xref: /titanic_50/usr/src/cmd/prstat/prstat.c (revision 1787f50304cd7e85910a3e14f639ac892c0d76b7)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sys/types.h>
28 #include <sys/resource.h>
29 #include <sys/loadavg.h>
30 #include <sys/time.h>
31 #include <sys/pset.h>
32 #include <sys/vm_usage.h>
33 #include <zone.h>
34 #include <libzonecfg.h>
35 
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <unistd.h>
39 #include <dirent.h>
40 #include <string.h>
41 #include <errno.h>
42 #include <poll.h>
43 #include <ctype.h>
44 #include <fcntl.h>
45 #include <limits.h>
46 #include <signal.h>
47 #include <time.h>
48 #include <project.h>
49 
50 #include <langinfo.h>
51 #include <libintl.h>
52 #include <locale.h>
53 
54 #include "prstat.h"
55 #include "prutil.h"
56 #include "prtable.h"
57 #include "prsort.h"
58 #include "prfile.h"
59 
60 /*
61  * x86 <sys/regs.h> ERR conflicts with <curses.h> ERR.  For the purposes
62  * of this file, we care about the curses.h ERR so include that last.
63  */
64 
65 #if	defined(ERR)
66 #undef	ERR
67 #endif
68 
69 #ifndef	TEXT_DOMAIN			/* should be defined by cc -D */
70 #define	TEXT_DOMAIN	"SYS_TEST"	/* use this only if it wasn't */
71 #endif
72 
73 #include <curses.h>
74 #include <term.h>
75 
76 #define	PSINFO_HEADER_PROC \
77 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP       "
78 #define	PSINFO_HEADER_PROC_LGRP \
79 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU LGRP PROCESS/NLWP  "
80 #define	PSINFO_HEADER_LWP \
81 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/LWPID      "
82 #define	PSINFO_HEADER_LWP_LGRP \
83 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU LGRP PROCESS/LWPID "
84 #define	USAGE_HEADER_PROC \
85 "   PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/NLWP  "
86 #define	USAGE_HEADER_LWP \
87 "   PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/LWPID "
88 #define	USER_HEADER_PROC \
89 " NPROC USERNAME  SWAP   RSS MEMORY      TIME  CPU                             "
90 #define	USER_HEADER_LWP \
91 "  NLWP USERNAME  SWAP   RSS MEMORY      TIME  CPU                             "
92 #define	TASK_HEADER_PROC \
93 "TASKID    NPROC  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
94 #define	TASK_HEADER_LWP \
95 "TASKID     NLWP  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
96 #define	PROJECT_HEADER_PROC \
97 "PROJID    NPROC  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
98 #define	PROJECT_HEADER_LWP \
99 "PROJID     NLWP  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
100 #define	ZONE_HEADER_PROC \
101 "ZONEID    NPROC  SWAP   RSS MEMORY      TIME  CPU ZONE                        "
102 #define	ZONE_HEADER_LWP \
103 "ZONEID     NLWP  SWAP   RSS MEMORY      TIME  CPU ZONE                        "
104 #define	PSINFO_LINE \
105 "%6d %-8s %5s %5s %-6s %3s  %3s %9s %3.3s%% %-.16s/%d"
106 #define	PSINFO_LINE_LGRP \
107 "%6d %-8s %5s %5s %-6s %3s  %3s %9s %3.3s%% %4d %-.16s/%d"
108 #define	USAGE_LINE \
109 "%6d %-8s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s "\
110 "%3.3s %-.12s/%d"
111 #define	USER_LINE \
112 "%6d %-8s %5.5s %5.5s   %3.3s%% %9s %3.3s%%"
113 #define	TASK_LINE \
114 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
115 #define	PROJECT_LINE \
116 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
117 #define	ZONE_LINE \
118 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
119 
120 #define	TOTAL_LINE \
121 "Total: %d processes, %d lwps, load averages: %3.2f, %3.2f, %3.2f"
122 
123 /* global variables */
124 
125 static char	*t_ulon;			/* termcap: start underline */
126 static char	*t_uloff;			/* termcap: end underline */
127 static char	*t_up;				/* termcap: cursor 1 line up */
128 static char	*t_eol;				/* termcap: clear end of line */
129 static char	*t_smcup;			/* termcap: cursor mvcap on */
130 static char	*t_rmcup;			/* termcap: cursor mvcap off */
131 static char	*t_home;			/* termcap: move cursor home */
132 static char	*movecur = NULL;		/* termcap: move up string */
133 static char	*empty_string = "\0";		/* termcap: empty string */
134 static uint_t	print_movecur = FALSE;		/* print movecur or not */
135 static int	is_curses_on = FALSE;		/* current curses state */
136 
137 static table_t	pid_tbl = {0, 0, NULL};		/* selected processes */
138 static table_t	cpu_tbl = {0, 0, NULL};		/* selected processors */
139 static table_t  set_tbl = {0, 0, NULL};		/* selected processor sets */
140 static table_t	prj_tbl = {0, 0, NULL};		/* selected projects */
141 static table_t	tsk_tbl = {0, 0, NULL};		/* selected tasks */
142 static table_t	lgr_tbl = {0, 0, NULL};		/* selected lgroups */
143 static zonetbl_t zone_tbl = {0, 0, NULL};	/* selected zones */
144 static nametbl_t euid_tbl = {0, 0, NULL}; 	/* selected effective users */
145 static nametbl_t ruid_tbl = {0, 0, NULL}; 	/* selected real users */
146 
147 static uint_t	total_procs;			/* total number of procs */
148 static uint_t	total_lwps;			/* total number of lwps */
149 static float	total_cpu;			/* total cpu usage */
150 static float	total_mem;			/* total memory usage */
151 
152 static list_t	lwps;				/* list of lwps/processes */
153 static list_t	users;				/* list of users */
154 static list_t	tasks;				/* list of tasks */
155 static list_t	projects;			/* list of projects */
156 static list_t	zones;				/* list of zones */
157 static list_t	lgroups;			/* list of lgroups */
158 
159 static volatile uint_t sigwinch = 0;
160 static volatile uint_t sigtstp = 0;
161 static volatile uint_t sigterm = 0;
162 
163 static long pagesize;
164 
165 /* default settings */
166 
167 static optdesc_t opts = {
168 	5,			/* interval between updates, seconds */
169 	15,			/* number of lines in top part */
170 	5,			/* number of lines in bottom part */
171 	-1,			/* number of iterations; infinitely */
172 	OPT_PSINFO | OPT_FULLSCREEN | OPT_USEHOME | OPT_TERMCAP,
173 	-1			/* sort in decreasing order */
174 };
175 
176 /*
177  * Print timestamp as decimal reprentation of time_t value (-d u was specified)
178  * or the standard date format (-d d was specified).
179  */
180 static void
181 print_timestamp(void)
182 {
183 	time_t t = time(NULL);
184 	static char *fmt = NULL;
185 
186 	/* We only need to retrieve this once per invocation */
187 	if (fmt == NULL)
188 		fmt = nl_langinfo(_DATE_FMT);
189 
190 	if (opts.o_outpmode & OPT_UDATE) {
191 		(void) printf("%ld", t);
192 	} else if (opts.o_outpmode & OPT_DDATE) {
193 		char dstr[64];
194 		int len;
195 
196 		len = strftime(dstr, sizeof (dstr), fmt, localtime(&t));
197 		if (len > 0)
198 			(void) printf("%s", dstr);
199 	}
200 	(void) putp(t_eol);
201 	(void) putchar('\n');
202 }
203 
204 static void
205 psetloadavg(long psetid, void *ptr)
206 {
207 	double psetloadavg[3];
208 	double *loadavg = ptr;
209 
210 	if (pset_getloadavg((psetid_t)psetid, psetloadavg, 3) != -1) {
211 		*loadavg++ += psetloadavg[0];
212 		*loadavg++ += psetloadavg[1];
213 		*loadavg += psetloadavg[2];
214 	}
215 }
216 
217 /*
218  * Queries the memory virtual and rss size for each member of a list.
219  * This will override the values computed by /proc aggregation.
