diff -r 000000000000 -r d0791faffa3f mtpdataproviders/mtpimagedp/mediasyncserver/inc/rmediasyncserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpdataproviders/mtpimagedp/mediasyncserver/inc/rmediasyncserver.h	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,156 @@
+// Copyright (c) 2009 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:
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef RMEDIASYNCSERVER_H_
+#define RMEDIASYNCSERVER_H_
+
+#include <e32std.h>
+#include "cmediasyncserverdef.h"
+
+struct TMDSNotification
+    {
+    TUint  objectId;
+    TUint8 changeType;
+    TUint8 activeSchedulerWait;
+    TUint8 reserved[2];
+    };
+
+class CMediaSyncDataReader : public CBase
+    {
+public:
+    static CMediaSyncDataReader* NewL(const RChunk& aChunk);
+    /** virtual C++ destructor */
+    IMPORT_C ~CMediaSyncDataReader();    
+    
+    IMPORT_C TInt  Count();
+    IMPORT_C TBool HasNext();
+    IMPORT_C void  GetNextL(TUint32& aObjectId, TUint8& aType, TPtr16& aUri);
+    
+private:
+    /** C++ constructor initialises */
+    CMediaSyncDataReader();
+    void ConstructL(const RChunk& aChunk);
+    
+private:
+    TDataHeaderInfo* iHeaderInfo;
+    TUint8*          iReadBase;
+    TInt             iOffset;
+    TInt             iCurrentIdx;
+    };
+
+class RMediaSyncServer : public RSessionBase
+    {    
+public:
+    IMPORT_C RMediaSyncServer();
+    
+    /**
+    * Starts up MediaSyncServer
+    */
+    IMPORT_C TInt Startup();
+    
+    /**
+    * Shut down MediaSyncServer
+    */
+    IMPORT_C void Shutdown();    
+
+    /**
+    * Connects to MediaSyncServer, does not start up MediaSyncServer if it is
+    * not running
+    * @return KErrNone on successfull connection, 
+    *         KMediaSyncServerCleanupYourDatabase on successful connection, 
+    *         but the database needs to be resynched. The client must empty
+    *         MTP database on the objects under its control before reading 
+    *         the change information since it will get everything that is in
+    *         MDS.
+    *         Systen wide error code if the connection fails.
+    */        
+    IMPORT_C TInt Connect();
+    
+    /**
+    * Client should call this when it has detected that the databases are 
+    * out of sync or that its database is corrupted. This will lead MSS to 
+    * reread everything from the MDS after all the session were closed and 
+    * at next connection Connect to return KMediaSyncServerCleanupYourDatabase 
+    * to all dataproviders.
+    * @param aNeedFullSync ETrue if the MSS DB file is corrupt and the client need to fully sync with MDE    
+    * @return KErrNone if successful, otherwise one of the system-wide error codes
+    *     
+    */
+    IMPORT_C TInt NeedFullSync(TBool& aNeedFullSync);
+    
+    /**
+    * Clear full synchronization flag from MSS   
+    * @return KErrNone if successful, otherwise one of the system-wide error codes
+    *     
+    */        
+    IMPORT_C TInt ClearFullSync();
+
+    /**        
+    * This methods returns changes and their type. It only returns one type of 
+    * changes at one call. Removals will be returned first then Additions, 
+    * then Changes. The change information will be deleted from the DB when returned.
+    * If an object is both added, changed and then deleted between the 
+    * connections, no information on it is returned, on the other hand if 
+    * object is first deleted the object with a same name is added, both 
+    * deletion and addition entry are available.
+    *
+    * Moving objects are treated as deletion and addition (keeping the metadata if possible)
+    *
+    * @param aNotifications on return the array of MDE notifications 
+    * @param aIsFinished ETrue if this array is the last one for MDE notifications    
+    * @param aStatus async call, KErrNone if changes received, 
+    *                            KErrNotFound if there are no changes,  
+    *                            otherwise another system wide error code.
+    *
+    */
+    IMPORT_C void GetChangesL(CMediaSyncDataReader*& aDataReader, TBool& aIsFinished, TRequestStatus& aStatus, TInt aMaxFetchCount = 512);
+
+    /**
+    * Remove all recodes from MSS
+    */        
+    IMPORT_C void RemoveAllRecords();
+    
+    /**
+    * Enable MSS subscribes MDS notifications
+    * @return KErrNone if successful, otherwise one of the system-wide error codes
+    */         
+    IMPORT_C TInt EnableMonitor();
+    
+    /**
+    * Disable MSS subscribes MDS notifications
+    * @return KErrNone if successful, otherwise one of the system-wide error codes
+    */        
+    IMPORT_C TInt DisableMonitor();
+    
+    IMPORT_C void Close();
+        
+private:    
+    TInt GetGlobalSharedHeapHandle();
+    void RelaseGlobalSharedHeap();
+    
+private:
+    TBool  iHasSharedHeap; 
+    
+    /** Handle to the Global Shared Heap */
+    RChunk iGlobalSharedHeap;    
+    };
+
+
+#endif /*RMEDIASYNCSERVER_H_*/