1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1983, 1989, 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32
33
34/*
35 * Cursed vmstat -- from Robert Elz.
36 */
37
38#include <sys/param.h>
39#include <sys/stat.h>
40#include <sys/time.h>
41#include <sys/proc.h>
42#include <sys/uio.h>
43#include <sys/namei.h>
44#include <sys/resource.h>
45#include <sys/sysctl.h>
46#include <sys/vmmeter.h>
47
48#include <vm/vm_param.h>
49
50#include <ctype.h>
51#include <err.h>
52#include <errno.h>
53#include <langinfo.h>
54#include <libutil.h>
55#include <nlist.h>
56#include <paths.h>
57#include <signal.h>
58#include <stdlib.h>
59#include <string.h>
60#include <time.h>
61#include <unistd.h>
62#include <utmpx.h>
63#include "systat.h"
64#include "extern.h"
65#include "devs.h"
66
67static struct Info {
68	long	time[CPUSTATES];
69	uint64_t v_swtch;	/* context switches */
70	uint64_t v_trap;	/* calls to trap */
71	uint64_t v_syscall;	/* calls to syscall() */
72	uint64_t v_intr;	/* device interrupts */
73	uint64_t v_soft;	/* software interrupts */
74	/*
75	 * Virtual memory activity.
76	 */
77	uint64_t v_vm_faults;	/* number of address memory faults */
78	uint64_t v_io_faults;	/* page faults requiring I/O */
79	uint64_t v_cow_faults;	/* number of copy-on-writes */
80	uint64_t v_zfod;	/* pages zero filled on demand */
81	uint64_t v_ozfod;	/* optimized zero fill pages */
82	uint64_t v_swapin;	/* swap pager pageins */
83	uint64_t v_swapout;	/* swap pager pageouts */
84	uint64_t v_swappgsin;	/* swap pager pages paged in */
85	uint64_t v_swappgsout;	/* swap pager pages paged out */
86	uint64_t v_vnodein;	/* vnode pager pageins */
87	uint64_t v_vnodeout;	/* vnode pager pageouts */
88	uint64_t v_vnodepgsin;	/* vnode_pager pages paged in */
89	uint64_t v_vnodepgsout;	/* vnode pager pages paged out */
90	uint64_t v_intrans;	/* intransit blocking page faults */
91	uint64_t v_reactivated;	/* number of pages reactivated by pagedaemon */
92	uint64_t v_pdwakeups;	/* number of times daemon has awaken from sleep */
93	uint64_t v_pdpages;	/* number of pages analyzed by daemon */
94
95	uint64_t v_dfree;	/* pages freed by daemon */
96	uint64_t v_pfree;	/* pages freed by exiting processes */
97	uint64_t v_tfree;	/* total pages freed */
98	/*
99	 * Distribution of page usages.
100	 */
101	u_int v_free_count;	/* number of pages free */
102	u_int v_wire_count;	/* number of pages wired down */
103	u_int v_active_count;	/* number of pages active */
104	u_int v_inactive_count;	/* number of pages inactive */
105	u_int v_laundry_count;	/* number of pages in laundry queue */
106	u_long v_kmem_map_size;	/* Current kmem allocation size */
107	struct	vmtotal Total;
108	struct	nchstats nchstats;
109	long	nchcount;
110	long	*intrcnt;
111	long	bufspace;
112	u_long	maxvnodes;
113	long	numvnodes;
114	long	freevnodes;
115	int	numdirtybuffers;
116} s, s1, s2, z;
117static u_long kmem_size;
118static u_int v_page_count;
119
120
121#define	total s.Total
122#define	nchtotal s.nchstats
123#define	oldnchtotal s1.nchstats
124
125static	enum state { BOOT, TIME, RUN } state = TIME;
126enum divisor { IEC = 0, SI = HN_DIVISOR_1000 };
127
128static void allocinfo(struct Info *);
129static void copyinfo(struct Info *, struct Info *);
