mempager_inline.h

来自「symbian 下的helix player源代码」· C头文件 代码 · 共 90 行

/* ***** 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 
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 * 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 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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 * ***** END LICENSE BLOCK ***** */ 

#ifndef MEMPAGER_INLINE_H
#define MEMPAGER_INLINE_H

/****************************************************************************
 *  CMemPager::PageIn
 */
HX_RESULT CMemPager::PageIn(UINT8* pVirtualAddr,
			    ULONG32 ulSize,
			    UINT8* &pPhysicalBaseAddr)
{
    if (IsPageIn(pVirtualAddr, ulSize))
    {
	pPhysicalBaseAddr = m_pPagePhysicalAddr;
	return HXR_OK;
    }
    else if (IsPageAdressable(pVirtualAddr, ulSize))
    {
	return _PageIn(pVirtualAddr,
	    ulSize,
	    pPhysicalBaseAddr);
    }
    else
    {
	return HXR_FAIL;
    }
}

/****************************************************************************
 *  CMemPager::PageIn
 */
HX_RESULT CMemPager::LoadPage(IHXFileResponse* pResponse)
{
    HX_RESULT retVal = HXR_UNEXPECTED;
    
    if (m_ulFaultedPageSize && 
	(m_State == MEMPGR_Ready) &&
	pResponse)
    {
	HX_RELEASE(m_pResponse);
	m_pResponse = pResponse;
	pResponse->AddRef();
	retVal = _LoadPage();
	if (retVal != HXR_OK)
	{
	    HX_RELEASE(m_pResponse);
	}
    }
    
    return retVal;
}

#endif	// MEMPAGER_INLINE_H