aboutsummaryrefslogtreecommitdiff
path: root/cddl/contrib/opensolaris/lib/libnvpair/libnvpair.h
blob: b05669e506ba2a7098e6df4f1db82b0892659e7e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
 */

#ifndef	_LIBNVPAIR_H
#define	_LIBNVPAIR_H

#include <sys/nvpair.h>
#include <stdlib.h>
#include <stdio.h>
#include <regex.h>

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * All interfaces described in this file are private to Solaris, and
 * are subject to change at any time and without notice.  The public
 * nvlist/nvpair interfaces, as documented in manpage sections 3NVPAIR,
 * are all imported from <sys/nvpair.h> included above.
 */

extern int nvpair_value_match(nvpair_t *, int, char *, char **);
extern int nvpair_value_match_regex(nvpair_t *, int, char *, regex_t *,
    char **);

extern void nvlist_print(FILE *, nvlist_t *);
extern int nvlist_print_json(FILE *, nvlist_t *);
extern void dump_nvlist(nvlist_t *, int);

/*
 * Private nvlist printing interface that allows the caller some control
 * over output rendering (as opposed to nvlist_print and dump_nvlist).
 *
 * Obtain an opaque nvlist_prtctl_t cookie using nvlist_prtctl_alloc
 * (NULL on failure);  on return the cookie is set up for default formatting
 * and rendering.  Quote the cookie in subsequent customisation functions and
 * then pass the cookie to nvlist_prt to render the nvlist.  Finally,
 * use nvlist_prtctl_free to release the cookie.
 *
 * For all nvlist_lookup_xxx and nvlist_lookup_xxx_array functions
 * we have a corresponding brace of functions that appoint replacement
 * rendering functions:
 *
 *	extern void nvlist_prtctl_xxx(nvlist_prtctl_t,
 *	    void (*)(nvlist_prtctl_t ctl, void *private, const char *name,
 *	    xxxtype value))
 *
 *	and
 *
 *	extern void nvlist_prtctl_xxx_array(nvlist_prtctl_t,
 *	    void (*)(nvlist_prtctl_t ctl, void *private, const char *name,
 *	    xxxtype value, uint_t count))
 *
 * where xxxtype is the C datatype corresponding to xxx, eg int8_t for "int8"
 * and char * for "string".  The function that is appointed to render the
 * specified datatype receives as arguments the cookie, the nvlist
 * member name, the value of that member (or a pointer for array function),
 * and (for array rendering functions) a count of the number of elements.
 */

typedef struct nvlist_prtctl *nvlist_prtctl_t;	/* opaque */

enum nvlist_indent_mode {
	NVLIST_INDENT_ABS,	/* Absolute indentation */
	NVLIST_INDENT_TABBED	/* Indent with tabstops */
};

extern nvlist_prtctl_t nvlist_prtctl_alloc(void);
extern void nvlist_prtctl_free(nvlist_prtctl_t);
extern void nvlist_prt(nvlist_t *, nvlist_prtctl_t);

/* Output stream */
extern void nvlist_prtctl_setdest(nvlist_prtctl_t, FILE *);
extern FILE *nvlist_prtctl_getdest(nvlist_prtctl_t);

/* Indentation mode, start indent, indent increment; default tabbed/0/1 */
extern void nvlist_prtctl_setindent(nvlist_prtctl_t, enum nvlist_indent_mode,
    int, int);
extern void nvlist_prtctl_doindent(nvlist_prtctl_t, int);

enum nvlist_prtctl_fmt {
	NVLIST_FMT_MEMBER_NAME,		/* name fmt; default "%s = " */
	NVLIST_FMT_MEMBER_POSTAMBLE,	/* after nvlist member; default "\n" */
	NVLIST_FMT_BTWN_ARRAY		/* between array members; default " " */
};

extern void nvlist_prtctl_setfmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt,
    const char *);
extern void nvlist_prtctl_dofmt(nvlist_prtctl_t, enum nvlist_prtctl_fmt, ...);

/*
 * Function prototypes for interfaces that appoint a new rendering function
 * for single-valued nvlist members.
 *
 * A replacement function receives arguments as follows:
 *
 *	nvlist_prtctl_t	Print control structure; do not change preferences
 *			for this object from a print callback function.
 *
 *	void *		The function-private cookie argument registered
 *			when the replacement function was appointed.
 *
 *	nvlist_t *	The full nvlist that is being processed.  The
 *			rendering function is called to render a single
 *			member (name and value passed as below) but it may
 *			want to reference or incorporate other aspects of
 *			the full nvlist.
 *
 *	const char *	Member name to render
 *
 *	valtype		Value of the member to render
 *
 * The function must return non-zero if it has rendered output for this
 * member, or 0 if it wants to default to standard rendering for this
 * one member.
 */

#define	NVLIST_PRINTCTL_SVDECL(funcname, valtype) \
    extern void funcname(nvlist_prtctl_t, \
    int (*)(nvlist_prtctl_t, void *, nvlist_t *, const char *, valtype), \
    void *)

NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_boolean, int);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_boolean_value, boolean_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_byte, uchar_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int8, int8_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint8, uint8_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int16, int16_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint16, uint16_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int32, int32_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint32, uint32_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_int64, int64_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_uint64, uint64_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_double, double);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_string, char *);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_hrtime, hrtime_t);
NVLIST_PRINTCTL_SVDECL(nvlist_prtctlop_nvlist, nvlist_t *);

#undef	NVLIST_PRINTCTL_SVDECL	/* was just for "clarity" above */

/*
 * Function prototypes for interfaces that appoint a new rendering function
 * for array-valued nvlist members.
 *
 * One additional argument is taken: uint_t for the number of array elements
 *
 * Return values as above.
 */
#define	NVLIST_PRINTCTL_AVDECL(funcname, vtype) \
    extern void funcname(nvlist_prtctl_t, \
    int (*)(nvlist_prtctl_t, void *, nvlist_t *, const char *, vtype, uint_t), \
    void *)

NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_boolean_array, boolean_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_byte_array, uchar_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int8_array, int8_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint8_array, uint8_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int16_array, int16_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint16_array, uint16_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int32_array, int32_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint32_array, uint32_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_int64_array, int64_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_uint64_array, uint64_t *);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_string_array, char **);
NVLIST_PRINTCTL_AVDECL(nvlist_prtctlop_nvlist_array, nvlist_t **);

#undef	NVLIST_PRINTCTL_AVDECL	/* was just for "clarity" above */

#ifdef	__cplusplus
}
#endif

#endif	/* _LIBNVPAIR_H */