130static float cputime(int);
131static void do_putuint64(uint64_t, int, int, int, int);
132static void getinfo(struct Info *);
133static int ucount(void);
134
135static	int ncpu;
136static	char buf[26];
137static	time_t t;
138static	double etime;
139static	int nintr;
140static	long *intrloc;
141static	char **intrname;
142static	int nextintsrow;
143
144WINDOW *
145openkre(void)
146{
147
148	return (stdscr);
149}
150
151void
152closekre(WINDOW *w)
153{
154
155	if (w == NULL)
156		return;
157	wclear(w);
158	wrefresh(w);
159}
160
161/*
162 * These constants define where the major pieces are laid out
163 */
164#define STATROW		 0	/* uses 1 row and 67 cols */
165#define STATCOL		 0
166#define MEMROW		 2	/* uses 4 rows and 45 cols */
167#define MEMCOL		 0
168#define PAGEROW		 1	/* uses 4 rows and 30 cols */
169#define PAGECOL		47
170#define INTSROW		 5	/* uses all rows to bottom and 16 cols */
171#define INTSCOL		64
172#define PROCSROW	 6	/* uses 3 rows and 20 cols */
173#define PROCSCOL	 0
174#define GENSTATROW	 7	/* uses 2 rows and 29 cols */
175#define GENSTATCOL	22
176#define VMSTATROW	 5	/* uses 17 rows and 12-14 cols */
177#define VMSTATCOL	52
178#define GRAPHROW	10	/* uses 3 rows and 49-51 cols */
179#define GRAPHCOL	 0
180#define VNSTATROW	13	/* uses 4 rows and 13 columns */
181#define VNSTATCOL	35
182#define NAMEIROW	14	/* uses 3 rows and 32 cols */
183#define NAMEICOL	 0
184#define DISKROW		18	/* uses 5 rows and 47 cols (for 7 drives) */
185#define DISKCOL		 0
186
187#define	DRIVESPACE	 7	/* max # for space */
188
189#define	MAXDRIVES	DRIVESPACE	 /* max # to display */
190
191int
192initkre(void)
193{
194	char *cp, *cp1, *cp2, *intrnamebuf, *nextcp;
195	int i;
196	size_t sz;
197
198	if (dsinit(MAXDRIVES) != 1)
199		return(0);
200
201	if (nintr == 0) {
202		if (sysctlbyname("hw.intrcnt", NULL, &sz, NULL, 0) == -1) {
203			error("sysctl(hw.intrcnt...) failed: %s",
204			      strerror(errno));
205			return (0);
206		}
207		nintr = sz / sizeof(u_long);
208		intrloc = calloc(nintr, sizeof (long));
209		intrname = calloc(nintr, sizeof (char *));
210		intrnamebuf = sysctl_dynread("hw.intrnames", NULL);
211		if (intrnamebuf == NULL || intrname == NULL ||
212		    intrloc == NULL) {
213			error("Out of memory");
214			if (intrnamebuf)
215				free(intrnamebuf);
216			if (intrname)
217				free(intrname);
218			if (intrloc)
219				free(intrloc);
220			nintr = 0;
221			return(0);
222		}
223		for (cp = intrnamebuf, i = 0; i < nintr; i++) {
224			nextcp = cp + strlen(cp) + 1;
225
226			/* Discard trailing spaces. */
227			for (cp1 = nextcp - 1; cp1 > cp && *(cp1 - 1) == ' '; )
228				*--cp1 = '\0';
229
230			/* Convert "irqN: name" to "name irqN". */
231			if (strncmp(cp, "irq", 3) == 0) {
232				cp1 = cp + 3;
233				while (isdigit((u_char)*cp1))
234					cp1++;
235				if (cp1 != cp && *cp1 == ':' &&
236				    *(cp1 + 1) == ' ') {
237					sz = strlen(cp);
238					*cp1 = '\0';
239					cp1 = cp1 + 2;
240					cp2 = strdup(cp);
241					bcopy(cp1, cp, sz - (cp1 - cp) + 1);
242					if (sz <= 10 + 4) {
243						strcat(cp, " ");
244						strcat(cp, cp2 + 3);
245					}
246					free(cp2);
247				}
248			}
249
250			/*
251			 * Convert "name irqN" to "name N" if the former is
252			 * longer than the field width.
