1/*
2Copyright (c) 2012, Broadcom Europe Ltd
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in the
11 documentation and/or other materials provided with the distribution.
12 * Neither the name of the copyright holder nor the
13 names of its contributors may be used to endorse or promote products
14 derived from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*/
27
28/*=============================================================================
29VCOS - abstraction over dynamic library opening
30=============================================================================*/
31
32#ifndef VCOS_DLFCN_H
33#define VCOS_DLFCN_H
34
35#include "interface/vcos/vcos_types.h"
36#include "vcos.h"
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42/**
43 * \file
44 *
45 * Loading dynamic libraries. See also dlfcn.h.
46 */
47
48/** Open a dynamic library.
49 *
50 * @param name name of the library
51 * @param mode Load lazily or immediately (VCOS_DL_LAZY, VCOS_DL_NOW, VCOS_DL_LOCAL, VCOS_DL_GLOBAL).
52 *
53 * @return A handle for use in subsequent calls.
54 */
55VCOSPRE_ void * VCOSPOST_ vcos_dlopen(const char *name, int mode);
56
57/** Look up a symbol.
58 *
59 * @param handle Handle to open
60 * @param name Name of function
61 *
62 * @return Function pointer, or NULL.
63 */
64VCOSPRE_ void VCOSPOST_ (*vcos_dlsym(void *handle, const char *name))(void);
65
66/** Close a library
67 *
68 * @param handle Handle to close
69 */
70VCOSPRE_ int VCOSPOST_ vcos_dlclose (void *handle);
71
72/** Return error message from library.
73 *
74 * @param err On return, set to non-zero if an error has occurred
75 * @param buf Buffer to write error to
76 * @param len Size of buffer (including terminating NUL).
77 */
78VCOSPRE_ int VCOSPOST_ vcos_dlerror(int *err, char *buf, size_t buflen);
79
80
81#ifdef __cplusplus
82}
83#endif
84#endif
85
86
87