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
|
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#ifndef _BSDSTAT_H_
#define _BSDSTAT_H_
/*
* Base class for managing+displaying periodically collected statistics.
*/
/*
* Statistic definition/description. The are defined
* for stats that correspond 1-1 w/ a collected stat
* and for stats that are calculated indirectly.
*/
struct fmt {
int width; /* printed field width */
const char* name; /* stat field name referenced by user */
const char* label; /* printed header label */
const char* desc; /* verbose description */
};
#define BSDSTAT_DECL_METHODS(_p) \
/* set the format of the statistics to display */ \
void (*setfmt)(_p, const char *); \
/* collect+store ``current statistics'' */ \
void (*collect_cur)(_p); \
/* collect+store ``total statistics'' */ \
void (*collect_tot)(_p); \
/* update ``total statistics'' if necessary from current */ \
void (*update_tot)(_p); \
/* format a statistic from the current stats */ \
int (*get_curstat)(_p, int, char [], size_t); \
/* format a statistic from the total stats */ \
int (*get_totstat)(_p, int, char [], size_t); \
/* print field headers terminated by a \n */ \
void (*print_header)(_p, FILE *); \
/* print current statistics terminated by a \n */ \
void (*print_current)(_p, FILE *); \
/* print total statistics terminated by a \n */ \
void (*print_total)(_p, FILE *); \
/* print total statistics in a verbose (1 stat/line) format */ \
void (*print_verbose)(_p, FILE *); \
/* print available statistics */ \
void (*print_fields)(_p, FILE *)
/*
* Statistics base class. This class is not usable; only
* classes derived from it are useful.
*/
struct bsdstat {
const char *name; /* statistics name, e.g. wlanstats */
const struct fmt *stats; /* statistics in class */
int nstats; /* number of stats */
#define FMTS_IS_STAT 0x80 /* the following two bytes are the stat id */
unsigned char fmts[4096]; /* private: compiled stats to display */
BSDSTAT_DECL_METHODS(struct bsdstat *);
};
extern void bsdstat_init(struct bsdstat *, const char *name,
const struct fmt *stats, int nstats);
#define BSDSTAT_DEFINE_BOUNCE(_t) \
static void _t##_setfmt(struct _t *wf, const char *fmt0) \
{ wf->base.setfmt(&wf->base, fmt0); } \
static void _t##_collect_cur(struct _t *wf) \
{ wf->base.collect_cur(&wf->base); } \
static void _t##_collect_tot(struct _t *wf) \
{ wf->base.collect_tot(&wf->base); } \
static void _t##_update_tot(struct _t *wf) \
{ wf->base.update_tot(&wf->base); } \
static int _t##_get_curstat(struct _t *wf, int s, char b[], size_t bs) \
{ return wf->base.get_curstat(&wf->base, s, b, bs); } \
static int _t##_get_totstat(struct _t *wf, int s, char b[], size_t bs) \
{ return wf->base.get_totstat(&wf->base, s, b, bs); } \
static void _t##_print_header(struct _t *wf, FILE *fd) \
{ wf->base.print_header(&wf->base, fd); } \
static void _t##_print_current(struct _t *wf, FILE *fd) \
{ wf->base.print_current(&wf->base, fd); } \
static void _t##_print_total(struct _t *wf, FILE *fd) \
{ wf->base.print_total(&wf->base, fd); } \
static void _t##_print_verbose(struct _t *wf, FILE *fd) \
{ wf->base.print_verbose(&wf->base, fd); } \
static void _t##_print_fields(struct _t *wf, FILE *fd) \
{ wf->base.print_fields(&wf->base, fd); }
#define BSDSTAT_BOUNCE(_p, _t) do { \
_p->base.setfmt = _t##_setfmt; \
_p->base.collect_cur = _t##_collect_cur; \
_p->base.collect_tot = _t##_collect_tot; \
_p->base.update_tot = _t##_update_tot; \
_p->base.get_curstat = _t##_get_curstat; \
_p->base.get_totstat = _t##_get_totstat; \
_p->base.print_header = _t##_print_header; \
_p->base.print_current = _t##_print_current; \
_p->base.print_total = _t##_print_total; \
_p->base.print_verbose = _t##_print_verbose; \
_p->base.print_fields = _t##_print_fields; \
} while (0)
#endif /* _BSDSTAT_H_ */
|
