diff -r 000000000000 -r 094583676ce7 wvuing/wvlogger/Inc/MCALoggerMessageHeader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvlogger/Inc/MCALoggerMessageHeader.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,94 @@
+/*
+* 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:  Interface for header information of history file
+*
+*/
+
+
+#ifndef __MCALOGGERMESSAGEHEADER_H__
+#define __MCALOGGERMESSAGEHEADER_H__
+
+//INCLUDES
+
+#include <e32std.h>
+#include <e32base.h>
+
+//FORWARD DECLARATIONS
+
+class RWriteStream;
+
+// CLASS DECLARATION
+
+/**
+ *  Interface for header information of history file
+ *
+ *  @lib CALogger.dll
+ *  @since 2.1
+ */
+class MCALoggerMessageHeader
+    {
+    public:
+
+        /**
+         * Destructor.
+         */
+        virtual ~MCALoggerMessageHeader() {};
+
+    public: // Interface
+
+        /**
+         * Internalize the contact instance data.
+         * Used by MCALoggerFactory.
+         * @since 2.1
+         * @param aStream The stream into which to internalize
+         */
+        virtual void InternalizeL( RReadStream& aStream ) = 0;
+
+        /**
+         * Externalize the contact instance data.
+         * Used by CCALoggerWriter
+         * @since 2.1
+         * @param aStream The stream into which to externalize
+         */
+        virtual void ExternalizeL( RWriteStream& aStream ) const = 0;
+
+        /**
+         *	Disk space needed for saving message in externalize.
+         *	@return Memory need in bytes.
+         */
+        virtual TInt MessageSizeInBytesL() const = 0;
+
+        /**
+         *	Get filename
+         *	@since 2.1
+         *	@return Real filename
+         */
+        virtual const TDesC& FilenameL() = 0;
+
+        /**
+         *	Set filename
+         *	@since 2.1
+         *	@param aFilename Filename to set
+         */
+        virtual void SetFilenameL( const TDesC& aFilename ) = 0;
+
+        /**
+         *	This triggers footer information like time when logging ends.
+         */
+        virtual void EndLogging() = 0;
+    };
+
+#endif      // __MCALOGGERMESSAGEHEADER_H__
+
+// End of File
\ No newline at end of file