svn commit: r262821 - in head/lib: . libbsdstat
Adrian Chadd
adrian at FreeBSD.org
Thu Mar 6 04:06:38 UTC 2014
Author: adrian
Date: Thu Mar 6 04:06:36 2014
New Revision: 262821
URL: http://svnweb.freebsd.org/changeset/base/262821
Log:
Add 'libstatfoo' from Sam Leffler.
Added:
head/lib/libbsdstat/
head/lib/libbsdstat/Makefile (contents, props changed)
head/lib/libbsdstat/bsdstat.c (contents, props changed)
head/lib/libbsdstat/bsdstat.h (contents, props changed)
Modified:
head/lib/Makefile
Modified: head/lib/Makefile
==============================================================================
--- head/lib/Makefile Thu Mar 6 02:48:54 2014 (r262820)
+++ head/lib/Makefile Thu Mar 6 04:06:36 2014 (r262821)
@@ -69,6 +69,7 @@ SUBDIR= ${SUBDIR_ORDERED} \
libblocksruntime \
${_libbluetooth} \
${_libbsnmp} \
+ libbsdstat \
libbz2 \
libcalendar \
libcam \
Added: head/lib/libbsdstat/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/lib/libbsdstat/Makefile Thu Mar 6 04:06:36 2014 (r262821)
@@ -0,0 +1,12 @@
+# $FreeBSD$
+
+LIB= bsdstat
+SHLIB_MAJOR= 1
+PRIVATELIB=
+
+WARNS?= 3
+
+SRCS= bsdstat.c
+INCS= bsdstat.h
+
+.include <bsd.lib.mk>
Added: head/lib/libbsdstat/bsdstat.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/lib/libbsdstat/bsdstat.c Thu Mar 6 04:06:36 2014 (r262821)
@@ -0,0 +1,206 @@
+/*-
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "bsdstat.h"
+
+static void
+bsdstat_setfmt(struct bsdstat *sf, const char *fmt0)
+{
+#define N(a) (sizeof(a)/sizeof(a[0]))
+ char fmt[4096];
+ char *fp, *tok;
+ int i, j;
+
+ j = 0;
+ strlcpy(fmt, fmt0, sizeof(fmt));
+ for (fp = fmt; (tok = strsep(&fp, ", ")) != NULL;) {
+ for (i = 0; i < sf->nstats; i++)
+ if (strcasecmp(tok, sf->stats[i].name) == 0)
+ break;
+ if (i >= sf->nstats) {
+ fprintf(stderr, "%s: unknown statistic name \"%s\" "
+ "skipped\n", sf->name, tok);
+ continue;
+ }
+ if (j+3 > (int) sizeof(sf->fmts)) {
+ fprintf(stderr, "%s: not enough room for all stats; "
+ "stopped at %s\n", sf->name, tok);
+ break;
+ }
+ if (j != 0)
+ sf->fmts[j++] = ' ';
+ sf->fmts[j++] = FMTS_IS_STAT;
+ sf->fmts[j++] = i & 0xff;
+ sf->fmts[j++] = (i >> 8) & 0xff;
+ }
+ sf->fmts[j] = '\0';
+#undef N
+}
+
+static void
+bsdstat_collect(struct bsdstat *sf)
+{
+ fprintf(stderr, "%s: don't know how to collect data\n", sf->name);
+}
+
+static void
+bsdstat_update_tot(struct bsdstat *sf)
+{
+ fprintf(stderr, "%s: don't know how to update total data\n", sf->name);
+}
+
+static int
+bsdstat_get(struct bsdstat *sf, int s, char b[], size_t bs)
+{
+ fprintf(stderr, "%s: don't know how to get stat #%u\n", sf->name, s);
+ return 0;
+}
+
+static void
+bsdstat_print_header(struct bsdstat *sf, FILE *fd)
+{
+ const unsigned char *cp;
+ int i;
+ const struct fmt *f;
+
