prefmgr.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
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 * 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.  
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 * 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. 
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 * This file, and the files included with this file, is distributed and made 
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 * Technology Compatibility Kit Test Suite(s) Location: 
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 * ***** END LICENSE BLOCK ***** */ 

#ifndef _PREFETCHMANAGER_
#define _PREFETCHMANAGER_

class PrefetchManager
{
public:
    PrefetchManager(HXPlayer* pPlayer);
    ~PrefetchManager();

    UINT16	GetNumSources(void);
    HX_RESULT	AddSource(SourceInfo* pSourceInfo);
    HX_RESULT	GetSource(UINT16 uSourceIndex, SourceInfo*& pSourceInfo);
    BOOL	Lookup(IHXValues* pValues, SourceInfo*& pSourceInfo);
    BOOL	Lookup(HXSource* pSource, SourceInfo*& pSourceInfo);
    HX_RESULT	RemoveSource(SourceInfo* pSourceInfo);
    
    HX_RESULT	ProcessIdle(void);    
    void	Cleanup(void);

protected:
    BOOL		m_bSourceMapUpdated;
    UINT16		m_uSourceCount;
    HXPlayer*		m_pPlayer;
    IHXInterruptState* m_pInterruptState;
    CHXMapLongToObj*	m_pSourceMap;
};
#endif /*_PREFETCHMANAGER_*/