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Import Lite2's src/usr.bin/systat. cmds.c is still on the vendor branch

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and this import just breaks it.
This commit is contained in:
Bruce Evans 1997-07-06 04:02:30 +00:00
parent 756ae49fe0
commit ff6c33c9e8
2 changed files with 448 additions and 0 deletions
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192
usr.bin/systat/cmds.c Normal file
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/*-
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)cmds.c 8.2 (Berkeley) 4/29/95";
#endif /* not lint */
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <ctype.h>
#include <string.h>
#include "systat.h"
#include "extern.h"
void
command(cmd)
char *cmd;
{
register struct cmdtab *p;
register char *cp;
int interval, omask;
omask = sigblock(sigmask(SIGALRM));
for (cp = cmd; *cp && !isspace(*cp); cp++)
;
if (*cp)
*cp++ = '\0';
if (*cmd == '\0')
return;
for (; *cp && isspace(*cp); cp++)
;
if (strcmp(cmd, "quit") == 0 || strcmp(cmd, "q") == 0)
die(0);
if (strcmp(cmd, "load") == 0) {
load();
goto done;
}
if (strcmp(cmd, "stop") == 0) {
alarm(0);
mvaddstr(CMDLINE, 0, "Refresh disabled.");
clrtoeol();
goto done;
}
if (strcmp(cmd, "help") == 0) {
int col, len;
move(CMDLINE, col = 0);
for (p = cmdtab; p->c_name; p++) {
len = strlen(p->c_name);
if (col + len > COLS)
break;
addstr(p->c_name); col += len;
if (col + 1 < COLS)
addch(' ');
}
clrtoeol();
goto done;
}
interval = atoi(cmd);
if (interval <= 0 &&
(strcmp(cmd, "start") == 0 || strcmp(cmd, "interval") == 0)) {
interval = *cp ? atoi(cp) : naptime;
if (interval <= 0) {
error("%d: bad interval.", interval);
goto done;
}
}
if (interval > 0) {
alarm(0);
naptime = interval;
display(0);
status();
goto done;
}
p = lookup(cmd);
if (p == (struct cmdtab *)-1) {
error("%s: Ambiguous command.", cmd);
goto done;
}
if (p) {
if (curcmd == p)
goto done;
alarm(0);
(*curcmd->c_close)(wnd);
wnd = (*p->c_open)();
if (wnd == 0) {
error("Couldn't open new display");
wnd = (*curcmd->c_open)();
if (wnd == 0) {
error("Couldn't change back to previous cmd");
exit(1);
}
p = curcmd;
}
if ((p->c_flags & CF_INIT) == 0) {
if ((*p->c_init)())
p->c_flags |= CF_INIT;
else
goto done;
}
curcmd = p;
labels();
display(0);
status();
goto done;
}
if (curcmd->c_cmd == 0 || !(*curcmd->c_cmd)(cmd, cp))
error("%s: Unknown command.", cmd);
done:
sigsetmask(omask);
}
struct cmdtab *
lookup(name)
register char *name;
{
register char *p, *q;
register struct cmdtab *c, *found;
register int nmatches, longest;
longest = 0;
nmatches = 0;
found = (struct cmdtab *) 0;
for (c = cmdtab; p = c->c_name; c++) {
for (q = name; *q == *p++; q++)
if (*q == 0) /* exact match? */
return (c);
if (!*q) { /* the name was a prefix */
if (q - name > longest) {
longest = q - name;
nmatches = 1;
found = c;
} else if (q - name == longest)
nmatches++;
}
}
if (nmatches != 1)
return ((struct cmdtab *)-1);
return (found);
}
void
status()
{
error("Showing %s, refresh every %d seconds.",
curcmd->c_name, naptime);
}
int
prefix(s1, s2)
register char *s1, *s2;
{
while (*s1 == *s2) {
if (*s1 == '\0')
return (1);
s1++, s2++;
}
return (*s1 == '\0');
}

256
usr.bin/systat/swap.c Normal file
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/*-
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)swap.c 8.3 (Berkeley) 4/29/95";
#endif /* not lint */
/*
* swapinfo - based on a program of the same name by Kevin Lahey
*/
#include <sys/param.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/map.h>
#include <sys/stat.h>
#include <kvm.h>
#include <nlist.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "systat.h"
#include "extern.h"
extern char *getbsize __P((int *headerlenp, long *blocksizep));
void showspace __P((char *header, int hlen, long blocksize));
kvm_t *kd;
struct nlist syms[] = {
{ "_swapmap" }, /* list of free swap areas */
#define VM_SWAPMAP 0
{ "_nswapmap" },/* size of the swap map */
#define VM_NSWAPMAP 1
{ "_swdevt" }, /* list of swap devices and sizes */
#define VM_SWDEVT 2
{ "_nswap" }, /* size of largest swap device */
#define VM_NSWAP 3
