dllaccesserver.cpp

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. 
 *      
 * 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 ***** */ 

/************************************************************************
 *  Includes
 */
#include "hxtypes.h"
#include "dllaccesserver.h"
#include "hxassert.h"


/************************************************************************
 *  DLLAccessServer
 */
/************************************************************************
 *  Constuctore/Destructor
 */
DLLAccessServer::DLLAccessServer()
    : m_lRefCount(0)
{
    ;
}

DLLAccessServer::~DLLAccessServer()
{
    ;
}


/************************************************************************
 *  IHXDllAccess methods
 */
STDMETHODIMP DLLAccessServer::Open(const char* pDllName,
				   UINT16 uLibType)
{
    return (mDllAccess.open(pDllName, uLibType) == 0) ? HXR_OK : HXR_FAIL;
}

STDMETHODIMP DLLAccessServer::Close()
{
    return (mDllAccess.close() == DLLAccess::DLL_OK) ? HXR_OK : HXR_FAIL;
}

STDMETHODIMP_(void*) DLLAccessServer::GetSymbol(const char* pSymbolName)
{
    return mDllAccess.getSymbol(pSymbolName);
}

STDMETHODIMP_(ULONG32) DLLAccessServer::GetError()
{
    return mDllAccess.getError();
}

STDMETHODIMP_(const char*) DLLAccessServer::GetErrorString()
{
    return mDllAccess.getErrorString();
}

STDMETHODIMP_(const char*) DLLAccessServer::GetDllName()
{
    return mDllAccess.getDLLName();
}

STDMETHODIMP_(const char*) DLLAccessServer::GetDllVersion()
{
    return mDllAccess.getVersion();
}

STDMETHODIMP_(BOOL) DLLAccessServer::IsOpen()
{
    return mDllAccess.isOpen();
}

/************************************************************************
 *  IUnknown methods
 */
STDMETHODIMP DLLAccessServer::QueryInterface(REFIID riid, void** ppvObj)
{
    QInterfaceList qiList[] =
    {
	{ GET_IIDHANDLE(IID_IUnknown), (IUnknown*) (IHXDllAccess*) this},
	{ GET_IIDHANDLE(IID_IHXDllAccess), (IHXDllAccess*) this},
    };

    return QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
}

STDMETHODIMP_(ULONG32) DLLAccessServer::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

STDMETHODIMP_(ULONG32) DLLAccessServer::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}