220  */
221 static void
222 list_getsize(list_t *list)
223 {
224 	id_info_t *id;
225 	vmusage_t *results, *next;
226 	vmusage_t *match;
227 	size_t nres = 0;
228 	size_t i;
229 	uint_t flags = 0;
230 	int ret;
231 	size_t physmem = sysconf(_SC_PHYS_PAGES) * pagesize;
232 
233 	/*
234 	 * Determine what swap/rss results to calculate.  getvmusage() will
235 	 * prune results returned to non-global zones automatically, so
236 	 * there is no need to pass different flags when calling from a
237 	 * non-global zone.
238 	 *
239 	 * Currently list_getsize() is only called with a single flag.  This
240 	 * is because -Z, -J, -T, and -a are mutually exclusive.  Regardless
241 	 * of this, we handle multiple flags.
242 	 */
243 	if (opts.o_outpmode & OPT_USERS) {
244 		/*
245 		 * Gather rss for all users in all zones.  Treat the same
246 		 * uid in different zones as the same user.
247 		 */
248 		flags |= VMUSAGE_COL_RUSERS;
249 
250 	} else if (opts.o_outpmode & OPT_TASKS) {
251 		/* Gather rss for all tasks in all zones */
252 		flags |= VMUSAGE_ALL_TASKS;
253 
254 	} else if (opts.o_outpmode & OPT_PROJECTS) {
255 		/*
256 		 * Gather rss for all projects in all zones.  Treat the same
257 		 * projid in diffrent zones as the same project.
258 		 */
259 		flags |= VMUSAGE_COL_PROJECTS;
260 
261 	} else if (opts.o_outpmode & OPT_ZONES) {
262 		/* Gather rss for all zones */
263 		flags |= VMUSAGE_ALL_ZONES;
264 
265 	} else {
266 		Die(gettext(
267 		    "Cannot determine rss flags for output options %x\n"),
268 		    opts.o_outpmode);
269 	}
270 
271 	/*
272 	 * getvmusage() returns an array of result structures.  One for
273 	 * each zone, project, task, or user on the system, depending on
274 	 * flags.
275 	 *
276 	 * If getvmusage() fails, prstat will use the size already gathered
277 	 * from psinfo
278 	 */
279 	if (getvmusage(flags, opts.o_interval, NULL, &nres) != 0)
280 		return;
281 
282 	results = (vmusage_t *)Malloc(sizeof (vmusage_t) * nres);
283 	for (;;) {
284 		ret = getvmusage(flags, opts.o_interval, results, &nres);
285 		if (ret == 0)
286 			break;
287 		if (errno == EOVERFLOW) {
288 			results = (vmusage_t *)Realloc(results,
289 			    sizeof (vmusage_t) * nres);
290 			continue;
291 		}
292 		/*
293 		 * Failure for some other reason.  Prstat will use the size
294 		 * already gathered from psinfo.
295 		 */
296 		return;
297 	}
298 	for (id = list->l_head; id != NULL; id = id->id_next) {
299 
300 		match = NULL;
301 		next = results;
302 		for (i = 0; i < nres; i++, next++) {
303 			switch (flags) {
304 			case VMUSAGE_COL_RUSERS:
305 				if (next->vmu_id == id->id_uid)
306 					match = next;
307 				break;
308 			case VMUSAGE_ALL_TASKS:
309 				if (next->vmu_id == id->id_taskid)
310 					match = next;
311 				break;
312 			case VMUSAGE_COL_PROJECTS:
313 				if (next->vmu_id == id->id_projid)
314 					match = next;
315 				break;
316 			case VMUSAGE_ALL_ZONES:
317 				if (next->vmu_id == id->id_zoneid)
318 					match = next;
319 				break;
320 			default:
321 				Die(gettext(
322 				    "Unknown vmusage flags %d\n"), flags);
323 			}
324 		}
325 		if (match != NULL) {
326 			id->id_size = match->vmu_swap_all / 1024;
327 			id->id_rssize = match->vmu_rss_all / 1024;
328 			id->id_pctmem = (100.0 * (float)match->vmu_rss_all) /
329 			    (float)physmem;
330 			/* Output using data from getvmusage() */
331 			id->id_sizematch = B_TRUE;
332 		}
333 		/*
334 		 * If no match is found, prstat will use the size already
335 		 * gathered from psinfo.
336 		 */
337 	}
338 }
339 
340 /*
341  * A routine to display the contents of the list on the screen
342  */
343 static void
344 list_print(list_t *list)
345 {
346 	lwp_info_t *lwp;
347 	id_info_t *id;
348 	char usr[4], sys[4], trp[4], tfl[4];
349 	char dfl[4], lck[4], slp[4], lat[4];
350 	char vcx[4], icx[4], scl[4], sig[4];
351 	char psize[6], prssize[6], pmem[6], pcpu[6], ptime[12];
352 	char pstate[7], pnice[4], ppri[4];
353 	char pname[LOGNAME_MAX+1];
354 	char projname[PROJNAME_MAX+1];
355 	char zonename[ZONENAME_MAX+1];
356 	float cpu, mem;
357 	double loadavg[3] = {0, 0, 0};
358 	int i, lwpid;
359 
360 	if (foreach_element(&set_tbl, &loadavg, psetloadavg) == 0) {
361 		/*
362 		 * If processor sets aren't specified, we display system-wide
363 		 * load averages.
364 		 */
365 		(void) getloadavg(loadavg, 3);
366 	}
367 
368 	if (((opts.o_outpmode & OPT_UDATE) || (opts.o_outpmode & OPT_DDATE)) &&
369 	    ((list->l_type == LT_LWPS) || !(opts.o_outpmode & OPT_SPLIT)))
370 		print_timestamp();
371 	if (opts.o_outpmode & OPT_TTY)
372 		(void) putchar('\r');
373 	(void) putp(t_ulon);
374 
375 	switch (list->l_type) {
376 	case LT_PROJECTS:
377 		if (opts.o_outpmode & OPT_LWPS)
378 			(void) printf(PROJECT_HEADER_LWP);
379 		else
380 			(void) printf(PROJECT_HEADER_PROC);
381 		break;
382 	case LT_TASKS:
383 		if (opts.o_outpmode & OPT_LWPS)
384 			(void) printf(TASK_HEADER_LWP);
385 		else
386 			(void) printf(TASK_HEADER_PROC);
387 		break;
388 	case LT_ZONES:
389 		if (opts.o_outpmode & OPT_LWPS)
390 			(void) printf(ZONE_HEADER_LWP);
391 		else
392 			(void) printf(ZONE_HEADER_PROC);
393 		break;
394 	case LT_USERS:
395 		if (opts.o_outpmode & OPT_LWPS)
396 			(void) printf(USER_HEADER_LWP);
397 		else
398 			(void) printf(USER_HEADER_PROC);
399 		break;
400 	case LT_LWPS:
401 		if (opts.o_outpmode & OPT_LWPS) {
402 			if (opts.o_outpmode & OPT_PSINFO) {
403 				if (opts.o_outpmode & OPT_LGRP)
404 					(void) printf(PSINFO_HEADER_LWP_LGRP);
405 				else
406 					(void) printf(PSINFO_HEADER_LWP);
407 			}
408 			if (opts.o_outpmode & OPT_MSACCT)
409 				(void) printf(USAGE_HEADER_LWP);
410 		} else {
411 			if (opts.o_outpmode & OPT_PSINFO) {
412 				if (opts.o_outpmode & OPT_LGRP)
413 					(void) printf(PSINFO_HEADER_PROC_LGRP);
414 				else
415 					(void) printf(PSINFO_HEADER_PROC);
416 			}
417 			if (opts.o_outpmode & OPT_MSACCT)
418 				(void) printf(USAGE_HEADER_PROC);
419 		}
420 		break;
421 	}
