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