Add 'libstatfoo' from Sam Leffler.
This commit is contained in:
adrian
parent
90cc7fa1b3
commit
c116a2f64f
@ -69,6 +69,7 @@ SUBDIR= ${SUBDIR_ORDERED} \
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libblocksruntime \
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${_libbluetooth} \
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${_libbsnmp} \
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libbsdstat \
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libbz2 \
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libcalendar \
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libcam \
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12
lib/libbsdstat/Makefile
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12
lib/libbsdstat/Makefile
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@ -0,0 +1,12 @@
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# $FreeBSD$
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LIB= bsdstat
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SHLIB_MAJOR= 1
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PRIVATELIB=
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WARNS?= 3
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SRCS= bsdstat.c
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INCS= bsdstat.h
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.include <bsd.lib.mk>
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206
lib/libbsdstat/bsdstat.c
Normal file
206
lib/libbsdstat/bsdstat.c
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@ -0,0 +1,206 @@
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/*-
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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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#include <stdio.h>
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#include <string.h>
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#include "bsdstat.h"
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static void
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bsdstat_setfmt(struct bsdstat *sf, const char *fmt0)
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{
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#define N(a) (sizeof(a)/sizeof(a[0]))
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char fmt[4096];
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char *fp, *tok;
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int i, j;
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j = 0;
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strlcpy(fmt, fmt0, sizeof(fmt));
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for (fp = fmt; (tok = strsep(&fp, ", ")) != NULL;) {
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for (i = 0; i < sf->nstats; i++)
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if (strcasecmp(tok, sf->stats[i].name) == 0)
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break;
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if (i >= sf->nstats) {
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fprintf(stderr, "%s: unknown statistic name \"%s\" "
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"skipped\n", sf->name, tok);
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continue;
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}
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if (j+3 > (int) sizeof(sf->fmts)) {
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fprintf(stderr, "%s: not enough room for all stats; "
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"stopped at %s\n", sf->name, tok);
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break;
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}
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if (j != 0)
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sf->fmts[j++] = ' ';
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sf->fmts[j++] = FMTS_IS_STAT;
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sf->fmts[j++] = i & 0xff;
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sf->fmts[j++] = (i >> 8) & 0xff;
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}
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sf->fmts[j] = '\0';
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#undef N
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}
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static void
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bsdstat_collect(struct bsdstat *sf)
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{
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fprintf(stderr, "%s: don't know how to collect data\n", sf->name);
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}
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static void
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bsdstat_update_tot(struct bsdstat *sf)
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{
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fprintf(stderr, "%s: don't know how to update total data\n", sf->name);
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}
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static int
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bsdstat_get(struct bsdstat *sf, int s, char b[], size_t bs)
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{
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fprintf(stderr, "%s: don't know how to get stat #%u\n", sf->name, s);
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return 0;
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}
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static void
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bsdstat_print_header(struct bsdstat *sf, FILE *fd)
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{
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const unsigned char *cp;
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int i;
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const struct fmt *f;
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for (cp = sf->fmts; *cp != '\0'; cp++) {
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if (*cp == FMTS_IS_STAT) {
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i = *(++cp);
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i |= ((int) *(++cp)) << 8;
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f = &sf->stats[i];
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fprintf(fd, "%*s", f->width, f->label);
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} else
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putc(*cp, fd);
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}
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putc('\n', fd);
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}
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static void
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bsdstat_print_current(struct bsdstat *sf, FILE *fd)
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{
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char buf[32];
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const unsigned char *cp;
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int i;
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const struct fmt *f;
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for (cp = sf->fmts; *cp != '\0'; cp++) {
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if (*cp == FMTS_IS_STAT) {
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i = *(++cp);
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i |= ((int) *(++cp)) << 8;
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f = &sf->stats[i];
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if (sf->get_curstat(sf, i, buf, sizeof(buf)))
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fprintf(fd, "%*s", f->width, buf);
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} else
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putc(*cp, fd);
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}
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putc('\n', fd);
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}
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static void
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bsdstat_print_total(struct bsdstat *sf, FILE *fd)
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{
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char buf[32];
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const unsigned char *cp;
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const struct fmt *f;
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int i;
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for (cp = sf->fmts; *cp != '\0'; cp++) {
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if (*cp == FMTS_IS_STAT) {
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i = *(++cp);
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i |= ((int) *(++cp)) << 8;
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f = &sf->stats[i];
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if (sf->get_totstat(sf, i, buf, sizeof(buf)))
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fprintf(fd, "%*s", f->width, buf);
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} else
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putc(*cp, fd);
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}
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putc('\n', fd);
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}
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static void
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bsdstat_print_verbose(struct bsdstat *sf, FILE *fd)
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{
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const struct fmt *f;
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char s[32];
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int i, width;
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width = 0;
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for (i = 0; i < sf->nstats; i++) {
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f = &sf->stats[i];
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if (f->width > width)
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width = f->width;
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}
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for (i = 0; i < sf->nstats; i++) {
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f = &sf->stats[i];
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if (sf->get_totstat(sf, i, s, sizeof(s)) && strcmp(s, "0"))
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fprintf(fd, "%-*s %s\n", width, s, f->desc);
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}
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}
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static void
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bsdstat_print_fields(struct bsdstat *sf, FILE *fd)
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{
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int i, w, width;
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width = 0;
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for (i = 0; i < sf->nstats; i++) {
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w = strlen(sf->stats[i].name);
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if (w > width)
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width = w;
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}
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for (i = 0; i < sf->nstats; i++) {
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const struct fmt *f = &sf->stats[i];
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if (f->width != 0)
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fprintf(fd, "%-*s %s\n", width, f->name, f->desc);
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}
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}
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void
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bsdstat_init(struct bsdstat *sf, const char *name, const struct fmt *stats, int nstats)
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{
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sf->name = name;
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sf->stats = stats;
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sf->nstats = nstats;
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sf->setfmt = bsdstat_setfmt;
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sf->collect_cur = bsdstat_collect;
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sf->collect_tot = bsdstat_collect;
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sf->update_tot = bsdstat_update_tot;
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sf->get_curstat = bsdstat_get;
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sf->get_totstat = bsdstat_get;
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sf->print_header = bsdstat_print_header;
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sf->print_current = bsdstat_print_current;
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sf->print_total = bsdstat_print_total;
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sf->print_verbose = bsdstat_print_verbose;
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sf->print_fields = bsdstat_print_fields;
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}
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128
lib/libbsdstat/bsdstat.h
Normal file
128
lib/libbsdstat/bsdstat.h
Normal file
@ -0,0 +1,128 @@
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/*-
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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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