--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappcomponents/harvester/filehandler/src/mpxdiskspacewatcher.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,154 @@
+/*
+* 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:  Low disk space watcher
+*
+*/
+
+
+#include <e32base.h>
+#include <mpxlog.h>
+#include "mpxdiskspacewatcher.h"
+#include "mpxdiskspacewatcherobserver.h"
+
+// CONSTANTS
+const TInt KLowDiskThreshold  = 131072 * 4; // 128k *4
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CMPXDiskSpaceWatcher::CMPXDiskSpaceWatcher( RFs& aFs, TInt aDrive,
+                                            MMPXDiskSpaceObserver& aObs  )
+                                           : CActive( CActive::EPriorityHigh ),
+                                             iFs( aFs ),
+                                             iDriveToMonitor( aDrive ),
+                                             iObs( aObs )
+
+    {
+    CActiveScheduler::Add( this );
+    }
+
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CMPXDiskSpaceWatcher::ConstructL()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// Two-Phased Constructor
+// ---------------------------------------------------------------------------
+//
+CMPXDiskSpaceWatcher* CMPXDiskSpaceWatcher::NewL( RFs& aFs, TInt aDrive,
+                                                  MMPXDiskSpaceObserver& aObs  )
+    {
+    CMPXDiskSpaceWatcher* self = new( ELeave ) CMPXDiskSpaceWatcher( aFs,
+                                                                     aDrive,
+                                                                     aObs );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// destructor
+// ---------------------------------------------------------------------------
+//
+CMPXDiskSpaceWatcher::~CMPXDiskSpaceWatcher()
+    {
+    Cancel();
+    }
+
+// ---------------------------------------------------------------------------
+// Start the watcher
+// ---------------------------------------------------------------------------
+//
+void CMPXDiskSpaceWatcher::StartL()
+    {
+    TVolumeInfo volInfo;
+    TInt err = iFs.Volume( volInfo, iDriveToMonitor );
+
+    // Only start if the disk is actually working
+    //
+    if (!IsActive() && err == KErrNone )
+        {
+        MPX_DEBUG2("CMPXDiskSpaceWatcher::Start monitor drive %d",
+                   iDriveToMonitor);
+        iFs.NotifyDiskSpace( KLowDiskThreshold, iDriveToMonitor, iStatus );  //lint !e747
+        SetActive();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// Check if the disk is low on memory
+// ---------------------------------------------------------------------------
+//
+TBool CMPXDiskSpaceWatcher::IsLowOnDisk()
+    {
+    TVolumeInfo volInfo;
+    TInt err = iFs.Volume( volInfo, iDriveToMonitor );
+
+    MPX_DEBUG3("CMPXDiskSpaceWatcher::IsLowOnDisk disk %i free %i",
+               iDriveToMonitor, volInfo.iFree );
+
+    // Can only trust disk space amount if we could get volume info
+    //
+    if( (volInfo.iFree < KLowDiskThreshold) && err == KErrNone )
+        {
+        MPX_DEBUG1("LOW DISK SPACE");
+        return ETrue;
+        }
+    else
+        {
+        MPX_DEBUG1("DISK SPACE OK");
+        return EFalse;
+        }
+
+    }
+
+// ---------------------------------------------------------------------------
+// Gets the currently monitored drive number
+// ---------------------------------------------------------------------------
+//
+TInt CMPXDiskSpaceWatcher::CurrentDrive()
+    {
+    return iDriveToMonitor;
+    }
+
+// ---------------------------------------------------------------------------
+// Cancel the disk notification
+// ---------------------------------------------------------------------------
+//
+void CMPXDiskSpaceWatcher::DoCancel()
+    {
+    // Cancel the disk space monitoring
+    iFs.NotifyDiskSpaceCancel();
+    }
+
+// ---------------------------------------------------------------------------
+// Active Object callback
+// ---------------------------------------------------------------------------
+//
+void CMPXDiskSpaceWatcher::RunL()
+    {
+    // Callback to observer about which drive is low on disk space
+    //
+    iObs.HandleLowDiskEvent( iDriveToMonitor );
+    }
+
+// END OF FILE