diff -r 7fdc9a71d314 -r 8ad140f3dd41 hti/hti_plat/hti_api/inc/HtiServicePluginInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/hti_plat/hti_api/inc/HtiServicePluginInterface.h	Wed Oct 13 16:17:58 2010 +0300
@@ -0,0 +1,115 @@
+/*
+* 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:  Interface defenition for HTI services
+*
+*/
+
+
+#ifndef SERVICEPLUGININTERFACE_H__
+#define SERVICEPLUGININTERFACE_H__
+
+#include <ecom/ecom.h>
+
+#include <HtiDispatcherInterface.h>
+
+const TUid KHTIServiceInterfaceUid = {0x1020DEB7};
+
+
+class CHTIServicePluginInterface : public CBase, public MHtiMemoryObserver
+    {
+public: //ECom specific methods (implemented as inline)
+
+    /**
+    * Wraps ECom object instantitation
+    * plug-in loaded by its UID
+    *
+    * @param aUID service plugin implementation UDI
+    */
+    static CHTIServicePluginInterface* NewL(const TUid aUID);
+
+    /**
+    * Wraps ECom object instantitation
+    * default resovler is used
+    *
+    * @param aMatchString service plugin name
+    */
+    static CHTIServicePluginInterface* NewL(const TDesC8& aMatchString);
+
+    /**
+    * Wraps ECom object destruction
+    */
+    virtual ~CHTIServicePluginInterface();
+
+public: //Comm plugin interface methods
+
+    /**
+    * This method is called by framework after the plugin was loaded and
+    * iDispatcher set.
+    */
+    virtual void InitL(){};
+
+    /**
+    * Result indicates eiterh plug-in is able to process request
+    * (e.g. a plug-in doesn't have an outstanding request to async service).
+    * Framework calls this method before calling ProcessMessageL().
+    * If plug-in is busy, request will be dispatched later.
+    * Typically, AO's CActive::IsActive() can be used
+    * in a overriden implementation.
+    * Default implementation returns EFalse.
+    */
+    virtual TBool IsBusy();
+
+    /**
+    * Interface service
+    * implementation of service, should return ASAP.
+    * aMessage contan is service specific.
+    *
+    * @param aMessage message body destinated to a servive
+    * @param aPriority message priority
+    */
+    virtual void ProcessMessageL(const TDesC8& aMessage,
+                                THtiMessagePriority aPriority) = 0;
+
+    virtual void Error(TInt /*aErrorCode*/, const TDesC8& /*aErrorDescription*/){};
+
+    /**
+    * Set dispatcher that used by services to send messages.
+    *
+    */
+    virtual void SetDispatcher(MHtiDispatcher* aDispatcher);
+
+public: //from MHtiMemoryObserver
+    /**
+    * Empty implementation.
+    */
+    virtual void NotifyMemoryChange(TInt /*aAvailableMemory*/){};
+
+protected:
+    /**
+    * Pointer to a dispatcher. It is not availble during construction.
+    * If it should be used before starting process messages, InitL()
+    * must be overriden.
+    */
+    MHtiDispatcher* iDispatcher;
+
+private:
+    /**
+    * Instance identifier key
+    */
+    TUid iDtor_ID_Key;
+    };
+
+#include <HtiServicePluginInterface.inl>
+
+#endif