--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/harvester/common/src/harvestermediaidutil.cpp	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,144 @@
+/*
+* Copyright (c) 2006-2009 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:  Utility class to keep a list of mediaid's
+*/
+
+#include "harvestermediaidutil.h"
+#include "mdsutils.h"
+
+
+CHarvesterMediaIdUtil* CHarvesterMediaIdUtil::NewL()
+	{
+	CHarvesterMediaIdUtil* self = new (ELeave) CHarvesterMediaIdUtil;
+	CleanupStack::PushL( self );
+	self->ConstructL();
+	CleanupStack::Pop( self );
+	return self;
+	}
+
+
+CHarvesterMediaIdUtil::CHarvesterMediaIdUtil()
+	{
+	// no implementation needed
+	}
+
+CHarvesterMediaIdUtil::~CHarvesterMediaIdUtil()
+	{
+	iFs.Close();
+	}
+
+void CHarvesterMediaIdUtil::ConstructL()
+	{
+	for ( TInt i = 0; i < KMaxDrives; i++ )
+		{
+		iMediaId[i] = 0;
+		}
+	User::LeaveIfError( iFs.Connect() );
+	}
+
+EXPORT_C TInt CHarvesterMediaIdUtil::GetMediaId( const TDesC& aUri, TUint32& aMediaId )
+	{
+    TChar ch = aUri[0];
+    TInt drive( 0 );
+    TInt err = RFs::CharToDrive( ch, drive );
+    if ( err == KErrNone )
+    	{
+    	// return mediaid if already in array
+    	if( iMediaId[drive] > 0 )
+    		{
+    		aMediaId = iMediaId[drive];
+    		return KErrNone;
+    		}
+    	
+    	// resolve mediaid and save into array
+	    err = MdsUtils::GetVolumeInfo( iFs, aUri, iVolumeInfo );
+	    if ( err == KErrNone )
+	    	{
+	    	iMediaId[drive] = iVolumeInfo.iUniqueID;
+	    	aMediaId = iVolumeInfo.iUniqueID;
+	    	return KErrNone;
+	    	}
+    	}
+    return err;
+	}
+
+EXPORT_C TInt CHarvesterMediaIdUtil::GetDriveLetter( TUint32 aMediaId, TChar& aChar )
+	{
+	for ( TInt i = 0; i < KMaxDrives; i++ )
+		{
+		if ( iMediaId[i] == aMediaId )
+			{
+			TInt err = RFs::DriveToChar( i, aChar );
+			return err;
+			}
+		}
+	return KErrNotFound;
+	}
+
+EXPORT_C void CHarvesterMediaIdUtil::RemoveMediaId( TUint32 aMediaId )
+	{
+	for ( TInt i = 0; i < KMaxDrives; i++ )
+		{
+		if ( iMediaId[i] == aMediaId )
+			{
+			iMediaId[i] = 0;
+			break;
+			}
+		}
+	}
+
+EXPORT_C CHarvesterMediaIdUtil& RMediaIdUtil::GetInstanceL()
+	{
+    TMediaIdUtilInfo* data =
+        static_cast<TMediaIdUtilInfo*>( 
+        		UserSvr::DllTls( KHarvesterMediaIdTLSKey ) );
+
+        CHarvesterMediaIdUtil* instance = NULL;
+
+    	if ( data )
+            {
+            instance = data->iMediaIdUtil;
+            data->iRefCount++;
+            }
+    	else
+    		{
+            instance = CHarvesterMediaIdUtil::NewL();
+            CleanupStack::PushL(instance);
+            TMediaIdUtilInfo* tmp = new (ELeave) TMediaIdUtilInfo;
+            tmp->iMediaIdUtil = instance;
+            tmp->iRefCount = 1;
+            UserSvr::DllSetTls( KHarvesterMediaIdTLSKey, tmp );
+            	
+            CleanupStack::Pop(instance);
+            }
+    	
+    	return *instance;
+	}
+
+EXPORT_C void RMediaIdUtil::ReleaseInstance()
+	{
+	TMediaIdUtilInfo* data = static_cast<TMediaIdUtilInfo*> (UserSvr::DllTls(
+			KHarvesterMediaIdTLSKey));
+	if (data)
+		{
+		data->iRefCount--;
+		if (data->iRefCount <= 0)
+			{
+			delete data->iMediaIdUtil;
+
+			delete data;
+			UserSvr::DllFreeTls(KHarvesterMediaIdTLSKey);
+			}
+		}
+	}