--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/email/imum/Mtms/Src/ImumDiskSpaceObserverOperation.cpp	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,152 @@
+/*
+* 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: 
+*     Class for observing free disk space and if disk space goes under critical
+*     level this cancels itself.
+
+*
+*/
+
+
+// INCLUDE FILES
+#include <e32base.h>                            // Basic Symbian Includes
+#include <MuiuMsvUiServiceUtilities.h>          // Muiu Utilities
+#include <ImumInternalApi.h>        // CImumInternalApi
+
+#include "ImumDiskSpaceObserverOperation.h"
+#include "ImumDiskSpaceObserver.h"              // CImumDiskSpaceObserver
+#include "ImumMtmLogging.h"
+
+// CONSTANTS
+const TUint KImumCriticalThreshold = 131072;
+const TUint KImumSafetyMargin = 204800;
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ----------------------------------------------------------------------------
+CImumDiskSpaceObserverOperation::CImumDiskSpaceObserverOperation(
+    CImumInternalApi& aMailboxApi,
+    TInt aPriority,
+    TRequestStatus& aObserverRequestStatus,
+    MMsvProgressReporter& aReporter)
+    :
+    CImumOnlineOperation(
+        aMailboxApi,
+        aPriority,
+        aObserverRequestStatus,
+        aReporter)
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::CImumDiskSpaceObserverOperation, 0, KImumMtmLog );
+    IMUM_IN();
+    IMUM_OUT();
+    
+    }
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation::BaseConstructL()
+// ----------------------------------------------------------------------------
+void CImumDiskSpaceObserverOperation::BaseConstructL(TUid aMtmType)
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::BaseConstructL, 0, KImumMtmLog );
+    IMUM_IN();
+    
+    iDiskObserver = CImumDiskSpaceObserver::NewL(
+        *this, iMsvSession.FileSession() );
+    
+    // Create own instance of API because ImumDiskSpaceObserver outlives
+    // the owner of iMailboxApi reference in ImumOnlineOperation
+    iEmailApi = CreateEmailApiL();
+    
+    CImumOnlineOperation::BaseConstructL( aMtmType );
+    
+    IMUM_OUT();
+    }
+
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation::~CImumDiskSpaceObserverOperation()
+// ----------------------------------------------------------------------------
+CImumDiskSpaceObserverOperation::~CImumDiskSpaceObserverOperation()
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::~CImumDiskSpaceObserverOperation, 0, KImumMtmLog );
+    IMUM_IN();
+    
+    delete iEmailApi;
+    delete iDiskObserver;
+    iDiskObserver = NULL;
+    IMUM_OUT();
+    }
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation::DoCancel()
+// ----------------------------------------------------------------------------
+//
+void CImumDiskSpaceObserverOperation::DoCancel()
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::DoCancel, 0, KImumMtmLog );
+    IMUM_IN();
+    
+    iDiskObserver->Cancel();
+    CImumOnlineOperation::DoCancel();
+    IMUM_OUT();
+    }
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation::DoDiskSpaceCheckL()
+// ----------------------------------------------------------------------------
+//
+TInt CImumDiskSpaceObserverOperation::DoDiskSpaceCheckL()
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::DoDiskSpaceCheckL, 0, KImumMtmLog );
+    IMUM_IN();
+    
+    // Make sure we are operating in safe levels
+    if( !MsvUiServiceUtilities::DiskSpaceBelowCriticalLevelWithOverheadL(
+    	iEmailApi->MsvSession(), 0, KImumSafetyMargin ) )
+        {
+        // Get current drive
+        TInt currentDrive = iEmailApi->MsvSession().CurrentDriveL();
+        TInt64 currentLimit = KImumCriticalThreshold + KImumSafetyMargin;
+
+        // Enough space, issue new request
+        iDiskObserver->Cancel();
+        iDiskObserver->NotifyDiskSpace( currentLimit, currentDrive );
+        IMUM_OUT();
+
+        return KErrNone;
+        }
+    IMUM_OUT();
+
+    // Disk full for operation, indicate with error
+    return KErrDiskFull;
+    }
+
+// ----------------------------------------------------------------------------
+// CImumDiskSpaceObserverOperation::HandleDiskSpaceEvent()
+// ----------------------------------------------------------------------------
+//
+void CImumDiskSpaceObserverOperation::HandleDiskSpaceEvent()
+    {
+    IMUM_CONTEXT( CImumDiskSpaceObserverOperation::HandleDiskSpaceEvent, 0, KImumMtmLog );
+    IMUM_IN();
+    
+    Cancel();
+    IMUM_OUT();
+    }
+
+//  End of File
+
+