422 
423 	(void) putp(t_uloff);
424 	(void) putp(t_eol);
425 	(void) putchar('\n');
426 
427 	for (i = 0; i < list->l_used; i++) {
428 		switch (list->l_type) {
429 		case LT_PROJECTS:
430 		case LT_TASKS:
431 		case LT_USERS:
432 		case LT_ZONES:
433 			id = list->l_ptrs[i];
434 			/*
435 			 * CPU usage and memory usage normalization
436 			 */
437 			if (total_cpu >= 100)
438 				cpu = (100 * id->id_pctcpu) / total_cpu;
439 			else
440 				cpu = id->id_pctcpu;
441 			if (id->id_sizematch == B_FALSE && total_mem >= 100)
442 				mem = (100 * id->id_pctmem) / total_mem;
443 			else
444 				mem = id->id_pctmem;
445 			if (list->l_type == LT_USERS)
446 				pwd_getname(id->id_uid, pname, LOGNAME_MAX + 1);
447 			else if (list->l_type == LT_ZONES)
448 				getzonename(id->id_zoneid, zonename,
449 				    ZONENAME_MAX);
450 			else
451 				getprojname(id->id_projid, projname,
452 				    PROJNAME_MAX);
453 			Format_size(psize, id->id_size, 6);
454 			Format_size(prssize, id->id_rssize, 6);
455 			Format_pct(pmem, mem, 4);
456 			Format_pct(pcpu, cpu, 4);
457 			Format_time(ptime, id->id_time, 10);
458 			if (opts.o_outpmode & OPT_TTY)
459 				(void) putchar('\r');
460 			if (list->l_type == LT_PROJECTS)
461 				(void) printf(PROJECT_LINE, (int)id->id_projid,
462 				    id->id_nproc, psize, prssize, pmem, ptime,
463 				    pcpu, projname);
464 			else if (list->l_type == LT_TASKS)
465 				(void) printf(TASK_LINE, (int)id->id_taskid,
466 				    id->id_nproc, psize, prssize, pmem, ptime,
467 				    pcpu, projname);
468 			else if (list->l_type == LT_ZONES)
469 				(void) printf(ZONE_LINE, (int)id->id_zoneid,
470 				    id->id_nproc, psize, prssize, pmem, ptime,
471 				    pcpu, zonename);
472 			else
473 				(void) printf(USER_LINE, id->id_nproc, pname,
474 				    psize, prssize, pmem, ptime, pcpu);
475 			(void) putp(t_eol);
476 			(void) putchar('\n');
477 			break;
478 		case LT_LWPS:
479 			lwp = list->l_ptrs[i];
480 			if (opts.o_outpmode & OPT_LWPS)
481 				lwpid = lwp->li_info.pr_lwp.pr_lwpid;
482 			else
483 				lwpid = lwp->li_info.pr_nlwp +
484 				    lwp->li_info.pr_nzomb;
485 			pwd_getname(lwp->li_info.pr_uid, pname,
486 			    LOGNAME_MAX + 1);
487 			if (opts.o_outpmode & OPT_PSINFO) {
488 				Format_size(psize, lwp->li_info.pr_size, 6);
489 				Format_size(prssize, lwp->li_info.pr_rssize, 6);
490 				Format_state(pstate,
491 				    lwp->li_info.pr_lwp.pr_sname,
492 				    lwp->li_info.pr_lwp.pr_onpro, 7);
493 				if (strcmp(lwp->li_info.pr_lwp.pr_clname,
494 				    "RT") == 0 ||
495 				    strcmp(lwp->li_info.pr_lwp.pr_clname,
496 				    "SYS") == 0 ||
497 				    lwp->li_info.pr_lwp.pr_sname == 'Z')
498 					(void) strcpy(pnice, "  -");
499 				else
500 					Format_num(pnice,
501 					    lwp->li_info.pr_lwp.pr_nice - NZERO,
502 					    4);
503 				Format_num(ppri, lwp->li_info.pr_lwp.pr_pri, 4);
504 				Format_pct(pcpu,
505 				    FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu), 4);
506 				if (opts.o_outpmode & OPT_LWPS)
507 					Format_time(ptime,
508 					    lwp->li_info.pr_lwp.pr_time.tv_sec,
509 					    10);
510 				else
511 					Format_time(ptime,
512 					    lwp->li_info.pr_time.tv_sec, 10);
513 				if (opts.o_outpmode & OPT_TTY)
514 					(void) putchar('\r');
515 				stripfname(lwp->li_info.pr_fname);
516 				if (opts.o_outpmode & OPT_LGRP) {
517 					(void) printf(PSINFO_LINE_LGRP,
518 					    (int)lwp->li_info.pr_pid, pname,
519 					    psize, prssize, pstate, ppri, pnice,
520 					    ptime, pcpu,
521 					    (int)lwp->li_info.pr_lwp.pr_lgrp,
522 					    lwp->li_info.pr_fname, lwpid);
523 				} else {
524 					(void) printf(PSINFO_LINE,
525 					    (int)lwp->li_info.pr_pid, pname,
526 					    psize, prssize, pstate, ppri, pnice,
527 					    ptime, pcpu,
528 					    lwp->li_info.pr_fname, lwpid);
529 				}
530 				(void) putp(t_eol);
531 				(void) putchar('\n');
532 			}
533 			if (opts.o_outpmode & OPT_MSACCT) {
534 				Format_pct(usr, lwp->li_usr, 4);
535 				Format_pct(sys, lwp->li_sys, 4);
536 				Format_pct(slp, lwp->li_slp, 4);
537 				Format_num(vcx, lwp->li_vcx, 4);
538 				Format_num(icx, lwp->li_icx, 4);
539 				Format_num(scl, lwp->li_scl, 4);
540 				Format_num(sig, lwp->li_sig, 4);
541 				Format_pct(trp, lwp->li_trp, 4);
542 				Format_pct(tfl, lwp->li_tfl, 4);
543 				Format_pct(dfl, lwp->li_dfl, 4);
544 				Format_pct(lck, lwp->li_lck, 4);
545 				Format_pct(lat, lwp->li_lat, 4);
546 				if (opts.o_outpmode & OPT_TTY)
547 					(void) putchar('\r');
548 				stripfname(lwp->li_info.pr_fname);
549 				(void) printf(USAGE_LINE,
550 				    (int)lwp->li_info.pr_pid, pname,
551 				    usr, sys, trp, tfl, dfl, lck,
552 				    slp, lat, vcx, icx, scl, sig,
553 				    lwp->li_info.pr_fname, lwpid);
554 				(void) putp(t_eol);
555 				(void) putchar('\n');
556 			}
557 			break;
558 		}
559 	}
560 
561 	if (opts.o_outpmode & OPT_TTY)
562 		(void) putchar('\r');
563 	if (opts.o_outpmode & OPT_TERMCAP) {
564 		switch (list->l_type) {
565 		case LT_PROJECTS:
566 		case LT_USERS:
567 		case LT_TASKS:
568 		case LT_ZONES:
569 			while (i++ < opts.o_nbottom) {
570 				(void) putp(t_eol);
571 				(void) putchar('\n');
572 			}
573 			break;
574 		case LT_LWPS:
575 			while (i++ < opts.o_ntop) {
576 				(void) putp(t_eol);
577 				(void) putchar('\n');
578 			}
579 		}
580 	}
581 
582 	if (opts.o_outpmode & OPT_TTY)
583 		(void) putchar('\r');
584 
585 	if ((opts.o_outpmode & OPT_SPLIT) && list->l_type == LT_LWPS)
586 		return;
587 
588 	(void) printf(TOTAL_LINE, total_procs, total_lwps,
589 	    loadavg[LOADAVG_1MIN], loadavg[LOADAVG_5MIN],
590 	    loadavg[LOADAVG_15MIN]);
591 	(void) putp(t_eol);
592 	(void) putchar('\n');
593 	if (opts.o_outpmode & OPT_TTY)
594 		(void) putchar('\r');
595 	(void) putp(t_eol);
596 	(void) fflush(stdout);
597 }
598 
599 static lwp_info_t *
600 list_add_lwp(list_t *list, pid_t pid, id_t lwpid)
601 {
602 	lwp_info_t *lwp;
603 
604 	if (list->l_head == NULL) {
