diff -r 7fdc9a71d314 -r 8ad140f3dd41 hti/hti_plat/hti_api/inc/HtiDispatcherInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/hti_plat/hti_api/inc/HtiDispatcherInterface.h	Wed Oct 13 16:17:58 2010 +0300
@@ -0,0 +1,138 @@
+/*
+* 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:  Definition of MDispatcher interface that used
+*        to dispatch incoming messages to servers
+*        and outcoming to host client.
+*        MDispatcher* should be used by services to send outcoming
+*        messages
+*
+*/
+
+
+#ifndef DISPATCHERINTERFACE_H__
+#define DISPATCHERINTERFACE_H__
+
+#include <e32std.h>
+
+class CHtiMessage;
+class CConsoleBase;
+
+enum THtiMessagePriority
+    {
+    EHtiPriorityDefault = 0,
+    EHtiPriorityData = 0,
+    EHtiPriorityControl = 2
+    };
+
+const TInt KErrorDescriptionMaxLength = 118;
+
+/**
+* Observer interface that should be implemented by plugin if it wants
+* to resend message failed due to KErrNoMemory.
+**/
+class MHtiMemoryObserver
+    {
+public:
+    /**
+    *
+    * This function called by the dispatcher after plug-in request
+    * (@see MHtiDispatcher::AddMemoryObserver()) every time
+    * when some message was removed from the outgoing queue.
+    *
+    * @param aAvailableMemory amount of memory currently available for
+    *           outgoing messages
+    **/
+    virtual void NotifyMemoryChange(TInt aAvailableMemory) = 0;
+    };
+
+/**
+* Interface to the HTI dispatcher used by service plug-ins for message
+* sending.
+**/
+class MHtiDispatcher
+    {
+public:
+
+    /**
+    *
+    * Send message from the service back to host client.
+    * Transfer ownership of aMessage.
+    * The function adds messages to the outgoing queue.
+    * Message will be actualy sent later.
+    * Function can return KErrNoMemory if there is not enough memory to
+    * add it to the queue.
+    * Plug-in use AddMemoryObserver to be notified later when memory
+    * will be available to continue data transfer.
+    *
+    * @param aMessage contain server-specific data
+    * @param aTargetServiceUid service UID
+    * @param aWrappedFlag shoud set to ETrue if message should be
+    *       wrapped by security manager
+    * @param aPriority message priority
+    *
+    * @return KErrNone if message was succesfully added to the outgoing queue
+    *         KErrNoMemory when there is not enough memory.
+    */
+    virtual TInt DispatchOutgoingMessage( TDesC8* aMessage,
+                    const TUid aTargetServiceUid,
+                    TBool aWrappedFlag,
+                    THtiMessagePriority aPriority ) = 0;
+
+    virtual TInt DispatchOutgoingMessage(TDesC8* aMessage,
+                    const TUid aTargetServiceUid) = 0;
+
+    virtual TInt DispatchOutgoingErrorMessage(TInt aErrorCode,
+                    const TDesC8& aErrorDescription,
+                    const TUid aTargetServiceUid) = 0;
+    /**
+    * Adds memory observer.
+    *
+    * @param anObserver memory observer
+    */
+    virtual void AddMemoryObserver(MHtiMemoryObserver* anObserver) = 0;
+
+    /**
+    * Removes memory observer.
+    *
+    * @param anObserver memory observer
+    */
+    virtual void RemoveMemoryObserver(MHtiMemoryObserver* anObserver) = 0;
+
+    /**
+    * Returns tha amount of currenly available memory for messages.
+    */
+    virtual TInt GetFreeMemory() = 0;
+
+    /**
+    * Notifis dispatcher that some async request is over.
+    * Should be used when plug-in uses async services
+    * and enters in a busy state (IsBusy() returns true)
+    * Should be called when plug-in is able to process new messages again
+    */
+    virtual void Notify( TInt anError ) = 0;
+
+    /*
+    * Getter for the HTI console
+    */
+    virtual CConsoleBase* GetConsole() = 0;
+
+    /*
+    * Shutdown HTI and reboot the device.
+    *
+    * Called from service plug-ins or from EHtiReboot HtiSystem command
+    */
+    virtual void ShutdownAndRebootDeviceL() = 0;
+    };
+
+#endif