253			 */
254			if ((cp1 = strstr(cp, "irq")) != NULL &&
255			    strlen(cp) > 10)
256				bcopy(cp1 + 3, cp1, strlen(cp1 + 3) + 1);
257
258			intrname[i] = cp;
259			cp = nextcp;
260		}
261		nextintsrow = INTSROW + 2;
262		allocinfo(&s);
263		allocinfo(&s1);
264		allocinfo(&s2);
265		allocinfo(&z);
266	}
267	GETSYSCTL("vm.kmem_size", kmem_size);
268	GETSYSCTL("vm.stats.vm.v_page_count", v_page_count);
269	getinfo(&s2);
270	copyinfo(&s2, &s1);
271	return(1);
272}
273
274void
275fetchkre(void)
276{
277	time_t now;
278	struct tm *tp;
279	static int d_first = -1;
280
281	if (d_first < 0)
282		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
283
284	time(&now);
285	tp = localtime(&now);
286	(void) strftime(buf, sizeof(buf),
287			d_first ? "%e %b %T" : "%b %e %T", tp);
288	getinfo(&s);
289}
290
291void
292labelkre(void)
293{
294	int i;
295
296	clear();
297	mvprintw(STATROW, STATCOL + 6, "users    Load");
298	mvprintw(STATROW + 1, STATCOL + 3, "Mem usage:    %%Phy   %%Kmem");
299	mvprintw(MEMROW, MEMCOL, "Mem:      REAL           VIRTUAL");
300	mvprintw(MEMROW + 1, MEMCOL, "       Tot   Share     Tot    Share");
301	mvprintw(MEMROW + 2, MEMCOL, "Act");
302	mvprintw(MEMROW + 3, MEMCOL, "All");
303
304	mvprintw(MEMROW + 1, MEMCOL + 40, "Free");
305
306	mvprintw(PAGEROW, PAGECOL,     "         VN PAGER   SWAP PAGER");
307	mvprintw(PAGEROW + 1, PAGECOL, "         in   out     in   out");
308	mvprintw(PAGEROW + 2, PAGECOL, "count");
309	mvprintw(PAGEROW + 3, PAGECOL, "pages");
310
311	mvprintw(INTSROW, INTSCOL + 1, "Interrupts");
312	mvprintw(INTSROW + 1, INTSCOL + 6, "total");
313
314	mvprintw(VMSTATROW, VMSTATCOL + 6, "ioflt");
315	mvprintw(VMSTATROW + 1, VMSTATCOL + 6, "cow");
316	mvprintw(VMSTATROW + 2, VMSTATCOL + 6, "zfod");
317	mvprintw(VMSTATROW + 3, VMSTATCOL + 6, "ozfod");
318	mvprintw(VMSTATROW + 4, VMSTATCOL + 6 - 1, "%%ozfod");
319	mvprintw(VMSTATROW + 5, VMSTATCOL + 6, "daefr");
320	mvprintw(VMSTATROW + 6, VMSTATCOL + 6, "prcfr");
321	mvprintw(VMSTATROW + 7, VMSTATCOL + 6, "totfr");
322	mvprintw(VMSTATROW + 8, VMSTATCOL + 6, "react");
323	mvprintw(VMSTATROW + 9, VMSTATCOL + 6, "pdwak");
324	mvprintw(VMSTATROW + 10, VMSTATCOL + 6, "pdpgs");
325	mvprintw(VMSTATROW + 11, VMSTATCOL + 6, "intrn");
326	mvprintw(VMSTATROW + 12, VMSTATCOL + 6, "wire");
327	mvprintw(VMSTATROW + 13, VMSTATCOL + 6, "act");
328	mvprintw(VMSTATROW + 14, VMSTATCOL + 6, "inact");
329	mvprintw(VMSTATROW + 15, VMSTATCOL + 6, "laund");
330	mvprintw(VMSTATROW + 16, VMSTATCOL + 6, "free");
331	if (LINES - 1 > VMSTATROW + 17)
332		mvprintw(VMSTATROW + 17, VMSTATCOL + 6, "buf");
333
334	mvprintw(GENSTATROW, GENSTATCOL, " Csw  Trp  Sys  Int  Sof  Flt");
335
336	mvprintw(GRAPHROW, GRAPHCOL,
337		"  . %%Sys    . %%Intr   . %%User   . %%Nice   . %%Idle");
338	mvprintw(PROCSROW, PROCSCOL, "Proc:");
339	mvprintw(PROCSROW + 1, PROCSCOL, "  r   p   d    s   w");
340	mvprintw(GRAPHROW + 1, GRAPHCOL,
341		"|    |    |    |    |    |    |    |    |    |    |");