605 		list->l_head = list->l_tail = lwp = Zalloc(sizeof (lwp_info_t));
606 	} else {
607 		lwp = Zalloc(sizeof (lwp_info_t));
608 		lwp->li_prev = list->l_tail;
609 		((lwp_info_t *)list->l_tail)->li_next = lwp;
610 		list->l_tail = lwp;
611 	}
612 	lwp->li_info.pr_pid = pid;
613 	lwp->li_info.pr_lwp.pr_lwpid = lwpid;
614 	lwpid_add(lwp, pid, lwpid);
615 	list->l_count++;
616 	return (lwp);
617 }
618 
619 static void
620 list_remove_lwp(list_t *list, lwp_info_t *lwp)
621 {
622 	if (lwp->li_prev)
623 		lwp->li_prev->li_next = lwp->li_next;
624 	else
625 		list->l_head = lwp->li_next;	/* removing the head */
626 	if (lwp->li_next)
627 		lwp->li_next->li_prev = lwp->li_prev;
628 	else
629 		list->l_tail = lwp->li_prev;	/* removing the tail */
630 	lwpid_del(lwp->li_info.pr_pid, lwp->li_info.pr_lwp.pr_lwpid);
631 	if (lwpid_pidcheck(lwp->li_info.pr_pid) == 0)
632 		fds_rm(lwp->li_info.pr_pid);
633 	list->l_count--;
634 	free(lwp);
635 }
636 
637 static void
638 list_clear(list_t *list)
639 {
640 	if (list->l_type == LT_LWPS) {
641 		lwp_info_t	*lwp = list->l_tail;
642 		lwp_info_t	*lwp_tmp;
643 
644 		fd_closeall();
645 		while (lwp) {
646 			lwp_tmp = lwp;
647 			lwp = lwp->li_prev;
648 			list_remove_lwp(&lwps, lwp_tmp);
649 		}
650 	} else {
651 		id_info_t *id = list->l_head;
652 		id_info_t *nextid;
653 
654 		while (id) {
655 			nextid = id->id_next;
656 			free(id);
657 			id = nextid;
658 		}
659 		list->l_count = 0;
660 		list->l_head = list->l_tail = NULL;
661 	}
662 }
663 
664 static void
665 list_update(list_t *list, lwp_info_t *lwp)
666 {
667 	id_info_t *id;
668 
669 	if (list->l_head == NULL) {			/* first element */
670 		list->l_head = list->l_tail = id = Zalloc(sizeof (id_info_t));
671 		goto update;
672 	}
673 
674 	for (id = list->l_head; id; id = id->id_next) {
675 		if ((list->l_type == LT_USERS) &&
676 		    (id->id_uid != lwp->li_info.pr_uid))
677 			continue;
678 		if ((list->l_type == LT_TASKS) &&
679 		    (id->id_taskid != lwp->li_info.pr_taskid))
680 			continue;
681 		if ((list->l_type == LT_PROJECTS) &&
682 		    (id->id_projid != lwp->li_info.pr_projid))
683 			continue;
684 		if ((list->l_type == LT_ZONES) &&
685 		    (id->id_zoneid != lwp->li_info.pr_zoneid))
686 			continue;
687 		if ((list->l_type == LT_LGRPS) &&
688 		    (id->id_lgroup != lwp->li_info.pr_lwp.pr_lgrp))
689 			continue;
690 		id->id_nproc++;
691 		id->id_taskid	= lwp->li_info.pr_taskid;
692 		id->id_projid	= lwp->li_info.pr_projid;
693 		id->id_zoneid	= lwp->li_info.pr_zoneid;
694 		id->id_lgroup	= lwp->li_info.pr_lwp.pr_lgrp;
695 
696 		if (lwp->li_flags & LWP_REPRESENT) {
697 			id->id_size	+= lwp->li_info.pr_size;
698 			id->id_rssize	+= lwp->li_info.pr_rssize;
699 		}
700 		id->id_pctcpu	+= FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
701 		if (opts.o_outpmode & OPT_LWPS)
702 			id->id_time += TIME2SEC(lwp->li_info.pr_lwp.pr_time);
703 		else
704 			id->id_time += TIME2SEC(lwp->li_info.pr_time);
705 		id->id_pctmem	+= FRC2PCT(lwp->li_info.pr_pctmem);
706 		id->id_key	+= lwp->li_key;
707 		total_cpu	+= FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
708 		total_mem	+= FRC2PCT(lwp->li_info.pr_pctmem);
709 		return;
710 	}
711 
712 	id = list->l_tail;
713 	id->id_next = Zalloc(sizeof (id_info_t));
714 	id->id_next->id_prev = list->l_tail;
715 	id->id_next->id_next = NULL;
716 	list->l_tail = id->id_next;
717 	id = list->l_tail;
718 update:
719 	id->id_uid	= lwp->li_info.pr_uid;
720 	id->id_projid	= lwp->li_info.pr_projid;
721 	id->id_taskid	= lwp->li_info.pr_taskid;
722 	id->id_zoneid	= lwp->li_info.pr_zoneid;
723 	id->id_lgroup	= lwp->li_info.pr_lwp.pr_lgrp;
724 	id->id_nproc++;
725 	id->id_sizematch = B_FALSE;
726 	if (lwp->li_flags & LWP_REPRESENT) {
727 		id->id_size	= lwp->li_info.pr_size;
728 		id->id_rssize	= lwp->li_info.pr_rssize;
729 	}
730 	id->id_pctcpu	= FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
731 	if (opts.o_outpmode & OPT_LWPS)
732 		id->id_time = TIME2SEC(lwp->li_info.pr_lwp.pr_time);
733 	else
734 		id->id_time = TIME2SEC(lwp->li_info.pr_time);
735 	id->id_pctmem	= FRC2PCT(lwp->li_info.pr_pctmem);
736 	id->id_key	= lwp->li_key;
737 	total_cpu	+= id->id_pctcpu;
738 	total_mem	+= id->id_pctmem;
739 	list->l_count++;
740 }
741 
742 static void
743 lwp_update(lwp_info_t *lwp, pid_t pid, id_t lwpid, struct prusage *usage)
744 {
745 	float period;
746 
747 	if (!lwpid_is_active(pid, lwpid)) {
748 		/*
749 		 * If we are reading cpu times for the first time then
750 		 * calculate average cpu times based on whole process
751 		 * execution time.
752 		 */
753 		(void) memcpy(&lwp->li_usage, usage, sizeof (prusage_t));
754 		period = TIME2NSEC(usage->pr_rtime);
755 		period = period/(float)100;
756 
757 		if (period == 0) { /* zombie */
758 			period = 1;
759 			lwp->li_usr = 0;
760 			lwp->li_sys = 0;
761 			lwp->li_slp = 0;
762 		} else {
763 			lwp->li_usr = TIME2NSEC(usage->pr_utime)/period;
764 			lwp->li_sys = TIME2NSEC(usage->pr_stime)/period;
765 			lwp->li_slp = TIME2NSEC(usage->pr_slptime)/period;
766 		}
767 		lwp->li_trp = TIME2NSEC(usage->pr_ttime)/period;
768 		lwp->li_tfl = TIME2NSEC(usage->pr_tftime)/period;
769 		lwp->li_dfl = TIME2NSEC(usage->pr_dftime)/period;
770 		lwp->li_lck = TIME2NSEC(usage->pr_ltime)/period;
771 		lwp->li_lat = TIME2NSEC(usage->pr_wtime)/period;
772 		period = (period / NANOSEC)*(float)100; /* now in seconds */
773 		lwp->li_vcx = (ulong_t)
774 		    (opts.o_interval * (usage->pr_vctx/period));
775 		lwp->li_icx = (ulong_t)
776 		    (opts.o_interval * (usage->pr_ictx/period));
777 		lwp->li_scl = (ulong_t)
778 		    (opts.o_interval * (usage->pr_sysc/period));
779 		lwp->li_sig = (ulong_t)
780 		    (opts.o_interval * (usage->pr_sigs/period));
781 		(void) lwpid_set_active(pid, lwpid);
782 	} else {
783 		/*
784 		 * If this is not a first time we are reading a process's
785 		 * CPU times then recalculate CPU times based on fresh data
786 		 * obtained from procfs and previous CPU time usage values.
