dbindex.cpp
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上传日期:2013-07-19
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: dbindex.cpp,v 1.1.1.1.50.1 2004/07/09 02:07:27 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 ***** */
- #include "dbindex.h"
- #include "ihxpckts.h"
-
- // XXXND FIX Is there a better size for this?
- const UINT32 kInitHashTableSize = 47;
- //---------------------- CPluginDatabaseIndex
- CPluginDatabaseIndex::CPluginDatabaseIndex()
- {
- }
- // static
- CPluginDatabaseIndex* CPluginDatabaseIndex::CreateIndex( EPluginIndexType indexType )
- {
- CPluginDatabaseIndex* pNewIndex = NULL;
- switch( indexType )
- {
- case kIndex_StringType:
- pNewIndex = new CPluginDatabaseIndexString();
- break;
- case kIndex_GUIDType:
- pNewIndex = new CPluginDatabaseIndexGUID();
- break;
- }
- return pNewIndex;
- }
- //---------------------- CPluginDatabaseIndexGUID
- CPluginDatabaseIndexGUID::CPluginDatabaseIndexGUID()
- {
- m_mapGUIDToIUnknown.InitHashTable( kInitHashTableSize, FALSE );
- }
- CPluginDatabaseIndexGUID::~CPluginDatabaseIndexGUID()
- {
- Reset();
- }
- HX_RESULT CPluginDatabaseIndexGUID::AddItem( IHXBuffer* pData, IUnknown* pIUnknown )
- {
- HX_RESULT result = HXR_FAIL;
- if( pData && pIUnknown )
- {
- // Treat the stuff in pData like a GUID
- GUID* pGUID = (GUID*) pData->GetBuffer();
- void* pValue = NULL;
- if( !m_mapGUIDToIUnknown.Lookup( *pGUID, pValue ) )
- {
- m_mapGUIDToIUnknown.SetAt( *pGUID, pIUnknown );
- pIUnknown->AddRef();
- result = HXR_OK;
- }
- }
- return result;
- }
- HX_RESULT CPluginDatabaseIndexGUID::FindItem( const void* pData, IUnknown** pIUnknown )
- {
- HX_RESULT result = HXR_FAIL;
- if( pIUnknown )
- {
- *pIUnknown = NULL;
- void* pValue = NULL;
- if( m_mapGUIDToIUnknown.Lookup( *(GUID*) pData, pValue ) )
- {
- *pIUnknown = (IUnknown*) pValue;
- (*pIUnknown)->AddRef();
-
- result = HXR_OK;
- }
- }
- return result;
- }
- HX_RESULT CPluginDatabaseIndexGUID::RemoveItem( IUnknown* pIValue )
- {
- HX_RESULT result = HXR_FAIL;
- CHXMapGUIDToObj::Iterator iter = m_mapGUIDToIUnknown.Begin();
- CHXMapGUIDToObj::Iterator iterEnd = m_mapGUIDToIUnknown.End();
- for( ; iter != iterEnd; ++iter )
- {
- // Get the IUnknown
- if( pIValue == (IUnknown*)(*iter) )
- {
- if( m_mapGUIDToIUnknown.RemoveKey( *iter.get_key() ) )
- {
- HX_RELEASE(pIValue);
- result = HXR_OK;
- }
- break;
- }
- }
- return result;
- }
- void CPluginDatabaseIndexGUID::Reset()
- {
- CHXMapGUIDToObj::Iterator iter = m_mapGUIDToIUnknown.Begin();
- CHXMapGUIDToObj::Iterator iterEnd = m_mapGUIDToIUnknown.End();
- for( ; iter != iterEnd; ++iter )
- {
- // Get the IUnknown
- IUnknown* pUnknown = (IUnknown*)(*iter);
- HX_RELEASE(pUnknown);
- }
- m_mapGUIDToIUnknown.RemoveAll();
- }
- //------------------------------ CPluginDatabaseIndexString
- CPluginDatabaseIndexString::CPluginDatabaseIndexString()
- {
- }
- CPluginDatabaseIndexString::~CPluginDatabaseIndexString()
- {
- Reset();
- }
- HX_RESULT CPluginDatabaseIndexString::AddItem( IHXBuffer* pData, IUnknown* pIUnknown )
- {
- HX_RESULT result = HXR_FAIL;
- if( pData && pIUnknown )
- {
- const char *pCharData = (const char*) pData->GetBuffer();
- void* pValue = NULL;
- if( !m_mapStrToIUnknown.Lookup( pCharData, pValue ) )
- {
- m_mapStrToIUnknown.SetAt( pCharData, pIUnknown );
- pIUnknown->AddRef();
- result = HXR_OK;
- }
- }
- return result;
- }
- HX_RESULT CPluginDatabaseIndexString::FindItem( const void* pData, IUnknown** pIUnknown )
- {
- HX_RESULT result = HXR_FAIL;
- if( pIUnknown )
- {
- *pIUnknown = NULL;
- void* pValue = NULL;
- if( m_mapStrToIUnknown.Lookup( (const char*) pData, pValue ) )
- {
- *pIUnknown = (IUnknown*) pValue;
- (*pIUnknown)->AddRef();
-
- result = HXR_OK;
- }
- }
- return result;
- }
- HX_RESULT CPluginDatabaseIndexString::RemoveItem( IUnknown* pIValue )
- {
- HX_RESULT result = HXR_FAIL;
- CHXMapStringToOb::Iterator iter = m_mapStrToIUnknown.Begin();
- CHXMapStringToOb::Iterator iterEnd = m_mapStrToIUnknown.End();
- for( ; iter != iterEnd; ++iter )
- {
- // Get the IUnknown
- if( pIValue == (IUnknown*)(*iter) )
- {
- if( m_mapStrToIUnknown.RemoveKey( iter.get_key() ) )
- {
- HX_RELEASE(pIValue);
- result = HXR_OK;
- }
- break;
- }
- }
- return result;
- }
- void CPluginDatabaseIndexString::Reset()
- {
- CHXMapStringToOb::Iterator iter = m_mapStrToIUnknown.Begin();
- CHXMapStringToOb::Iterator iterEnd = m_mapStrToIUnknown.End();
- for( ; iter != iterEnd; ++iter )
- {
- // Get the IUnknown
- IUnknown* pUnknown = (IUnknown*)(*iter);
- HX_RELEASE(pUnknown);
- }
- m_mapStrToIUnknown.RemoveAll();
- }