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