--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/internetradio2.0/uisrc/irdiskspacesession.cpp	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2006 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:  Contains logic for watching certain disk's space
+*
+*/
+
+
+#include "irdebug.h"
+#include "irdiskspacesession.h"
+#include "irdiskspacewatcherobserver.h"
+
+// ---------------------------------------------------------------------------
+// C++ Constructor
+// ---------------------------------------------------------------------------
+//
+CIRDiskSpaceSession::CIRDiskSpaceSession( 
+        MIRDiskSpaceWatcherObserver& aDiskSpaceWatcherObserver, 
+        const TDriveNumber& aDriveNumber, 
+        const TInt64& aCriticalLevel,
+        RFs& aFs ) : 
+            CActive( CActive::EPriorityStandard ),       
+            iObserver( aDiskSpaceWatcherObserver ),
+            iDriveNumber( aDriveNumber ),
+            iCriticalLevel ( aCriticalLevel ),
+            iFs ( aFs )
+    {
+    }
+            
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CIRDiskSpaceSession* CIRDiskSpaceSession::NewL( 
+        MIRDiskSpaceWatcherObserver& aDiskSpaceWatcherObserver, 
+        const TDriveNumber& aDriveNumber, 
+        const TInt64& aCriticalLevel,
+        RFs& aFs )
+    {
+    
+    CIRDiskSpaceSession* self = new( ELeave ) CIRDiskSpaceSession( 
+            aDiskSpaceWatcherObserver,
+            aDriveNumber, 
+            aCriticalLevel,
+            aFs );
+   
+	CleanupStack::PushL( self );
+	
+	self->ConstructL();
+        
+	CleanupStack::Pop( self );
+    return self;
+    
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//            
+CIRDiskSpaceSession::~CIRDiskSpaceSession()
+    {        
+    Cancel();
+    }
+            
+            
+// ---------------------------------------------------------------------------
+// Second stage constructor
+// ---------------------------------------------------------------------------
+//
+void CIRDiskSpaceSession::ConstructL()
+    {
+    CActiveScheduler::Add( this );
+    RunL();
+    }
+    
+            
+// ---------------------------------------------------------------------------
+// DriveNumber
+// ---------------------------------------------------------------------------
+//
+TDriveNumber CIRDiskSpaceSession::DriveNumber() 
+    {
+    return iDriveNumber;
+    }
+
+    
+// ---------------------------------------------------------------------------
+// SetObserverCount
+// ---------------------------------------------------------------------------
+//
+void CIRDiskSpaceSession::SetObserverCount( TInt aObserverCount ) 
+    {
+    iObserverCount = aObserverCount;
+    }
+
+
+// ---------------------------------------------------------------------------
+// ObserverCount
+// ---------------------------------------------------------------------------
+//
+TInt CIRDiskSpaceSession::ObserverCount() 
+    {
+    return iObserverCount;
+    }
+
+            
+// ---------------------------------------------------------------------------
+// From class CActive. 
+// Cancels the pending request.
+// ---------------------------------------------------------------------------
+//
+void CIRDiskSpaceSession::DoCancel() 
+    {    
+    iFs.NotifyDiskSpaceCancel( iStatus );
+    }
+
+
+// ---------------------------------------------------------------------------
+// From class CActive. 
+// Invoked when the observed disk's free disk space has run below
+// the supplied critical level.
+// Notifies the observer and regenerates the request to RFs' NotifyDiskSpace.
+// ---------------------------------------------------------------------------
+//
+void CIRDiskSpaceSession::RunL()
+    { 
+	IRRDEBUG2("CIRDiskSpaceSession::RunL - iDriveNumber=%d", iDriveNumber);
+    IRRDEBUG2("CIRDiskSpaceSession::RunL - iCriticalLevel=%d", iCriticalLevel);
+    iFs.NotifyDiskSpace( iCriticalLevel, iDriveNumber, iStatus );
+    SetActive();
+        
+    if ( IsBelowCriticalLevel( iDriveNumber ) )
+        {
+        IRRDEBUG2("CIRDiskSpaceSession::RunL - LOW MEMORY detected", KNullDesC);
+        TRAP_IGNORE( iObserver.NotifyLowDiskSpaceL() )
+        }
+    }
+    
+
+// ---------------------------------------------------------------------------
+// Returns ETrue if below the critical level in defined disk, otherwise EFalse
+// ---------------------------------------------------------------------------
+//
+TBool CIRDiskSpaceSession::IsBelowCriticalLevel(
+        const TDriveNumber& aDriveNumber ) const    
+    {
+    TBool ret = EFalse;
+
+    TVolumeInfo volInfo;
+    if ( iFs.Volume( volInfo, aDriveNumber ) == KErrNone )
+        {
+        if ( volInfo.iFree < iCriticalLevel )
+            {
+            IRRDEBUG3( "CIRDiskSpaceSession::IsBelowCriticalLevel - Low Memory. Disk space [%d] is under the critical [%d] level!", 
+                static_cast<TInt>( volInfo.iFree ), 
+                static_cast<TInt>( iCriticalLevel ) ); 
+            ret = ETrue;
+            }
+        else
+	        {
+            IRRDEBUG3( "CIRDiskSpaceSession::IsBelowCriticalLevel - Enough Disk space [%d] in DriveNumber [%d].", 
+                static_cast<TInt>( volInfo.iFree ), 
+                static_cast<TInt>( aDriveNumber ) ); 
+	        }
+        }
+    
+    return ret;
+    }