342
343	mvprintw(VNSTATROW, VNSTATCOL + 8, "dtbuf");
344	mvprintw(VNSTATROW + 1, VNSTATCOL + 8, "maxvn");
345	mvprintw(VNSTATROW + 2, VNSTATCOL + 8, "numvn");
346	mvprintw(VNSTATROW + 3, VNSTATCOL + 8, "frevn");
347
348	mvprintw(NAMEIROW, NAMEICOL, "Namei     Name-cache   Dir-cache");
349	mvprintw(NAMEIROW + 1, NAMEICOL,
350		"   Calls    hits   %%    hits   %%");
351	dslabel(MAXDRIVES, DISKCOL, DISKROW);
352
353	for (i = 0; i < nintr; i++) {
354		if (intrloc[i] == 0)
355			continue;
356		mvprintw(intrloc[i], INTSCOL + 6, "%-10.10s", intrname[i]);
357	}
358}
359
360#define X(fld)	{t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;}
361#define Q(fld)	{t=cur_dev.fld[i]; cur_dev.fld[i]-=last_dev.fld[i]; if(state==TIME) last_dev.fld[i]=t;}
362#define Y(fld)	{t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;}
363#define Z(fld)	{t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \
364	if(state == TIME) s1.nchstats.fld = t;}
365#define PUTRATE(fld, l, c, w) \
366do { \
367	Y(fld); \
368	sysputwuint64(wnd, l, c, w, (s.fld/etime + 0.5), 0); \
369} while (0)
370#define MAXFAIL 5
371
372static	char cpuchar[CPUSTATES] = { '=' , '+', '>', '-', ' ' };
373static	char cpuorder[CPUSTATES] = { CP_SYS, CP_INTR, CP_USER, CP_NICE,
374				     CP_IDLE };
375
376void
377showkre(void)
378{
379	float f1, f2;
380	int psiz, inttotal;
381	int i, l, lc;
382	static int failcnt = 0;
383
384	etime = 0;
385	for(i = 0; i < CPUSTATES; i++) {
386		X(time);
387		Q(cp_time);
388		etime += s.time[i];
389	}
390	if (etime < 5.0) {	/* < 5 ticks - ignore this trash */
391		if (failcnt++ >= MAXFAIL) {
392			clear();
393			mvprintw(2, 10, "The alternate system clock has died!");
394			mvprintw(3, 10, "Reverting to ``pigs'' display.");
395			move(CMDLINE, 0);
396			refresh();
397			failcnt = 0;
398			sleep(5);
399			command("pigs");
400		}
401		return;
402	}
403	failcnt = 0;
404	etime /= hertz;
405	etime /= ncpu;
406	inttotal = 0;
407	for (i = 0; i < nintr; i++) {
408		if (s.intrcnt[i] == 0)
409			continue;
410		X(intrcnt);
411		l = (int)((float)s.intrcnt[i]/etime + 0.5);
412		inttotal += l;
413		if (intrloc[i] == 0) {
414			if (nextintsrow == LINES)
415				continue;
416			intrloc[i] = nextintsrow++;
417			mvprintw(intrloc[i], INTSCOL + 6, "%-10.10s",
418				intrname[i]);
419		}
420		putint(l, intrloc[i], INTSCOL, 5);
421	}
422	putint(inttotal, INTSROW + 1, INTSCOL, 5);
423	Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss);
424	Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits);
425	s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits +
426	    nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits;
427	if (state == TIME)
428		s1.nchcount = s.nchcount;
429
430	psiz = 0;
431	f2 = 0.0;
432	for (lc = 0; lc < CPUSTATES; lc++) {
433		i = cpuorder[lc];
434		f1 = cputime(i);
435		f2 += f1;
436		l = (int) ((f2 + 1.0) / 2.0) - psiz;
437		putfloat(f1, GRAPHROW, GRAPHCOL + 10 * lc, 4, 1, 0);
438		move(GRAPHROW + 2, psiz);
