--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingfw/msgsrvnstore/server/src/diskchange.cpp	Wed Nov 03 22:41:46 2010 +0530
@@ -0,0 +1,104 @@
+// Copyright (c) 1999-2009 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:
+//
+
+#include "diskchange.h"
+#include "MSVPANIC.H"
+
+CMsvNotifyDiskChange::CMsvNotifyDiskChange(RFs& aFs, MMsvDiskChangeObserver& aObserver)
+: CMsgActive(EPriorityHigh), iFs(aFs), iObserver(aObserver)
+	{
+	CActiveScheduler::Add(this);
+	}
+
+CMsvNotifyDiskChange::~CMsvNotifyDiskChange()
+	{
+	Cancel();
+	}
+
+TInt CMsvNotifyDiskChange::Start(const TDriveUnit& aDrive, TUint aUniqueId)
+//
+// aDrive - The drive for which we want notifications
+// aUniqueId - The id we expect the drive to have
+//
+	{
+	__ASSERT_DEBUG(!IsActive(), PanicServer(EMsvDiskChangeNotiferActive));
+
+	iUniqueId = aUniqueId;
+
+	// Check if the drive is removable
+	TDriveInfo drive;
+	TInt error = iFs.Drive(drive, TInt(aDrive));
+	if (error != KErrNone)
+		return error;
+
+	iDrive = TInt(aDrive);
+
+	// Setup file system notification
+	iFs.NotifyChange(ENotifyDisk, iStatus);
+	SetActive();
+
+	// See if the disk is currently available
+	TVolumeInfo volume;
+	iDiskRemoved = iFs.Volume(volume, TInt(iDrive)) != KErrNone || iDiskMissing;
+
+	return KErrNone;
+	}
+
+void CMsvNotifyDiskChange::DoCancel()
+	{
+	iFs.NotifyChangeCancel();
+	}
+
+void CMsvNotifyDiskChange::DoRunL()
+	{
+	// Flag to indicate we should continue to notify of disk changes
+	TBool keepGoing = ETrue;
+
+	// Get disk details - If this fails assume it's missing
+	TVolumeInfo volume;
+	if (iFs.Volume(volume, TInt(iDrive)) != KErrNone || iDiskMissing)
+		{
+		if (!iDiskRemoved)
+			{
+			// The disk has been removed
+			keepGoing = iObserver.DiskRemoved(iDrive);
+			}
+
+		iDiskRemoved = ETrue;
+		}
+	else if (iDiskRemoved)
+		{
+		if (iWrongId)
+			{
+			// The incorrect disk is being used
+			keepGoing = iObserver.DiskChanged(iDrive, volume.iUniqueID);
+			}
+		else
+			{
+			// The correct disk has been inserted
+			keepGoing = iObserver.DiskInserted(iDrive);
+			}
+
+		iDiskRemoved = EFalse;
+		}
+	
+	// Setup file system notification
+	if (keepGoing)
+		{
+		iFs.NotifyChange(ENotifyDisk, iStatus);
+		SetActive();
+		}
+	}
+