diff -r 453dfc402455 -r 0aa8cc770c8a localconnectivityservice/dun/atext/src/DunAtCmdEchoer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/atext/src/DunAtCmdEchoer.cpp	Tue Aug 31 16:03:15 2010 +0300
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2010 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:  Echoer for AT commands
+*
+*/
+
+#include "DunAtCmdEchoer.h"
+#include "DunDownstream.h"
+#include "DunDebug.h"
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CDunAtCmdEchoer* CDunAtCmdEchoer::NewL(
+    MDunStreamManipulator* aStreamCallback )
+    {
+    CDunAtCmdEchoer* self = new (ELeave) CDunAtCmdEchoer( aStreamCallback );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CDunAtCmdEchoer::~CDunAtCmdEchoer()
+    {
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::~CDunAtCmdEchoer()") ));
+    ResetData();
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::~CDunAtCmdEchoer() complete") ));
+    }
+
+// ---------------------------------------------------------------------------
+// Resets data to initial values
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdEchoer::ResetData()
+    {
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::ResetData()") ));
+    // Internal
+    Initialize();
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::ResetData() complete") ));
+    }
+
+// ---------------------------------------------------------------------------
+// Sends a character to be echoed
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdEchoer::SendEchoCharacter(
+    const TDesC8* aInput,
+    MDunAtCmdEchoer* aCallback )
+    {
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::SendEchoCharacter()") ));
+    if ( iAtEchoState!=EDunStateIdle || iCallback )
+        {
+        FTRACE(FPrint( _L("CDunAtCmdEchoer::SendEchoCharacter() (not ready) complete") ));
+        return KErrNotReady;
+        }
+    iStreamCallback->NotifyDataPushRequest( aInput, this );
+    iCallback = aCallback;
+    iAtEchoState = EDunStateAtCmdEchoing;
+    FTRACE(FPrint( _L("CDunDownstream::SendEchoCharacter() complete" ) ));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// CDunAtCmdEchoer::CDunAtCmdEchoer
+// ---------------------------------------------------------------------------
+//
+CDunAtCmdEchoer::CDunAtCmdEchoer( MDunStreamManipulator* aStreamCallback ) :
+    iStreamCallback( aStreamCallback )
+    {
+    Initialize();
+    }
+
+// ---------------------------------------------------------------------------
+// CDunAtCmdEchoer::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdEchoer::ConstructL()
+    {
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::ConstructL()") ));
+    if ( !iStreamCallback )
+        {
+        FTRACE(FPrint( _L("CDunAtCmdEchoer::ConstructL() complete") ));
+        User::Leave( KErrGeneral );
+        }
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::ConstructL() complete") ));
+    }
+
+// ---------------------------------------------------------------------------
+// Initializes this class
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdEchoer::Initialize()
+    {
+    // Don't initialize iStreamCallback here (it is set through NewL)
+    iCallback = NULL;
+    iAtEchoState = EDunStateIdle;
+    }
+
+// ---------------------------------------------------------------------------
+// From MDunCompletionReporter.
+// Gets called when data push is complete
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdEchoer::NotifyDataPushComplete( TBool /*aAllPushed*/ )
+    {
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::NotifyDataPushComplete()") ));
+    MDunAtCmdEchoer* callback = iCallback;
+    iCallback = NULL;
+    iAtEchoState = EDunStateIdle;
+    callback->NotifyEchoComplete();
+    FTRACE(FPrint( _L("CDunAtCmdEchoer::NotifyDataPushComplete() complete") ));
+    }