diff -r 453dfc402455 -r 0aa8cc770c8a mtpdataproviders/mtppictbridgedp/pictbridgeengine/src/dpsstatemachine.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpdataproviders/mtppictbridgedp/pictbridgeengine/src/dpsstatemachine.cpp	Tue Aug 31 16:03:15 2010 +0300
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2006, 2007 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:  This class implements the dps state machine. 
+*
+*/
+
+
+#include <e32debug.h>
+#include "dpsstatemachine.h"
+#include "dpsscriptreceiver.h"
+#include "dpsscriptsender.h"
+#include "dpstransaction.h"
+#include "dpsconst.h"
+#include "pictbridge.h"
+#include "dpsparam.h"
+#include "dpsoperation.h"
+
+#ifdef _DEBUG
+#	define IF_DEBUG(t) {RDebug::t;}
+#else
+#	define IF_DEBUG(t)
+#endif
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CDpsStateMachine* CDpsStateMachine::NewL(CDpsEngine* aEngine)
+    {
+    IF_DEBUG(Print(_L("CDpsStateMachine::NewL")));
+    CDpsStateMachine* self = new(ELeave) CDpsStateMachine(aEngine);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;	
+    }
+	
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CDpsStateMachine::~CDpsStateMachine()
+    {
+    IF_DEBUG(Print(_L(">>>~CDpsStateMachine")));
+    delete iTrader;
+    iTrader = NULL;
+    delete iScriptReceiver;
+    iScriptReceiver = NULL;
+    delete iScriptSender;
+    iScriptSender = NULL;
+    
+    delete iIdleState; iIdleState = NULL;
+    delete iSendingReqState; iSendingReqState = NULL;
+    delete iWaitingRepState; iWaitingRepState = NULL;
+    delete iSendingRepState; iSendingRepState = NULL;	
+    IF_DEBUG(Print(_L("<<<~CDpsStateMachine")));	
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//	
+CDpsStateMachine::CDpsStateMachine(CDpsEngine* aEngine) : 
+    iEngine(aEngine),iOperation(EDpsOpEmpty), iEvent(EDpsEvtEmpty), 
+    iCurError(KErrNone)
+    {
+    IF_DEBUG(Print(_L(">>>CDpsStateMachine::Ctor")));
+    
+    IF_DEBUG(Print(_L("<<<CDpsStateMachine::Ctor")));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CDpsStateMachine::ConstructL()
+    {
+    IF_DEBUG(Print(_L(">>>CDpsStateMachine::ConstructL")));	
+    iIdleState = new(ELeave) TDpsIdleState(this);
+    iSendingReqState = new(ELeave) TDpsSendingReqState(this);
+    iWaitingRepState = new(ELeave) TDpsWaitingRepState(this);
+    iSendingRepState = new(ELeave) TDpsSendingRepState(this);
+    iCurState = iIdleState;
+    iTrader = CDpsTransaction::NewL(this);
+    iScriptReceiver = CDpsScriptReceiver::NewL(this);
+    iScriptSender = CDpsScriptSender::NewL(this);	
+    IF_DEBUG(Print(_L("<<<CDpsOperator::ConstructL")));	
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CDpsStateMachine::StartTransactionL(TMDpsOperation* aRequest)
+    {
+    IF_DEBUG(Print(_L(">>>CDpsStateMachine::StartTransaction")));
+    iMOperation = aRequest;
+    iOperation = (TDpsOperation)iMOperation->iOperation;    
+    iTrader->CreateRequestL(aRequest);
+    iCurState = iSendingReqState;
+    IF_DEBUG(Print(_L("<<<CDpsStateMachine::StartTransaction")));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CDpsStateMachine::Initialize()
+    {
+    IF_DEBUG(Print(_L(">>>CDpsStateMachine::Initialize")));
+    iOperation = EDpsOpEmpty;
+    iEvent = EDpsEvtEmpty;
+    iCurError = KErrNone;
+    if (CurState() != IdleState())
+        {
+        SetState(IdleState());
+        }
+    IF_DEBUG(Print(_L("<<<CDpsStateMachine::Initialize")));    
+    }