--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smsprotocols/smsstack/smsprot/Inc/smspcdb.h	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,166 @@
+// Copyright (c) 1997-2009 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:
+// Declares the CSmsCommDBEvent class.
+// 
+//
+
+/**
+ @file
+ @internalAll
+*/
+
+#if !defined (SMSPCDB_H__)
+#define SMSPCDB_H__
+
+#include <e32base.h>
+#include <e32property.h>
+#include "smspcomm.h"
+#include "smsstacklog.h"
+#include "smsuact.h"
+
+
+class TSmsSettings;
+
+
+
+/**
+ *  Requests notification of changes in CommDB and in turn notifies an observer,
+ *  the CSmsProtocol object.
+ *  
+ *  Currently this class only waits on changes in the current SMS bearer setting,
+ *  though it should be extendable for changes in other CommDB settings in the future.
+ *  
+ *  The class is a simple active object derived state machine with two states
+ *  defined by CSmsCommDBEvent::TSmsCommDBEventState.
+ *  
+ *  @internalComponent
+ */
+class CSmspCommDbEvent : public CSmsuActiveBase
+	{
+protected:
+	~CSmspCommDbEvent();
+	virtual void ConstructL();
+	virtual void NotifyOnEvent();
+	CSmspCommDbEvent(const TSmsSettings& aSmsSettings, RMobileSmsMessaging& aSmsMessaging, TInt aPriority);
+	void Complete(TInt aError);
+
+protected:
+	// Private members
+	RProperty iProperty; // Property describing the event we require notification of
+	const TSmsSettings& iSmsSettings;
+	RMobileSmsMessaging& iSmsMessaging;
+	};
+
+
+/**
+ *  Queries CommDB for the current sms bearer and attempts to change the
+ *  bearer of the phone.
+ *  
+ *  This class works with the classes CSmsCommDBEvent and CSmsProtocol to change
+ *  the sms bearer when the corresponding setting changes in CommDB.
+ *  
+ *  The class is a simple active object derived state machine with these states
+ *  defined by CSmspSetBearer::TSmsSetBearerState.
+ *  
+ *  @internalComponent
+ */
+class CSmspSetBearer : public CSmspCommDbEvent
+	{
+public:
+	static CSmspSetBearer* NewL(const TSmsSettings& aSmsSettings, RMobileSmsMessaging& aSmsMessaging, TInt aPriority);
+	~CSmspSetBearer();
+	void Start();
+	void NotifyBearerSet(TRequestStatus& aStatus);
+
+protected:
+	virtual void ConstructL();
+
+private:
+	void DoRunL();
+	void DoCancel();
+private:
+	CSmspSetBearer(const TSmsSettings& aSmsSettings,RMobileSmsMessaging& aSmsMessaging, TInt aPriority);
+	void SetSmsBearer();
+	void GetSmsBearerL(RMobileSmsMessaging::TMobileSmsBearer& aBearer);
+	void NotifyOnEvent();
+private:
+	enum TSmsSetBearerState
+		{
+		ESmsSetBearerStateInit, 			//< Intial State
+		ESmsSetBearerNotifyOnEvent, 		//< Wait for notification from property when Bearer changes
+		ESmsSetBearerStateSettingBearer 	//< Setting the bearer on the current GPRS session
+		};
+private:
+	TSmsSetBearerState iState;				//< The current state of the state machine
+	RMobileSmsMessaging::TMobileSmsBearer iBearer;	//< The currently used SMS bearer
+	TBool iBearerSet;						//< Boolean tell is bearer set
+	RMobileSmsMessaging::TMobileSmsBearer iPreviousBearer; //< The previously used SMS bearer
+	};
+
+/**
+ *  @internalComponent
+ */
+const TInt KSmspReceiveModeCommDbRetryLimit = 5;
+const TInt KSmspReceiveModeCommDbRetryDelay = 1000000;
+
+/**
+ *  CSmspReceiveMode reads the CommDB global setting SMS_RECEIVE_MODE, compares this to the TSY's SMS capabilities then sets the Receive Mode on the TSY.
+ *  After setting the Receive Mode, CSmspReceiveMode waits for notification from CommDB for changes in global setting SMS_RECEIVE_MODE.
+ *  When the global setting has changed, CSmspReceiveMode sets the Receive Mode on the TSY again.
+ *  @internalComponent
+ */
+class CSmspReceiveMode : public CSmspCommDbEvent
+	{
+public:
+
+	static CSmspReceiveMode* NewL(const TSmsSettings& aSmsSettings, RMobileSmsMessaging& aSmsMessaging, const RMobileSmsMessaging::TMobileSmsCapsV1& aSmsCaps, TInt aPriority);
+	virtual ~CSmspReceiveMode();
+	void Start(TRequestStatus& aStatus);
+
+protected:
+	virtual void ConstructL();
+
+private:
+
+	CSmspReceiveMode(const TSmsSettings& aSmsSettings, RMobileSmsMessaging& aSmsMessaging, const RMobileSmsMessaging::TMobileSmsCapsV1& aSmsCaps, TInt aPriority);
+	void DoRunL();
+	void DoCancel();
+
+	RMobileSmsMessaging::TMobileSmsReceiveMode SelectReceiveMode(RMobileSmsMessaging::TMobileSmsReceiveMode aPreferredMode) const;
+	RMobileSmsMessaging::TMobileSmsReceiveMode SelectReceiveMode() const;
+
+	void GetCommDbReceiveModeL(RMobileSmsMessaging::TMobileSmsReceiveMode& aReceiveMode);
+	void NotifyOnEvent();
+	void SetReceiveMode(RMobileSmsMessaging::TMobileSmsReceiveMode aReceiveMode);
+
+private:
+
+	enum TSmspReceiveMode
+		{
+		ESmspReceiveModeInit,					//< Initial state
+		ESmspReceiveModeRetryCommDb,			//< Transitory state while waiting for CommDb access
+		ESmspReceiveModeNotifyOnEvent,			//< Wait for notification from property when Bearer changes
+		ESmspReceiveModeSet 					//< Setting the Receive Mode on the TSY
+		} iState;
+
+	// When notified that the CommDB has been changed we must re-read SMS_RECEIVE_MODE. Possibly this can transitorily
+	// fail due to power-up race condition, etc. Hence this suppoer for retrying briefly
+	TInt	iCommDbRetryCount;					//< Count of retry attempts before giving up
+	RTimer	iCommDbRetryTimer;
+	RMobileSmsMessaging::TMobileSmsReceiveMode	iSmsReceiveModeLastSet;	//< Used in the event that CommDb can't be read (rather than simply applying default)
+
+	const RMobileSmsMessaging::TMobileSmsCapsV1& iSmsCaps;		//< TSY SMS Capabilities
+	};
+
+#endif // !defined SMSPCDB_H__