787 		 */
788 		period = TIME2NSEC(usage->pr_rtime)-
789 		    TIME2NSEC(lwp->li_usage.pr_rtime);
790 		period = period/(float)100;
791 
792 		if (period == 0) { /* zombie */
793 			period = 1;
794 			lwp->li_usr = 0;
795 			lwp->li_sys = 0;
796 			lwp->li_slp = 0;
797 		} else {
798 			lwp->li_usr = (TIME2NSEC(usage->pr_utime)-
799 			    TIME2NSEC(lwp->li_usage.pr_utime))/period;
800 			lwp->li_sys = (TIME2NSEC(usage->pr_stime) -
801 			    TIME2NSEC(lwp->li_usage.pr_stime))/period;
802 			lwp->li_slp = (TIME2NSEC(usage->pr_slptime) -
803 			    TIME2NSEC(lwp->li_usage.pr_slptime))/period;
804 		}
805 		lwp->li_trp = (TIME2NSEC(usage->pr_ttime) -
806 		    TIME2NSEC(lwp->li_usage.pr_ttime))/period;
807 		lwp->li_tfl = (TIME2NSEC(usage->pr_tftime) -
808 		    TIME2NSEC(lwp->li_usage.pr_tftime))/period;
809 		lwp->li_dfl = (TIME2NSEC(usage->pr_dftime) -
810 		    TIME2NSEC(lwp->li_usage.pr_dftime))/period;
811 		lwp->li_lck = (TIME2NSEC(usage->pr_ltime) -
812 		    TIME2NSEC(lwp->li_usage.pr_ltime))/period;
813 		lwp->li_lat = (TIME2NSEC(usage->pr_wtime) -
814 		    TIME2NSEC(lwp->li_usage.pr_wtime))/period;
815 		lwp->li_vcx = usage->pr_vctx - lwp->li_usage.pr_vctx;
816 		lwp->li_icx = usage->pr_ictx - lwp->li_usage.pr_ictx;
817 		lwp->li_scl = usage->pr_sysc - lwp->li_usage.pr_sysc;
818 		lwp->li_sig = usage->pr_sigs - lwp->li_usage.pr_sigs;
819 		(void) memcpy(&lwp->li_usage, usage, sizeof (prusage_t));
820 	}
821 }
822 
823 static int
824 read_procfile(fd_t **fd, char *pidstr, char *file, void *buf, size_t bufsize)
825 {
826 	char procfile[MAX_PROCFS_PATH];
827 
828 	(void) snprintf(procfile, MAX_PROCFS_PATH,
829 	    "/proc/%s/%s", pidstr, file);
830 	if ((*fd = fd_open(procfile, O_RDONLY, *fd)) == NULL)
831 		return (1);
832 	if (pread(fd_getfd(*fd), buf, bufsize, 0) != bufsize) {
833 		fd_close(*fd);
834 		return (1);
835 	}
836 	return (0);
837 }
838 
839 static void
840 add_proc(psinfo_t *psinfo)
841 {
842 	lwp_info_t *lwp;
843 	id_t lwpid;
844 	pid_t pid = psinfo->pr_pid;
845 
846 	lwpid = psinfo->pr_lwp.pr_lwpid;
847 	if ((lwp = lwpid_get(pid, lwpid)) == NULL)
848 		lwp = list_add_lwp(&lwps, pid, lwpid);
849 	lwp->li_flags |= LWP_ALIVE | LWP_REPRESENT;
850 	(void) memcpy(&lwp->li_info, psinfo, sizeof (psinfo_t));
851 	lwp->li_info.pr_lwp.pr_pctcpu = lwp->li_info.pr_pctcpu;
852 }
853 
854 static void
855 add_lwp(psinfo_t *psinfo, lwpsinfo_t *lwpsinfo, int flags)
856 {
857 	lwp_info_t *lwp;
858 	pid_t pid = psinfo->pr_pid;
859 	id_t lwpid = lwpsinfo->pr_lwpid;
860 
861 	if ((lwp = lwpid_get(pid, lwpid)) == NULL)
862 		lwp = list_add_lwp(&lwps, pid, lwpid);
863 	lwp->li_flags &= ~LWP_REPRESENT;
864 	lwp->li_flags |= LWP_ALIVE;
865 	lwp->li_flags |= flags;
866 	(void) memcpy(&lwp->li_info, psinfo,
867 	    sizeof (psinfo_t) - sizeof (lwpsinfo_t));
868 	(void) memcpy(&lwp->li_info.pr_lwp, lwpsinfo, sizeof (lwpsinfo_t));
869 }
870 
871 static void
872 prstat_scandir(DIR *procdir)
873 {
874 	char *pidstr;
875 	pid_t pid;
876 	id_t lwpid;
877 	size_t entsz;
878 	long nlwps, nent, i;
879 	char *buf, *ptr;
880 
881 	fds_t *fds;
882 	lwp_info_t *lwp;
883 	dirent_t *direntp;
884 
885 	prheader_t	header;
886 	psinfo_t	psinfo;
887 	prusage_t	usage;
888 	lwpsinfo_t	*lwpsinfo;
889 	prusage_t	*lwpusage;
890 
891 	total_procs = 0;
892 	total_lwps = 0;
893 	total_cpu = 0;
894 	total_mem = 0;
895 
896 	convert_zone(&zone_tbl);
897 	for (rewinddir(procdir); (direntp = readdir(procdir)); ) {
898 		pidstr = direntp->d_name;
899 		if (pidstr[0] == '.')	/* skip "." and ".."  */
900 			continue;
901 		pid = atoi(pidstr);
902 		if (pid == 0 || pid == 2 || pid == 3)
903 			continue;	/* skip sched, pageout and fsflush */
904 		if (has_element(&pid_tbl, pid) == 0)
905 			continue;	/* check if we really want this pid */
906 		fds = fds_get(pid);	/* get ptr to file descriptors */
907 
908 		if (read_procfile(&fds->fds_psinfo, pidstr,
909 		    "psinfo", &psinfo, sizeof (psinfo_t)) != 0)
910 			continue;
911 		if (!has_uid(&ruid_tbl, psinfo.pr_uid) ||
912 		    !has_uid(&euid_tbl, psinfo.pr_euid) ||
913 		    !has_element(&prj_tbl, psinfo.pr_projid) ||
914 		    !has_element(&tsk_tbl, psinfo.pr_taskid) ||
915 		    !has_zone(&zone_tbl, psinfo.pr_zoneid)) {
916 			fd_close(fds->fds_psinfo);
917 			continue;
918 		}
919 		nlwps = psinfo.pr_nlwp + psinfo.pr_nzomb;
920 
921 		if (nlwps > 1 && (opts.o_outpmode & (OPT_LWPS | OPT_PSETS))) {
922 			int rep_lwp = 0;
923 
924 			if (read_procfile(&fds->fds_lpsinfo, pidstr, "lpsinfo",
925 			    &header, sizeof (prheader_t)) != 0) {
926 				fd_close(fds->fds_psinfo);
927 				continue;
928 			}
929 
930 			nent = header.pr_nent;
931 			entsz = header.pr_entsize * nent;
932 			ptr = buf = Malloc(entsz);
933 			if (pread(fd_getfd(fds->fds_lpsinfo), buf,
934 			    entsz, sizeof (struct prheader)) != entsz) {
935 				fd_close(fds->fds_lpsinfo);
936 				fd_close(fds->fds_psinfo);
937 				free(buf);
938 				continue;
939 			}
940 
941 			nlwps = 0;
942 			for (i = 0; i < nent; i++, ptr += header.pr_entsize) {
943 				/*LINTED ALIGNMENT*/
944 				lwpsinfo = (lwpsinfo_t *)ptr;
945 				if (!has_element(&cpu_tbl,
946 				    lwpsinfo->pr_onpro) ||
947 				    !has_element(&set_tbl,
948 				    lwpsinfo->pr_bindpset) ||
949 				    !has_element(&lgr_tbl, lwpsinfo->pr_lgrp))
950 					continue;
951 				nlwps++;
952 				if ((opts.o_outpmode & (OPT_PSETS | OPT_LWPS))
953 				    == OPT_PSETS) {
954 					/*
955 					 * If one of process's LWPs is bound
956 					 * to a given processor set, report the
957 					 * whole process.  We may be doing this
958 					 * a few times but we'll get an accurate
959 					 * lwp count in return.