{ "_nswdev" }, /* number of swap devices */
#define VM_NSWDEV 4
{ "_dmmax" }, /* maximum size of a swap block */
#define VM_DMMAX 5
0
};
static int nswap, nswdev, dmmax, nswapmap;
static struct swdevt *sw;
static long *perdev, blocksize;
static struct map *swapmap, *kswapmap;
static struct mapent *mp;
static int nfree, hlen;
#define SVAR(var) __STRING(var) /* to force expansion */
#define KGET(idx, var) \
KGET1(idx, &var, sizeof(var), SVAR(var))
#define KGET1(idx, p, s, msg) \
KGET2(syms[idx].n_value, p, s, msg)
#define KGET2(addr, p, s, msg) \
if (kvm_read(kd, addr, p, s) != s) { \
error("cannot read %s: %s", msg, kvm_geterr(kd)); \
return (0); \
}
WINDOW *
openswap()
{
return (subwin(stdscr, LINES-5-1, 0, 5, 0));
}
void
closeswap(w)
WINDOW *w;
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
delwin(w);
}
initswap()
{
int i;
char msgbuf[BUFSIZ];
static int once = 0;
if (once)
return (1);
if (kvm_nlist(kd, syms)) {
strcpy(msgbuf, "systat: swap: cannot find");
for (i = 0; syms[i].n_name != NULL; i++) {
if (syms[i].n_value == 0) {
strcat(msgbuf, " ");
strcat(msgbuf, syms[i].n_name);
}
}
error(msgbuf);
return (0);
}
KGET(VM_NSWAP, nswap);
KGET(VM_NSWDEV, nswdev);
KGET(VM_DMMAX, dmmax);
KGET(VM_NSWAPMAP, nswapmap);
KGET(VM_SWAPMAP, kswapmap); /* kernel `swapmap' is a pointer */
if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
(perdev = malloc(nswdev * sizeof(*perdev))) == NULL ||
(mp = malloc(nswapmap * sizeof(*mp))) == NULL) {
error("swap malloc");
return (0);
}
KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt");
once = 1;
return (1);
}
void
fetchswap()
{
int s, e, i;
s = nswapmap * sizeof(*mp);
if (kvm_read(kd, (long)kswapmap, mp, s) != s)
error("cannot read swapmap: %s", kvm_geterr(kd));
/* first entry in map is `struct map'; rest are mapent's */
swapmap = (struct map *)mp;
if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap)
error("panic: swap: nswapmap goof");
/*
* Count up swap space.
*/
nfree = 0;
bzero(perdev, nswdev * sizeof(*perdev));
for (mp++; mp->m_addr != 0; mp++) {
s = mp->m_addr; /* start of swap region */
e = mp->m_addr + mp->m_size; /* end of region */
nfree += mp->m_size;
/*
* Swap space is split up among the configured disks.
* The first dmmax blocks of swap space some from the
* first disk, the next dmmax blocks from the next,
* and so on. The list of free space joins adjacent
* free blocks, ignoring device boundries. If we want
* to keep track of this information per device, we'll
* just have to extract it ourselves.
*/
/* calculate first device on which this falls */
i = (s / dmmax) % nswdev;
while (s < e) { /* XXX this is inefficient */
int bound = roundup(s + 1, dmmax);
if (bound > e)
bound = e;
perdev[i] += bound - s;
if (++i >= nswdev)
i = 0;
s = bound;
}
}
}
void
labelswap()
{
char *header, *p;
int row, i;
row = 0;
wmove(wnd, row, 0); wclrtobot(wnd);
header = getbsize(&hlen, &blocksize);
mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s",
"Disk", hlen, header, "Used",
"/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100%");
for (i = 0; i < nswdev; i++) {
p = devname(sw[i].sw_dev, S_IFBLK);
mvwprintw(wnd, i + 1, 0, "%-5s", p == NULL ? "??" : p);
}
}
void
showswap()
{
int col, row, div, i, j, avail, npfree, used, xsize, xfree;
div = blocksize / 512;
avail = npfree = 0;
for (i = 0; i < nswdev; i++) {
col = 5;
mvwprintw(wnd, i + 1, col, "%*d", hlen, sw[i].sw_nblks / div);
col += hlen;
/*
* Don't report statistics for partitions which have not
* yet been activated via swapon(8).
*/
if (!sw[i].sw_freed) {
mvwprintw(wnd, i + 1, col + 8,
"0 *** not available for swapping ***");
continue;
}
xsize = sw[i].sw_nblks;
xfree = perdev[i];
used = xsize - xfree;
mvwprintw(wnd, i + 1, col, "%9d ", used / div);
for (j = (100 * used / xsize + 1) / 2; j > 0; j--)
waddch(wnd, 'X');
npfree++;
avail += xsize;
}
/*
* If only one partition has been set up via swapon(8), we don't
* need to bother with totals.
*/
if (npfree > 1) {
used = avail - nfree;
mvwprintw(wnd, i + 1, 0, "%-5s%*d%9d ",
"Total", hlen, avail / div, used / div);
for (j = (100 * used / avail + 1) / 2; j > 0; j--)
waddch(wnd, 'X');
}
}