diff -r 7fdc9a71d314 -r 8ad140f3dd41 hti/HtiServicePlugins/HtiEchoServicePlugin/src/HtiEchoServicePlugin.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/HtiServicePlugins/HtiEchoServicePlugin/src/HtiEchoServicePlugin.cpp	Wed Oct 13 16:17:58 2010 +0300
@@ -0,0 +1,127 @@
+/*
+* 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:  HtiEchoServicePlugin implementation
+*
+*/
+
+
+// INCLUDE FILES
+#include "HtiEchoServicePlugin.h"
+#include <HtiDispatcherInterface.h>
+#include <HtiLogging.h>
+
+// CONSTANTS
+const static TUid KEchoServiceUid = { 0x1020DEBF };
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// Create instance of concrete ECOM interface implementation
+CHtiEchoServicePlugin* CHtiEchoServicePlugin::NewL()
+    {
+    CHtiEchoServicePlugin* self = new (ELeave) CHtiEchoServicePlugin;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+    }
+
+// Constructor
+CHtiEchoServicePlugin::CHtiEchoServicePlugin():
+    iReply( NULL )
+    {
+    }
+
+CHtiEchoServicePlugin::~CHtiEchoServicePlugin()
+    {
+    HTI_LOG_TEXT( "CHtiEchoServicePlugin destroy" );
+    delete iReply;
+    }
+
+// Second phase construction.
+void CHtiEchoServicePlugin::ConstructL()
+    {
+    HTI_LOG_TEXT( "CHtiEchoServicePlugin::ConstructL" );
+    }
+
+void CHtiEchoServicePlugin::ProcessMessageL( const TDesC8& aMessage,
+                                 THtiMessagePriority /*aPriority*/ )
+    {
+    HTI_LOG_FUNC_IN( "CHtiEchoServicePlugin::ProcessMessage" );
+    HTI_LOG_FORMAT( "Msg len: %d", aMessage.Length() );
+
+    if ( iReply )
+        {
+        HTI_LOG_TEXT( "sending previous echo, reject request" );
+        return;
+        }
+
+    //make copy of the message and send it back
+    iReply = HBufC8::NewL( aMessage.Length() );
+    iReply->Des().Copy( aMessage );
+
+    if ( iDispatcher->DispatchOutgoingMessage( iReply, KEchoServiceUid )
+            == KErrNoMemory )
+        {
+        HTI_LOG_TEXT( "KErrNoMemory" );
+        iDispatcher->AddMemoryObserver( this );
+        }
+    else
+        {
+        iReply = NULL;
+        }
+    HTI_LOG_FUNC_OUT( "CHtiEchoServicePlugin::ProcessMessage" );
+    }
+
+void CHtiEchoServicePlugin::NotifyMemoryChange( TInt aAvailableMemory )
+    {
+
+    if ( iReply )
+        {
+        if ( aAvailableMemory >= iReply->Size() )
+            {
+            TInt err = iDispatcher->DispatchOutgoingMessage( iReply,
+                            KEchoServiceUid );
+
+            if (  err == KErrNone )
+                {
+                iReply = NULL;
+                iDispatcher->RemoveMemoryObserver( this );
+                }
+            else if ( err != KErrNoMemory ) //some other error
+                {
+                delete iReply;
+                iReply = NULL;
+                iDispatcher->RemoveMemoryObserver( this );
+                }
+            }
+        }
+    else
+        {
+        //some error, should not be called
+        iDispatcher->RemoveMemoryObserver( this );
+        }
+    }
+
+
+// End of File