datffact.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _DATA_FILE_FACT_H_
- #define _DATA_FILE_FACT_H_
- /*
- *
- * Interface:
- *
- * IHXDataFileFactory & IHXDataFile
- *
- * Purpose:
- *
- * This interface provides an API for creating datafile objects
- * based on passed in options and platform compiled for.
- *
- * IHXDataFileFactory
- * |
- * IHXDataFile
- * |__________________________________________________...
- * | | | |
- * Buffered UnBuffered Mem.Mapped Async
- *
- */
- #include "hxtypes.h"
- #include "hxcom.h"
- #include "hxdataf.h"
- class HXDataFileFactory : public IHXDataFileFactory
- {
- public:
- HXDataFileFactory();
- virtual ~HXDataFileFactory();
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
-
- STDMETHOD_(ULONG32, AddRef) (THIS);
-
- STDMETHOD_(ULONG32, Release) (THIS);
-
- /*
- * IHXDataFileFactory methods
- */
- /* Creates a datafile for buffered or unbuffered I/O
- * By default create an IHXDataFile for BUFFERED file I/O
- * for all platforms, except SOLARIS, where UNBUFFERED
- * file I/O is required.
- */
- STDMETHOD(CreateFile) (THIS_
- REF(IHXDataFile*) pDataFile,
- IUnknown* pContext,
- REF(IUnknown*) pPersistantObject,
- BOOL bDisableMemoryMappedIO,
- UINT32 ulChunkSize,
- BOOL bEnableFileLocking,
- BOOL bPreferAsyncIO);
- protected:
- LONG32 m_lRefCount;
- };
- inline
- HXDataFileFactory::HXDataFileFactory()
- : m_lRefCount(0)
- {
- }
- inline
- HXDataFileFactory::~HXDataFileFactory()
- {
- }
- #endif /* _DATA_FILE_FACT_H_ */