// 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;

	}