439		psiz += l;
440		while (l-- > 0)
441			addch(cpuchar[lc]);
442	}
443
444	putint(ucount(), STATROW, STATCOL, 5);
445	putfloat(avenrun[0], STATROW, STATCOL + 20, 5, 2, 0);
446	putfloat(avenrun[1], STATROW, STATCOL + 26, 5, 2, 0);
447	putfloat(avenrun[2], STATROW, STATCOL + 32, 5, 2, 0);
448	mvaddstr(STATROW, STATCOL + 55, buf);
449	putfloat(100.0 * (v_page_count - total.t_free) / v_page_count,
450	   STATROW + 1, STATCOL + 15, 2, 0, 1);
451	putfloat(100.0 * s.v_kmem_map_size / kmem_size,
452	   STATROW + 1, STATCOL + 22, 2, 0, 1);
453
454	sysputpage(wnd, MEMROW + 2, MEMCOL + 4, 6, total.t_arm, 0);
455	sysputpage(wnd, MEMROW + 2, MEMCOL + 12, 6, total.t_armshr, 0);
456	sysputpage(wnd, MEMROW + 2, MEMCOL + 20, 6, total.t_avm, 0);
457	sysputpage(wnd, MEMROW + 2, MEMCOL + 29, 6, total.t_avmshr, 0);
458	sysputpage(wnd, MEMROW + 3, MEMCOL + 4, 6, total.t_rm, 0);
459	sysputpage(wnd, MEMROW + 3, MEMCOL + 12, 6, total.t_rmshr, 0);
460	sysputpage(wnd, MEMROW + 3, MEMCOL + 20, 6, total.t_vm, 0);
461	sysputpage(wnd, MEMROW + 3, MEMCOL + 29, 6, total.t_vmshr, 0);
462	sysputpage(wnd, MEMROW + 2, MEMCOL + 38, 6, total.t_free, 0);
463	putint(total.t_rq - 1, PROCSROW + 2, PROCSCOL, 3);
464	putint(total.t_pw, PROCSROW + 2, PROCSCOL + 4, 3);
465	putint(total.t_dw, PROCSROW + 2, PROCSCOL + 8, 3);
466	putint(total.t_sl, PROCSROW + 2, PROCSCOL + 12, 4);
467	putint(total.t_sw, PROCSROW + 2, PROCSCOL + 17, 3);
468	PUTRATE(v_io_faults, VMSTATROW, VMSTATCOL, 5);
469	PUTRATE(v_cow_faults, VMSTATROW + 1, VMSTATCOL, 5);
470	PUTRATE(v_zfod, VMSTATROW + 2, VMSTATCOL, 5);
471	PUTRATE(v_ozfod, VMSTATROW + 3, VMSTATCOL, 5);
472	putint(s.v_zfod != 0 ? (int)(s.v_ozfod * 100.0 / s.v_zfod) : 0,
473	    VMSTATROW + 4, VMSTATCOL, 5);
474	PUTRATE(v_dfree, VMSTATROW + 5, VMSTATCOL, 5);
475	PUTRATE(v_pfree, VMSTATROW + 6, VMSTATCOL, 5);
476	PUTRATE(v_tfree, VMSTATROW + 7, VMSTATCOL, 5);
477	PUTRATE(v_reactivated, VMSTATROW + 8, VMSTATCOL, 5);
478	PUTRATE(v_pdwakeups, VMSTATROW + 9, VMSTATCOL, 5);
479	PUTRATE(v_pdpages, VMSTATROW + 10, VMSTATCOL, 5);
480	PUTRATE(v_intrans, VMSTATROW + 11, VMSTATCOL, 5);
481	sysputpage(wnd, VMSTATROW + 12, VMSTATCOL, 5, s.v_wire_count, 0);
482	sysputpage(wnd, VMSTATROW + 13, VMSTATCOL, 5, s.v_active_count, 0);
483	sysputpage(wnd, VMSTATROW + 14, VMSTATCOL, 5, s.v_inactive_count, 0);
484	sysputpage(wnd, VMSTATROW + 15, VMSTATCOL, 5, s.v_laundry_count, 0);
485	sysputpage(wnd, VMSTATROW + 16, VMSTATCOL, 5, s.v_free_count, 0);
486	if (LINES - 1 > VMSTATROW + 17)
487		sysputuint64(wnd, VMSTATROW + 17, VMSTATCOL, 5, s.bufspace, 0);
488	PUTRATE(v_vnodein, PAGEROW + 2, PAGECOL + 6, 5);
489	PUTRATE(v_vnodeout, PAGEROW + 2, PAGECOL + 12, 5);
490	PUTRATE(v_swapin, PAGEROW + 2, PAGECOL + 19, 5);
491	PUTRATE(v_swapout, PAGEROW + 2, PAGECOL + 25, 5);
492	PUTRATE(v_vnodepgsin, PAGEROW + 3, PAGECOL + 6, 5);
493	PUTRATE(v_vnodepgsout, PAGEROW + 3, PAGECOL + 12, 5);
494	PUTRATE(v_swappgsin, PAGEROW + 3, PAGECOL + 19, 5);
