are required
+        *                               to write to RAM
+        *   @param aFs                  Open file server session
+        */
+        static void VolumeCriticalLevelCheckL( 
+            const TDesC& aFileName,
+            TInt aBytesToWrite, const RFs& aFs );
+
+        /**
+        *   Returns ETrue, if the file aFile exists.
+        *   
+        *   The caller has to provide a file server session to this method.
+        *
+        *   @param aFs          Open file server session
+        *   @param aFile        File name and path
+        *   @return             ETrue, if the file exists.
+        */
+        static TBool ExistsL( const RFs& aFs, const TDesC& aFile );
+
+        /**
+        *   Deletes the given file.
+        *
+        *   @param  aFs         Open file server session
+        *   @param  aFile       Filename
+        */
+        static void DeleteFileL( RFs& aFs, const TDesC& aFile );
+
+private:
+    // Prohibited default constructor
+    CbsUtils();
+
+    // Prohibited copy constructor
+    CbsUtils( const CbsUtils& );
+    
+    // Prohibited assignment operator
+    CbsUtils& operator=( const CbsUtils& );
+
+    };
+
+#endif  // CBSUTILS_H
+
+// End of File
+
+