--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smsprotocols/smsstack/smsprot/Inc/smspmondsk.h	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,104 @@
+// 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:
+// Header for a CActive based class that monitors for low disk space and
+// is informed when a PDU is being received. Should memory be too low,
+// an error code is returned causing a NAck. The class will then monitor
+// for the point at which PDUs can be received again, and a Resume Reception
+// will be sent to the network.
+// The are two limits - a high limit for general SMSs and a low limit for
+// class 0 SMSs. However there is only one way to resume reception of SMSs. So
+// once a resume reception is sent, it resumes hoth types of SMSs. The algorithm
+// is a bit simiplier because of this:
+// IF sending non-Class 0 AND we are below the high limit THEN
+// N'Ack SMS
+// IF not waiting for free diskspace THEN
+// Wait for free diskspace to rise above the high limit
+// Resume SMS Reception.
+// ELSE
+// Continue waiting for either high limit or low limit
+// Resume SMS Reception as previously intended
+// END_IF
+// ELSE IF sending Class 0 AND we are below the low limit THEN
+// Wait for free diskspace to rise above the low limit
+// Resume SMS Reception.
+// END_IF
+// Note that in the second and last case, SMS reception may be resumed before
+// we are above the high limit, but in that case montioring will repeat when
+// the next non-class 0 SMS is attempted to be delivered. This is necessary as
+// there is no way to resume just class 0 SMSs.
+// 
+//
+
+/**
+ @file
+ @internalComponent 
+*/
+
+
+#ifndef __SMSPMONDSK_H__
+#define __SMSPMONDSK_H__
+
+#include <etelmm.h>
+#include <f32file.h>
+
+
+/**
+ *  The class is a simple active object derived state machine that monitors
+ *  disk space needed for storage of incoming messages.
+ */
+class CSmsMonitorDiskSpace : public CActive
+	{
+public:
+	static CSmsMonitorDiskSpace* NewL(MSmsComm& aSmsComm, RMobileSmsMessaging& aSmsMessaging, RFs& aFs);
+	~CSmsMonitorDiskSpace();
+
+	void CheckDiskSpaceForPDUL(TBool aPDUIsClass0);
+
+protected:
+	void RunL();
+	void DoCancel();
+
+private:
+	enum TSmsMonitorDiskSpaceState
+		{
+		ESmsMonitorDiskSpaceIdle,
+		ESmsMonitorDiskSpaceMonitorLowLimit,
+		ESmsMonitorDiskSpaceMonitorHighLimit,
+		ESmsMonitorDiskSpaceResumeReception
+		};
+
+	CSmsMonitorDiskSpace(MSmsComm& aSmsComm, RMobileSmsMessaging& aSmsMessaging, RFs& aFs);
+	void ConstructL();
+
+	void NotifyDiskSpace(TInt aLimit, TSmsMonitorDiskSpaceState aState);
+	void ResumeSmsReception();
+	TInt GetFreeDiskSpace();	
+
+	TSmsMonitorDiskSpaceState  iState;
+	RMobileSmsMessaging&  iSmsMessaging;
+	RFs&  iFs;
+    MSmsComm&  iSmsComm;
+	TUint  iLowLimit;
+	TUint  iHighLimit;
+	TBool  iNAckdClassZero;
+	TBool  iNAckdClassOther;
+	
+#ifdef _DEBUG	
+	TBool     iInOODTesting ;
+	RProperty iFreeDiskSpaceProperty;
+#endif
+	
+	};
+
+#endif // !defined __SMSPMONDSK_H__