495	PUTRATE(v_swappgsout, PAGEROW + 3, PAGECOL + 25, 5);
496	PUTRATE(v_swtch, GENSTATROW + 1, GENSTATCOL, 4);
497	PUTRATE(v_trap, GENSTATROW + 1, GENSTATCOL + 5, 4);
498	PUTRATE(v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 4);
499	PUTRATE(v_intr, GENSTATROW + 1, GENSTATCOL + 15, 4);
500	PUTRATE(v_soft, GENSTATROW + 1, GENSTATCOL + 20, 4);
501	PUTRATE(v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 4);
502	switch(state) {
503	case TIME:
504		dsshow(MAXDRIVES, DISKCOL, DISKROW, &cur_dev, &last_dev);
505		break;
506	case RUN:
507		dsshow(MAXDRIVES, DISKCOL, DISKROW, &cur_dev, &run_dev);
508		break;
509	case BOOT:
510		dsshow(MAXDRIVES, DISKCOL, DISKROW, &cur_dev, NULL);
511		break;
512	}
513	putint(s.numdirtybuffers, VNSTATROW, VNSTATCOL, 7);
514	putint(s.maxvnodes, VNSTATROW + 1, VNSTATCOL, 7);
515	putint(s.numvnodes, VNSTATROW + 2, VNSTATCOL, 7);
516	putint(s.freevnodes, VNSTATROW + 3, VNSTATCOL, 7);
517	putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 8);
518	putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits),
519	   NAMEIROW + 2, NAMEICOL + 9, 7);
520#define nz(x)	((x) ? (x) : 1)
521	putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) *
522	   100.0 / nz(s.nchcount),
523	   NAMEIROW + 2, NAMEICOL + 17, 3, 0, 1);
524	putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 21, 7);
525	putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount),
526	   NAMEIROW + 2, NAMEICOL + 29, 3, 0, 1);
527#undef nz
528}
529
530int
531cmdkre(const char *cmd, const char *args)
532{
533	int retval;
534
535	if (prefix(cmd, "run")) {
536		retval = 1;
537		copyinfo(&s2, &s1);
538		switch (devstat_getdevs(NULL, &run_dev)) {
539		case -1:
540			errx(1, "%s", devstat_errbuf);
541			break;
542		case 1:
543			num_devices = run_dev.dinfo->numdevs;
544			generation = run_dev.dinfo->generation;
545			retval = dscmd("refresh", NULL, MAXDRIVES, &cur_dev);
546			if (retval == 2)
547				labelkre();
548			break;
549		default:
550			break;
551		}
552		state = RUN;
553		return (retval);
554	}
555	if (prefix(cmd, "boot")) {
556		state = BOOT;
557		copyinfo(&z, &s1);
558		return (1);
559	}
560	if (prefix(cmd, "time")) {
561		state = TIME;
562		return (1);
563	}
564	if (prefix(cmd, "zero")) {
565		retval = 1;
566		if (state == RUN) {
567			getinfo(&s1);
568			switch (devstat_getdevs(NULL, &run_dev)) {
569			case -1:
570				errx(1, "%s", devstat_errbuf);
571				break;
572			case 1:
573				num_devices = run_dev.dinfo->numdevs;
574				generation = run_dev.dinfo->generation;
575				retval = dscmd("refresh",NULL, MAXDRIVES, &cur_dev);
576				if (retval == 2)
577					labelkre();
578				break;
579			default:
580				break;
581			}
582		}
583		return (retval);
584	}
585	retval = dscmd(cmd, args, MAXDRIVES, &cur_dev);
586
587	if (retval == 2)
588		labelkre();
589
590	return(retval);
591}
592
593/* calculate number of users on the system */
594static int
595ucount(void)
596{
597	int nusers = 0;
598	struct utmpx *ut;
599