+ for (cp = sf->fmts; *cp != '\0'; cp++) {
+ if (*cp == FMTS_IS_STAT) {
+ i = *(++cp);
+ i |= ((int) *(++cp)) << 8;
+ f = &sf->stats[i];
+ fprintf(fd, "%*s", f->width, f->label);
+ } else
+ putc(*cp, fd);
+ }
+ putc('\n', fd);
+}
+
+static void
+bsdstat_print_current(struct bsdstat *sf, FILE *fd)
+{
+ char buf[32];
+ const unsigned char *cp;
+ int i;
+ const struct fmt *f;
+
+ for (cp = sf->fmts; *cp != '\0'; cp++) {
+ if (*cp == FMTS_IS_STAT) {
+ i = *(++cp);
+ i |= ((int) *(++cp)) << 8;
+ f = &sf->stats[i];
+ if (sf->get_curstat(sf, i, buf, sizeof(buf)))
+ fprintf(fd, "%*s", f->width, buf);
+ } else
+ putc(*cp, fd);
+ }
+ putc('\n', fd);
+}
+
+static void
+bsdstat_print_total(struct bsdstat *sf, FILE *fd)
+{
+ char buf[32];
+ const unsigned char *cp;
+ const struct fmt *f;
+ int i;
+
+ for (cp = sf->fmts; *cp != '\0'; cp++) {
+ if (*cp == FMTS_IS_STAT) {
+ i = *(++cp);
+ i |= ((int) *(++cp)) << 8;
+ f = &sf->stats[i];
+ if (sf->get_totstat(sf, i, buf, sizeof(buf)))
+ fprintf(fd, "%*s", f->width, buf);
+ } else
+ putc(*cp, fd);
+ }
+ putc('\n', fd);
+}
+
+static void
+bsdstat_print_verbose(struct bsdstat *sf, FILE *fd)
+{
+ const struct fmt *f;
+ char s[32];
+ int i, width;
+
+ width = 0;
+ for (i = 0; i < sf->nstats; i++) {
+ f = &sf->stats[i];
+ if (f->width > width)
+ width = f->width;
+ }
+ for (i = 0; i < sf->nstats; i++) {
+ f = &sf->stats[i];
+ if (sf->get_totstat(sf, i, s, sizeof(s)) && strcmp(s, "0"))
+ fprintf(fd, "%-*s %s\n", width, s, f->desc);
+ }
+}
+
+static void
+bsdstat_print_fields(struct bsdstat *sf, FILE *fd)
+{
+ int i, w, width;
+
+ width = 0;
+ for (i = 0; i < sf->nstats; i++) {
+ w = strlen(sf->stats[i].name);
+ if (w > width)
+ width = w;
+ }
+ for (i = 0; i < sf->nstats; i++) {
+ const struct fmt *f = &sf->stats[i];
+ if (f->width != 0)
+ fprintf(fd, "%-*s %s\n", width, f->name, f->desc);
+ }
+}
+
+void
+bsdstat_init(struct bsdstat *sf, const char *name, const struct fmt *stats, int nstats)
+{
+ sf->name = name;
+ sf->stats = stats;
+ sf->nstats = nstats;
+ sf->setfmt = bsdstat_setfmt;
+ sf->collect_cur = bsdstat_collect;
+ sf->collect_tot = bsdstat_collect;
+ sf->update_tot = bsdstat_update_tot;
+ sf->get_curstat = bsdstat_get;
+ sf->get_totstat = bsdstat_get;
+ sf->print_header = bsdstat_print_header;
+ sf->print_current = bsdstat_print_current;
+ sf->print_total = bsdstat_print_total;
+ sf->print_verbose = bsdstat_print_verbose;
+ sf->print_fields = bsdstat_print_fields;
+}
Added: head/lib/libbsdstat/bsdstat.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/lib/libbsdstat/bsdstat.h Thu Mar 6 04:06:36 2014 (r262821)
@@ -0,0 +1,128 @@
+/*-
+ * 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_ */
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