unix_library.h
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上传日期:2007-06-06
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- /* ***** 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 ***** */
- #ifndef __UNIX_LIBRARY_H
- #define __UNIX_LIBRARY_H
- #include "hxtypes.h"
- #define HMODULE ULONG32
- #define HINSTANCE ULONG32
- // just a large number used to identify bad handles
- #define DL_MAX_NUM_LIBS 9000000L
- #define DL_BAD_LIB_ID DL_MAX_NUM_LIBS + 1
- /* Functions to load & release Shared Libraries */
- /////////////////////////////////////////////////////////////////////////////
- //
- // Function:
- //
- // LoadLibrary()
- //
- // Purpose:
- //
- // Called to load a Unix Shared Library given the library's name
- //
- // Parameters:
- //
- // char* dllname
- //
- // Return:
- //
- // ULONG32
- // Returns a handle to the library which is used to identify which
- // library is being accessed in subsequent calls to these functions.
- //
- ULONG32 LoadLibrary(const char* dllname);
- /////////////////////////////////////////////////////////////////////////////
- //
- // Function:
- //
- // FreeLibrary()
- //
- // Purpose:
- //
- // Called to free a Shared Library. If this is not called the library
- // will be freed when the application quits.
- //
- // Parameters:
- //
- // HMODULE lib
- // This is an opaque handle identifying the library.
- //
- // Return:
- //
- // none
- //
- void FreeLibrary(HMODULE lib);
- /////////////////////////////////////////////////////////////////////////////
- //
- // Function:
- //
- // GetProcAddress()
- //
- // Purpose:
- //
- // Called to get a function pointer in a Shared Library.
- //
- // Parameters:
- //
- // HMODULE lib
- //
- // char* function
- // The function name
- //
- // Return:
- //
- // void*
- // The address of the function.
- //
- void* GetProcAddress(HMODULE lib, char* function);
- #if defined RAFreeLibrary
- #undef RAFreeLibrary
- #endif
- #define RAFreeLibrary(x) FreeLibrary(x)
- #endif // ifndef