600	setutxent();
601	while ((ut = getutxent()) != NULL)
602		if (ut->ut_type == USER_PROCESS)
603			nusers++;
604	endutxent();
605
606	return (nusers);
607}
608
609static float
610cputime(int indx)
611{
612	double lt;
613	int i;
614
615	lt = 0;
616	for (i = 0; i < CPUSTATES; i++)
617		lt += s.time[i];
618	if (lt == 0.0)
619		lt = 1.0;
620	return (s.time[indx] * 100.0 / lt);
621}
622
623void
624putint(int n, int l, int lc, int w)
625{
626
627	do_putuint64(n, l, lc, w, SI);
628}
629
630static void
631do_putuint64(uint64_t n, int l, int lc, int w, int div)
632{
633	int snr;
634	char b[128];
635	char lbuf[128];
636
637	move(l, lc);
638#ifdef DEBUG
639		while (w-- > 0)
640			addch('*');
641		return;
642#endif
643	if (n == 0) {
644		while (w-- > 0)
645			addch(' ');
646		return;
647	}
648	snr = snprintf(b, sizeof(b), "%*ju", w, (uintmax_t)n);
649	if (snr != w) {
650		humanize_number(lbuf, w, n, "", HN_AUTOSCALE,
651		    HN_NOSPACE | HN_DECIMAL | div);
652		snr = snprintf(b, sizeof(b), "%*s", w, lbuf);
653	}
654	if (snr != w) {
655		while (w-- > 0)
656			addch('*');
657		return;
658	}
659	addstr(b);
660}
661
662void
663putfloat(double f, int l, int lc, int w, int d, int nz)
664{
665	int snr;
666	char b[128];
667
668	move(l, lc);
669#ifdef DEBUG
670		while (--w >= 0)
671			addch('*');
672		return;
673#endif
674	if (nz && f == 0.0) {
675		while (--w >= 0)
676			addch(' ');
677		return;
678	}
679	snr = snprintf(b, sizeof(b), "%*.*f", w, d, f);
680	if (snr != w)
681		snr = snprintf(b, sizeof(b), "%*.0f", w, f);
682	if (snr != w)
683		snr = snprintf(b, sizeof(b), "%*.0fk", w - 1, f / 1000);
684	if (snr != w)
685		snr = snprintf(b, sizeof(b), "%*.0fM", w - 1, f / 1000000);
686	if (snr != w) {
687		while (--w >= 0)
688			addch('*');
689		return;
690	}
691	addstr(b);
692}
693
694void
695putlongdouble(long double f, int l, int lc, int w, int d, int nz)
696{
697	int snr;
698	char b[128];
699
700	move(l, lc);
701#ifdef DEBUG
702		while (--w >= 0)
703			addch('*');
704		return;
705#endif
706	if (nz && f == 0.0) {
707		while (--w >= 0)
708			addch(' ');
709		return;
710	}
711	snr = snprintf(b, sizeof(b), "%*.*Lf", w, d, f);
712	if (snr != w)
713		snr = snprintf(b, sizeof(b), "%*.0Lf", w, f);
714	if (snr != w)
715		snr = snprintf(b, sizeof(b), "%*.0Lfk", w - 1, f / 1000);
716	if (snr != w)
717		snr = snprintf(b, sizeof(b), "%*.0LfM", w - 1, f / 1000000);
718	if (snr != w) {
719		while (--w >= 0)
720			addch('*');
721		return;
722	}
723	addstr(b);
724}
725
726static void
727getinfo(struct Info *ls)
728{
729	struct devinfo *tmp_dinfo;
730	size_t size;
731	int mib[2];
732
733	GETSYSCTL("kern.cp_time", ls->time);
734	GETSYSCTL("kern.cp_time", cur_dev.cp_time);
735	GETSYSCTL("vm.stats.sys.v_swtch", ls->v_swtch);
736	GETSYSCTL("vm.stats.sys.v_trap", ls->v_trap);
737	GETSYSCTL("vm.stats.sys.v_syscall", ls->v_syscall);
738	GETSYSCTL("vm.stats.sys.v_intr", ls->v_intr);
739	GETSYSCTL("vm.stats.sys.v_soft", ls->v_soft);
