--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/TransactionUser/src/InviteUASStates.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,224 @@
+/*
+* Copyright (c) 2007-2009 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:
+* Name          : InviteUASStates.h
+* Part of       : TransactionUser
+* Version       : SIP/6.0
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+
+
+#ifndef INVITEUASSTATES_H
+#define INVITEUASSTATES_H
+
+// INCLUDES
+#include "UserAgentState.h"
+
+// FORWARD DECLARATIONS
+
+// CLASS DECLARATION
+
+// Waiting for INVITE from CTransaction.
+class CInviteUAS_Start : public CUserAgentState
+	{
+public: // Constructors and destructor
+
+	CInviteUAS_Start();
+
+	~CInviteUAS_Start();
+
+public: // From CUserAgentState
+
+	void TransactionEndsL(CUserAgent& aUserAgent, TInt aReason) const;
+	
+	void ReceiveL(CUserAgent& aUserAgent, CSIPRequest* aRequest) const;
+
+	// TransactionOwner shouldn't send response yet since UA hasn't passed the
+	// request to it yet, but in theory it is possible if TransactionOwner
+	// happens to use this UAS's TransactionId.
+	void SendResponseL(CUserAgent& aUserAgent,
+					   CSIPResponse* aResp,
+					   const TSIPTransportParams& aParams) const;
+
+	TBool CancelL(CUserAgent& aUserAgent) const;
+
+public: // New functions
+
+	void SetNeighbourStates(CUserAgentState& aGetTxOwner,
+							CUserAgentState& aWaitRespFromApp,
+							CUserAgentState& aRejected);
+private: // Data
+
+	// Next possible states	
+	CUserAgentState* iGetTxOwner;
+	CUserAgentState* iWaitRespFromApp;
+	
+	// If UAS or Dialogs subsystem sends a response, it is an error response
+	// (not a 2xx).
+	CUserAgentState* iRejected;
+	};
+
+
+
+// Waiting to obtain the MTransactionOwner callback to upper layer.
+// The transaction can't be canceled yet, because TransactionId hasn't been
+// passed to MTransactionOwner yet.
+class CInviteUAS_GetTxOwner : public CUserAgentState
+	{
+public:	// Constructors and destructor
+
+	CInviteUAS_GetTxOwner();
+
+	~CInviteUAS_GetTxOwner();
+
+public: // From CUserAgentState
+
+	void OwnerFoundL(CUserAgent& aUserAgent, MTransactionOwner* aOwner) const;
+
+	void OwnerNotFoundL(CUserAgent& aUserAgent, CSIPResponse* aResp) const;
+	
+	// TransactionOwner shouldn't send response yet as UA hasn't passed the
+	// request to it yet, but in theory it is possible if TransactionOwner
+	// happens to use this UAS's TransactionId.
+	void SendResponseL(CUserAgent& aUserAgent,
+					   CSIPResponse* aResp,
+					   const TSIPTransportParams& aParams) const;
+
+    void TransactionEndsL(CUserAgent& aUserAgent, TInt aReason) const;
+
+    void TimerExpiredL(CUserAgent& aUserAgent,
+					   TTimerId aTimerId,
+					   TAny* aTimerParam) const;
+
+    void RequestRouterErrorL(CUserAgent& aUserAgent) const;
+
+	TBool CancelL(CUserAgent& aUserAgent) const;
+
+public: // New functions
+
+	void SetNeighbourStates(CUserAgentState& aWaitRespFromApp,
+							CUserAgentState& aRejected);
+
+private: // Data
+
+	// Next possible states
+	CUserAgentState* iWaitRespFromApp;
+	CUserAgentState* iRejected;
+	};
+
+
+
+// Waiting SIP response from application
+class CInviteUAS_WaitRespFromApp : public CUserAgentState
+	{
+public:	// Constructors and destructor
+
+	CInviteUAS_WaitRespFromApp();
+
+	~CInviteUAS_WaitRespFromApp();
+
+public: // From CUserAgentState
+
+	void SendResponseL(CUserAgent& aUserAgent,
+					   CSIPResponse* aResp,
+					   const TSIPTransportParams& aParams) const;
+
+	void TransactionEndsL(CUserAgent& aUserAgent, TInt aReason) const;
+
+	TBool ShouldUASStop() const;
+
+	TBool CancelL(CUserAgent& aUserAgent) const;
+
+public: // New functions
+
+	void SetNeighbourStates(CUserAgentState& aAccepted,
+							CUserAgentState& aRejected);
+
+private: // Data
+
+	// Next possible states
+	CUserAgentState* iAccepted;
+	CUserAgentState* iRejected;
+	};
+
+
+
+// Waiting for ACK from the remote endpoint
+class CInviteUAS_Accepted : public CUserAgentState
+	{
+public:	// Constructors and destructor
+
+	CInviteUAS_Accepted();
+
+	~CInviteUAS_Accepted();
+
+public: // From CUserAgentState
+
+	void SendResponseL(CUserAgent& aUserAgent,
+					   CSIPResponse* aResp,
+					   const TSIPTransportParams& aParams) const;
+
+	void TransactionEndsL(CUserAgent& aUserAgent, TInt aReason) const;
+
+	void ReceiveL(CUserAgent& aUserAgent, CSIPRequest* aRequest) const;
+
+	void SendCompleteL(CUserAgent& aUserAgent) const;
+
+	void SendFailedL(CUserAgent& aUserAgent, TInt aErrcode) const;	
+
+	void TimerExpiredL(CUserAgent& aUserAgent,
+					   TTimerId aTimerId,
+					   TAny* aTimerParam) const;
+
+    // Retransmission of a 2xx may cause ICMP error, but currently it isn't
+    // handled.
+
+	TBool CancelL(CUserAgent& aUserAgent) const;
+	};
+
+
+
+// Waiting for Transaction to end
+class CInviteUAS_Rejected : public CUserAgentState
+	{
+public:	// Constructors and destructor
+
+	CInviteUAS_Rejected();
+
+	~CInviteUAS_Rejected();
+
+public: // From CUserAgentState
+
+	void TransactionEndsL(CUserAgent& aUserAgent, TInt aReason) const;
+	
+	// ICMP error is handled by transaction (not by UAS) as transaction sends
+	// the error responses.
+
+	// TransactionOwner shouldn't send response any more as the final response
+	// has already been sent.
+	void SendResponseL(CUserAgent& aUserAgent,
+					   CSIPResponse* aResp,
+					   const TSIPTransportParams& aParams) const;	
+	};
+
+#endif // end of INVITEUASSTATES_H
+
+// End of File