cachobj.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: cachobj.h,v 1.1.1.1.50.3 2004/07/09 01:48:00 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 _HXFIFOCACHE_
- #define _HXFIFOCACHE_
- #include "hxcache.h"
- class CChunkyRes;
- struct ChunkyCacheLayout
- {
- UINT16 size;
- GUID guid;
- };
-
- class HXFIFOCache : public IHXFIFOCache
- {
- private:
- LONG32 m_lRefCount;
- CChunkyRes* m_pChunkyRes;
- UINT32 m_ulCurrentReadPosition;
- UINT32 m_ulCurrentWritePosition;
- public:
- HXFIFOCache();
- ~HXFIFOCache();
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /*
- * IHXFIFOCache methods
- */
- /************************************************************************
- * Method:
- * IHXFIFOCache::Cache
- * Purpose:
- * To cache objects in a temporary storage for later retrieval
- *
- * Currently supported objects:
- * IHXBuffer
- * IHXValues
- * IHXPacket
- // $Private:
- * IHXTimeStampedBuffer
- * IHXClientPacket
- // $EndPrivate.
- *
- */
- STDMETHOD(Cache) (THIS_
- IUnknown* pObject);
- /************************************************************************
- * Method:
- * IHXFIFOCache::Retrieve
- * Purpose:
- *
- *
- */
- STDMETHOD(Retrieve) (THIS_
- REF(IUnknown*) pObject);
- /************************************************************************
- * Method:
- * IHXFIFOCache::Flush
- * Purpose:
- *
- *
- */
- STDMETHOD(Flush) (THIS);
- private:
- HX_RESULT CacheClientPacket(IHXClientPacket* pClientPacket);
- HX_RESULT CacheTimestampBuffer(IHXTimeStampedBuffer* pTimeStampBuffer);
- HX_RESULT CacheBuffer(IHXBuffer* pBuffer);
- HX_RESULT CachePacket(IHXPacket* pPacket);
- HX_RESULT CacheValues(IHXValues* pValues);
- };
- #endif /*_HXFIFOCACHE_*/