960 					 */
961 					add_proc(&psinfo);
962 				} else {
963 					if (rep_lwp == 0) {
964 						rep_lwp = 1;
965 						add_lwp(&psinfo, lwpsinfo,
966 						    LWP_REPRESENT);
967 					} else {
968 						add_lwp(&psinfo, lwpsinfo, 0);
969 					}
970 				}
971 			}
972 			free(buf);
973 			if (nlwps == 0) {
974 				fd_close(fds->fds_lpsinfo);
975 				fd_close(fds->fds_psinfo);
976 				continue;
977 			}
978 		} else {
979 			if (!has_element(&cpu_tbl, psinfo.pr_lwp.pr_onpro) ||
980 			    !has_element(&set_tbl, psinfo.pr_lwp.pr_bindpset) ||
981 			    !has_element(&lgr_tbl, psinfo.pr_lwp.pr_lgrp)) {
982 				fd_close(fds->fds_psinfo);
983 				continue;
984 			}
985 			add_proc(&psinfo);
986 		}
987 		if (!(opts.o_outpmode & OPT_MSACCT)) {
988 			total_procs++;
989 			total_lwps += nlwps;
990 			continue;
991 		}
992 		/*
993 		 * Get more information about processes from /proc/pid/usage.
994 		 * If process has more than one lwp, then we may have to
995 		 * also look at the /proc/pid/lusage file.
996 		 */
997 		if ((opts.o_outpmode & OPT_LWPS) && (nlwps > 1)) {
998 			if (read_procfile(&fds->fds_lusage, pidstr, "lusage",
999 			    &header, sizeof (prheader_t)) != 0) {
1000 				fd_close(fds->fds_lpsinfo);
1001 				fd_close(fds->fds_psinfo);
1002 				continue;
1003 			}
1004 			nent = header.pr_nent;
1005 			entsz = header.pr_entsize * nent;
1006 			buf = Malloc(entsz);
1007 			if (pread(fd_getfd(fds->fds_lusage), buf,
1008 			    entsz, sizeof (struct prheader)) != entsz) {
1009 				fd_close(fds->fds_lusage);
1010 				fd_close(fds->fds_lpsinfo);
1011 				fd_close(fds->fds_psinfo);
1012 				free(buf);
1013 				continue;
1014 			}
1015 			for (i = 1, ptr = buf + header.pr_entsize; i < nent;
1016 			    i++, ptr += header.pr_entsize) {
1017 				/*LINTED ALIGNMENT*/
1018 				lwpusage = (prusage_t *)ptr;
1019 				lwpid = lwpusage->pr_lwpid;
1020 				/*
1021 				 * New LWPs created after we read lpsinfo
1022 				 * will be ignored.  Don't want to do
1023 				 * everything all over again.
1024 				 */
1025 				if ((lwp = lwpid_get(pid, lwpid)) == NULL)
1026 					continue;
1027 				lwp_update(lwp, pid, lwpid, lwpusage);
1028 			}
1029 			free(buf);
1030 		} else {
1031 			if (read_procfile(&fds->fds_usage, pidstr, "usage",
1032 			    &usage, sizeof (prusage_t)) != 0) {
1033 				fd_close(fds->fds_lpsinfo);
1034 				fd_close(fds->fds_psinfo);
1035 				continue;
1036 			}
1037 			lwpid = psinfo.pr_lwp.pr_lwpid;
1038 			if ((lwp = lwpid_get(pid, lwpid)) == NULL)
1039 				continue;
1040 			lwp_update(lwp, pid, lwpid, &usage);
1041 		}
1042 		total_procs++;
1043 		total_lwps += nlwps;
1044 	}
1045 	fd_update();
1046 }
1047 
1048 /*
1049  * This procedure removes all dead lwps from the linked list of all lwps.
1050  * It also creates linked list of ids if necessary.
1051  */
1052 static void
1053 list_refresh(list_t *list)
1054 {
1055 	lwp_info_t *lwp, *lwp_next;
1056 
1057 	if (!(list->l_type & LT_LWPS))
1058 		return;
1059 
1060 	for (lwp = list->l_head; lwp != NULL; ) {
1061 		if (lwp->li_flags & LWP_ALIVE) {
1062 			/*
1063 			 * Process all live LWPs.
1064 			 * When we're done, mark them as dead.
1065 			 * They will be marked "alive" on the next
1066 			 * /proc scan if they still exist.
1067 			 */
1068 			lwp->li_key = list_getkeyval(list, lwp);
1069 			if (opts.o_outpmode & OPT_USERS)
1070 				list_update(&users, lwp);
1071 			if (opts.o_outpmode & OPT_TASKS)
1072 				list_update(&tasks, lwp);
1073 			if (opts.o_outpmode & OPT_PROJECTS)
1074 				list_update(&projects, lwp);
1075 			if (opts.o_outpmode & OPT_ZONES)
1076 				list_update(&zones, lwp);
1077 			if (opts.o_outpmode & OPT_LGRP)
1078 				list_update(&lgroups, lwp);
1079 			lwp->li_flags &= ~LWP_ALIVE;
1080 			lwp = lwp->li_next;
1081 
1082 		} else {
1083 			lwp_next = lwp->li_next;
1084 			list_remove_lwp(&lwps, lwp);
1085 			lwp = lwp_next;
1086 		}
1087 	}
1088 }
1089 
1090 static void
1091 curses_on()
1092 {
1093 	if ((opts.o_outpmode & OPT_TERMCAP) && (is_curses_on == FALSE)) {
1094 		(void) initscr();
1095 		(void) nonl();
1096 		(void) putp(t_smcup);
1097 		is_curses_on = TRUE;
1098 	}
1099 }
1100 
1101 static void
1102 curses_off()
1103 {
1104 	if ((is_curses_on == TRUE) && (opts.o_outpmode & OPT_TERMCAP)) {
1105 		(void) putp(t_rmcup);
1106 		(void) endwin();
1107 		is_curses_on = FALSE;
1108 	}
1109 	(void) fflush(stdout);
1110 }
1111 
1112 static int
1113 nlines()
1114 {
1115 	struct winsize ws;
1116 	char *envp;
1117 	int n;
1118 	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1) {
1119 		if (ws.ws_row > 0)
1120 			return (ws.ws_row);
1121 	}
1122 	if (envp = getenv("LINES")) {
1123 		if ((n = Atoi(envp)) > 0) {
1124 			opts.o_outpmode &= ~OPT_USEHOME;
1125 			return (n);
1126 		}
1127 	}
1128 	return (-1);
1129 }
1130 
1131 static void
1132 setmovecur()
1133 {
1134 	int i, n;
1135 	if ((opts.o_outpmode & OPT_FULLSCREEN) &&
1136 	    (opts.o_outpmode & OPT_USEHOME)) {
1137 		movecur = t_home;
1138 		return;
1139 	}
1140 	if (opts.o_outpmode & OPT_SPLIT) {
1141 		n = opts.o_ntop + opts.o_nbottom + 2;
1142 	} else {
1143 		if (opts.o_outpmode & OPT_USERS)
1144 			n = opts.o_nbottom + 1;
1145 		else
1146 			n = opts.o_ntop + 1;
1147 	}
1148 	if (((opts.o_outpmode & OPT_UDATE) || (opts.o_outpmode & OPT_DDATE)))
1149 		n++;
1150 
1151 	if (movecur != NULL && movecur != empty_string && movecur != t_home)
1152 		free(movecur);
1153 	movecur = Zalloc(strlen(t_up) * (n + 5));
1154 	for (i = 0; i <= n; i++)
1155 		(void) strcat(movecur, t_up);
1156 }
1157 
1158 static int
1159 setsize()
1160 {
1161 	static int oldn = 0;
1162 	int n;
1163 
1164 	if (opts.o_outpmode & OPT_FULLSCREEN) {
1165 		n = nlines();
