// Copyright (c) 2004-2009 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:

 //

 #include "S32STOR.H"

 #include "S32FILE.H"

 #include "U32PERM.H"

 #include "S32FileIter.h"

 /**

 After calling Close() RPermanentFileStoreIter instance could be used again

 with the same or some other CPermanentFileStore instance.

 */

 EXPORT_C void RPermanentFileStoreIter::Close()

 	{

 	if(iImpl)

 		{

 		iImpl->Close();

 		}

 	delete iImpl;

 	iImpl = NULL;

 	}

 /**

 Starts a CPermanentFileStore stream IDs iteration.

 @param aStore CPermanentFileStore instance, which stream IDs sequence we want to 

 explore.

 @leave KErrNoMemory

 */

 EXPORT_C void RPermanentFileStoreIter::ResetLC(const CPermanentFileStore& aStore)

 	{

 	__ASSERT_DEBUG(!iImpl, User::Invariant());

 	::CleanupClosePushL(*this);

 	CPermanentStoreCoord& coord = aStore.CoordL();

 	CPermanentStoreToc& table = coord.TableL();

 	iImpl = new (ELeave) RPermanentStoreTocIter(table);

 	iImpl->ResetL();

 	}

 /**

 Retrieves the next stream ID from stream IDs sequence, controlled by CPermanentFileStore 

 instance. 

 @return The next stream ID or KNullStreamIdValue if there are no more stream IDs.

 @leave KErrNoMemory

 */

 EXPORT_C TStreamId RPermanentFileStoreIter::NextL()

 	{

 	__ASSERT_DEBUG(iImpl, User::Invariant());

 	TStreamId streamId = KNullStreamIdValue;

 	CPermanentStoreToc::TEntry entry;

 	while(iImpl->NextL(entry))

 		{

 		if((TUint32)entry.handle < KMaxStreamIdValue)

 			{

 			streamId = entry.handle;

 			break;

 			}

 		}

 	return streamId;

 	}