1/************************************************************************** 2 * 3 * Copyright 2009 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20 * USE OR OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * The above copyright notice and this permission notice (including the 23 * next paragraph) shall be included in all copies or substantial portions 24 * of the Software. 25 * 26 **************************************************************************/ 27 28 29#ifndef U_DL_H_ 30#define U_DL_H_ 31 32 33#include "pipe/p_config.h" 34 35 36#if defined(PIPE_OS_WINDOWS) 37# define UTIL_DL_EXT ".dll" 38# define UTIL_DL_PREFIX "" 39#elif defined(PIPE_OS_APPLE) 40# define UTIL_DL_EXT ".dylib" 41# define UTIL_DL_PREFIX "lib" 42#else 43# define UTIL_DL_EXT ".so" 44# define UTIL_DL_PREFIX "lib" 45#endif 46 47 48struct util_dl_library; 49 50 51typedef void (*util_dl_proc)(void); 52 53 54/** 55 * Open a library dynamically. 56 */ 57struct util_dl_library * 58util_dl_open(const char *filename); 59 60 61/** 62 * Lookup a function in a library. 63 */ 64util_dl_proc 65util_dl_get_proc_address(struct util_dl_library *library, 66 const char *procname); 67 68 69/** 70 * Close a library. 71 */ 72void 73util_dl_close(struct util_dl_library *library); 74 75 76/** 77 * Return most recent error message. 78 */ 79const char * 80util_dl_error(void); 81 82 83#endif /* U_DL_H_ */ 84