--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/remotestoragefw/remotefileengine/inc/rsfwrfestatemachine.h	Wed Sep 01 12:15:08 2010 +0100
@@ -0,0 +1,109 @@
+/*
+* Copyright (c) 2005-2006 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:  Base class for all operation state machines
+*
+*/
+
+#ifndef C_RSFW_RFESTATEMACHINE_H
+#define C_RSFW_RFESTATEMACHINE_H
+
+#include <e32base.h>
+#include "rsfwremoteaccess.h"
+
+class CRsfwRfeRequest;
+class CRsfwVolumeTable;
+class CRsfwFileEngine;
+class TRfeInArgs;
+class TRfeOutArgs;
+class CRsfwFileEntry;
+class TFid;
+
+const TInt KUpdateNotRequired = 5;
+
+/**
+ *  Base class for all operation state machines
+ *
+ */
+class CRsfwRfeStateMachine : public CBase, public MRsfwRemoteAccessResponseHandler
+    {
+public:
+    
+    class TState
+        {
+    public: 
+        virtual void EnterL()=0;// pure virtual
+        virtual TState* CompleteL();
+        virtual TState* ErrorL(TInt aCode);
+        virtual void Cancel();
+        };
+        
+    class TCompleteAndDestroyState : public CRsfwRfeStateMachine::TState 
+        {
+    public:
+        TCompleteAndDestroyState(CRsfwRfeStateMachine* aOperation,
+                                 TInt aErrCode = 0);
+        void EnterL();  
+        void SetErrorCode(TInt aErrorCode);
+    private:
+        CRsfwRfeStateMachine* iOperation;
+        TInt iErrCode;
+        };
+
+public:
+    void BaseConstructL();
+    ~CRsfwRfeStateMachine();
+    
+    virtual TState* ErrorOnStateEntry(TInt aError);
+    
+    void ChangeState(TState* aNextState);
+    void EnterState(TState* aNextState);
+    void SetNextState(TState* aNextState);
+    void ReEnterCurrentState(); 
+    void SetRequest(CRsfwRfeRequest* aRequest);
+    CRsfwRfeRequest* Request();
+    inline TState* CurrentState(){return iState;};
+    inline TCompleteAndDestroyState* CompleteAndDestroyState()
+        {return iCompleteAndDestroyState;};
+    
+    // completes client's request
+    virtual TState* CompleteRequestL(TInt aError)=0;
+    
+    void SetVolumes(CRsfwVolumeTable* aImplementor);
+    void SetFileEngine(CRsfwFileEngine* aFileEngine);
+    void SetArguments(TRfeInArgs* aInArgs, TRfeOutArgs* aOutArgs);
+    CRsfwVolumeTable* Volumes();
+    CRsfwFileEngine* FileEngine();
+    CRsfwFileEntry* Node();
+    virtual TState* ErrorOnStateExit(TInt aError);
+
+    // from MRsfwRemoteAccessResponseHandler
+    void HandleRemoteAccessResponse(TUint aId, TInt aStatus); 
+    void DoCancel();
+    
+public:
+    TRfeInArgs* iInArgs;
+    TRfeOutArgs* iOutArgs;
+    
+private:
+    CRsfwFileEntry* iFep;   // target file/directory parameter used by almost all state machines:
+    TCompleteAndDestroyState* iCompleteAndDestroyState; // pre-created so that the request can always be completed (OOM situations etc.)
+    TState*  iState; // our current state  
+    CRsfwRfeRequest *iRFeRequest; // back pointer to the request we are running
+    CRsfwVolumeTable* iImplementor; // class that implements the operations
+    CRsfwFileEngine* iFileEngine; // the file engine    
+    };
+  
+
+
+#endif // C_RSFW_RFESTATEMACHINE_H
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