hxdllldr.cpp
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上传日期:2007-06-06
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文件大小:3k
- /* ***** 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 ***** */
- #include "hxtypes.h"
- #include "hlxclib/windows.h"
- #include "hxstrutl.h"
- #include "hxdllldr.h"
- LPHXDLLNode g_pHXDLLListHead = NULL;
- LPHXDLLNode g_pHXDLLListTail = NULL;
- HINSTANCE
- HXLoadLibrary(const char* pszDLL)
- {
- char* pszName = NULL;
- HINSTANCE hLib = NULL;
- LPHXDLLNode pDLLNode = NULL;
- if (!pszDLL)
- {
- goto cleanup;
- }
- pDLLNode = g_pHXDLLListHead;
- while (pDLLNode)
- {
- if (!strcasecmp(pDLLNode->pszName, pszDLL))
- {
- hLib = pDLLNode->hLib;
- break;
- }
- pDLLNode = (LPHXDLLNode)pDLLNode->next;
- }
- if (!hLib)
- {
- hLib = LoadLibrary(OS_STRING(pszDLL));
- if (hLib)
- {
- pszName = new char[strlen(pszDLL) + 1];
- strcpy(pszName, pszDLL); /* Flawfinder: ignore */
- pDLLNode = new HXDLLNode;
-
- pDLLNode->pszName = pszName;
- pDLLNode->hLib = hLib;
- pDLLNode->next = NULL;
- if (!g_pHXDLLListHead)
- {
- g_pHXDLLListHead = pDLLNode;
- g_pHXDLLListTail = g_pHXDLLListHead;
- }
- else
- {
- g_pHXDLLListTail->next = pDLLNode;
- g_pHXDLLListTail = pDLLNode;
- }
- }
- }
- cleanup:
- return hLib;
- }
- void
- HXFreeLibrary(const char* pszDLL)
- {
- // no-op
- // actual FreeLibrary() in Close()
- }
- void
- HXCloseLibrary(void)
- {
- HINSTANCE hLib = NULL;
- LPHXDLLNode pDLLNode = NULL;
- pDLLNode = g_pHXDLLListHead;
- while (pDLLNode)
- {
- g_pHXDLLListHead = (LPHXDLLNode)pDLLNode->next;
- HX_VECTOR_DELETE(pDLLNode->pszName);
- FreeLibrary(pDLLNode->hLib);
- HX_DELETE(pDLLNode);
- pDLLNode = g_pHXDLLListHead;
- }
- g_pHXDLLListHead = NULL;
- g_pHXDLLListTail = NULL;
- return;
- }