--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devencdiskutils/DevEncCommonUtils/src/DevEncDiskStatusObserver.cpp	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,131 @@
+/*
+* Copyright (c) 2005 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: 
+*              Implements a watcher for disk status change events.   
+*
+*
+*/
+
+
+#include <e32base.h>
+#include <f32file.h>
+#include <DevEncEngineConstants.h>
+#include "DevEncDiskStatusObserver.h"
+#include "DevEncLog.h"
+#include "DevEncProtectedPSKey.h"
+
+
+EXPORT_C CDiskStatusObserver* CDiskStatusObserver::NewL( MDiskStatusObserver* aObserver, TDriveNumber aDriveNumber )
+    {
+    DFLOG( "CDiskStatusObserver::NewL" );
+    CDiskStatusObserver* self = new (ELeave) CDiskStatusObserver();
+    CleanupStack::PushL( self );
+    self->ConstructL( aObserver, aDriveNumber );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+void CDiskStatusObserver::ConstructL( MDiskStatusObserver* aObserver, TDriveNumber aDriveNumber )
+    {
+    DFLOG( "CDiskStatusObserver::ConstructL" );
+    TInt err = iNfeStatus.Attach( KEncUtility, ENC_KEY( aDriveNumber, KDEStatusToUiKey ) );
+    if ( err )
+        {
+        DFLOG2( "ERROR: Attach failed, err %d", err );
+        }
+    iObserver = aObserver;
+    iDrive = aDriveNumber;
+    CActiveScheduler::Add( this );
+    iNfeStatus.Subscribe( iStatus );
+    SetActive();
+    }
+
+CDiskStatusObserver::CDiskStatusObserver() : CActive( EPriorityIdle )
+    {
+    }
+
+CDiskStatusObserver::~CDiskStatusObserver()
+    {
+    DFLOG( "CDiskStatusObserver::~CDiskStatusObserver" );
+    Cancel();
+    iNfeStatus.Close();
+    }
+
+void CDiskStatusObserver::DoCancel()
+    {
+    DFLOG( "CDiskStatusObserver::DoCancel" );
+    iNfeStatus.Cancel();
+    }
+
+void CDiskStatusObserver::RunL()
+    {
+    DFLOG( "CDiskStatusObserver::RunL" );
+    iNfeStatus.Subscribe( iStatus );
+    SetActive();
+    
+    TInt nfeStatus;
+    TInt err = iNfeStatus.Get( nfeStatus );
+    if( !err )
+        {
+        TInt status;
+        switch( nfeStatus )
+        	{
+        	case EDecrypting: status = EOpDecrypting;
+        		              break;
+        	case EEncrypting: status = EOpEncrypting;
+        		              break;
+        	default: status = EOpIdle;
+        		     break;
+            }
+        //if a multidrive encryption/decryption is ongoing we cannot change the status of the ps key until
+        //all the drives have concluded the operation. 
+        if( ( status == EOpIdle && !IsEncryptionOperationOngoing() ) || status != EOpIdle )
+            {
+            RProperty::Set( KDevEncProtectedUid, KDevEncOperationKey, status );
+            }
+        iObserver->DiskStatusChangedL( nfeStatus );
+        }
+    }
+
+TBool CDiskStatusObserver::IsEncryptionOperationOngoing()
+    {
+    DFLOG( "CDiskStatusObserver::IsEncryptionOperationOngoing" );
+    TBool ret( EFalse );
+    TBool cont( ETrue );
+    for( TInt i = EDriveA; ( i < KMaxDrives ) && cont; i++ )
+        {
+        TInt status;
+        TInt err = RProperty::Get( KEncUtility, ENC_KEY( (TDriveNumber) i, KDEStatusToUiKey ), status );
+        if( !err )
+            {
+            if( status == EDecrypting || status == EEncrypting )
+                {
+                DFLOG2( "drive %d has an encryption or decryption operation ongoing", i );
+            	ret = ETrue;
+            	cont = EFalse;
+                }
+            else
+                {
+                DFLOG2( "drive %d is in Idle", i );
+                }
+            }
+        else
+        	{
+        	DFLOG3( "ERROR: Get failed for drive %d, err %d", i, err );
+            }
+        }    
+    return ret;
+    }
+
+// End of File