sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "S32STOR.H"
sl@0: #include "S32FILE.H"
sl@0: #include "U32PERM.H"
sl@0: #include "S32FileIter.h"
sl@0: 
sl@0: /**
sl@0: After calling Close() RPermanentFileStoreIter instance could be used again
sl@0: with the same or some other CPermanentFileStore instance.
sl@0: */
sl@0: EXPORT_C void RPermanentFileStoreIter::Close()
sl@0: 	{
sl@0: 	if(iImpl)
sl@0: 		{
sl@0: 		iImpl->Close();
sl@0: 		}
sl@0: 	delete iImpl;
sl@0: 	iImpl = NULL;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Starts a CPermanentFileStore stream IDs iteration.
sl@0: @param aStore CPermanentFileStore instance, which stream IDs sequence we want to 
sl@0: explore.
sl@0: @leave KErrNoMemory
sl@0: */
sl@0: EXPORT_C void RPermanentFileStoreIter::ResetLC(const CPermanentFileStore& aStore)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(!iImpl, User::Invariant());
sl@0: 	::CleanupClosePushL(*this);
sl@0: 	CPermanentStoreCoord& coord = aStore.CoordL();
sl@0: 	CPermanentStoreToc& table = coord.TableL();
sl@0: 	iImpl = new (ELeave) RPermanentStoreTocIter(table);
sl@0: 	iImpl->ResetL();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Retrieves the next stream ID from stream IDs sequence, controlled by CPermanentFileStore 
sl@0: instance. 
sl@0: @return The next stream ID or KNullStreamIdValue if there are no more stream IDs.
sl@0: @leave KErrNoMemory
sl@0: */
sl@0: EXPORT_C TStreamId RPermanentFileStoreIter::NextL()
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iImpl, User::Invariant());
sl@0: 	TStreamId streamId = KNullStreamIdValue;
sl@0: 	CPermanentStoreToc::TEntry entry;
sl@0: 	while(iImpl->NextL(entry))
sl@0: 		{
sl@0: 		if((TUint32)entry.handle < KMaxStreamIdValue)
sl@0: 			{
sl@0: 			streamId = entry.handle;
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	return streamId;
sl@0: 	}