diff -r f742655b05bf -r d38647835c2e voipplugins/ipapputils/voipeventlog/inc/voipeventlogengine.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voipplugins/ipapputils/voipeventlog/inc/voipeventlogengine.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,173 @@
+/*
+* Copyright (c) 2007-2007 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: 
+*
+*/
+
+
+#ifndef C_VOIPEVENTLOGENGINE_H
+#define C_VOIPEVENTLOGENGINE_H
+
+#include <e32base.h>
+
+class CRepository;
+class CVoipErrorEntry;
+
+/**
+ *  Engine class for VoIP event log API.
+ *  CVoipEventLogEngine do the real work for reading and
+ *  writing error from/to central repository
+ *
+ *  @lib voipeventlog.lib
+ *  @since S60 v3.2
+ */
+NONSHARABLE_CLASS(CVoipEventLogEngine) : public CBase
+  {
+  public:
+
+        /**
+         * Two-phased constructor.
+         */
+        static CVoipEventLogEngine* NewL();
+        static CVoipEventLogEngine* NewLC();
+
+        /**
+         * Destructor.
+         */
+        ~CVoipEventLogEngine();
+
+        /**
+         * Writes an error data to event log
+         *
+         * @since S60 v3.2
+         * @param aErrorEntry Error information
+         */
+        void WriteErrorL( const CVoipErrorEntry& aErrorEntry );
+
+        /**
+         * Reads an error informaiton from the log
+         *
+         * @since S60 v3.2
+         * @param aIndex the index of error to be read
+         * @param aErrorEntry in return, error information corresponding to aIndex
+         */
+        void ReadErrorL( TInt aIndex, CVoipErrorEntry& aErrorEntry );
+
+        /**
+         * Reads error count from the log
+         *
+         * @since S60 v3.2
+         * @param on return, error count
+         */
+        void ErrorCountL( TInt& aCount );
+
+        /**
+         * Reset all erros from the central repository.
+         *
+         * @since S60 v3.2
+         * @return  Operation code.
+         */
+        TInt ResetLogHistory ();
+
+        /**
+         * Starts transaction in central repository
+         *
+         * @since S60 v3.2
+         */
+        void BeginTransactionLC();
+
+        /**
+         * Commits changes in repository
+         *
+         * @since S60 v3.2
+         */
+        void CommitTransactionL();
+
+    private:
+
+        /**
+        * C++ default constructor.
+        */
+        CVoipEventLogEngine();
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+        /**
+         * Generate time stamp with current time
+         *
+         * @since S60 v3.2
+         * @param on return, current time stamp, e.g. 11/09/2007 14:19:40
+         */
+        void GenerateTimeStampL( TDes& aTimeStamp ) const;
+
+        /**
+         * Get latest index number
+         *
+         * @since S60 v3.2
+         * @return latest index number
+         */
+        TInt GetLatestIndexL();
+
+        /**
+         * Get new index number
+         *
+         * @since S60 v3.2
+         * @return new index number
+         */
+        TInt GetNewIndexL();
+
+        /**
+         * Get maximum error count
+         *
+         * @since S60 v3.2
+         * @return maximu error count
+         */
+        TInt GetMaxErrorCountL();
+
+        /**
+         * release semaphore, this function is used in custom cleanup
+         *
+         * @since S60 v3.2
+         * @param aEngine pointer to an object which is the target of the cleanup operation
+         */
+        static void ReleaseSemaphore( TAny* aEngine );
+
+        /**
+         * release semaphore
+         *
+         * @since S60 v3.2
+         */
+        void DoReleaseSemaphore();
+
+    private: // data
+        /**
+         * Central Repository object.
+         * Own.
+         */
+        CRepository* iRepository;
+
+        /**
+         * RSemaphore object.
+         * Own.
+         */
+        RSemaphore iSemaphore;
+
+  };
+
+#endif  // C_VOIPEVENTLOGENGINE_H
+
+