FreeBSD/Linux Kernel Cross Reference
sys/sys/dnv.h
1 /*-
2 * Copyright (c) 2013 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: releng/10.4/sys/sys/dnv.h 292973 2015-12-31 03:28:14Z ngie $
30 */
31
32 #ifndef _DNV_H_
33 #define _DNV_H_
34
35 #include <sys/cdefs.h>
36
37 #ifndef _KERNEL
38 #include <stdarg.h>
39 #include <stdbool.h>
40 #include <stdint.h>
41 #endif
42
43 #ifndef _NVLIST_T_DECLARED
44 #define _NVLIST_T_DECLARED
45 struct nvlist;
46
47 typedef struct nvlist nvlist_t;
48 #endif
49
50 __BEGIN_DECLS
51
52 /*
53 * The dnvlist_get functions returns value associated with the given name.
54 * If it returns a pointer, the pointer represents internal buffer and should
55 * not be freed by the caller.
56 * If no element of the given name and type exists, the function will return
57 * provided default value.
58 */
59
60 bool dnvlist_get_bool(const nvlist_t *nvl, const char *name, bool defval);
61 uint64_t dnvlist_get_number(const nvlist_t *nvl, const char *name, uint64_t defval);
62 const char *dnvlist_get_string(const nvlist_t *nvl, const char *name, const char *defval);
63 const nvlist_t *dnvlist_get_nvlist(const nvlist_t *nvl, const char *name, const nvlist_t *defval);
64 int dnvlist_get_descriptor(const nvlist_t *nvl, const char *name, int defval);
65 const void *dnvlist_get_binary(const nvlist_t *nvl, const char *name, size_t *sizep, const void *defval, size_t defsize);
66
67 #ifndef _KERNEL
68 bool dnvlist_getf_bool(const nvlist_t *nvl, bool defval, const char *namefmt, ...) __printflike(3, 4);
69 uint64_t dnvlist_getf_number(const nvlist_t *nvl, uint64_t defval, const char *namefmt, ...) __printflike(3, 4);
70 const char *dnvlist_getf_string(const nvlist_t *nvl, const char *defval, const char *namefmt, ...) __printflike(3, 4);
71 const nvlist_t *dnvlist_getf_nvlist(const nvlist_t *nvl, const nvlist_t *defval, const char *namefmt, ...) __printflike(3, 4);
72 int dnvlist_getf_descriptor(const nvlist_t *nvl, int defval, const char *namefmt, ...) __printflike(3, 4);
73 const void *dnvlist_getf_binary(const nvlist_t *nvl, size_t *sizep, const void *defval, size_t defsize, const char *namefmt, ...) __printflike(5, 6);
74
75 bool dnvlist_getv_bool(const nvlist_t *nvl, bool defval, const char *namefmt, va_list nameap) __printflike(3, 0);
76 uint64_t dnvlist_getv_number(const nvlist_t *nvl, uint64_t defval, const char *namefmt, va_list nameap) __printflike(3, 0);
77 const char *dnvlist_getv_string(const nvlist_t *nvl, const char *defval, const char *namefmt, va_list nameap) __printflike(3, 0);
78 const nvlist_t *dnvlist_getv_nvlist(const nvlist_t *nvl, const nvlist_t *defval, const char *namefmt, va_list nameap) __printflike(3, 0);
79 int dnvlist_getv_descriptor(const nvlist_t *nvl, int defval, const char *namefmt, va_list nameap) __printflike(3, 0);
80 const void *dnvlist_getv_binary(const nvlist_t *nvl, size_t *sizep, const void *defval, size_t defsize, const char *namefmt, va_list nameap) __printflike(5, 0);
81 #endif
82
83 /*
84 * The dnvlist_take functions returns value associated with the given name and
85 * remove corresponding nvpair.
86 * If it returns a pointer, the caller has to free it.
87 * If no element of the given name and type exists, the function will return
88 * provided default value.
89 */
90
91 bool dnvlist_take_bool(nvlist_t *nvl, const char *name, bool defval);
92 uint64_t dnvlist_take_number(nvlist_t *nvl, const char *name, uint64_t defval);
93 char *dnvlist_take_string(nvlist_t *nvl, const char *name, char *defval);
94 nvlist_t *dnvlist_take_nvlist(nvlist_t *nvl, const char *name, nvlist_t *defval);
95 int dnvlist_take_descriptor(nvlist_t *nvl, const char *name, int defval);
96 void *dnvlist_take_binary(nvlist_t *nvl, const char *name, size_t *sizep, void *defval, size_t defsize);
97
98 #ifndef _KERNEL
99 bool dnvlist_takef_bool(nvlist_t *nvl, bool defval, const char *namefmt, ...) __printflike(3, 4);
100 uint64_t dnvlist_takef_number(nvlist_t *nvl, uint64_t defval, const char *namefmt, ...) __printflike(3, 4);
101 char *dnvlist_takef_string(nvlist_t *nvl, char *defval, const char *namefmt, ...) __printflike(3, 4);
102 nvlist_t *dnvlist_takef_nvlist(nvlist_t *nvl, nvlist_t *defval, const char *namefmt, ...) __printflike(3, 4);
103 int dnvlist_takef_descriptor(nvlist_t *nvl, int defval, const char *namefmt, ...) __printflike(3, 4);
104 void *dnvlist_takef_binary(nvlist_t *nvl, size_t *sizep, void *defval, size_t defsize, const char *namefmt, ...) __printflike(5, 6);
105
106 bool dnvlist_takev_bool(nvlist_t *nvl, bool defval, const char *namefmt, va_list nameap) __printflike(3, 0);
107 uint64_t dnvlist_takev_number(nvlist_t *nvl, uint64_t defval, const char *namefmt, va_list nameap) __printflike(3, 0);
108 char *dnvlist_takev_string(nvlist_t *nvl, char *defval, const char *namefmt, va_list nameap) __printflike(3, 0);
109 nvlist_t *dnvlist_takev_nvlist(nvlist_t *nvl, nvlist_t *defval, const char *namefmt, va_list nameap) __printflike(3, 0);
110 int dnvlist_takev_descriptor(nvlist_t *nvl, int defval, const char *namefmt, va_list nameap) __printflike(3, 0);
111 void *dnvlist_takev_binary(nvlist_t *nvl, size_t *sizep, void *defval, size_t defsize, const char *namefmt, va_list nameap) __printflike(5, 0);
112 #endif
113
114 __END_DECLS
115
116 #endif /* !_DNV_H_ */
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