00001 /***************************************************************************
00002 *cr
00003 *cr (C) Copyright 1995-2019 The Board of Trustees of the
00004 *cr University of Illinois
00005 *cr All Rights Reserved
00006 *cr
00007 ***************************************************************************/
00008
00009 /***************************************************************************
00010 * RCS INFORMATION:
00011 *
00012 * $RCSfile: vmddlopen.h,v $
00013 * $Author: johns $ $Locker: $ $State: Exp $
00014 * $Revision: 1.12 $ $Date: 2019年01月17日 21:21:03 $
00015 *
00016 ***************************************************************************
00017 * DESCRIPTION:
00018 * Routines for loading dynamic link libraries and shared object files
00019 * on various platforms, abstracting from machine dependent APIs.
00020 *
00021 * LICENSE:
00022 * UIUC Open Source License
00023 * http://www.ks.uiuc.edu/Research/vmd/plugins/pluginlicense.html
00024 *
00025 ***************************************************************************/
00026
00027 /*
00028 * vmddlopen: thin multi-platform wrapper around dlopen/LoadLibrary
00029 */
00030
00031 #ifndef VMD_DLOPEN__
00032
00033 #ifdef __cplusplus
00034 extern "C" {
00035 #endif
00036
00037 /* Try to open the specified library. All symbols must be resolved or the
00038 * load will fail (RTLD_NOW).
00039 */
00040 void *vmddlopen(const char *fname);
00041
00042 /* Try to load the specified symbol using the given handle. Returns NULL if
00043 * the symbol cannot be loaded.
00044 */
00045 void *vmddlsym(void *h, const char *sym);
00046
00047 /* Unload the library. Return 0 on success, nonzero on error.
00048 */
00049 int vmddlclose(void *h);
00050
00051 /* Return last error from any of the above functions. Not thread-safe on
00052 * Windows due to static buffer in our code.
00053 */
00054 const char *vmddlerror(void);
00055
00056 #ifdef __cplusplus
00057 }
00058 #endif
00059
00060 #endif
00061