1166 		if (n == oldn)
1167 			return (0);
1168 		oldn = n;
1169 		if (n == -1) {
1170 			opts.o_outpmode &= ~OPT_USEHOME;
1171 			setmovecur();		/* set default window size */
1172 			return (1);
1173 		}
1174 		n = n - 3;	/* minus header, total and cursor lines */
1175 		if ((opts.o_outpmode & OPT_UDATE) ||
1176 		    (opts.o_outpmode & OPT_DDATE))
1177 			n--;	/* minus timestamp */
1178 		if (n < 1)
1179 			Die(gettext("window is too small (try -n)\n"));
1180 		if (opts.o_outpmode & OPT_SPLIT) {
1181 			if (n < 8) {
1182 				Die(gettext("window is too small (try -n)\n"));
1183 			} else {
1184 				opts.o_ntop = (n / 4) * 3;
1185 				opts.o_nbottom = n - 1 - opts.o_ntop;
1186 			}
1187 		} else {
1188 			if (opts.o_outpmode & OPT_USERS)
1189 				opts.o_nbottom = n;
1190 			else
1191 				opts.o_ntop = n;
1192 		}
1193 	}
1194 	setmovecur();
1195 	return (1);
1196 }
1197 
1198 static void
1199 ldtermcap()
1200 {
1201 	int err;
1202 	if (setupterm(NULL, STDIN_FILENO, &err) == ERR) {
1203 		switch (err) {
1204 		case 0:
1205 			Warn(gettext("failed to load terminal info, "
1206 			    "defaulting to -c option\n"));
1207 			break;
1208 		case -1:
1209 			Warn(gettext("terminfo database not found, "
1210 			    "defaulting to -c option\n"));
1211 			break;
1212 		default:
1213 			Warn(gettext("failed to initialize terminal, "
1214 			    "defaulting to -c option\n"));
1215 		}
1216 		opts.o_outpmode &= ~OPT_TERMCAP;
1217 		t_up = t_eol = t_smcup = t_rmcup = movecur = empty_string;
1218 		t_ulon = t_uloff = empty_string;
1219 		return;
1220 	}
1221 	t_ulon	= tigetstr("smul");
1222 	t_uloff	= tigetstr("rmul");
1223 	t_up	= tigetstr("cuu1");
1224 	t_eol	= tigetstr("el");
1225 	t_smcup	= tigetstr("smcup");
1226 	t_rmcup = tigetstr("rmcup");
1227 	t_home  = tigetstr("home");
1228 	if ((t_up == (char *)-1) || (t_eol == (char *)-1) ||
1229 	    (t_smcup == (char *)-1) || (t_rmcup == (char *)-1)) {
1230 		opts.o_outpmode &= ~OPT_TERMCAP;
1231 		t_up = t_eol = t_smcup = t_rmcup = movecur = empty_string;
1232 		return;
1233 	}
1234 	if (t_up == NULL || t_eol == NULL) {
1235 		opts.o_outpmode &= ~OPT_TERMCAP;
1236 		t_eol = t_up = movecur = empty_string;
1237 		return;
1238 	}
1239 	if (t_ulon == (char *)-1 || t_uloff == (char *)-1 ||
1240 	    t_ulon == NULL || t_uloff == NULL) {
1241 		t_ulon = t_uloff = empty_string;  /* can live without it */
1242 	}
1243 	if (t_smcup == NULL || t_rmcup == NULL)
1244 		t_smcup = t_rmcup = empty_string;
1245 	if (t_home == (char *)-1 || t_home == NULL) {
1246 		opts.o_outpmode &= ~OPT_USEHOME;
1247 		t_home = empty_string;
1248 	}
1249 }
1250 
1251 static void
1252 sig_handler(int sig)
1253 {
1254 	switch (sig) {
1255 	case SIGTSTP:	sigtstp = 1;
1256 			break;
1257 	case SIGWINCH:	sigwinch = 1;
1258 			break;
1259 	case SIGINT:
1260 	case SIGTERM:	sigterm = 1;
1261 			break;
1262 	}
1263 }
1264 
1265 static void
1266 set_signals()
1267 {
1268 	(void) signal(SIGTSTP, sig_handler);
1269 	(void) signal(SIGINT, sig_handler);
1270 	(void) signal(SIGTERM, sig_handler);
1271 	if (opts.o_outpmode & OPT_FULLSCREEN)
1272 		(void) signal(SIGWINCH, sig_handler);
1273 }
1274 
1275 static void
1276 fill_table(table_t *table, char *arg, char option)
1277 {
1278 	char *p = strtok(arg, ", ");
1279 
1280 	if (p == NULL)
1281 		Die(gettext("invalid argument for -%c\n"), option);
1282 
1283 	add_element(table, (long)Atoi(p));
1284 	while (p = strtok(NULL, ", "))
1285 		add_element(table, (long)Atoi(p));
1286 }
1287 
1288 static void
1289 fill_prj_table(char *arg)
1290 {
1291 	projid_t projid;
1292 	char *p = strtok(arg, ", ");
1293 
1294 	if (p == NULL)
1295 		Die(gettext("invalid argument for -j\n"));
1296 
1297 	if ((projid = getprojidbyname(p)) == -1)
1298 		projid = Atoi(p);
1299 	add_element(&prj_tbl, (long)projid);
1300 
1301 	while (p = strtok(NULL, ", ")) {
1302 		if ((projid = getprojidbyname(p)) == -1)
1303 			projid = Atoi(p);
1304 		add_element(&prj_tbl, (long)projid);
1305 	}
1306 }
1307 
1308 static void
1309 fill_set_table(char *arg)
1310 {
1311 	char *p = strtok(arg, ", ");
1312 	psetid_t id;
1313 
1314 	if (p == NULL)
1315 		Die(gettext("invalid argument for -C\n"));
1316 
1317 	if ((id = Atoi(p)) == 0)
1318 		id = PS_NONE;
1319 	add_element(&set_tbl, id);
1320 	while (p = strtok(NULL, ", ")) {
1321 		if ((id = Atoi(p)) == 0)
1322 			id = PS_NONE;
1323 		if (!has_element(&set_tbl, id))
1324 			add_element(&set_tbl, id);
1325 	}
1326 }
1327 
1328 static void
1329 Exit()
1330 {
1331 	curses_off();
1332 	list_clear(&lwps);
1333 	list_clear(&users);
1334 	list_clear(&tasks);
1335 	list_clear(&projects);
1336 	list_clear(&zones);
1337 	fd_exit();
1338 }
1339 
1340 
1341 int
1342 main(int argc, char **argv)
1343 {
1344 	DIR *procdir;
1345 	char *p;
1346 	char *sortk = "cpu";	/* default sort key */
1347 	int opt;
1348 	int timeout;
1349 	struct pollfd pollset;
1350 	char key;
1351 
1352 	(void) setlocale(LC_ALL, "");
1353 	(void) textdomain(TEXT_DOMAIN);
1354 	Progname(argv[0]);
1355 	lwpid_init();
1356 	fd_init(Setrlimit());
1357 
1358 	pagesize = sysconf(_SC_PAGESIZE);
1359 
1360 	while ((opt = getopt(argc, argv,
1361 	    "vcd:HmaRLtu:U:n:p:C:P:h:s:S:j:k:TJz:Z")) != (int)EOF) {
1362 		switch (opt) {
1363 		case 'R':
1364 			opts.o_outpmode |= OPT_REALTIME;
1365 			break;
1366 		case 'c':
1367 			opts.o_outpmode &= ~OPT_TERMCAP;
1368 			opts.o_outpmode &= ~OPT_FULLSCREEN;
1369 			break;
1370 		case 'd':
1371 			if (optarg) {
1372 				if (*optarg == 'u')
1373 					opts.o_outpmode |= OPT_UDATE;
1374 				else if (*optarg == 'd')
1375 					opts.o_outpmode |= OPT_DDATE;
1376 				else
1377 					Usage();
1378 			} else {
1379 				Usage();
1380 			}