740	GETSYSCTL("vm.stats.vm.v_vm_faults", ls->v_vm_faults);
741	GETSYSCTL("vm.stats.vm.v_io_faults", ls->v_io_faults);
742	GETSYSCTL("vm.stats.vm.v_cow_faults", ls->v_cow_faults);
743	GETSYSCTL("vm.stats.vm.v_zfod", ls->v_zfod);
744	GETSYSCTL("vm.stats.vm.v_ozfod", ls->v_ozfod);
745	GETSYSCTL("vm.stats.vm.v_swapin", ls->v_swapin);
746	GETSYSCTL("vm.stats.vm.v_swapout", ls->v_swapout);
747	GETSYSCTL("vm.stats.vm.v_swappgsin", ls->v_swappgsin);
748	GETSYSCTL("vm.stats.vm.v_swappgsout", ls->v_swappgsout);
749	GETSYSCTL("vm.stats.vm.v_vnodein", ls->v_vnodein);
750	GETSYSCTL("vm.stats.vm.v_vnodeout", ls->v_vnodeout);
751	GETSYSCTL("vm.stats.vm.v_vnodepgsin", ls->v_vnodepgsin);
752	GETSYSCTL("vm.stats.vm.v_vnodepgsout", ls->v_vnodepgsout);
753	GETSYSCTL("vm.stats.vm.v_intrans", ls->v_intrans);
754	GETSYSCTL("vm.stats.vm.v_reactivated", ls->v_reactivated);
755	GETSYSCTL("vm.stats.vm.v_pdwakeups", ls->v_pdwakeups);
756	GETSYSCTL("vm.stats.vm.v_pdpages", ls->v_pdpages);
757	GETSYSCTL("vm.stats.vm.v_dfree", ls->v_dfree);
758	GETSYSCTL("vm.stats.vm.v_pfree", ls->v_pfree);
759	GETSYSCTL("vm.stats.vm.v_tfree", ls->v_tfree);
760	GETSYSCTL("vm.stats.vm.v_free_count", ls->v_free_count);
761	GETSYSCTL("vm.stats.vm.v_wire_count", ls->v_wire_count);
762	GETSYSCTL("vm.stats.vm.v_active_count", ls->v_active_count);
763	GETSYSCTL("vm.stats.vm.v_inactive_count", ls->v_inactive_count);
764	GETSYSCTL("vm.stats.vm.v_laundry_count", ls->v_laundry_count);
765	GETSYSCTL("vfs.bufspace", ls->bufspace);
766	GETSYSCTL("kern.maxvnodes", ls->maxvnodes);
767	GETSYSCTL("vfs.numvnodes", ls->numvnodes);
768	GETSYSCTL("vfs.freevnodes", ls->freevnodes);
769	GETSYSCTL("vfs.cache.nchstats", ls->nchstats);
770	GETSYSCTL("vfs.numdirtybuffers", ls->numdirtybuffers);
771	GETSYSCTL("vm.kmem_map_size", ls->v_kmem_map_size);
772	getsysctl("hw.intrcnt", ls->intrcnt, nintr * sizeof(u_long));
773
774	size = sizeof(ls->Total);
775	mib[0] = CTL_VM;
776	mib[1] = VM_TOTAL;
777	if (sysctl(mib, 2, &ls->Total, &size, NULL, 0) < 0) {
778		error("Can't get kernel info: %s\n", strerror(errno));
779		bzero(&ls->Total, sizeof(ls->Total));
780	}
781	size = sizeof(ncpu);
782	if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0 ||
783	    size != sizeof(ncpu))
784		ncpu = 1;
785
786	tmp_dinfo = last_dev.dinfo;
787	last_dev.dinfo = cur_dev.dinfo;
788	cur_dev.dinfo = tmp_dinfo;
789
790	last_dev.snap_time = cur_dev.snap_time;
791	dsgetinfo(&cur_dev);
792}
793
794static void
795allocinfo(struct Info *ls)
796{
797
798	ls->intrcnt = (long *) calloc(nintr, sizeof(long));
799	if (ls->intrcnt == NULL)
800		errx(2, "out of memory");
801}
802
803static void
804copyinfo(struct Info *from, struct Info *to)
805{
806	long *intrcnt;
807
808	/*
809	 * time, wds, seek, and xfer are malloc'd so we have to
810	 * save the pointers before the structure copy and then
811	 * copy by hand.
812	 */
813	intrcnt = to->intrcnt;
814	*to = *from;
815
816	bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int));
817}
818