1381 			break;
1382 		case 'h':
1383 			fill_table(&lgr_tbl, optarg, 'h');
1384 			break;
1385 		case 'H':
1386 			opts.o_outpmode |= OPT_LGRP;
1387 			break;
1388 		case 'm':
1389 		case 'v':
1390 			opts.o_outpmode &= ~OPT_PSINFO;
1391 			opts.o_outpmode |=  OPT_MSACCT;
1392 			break;
1393 		case 't':
1394 			opts.o_outpmode &= ~OPT_PSINFO;
1395 			opts.o_outpmode |= OPT_USERS;
1396 			break;
1397 		case 'a':
1398 			opts.o_outpmode |= OPT_SPLIT | OPT_USERS;
1399 			break;
1400 		case 'T':
1401 			opts.o_outpmode |= OPT_SPLIT | OPT_TASKS;
1402 			break;
1403 		case 'J':
1404 			opts.o_outpmode |= OPT_SPLIT | OPT_PROJECTS;
1405 			break;
1406 		case 'n':
1407 			if ((p = strtok(optarg, ",")) == NULL)
1408 				Die(gettext("invalid argument for -n\n"));
1409 			opts.o_ntop = Atoi(p);
1410 			if (p = strtok(NULL, ","))
1411 				opts.o_nbottom = Atoi(p);
1412 			opts.o_outpmode &= ~OPT_FULLSCREEN;
1413 			break;
1414 		case 's':
1415 			opts.o_sortorder = -1;
1416 			sortk = optarg;
1417 			break;
1418 		case 'S':
1419 			opts.o_sortorder = 1;
1420 			sortk = optarg;
1421 			break;
1422 		case 'u':
1423 			if ((p = strtok(optarg, ", ")) == NULL)
1424 				Die(gettext("invalid argument for -u\n"));
1425 			add_uid(&euid_tbl, p);
1426 			while (p = strtok(NULL, ", "))
1427 				add_uid(&euid_tbl, p);
1428 			break;
1429 		case 'U':
1430 			if ((p = strtok(optarg, ", ")) == NULL)
1431 				Die(gettext("invalid argument for -U\n"));
1432 			add_uid(&ruid_tbl, p);
1433 			while (p = strtok(NULL, ", "))
1434 				add_uid(&ruid_tbl, p);
1435 			break;
1436 		case 'p':
1437 			fill_table(&pid_tbl, optarg, 'p');
1438 			break;
1439 		case 'C':
1440 			fill_set_table(optarg);
1441 			opts.o_outpmode |= OPT_PSETS;
1442 			break;
1443 		case 'P':
1444 			fill_table(&cpu_tbl, optarg, 'P');
1445 			break;
1446 		case 'k':
1447 			fill_table(&tsk_tbl, optarg, 'k');
1448 			break;
1449 		case 'j':
1450 			fill_prj_table(optarg);
1451 			break;
1452 		case 'L':
1453 			opts.o_outpmode |= OPT_LWPS;
1454 			break;
1455 		case 'z':
1456 			if ((p = strtok(optarg, ", ")) == NULL)
1457 				Die(gettext("invalid argument for -z\n"));
1458 			add_zone(&zone_tbl, p);
1459 			while (p = strtok(NULL, ", "))
1460 				add_zone(&zone_tbl, p);
1461 			break;
1462 		case 'Z':
1463 			opts.o_outpmode |= OPT_SPLIT | OPT_ZONES;
1464 			break;
1465 		default:
1466 			Usage();
1467 		}
1468 	}
1469 
1470 	(void) atexit(Exit);
1471 	if ((opts.o_outpmode & OPT_USERS) &&
1472 	    !(opts.o_outpmode & OPT_SPLIT))
1473 		opts.o_nbottom = opts.o_ntop;
1474 	if (opts.o_ntop == 0 || opts.o_nbottom == 0)
1475 		Die(gettext("invalid argument for -n\n"));
1476 	if (!(opts.o_outpmode & OPT_SPLIT) && (opts.o_outpmode & OPT_USERS) &&
1477 	    ((opts.o_outpmode & (OPT_PSINFO | OPT_MSACCT))))
1478 		Die(gettext("-t option cannot be used with -v or -m\n"));
1479 
1480 	if ((opts.o_outpmode & OPT_SPLIT) && (opts.o_outpmode && OPT_USERS) &&
1481 	    !((opts.o_outpmode & (OPT_PSINFO | OPT_MSACCT))))
1482 		Die(gettext("-t option cannot be used with "
1483 		    "-a, -J, -T or -Z\n"));
1484 
1485 	if ((opts.o_outpmode & OPT_USERS) &&
1486 	    (opts.o_outpmode & (OPT_TASKS | OPT_PROJECTS | OPT_ZONES)))
1487 		Die(gettext("-a option cannot be used with "
1488 		    "-t, -J, -T or -Z\n"));
1489 
1490 	if (((opts.o_outpmode & OPT_TASKS) &&
1491 	    (opts.o_outpmode & (OPT_PROJECTS|OPT_ZONES))) ||
1492 	    ((opts.o_outpmode & OPT_PROJECTS) &&
1493 	    (opts.o_outpmode & (OPT_TASKS|OPT_ZONES)))) {
1494 		Die(gettext(
1495 		    "-J, -T and -Z options are mutually exclusive\n"));
1496 	}
1497 
1498 	/*
1499 	 * There is not enough space to combine microstate information and
1500 	 * lgroup information and still fit in 80-column output.
1501 	 */
1502 	if ((opts.o_outpmode & OPT_LGRP) && (opts.o_outpmode & OPT_MSACCT)) {
1503 		Die(gettext("-H and -m options are mutually exclusive\n"));
1504 	}
1505 
1506 	if (argc > optind)
1507 		opts.o_interval = Atoi(argv[optind++]);
1508 	if (argc > optind)
1509 		opts.o_count = Atoi(argv[optind++]);
1510 	if (opts.o_count == 0)
1511 		Die(gettext("invalid counter value\n"));
1512 	if (argc > optind)
1513 		Usage();
1514 	if (opts.o_outpmode & OPT_REALTIME)
1515 		Priocntl("RT");
1516 	if (isatty(STDOUT_FILENO) == 1 && isatty(STDIN_FILENO))
1517 		opts.o_outpmode |= OPT_TTY;	/* interactive */
1518 	if (!(opts.o_outpmode & OPT_TTY)) {
1519 		opts.o_outpmode &= ~OPT_TERMCAP; /* no termcap for pipes */
1520 		opts.o_outpmode &= ~OPT_FULLSCREEN;
1521 	}
1522 	if (opts.o_outpmode & OPT_TERMCAP)
1523 		ldtermcap();		/* can turn OPT_TERMCAP off */
1524 	if (opts.o_outpmode & OPT_TERMCAP)
1525 		(void) setsize();
1526 	list_alloc(&lwps, opts.o_ntop);
1527 	list_alloc(&users, opts.o_nbottom);
1528 	list_alloc(&tasks, opts.o_nbottom);
1529 	list_alloc(&projects, opts.o_nbottom);
1530 	list_alloc(&zones, opts.o_nbottom);
1531 	list_alloc(&lgroups, opts.o_nbottom);
1532 	list_setkeyfunc(sortk, &opts, &lwps, LT_LWPS);
1533 	list_setkeyfunc(NULL, &opts, &users, LT_USERS);
1534 	list_setkeyfunc(NULL, &opts, &tasks, LT_TASKS);
1535 	list_setkeyfunc(NULL, &opts, &projects, LT_PROJECTS);
1536 	list_setkeyfunc(NULL, &opts, &zones, LT_ZONES);
1537 	list_setkeyfunc(NULL, &opts, &lgroups, LT_LGRPS);
1538 	if (opts.o_outpmode & OPT_TERMCAP)
1539 		curses_on();
1540 	if ((procdir = opendir("/proc")) == NULL)
1541 		Die(gettext("cannot open /proc directory\n"));
1542 	if (opts.o_outpmode & OPT_TTY) {
1543 		(void) printf(gettext("Please wait...\r"));
1544 		if (!(opts.o_outpmode & OPT_TERMCAP))
1545 			(void) putchar('\n');
1546 		(void) fflush(stdout);
1547 	}
1548 	set_signals();
1549 	pollset.fd = STDIN_FILENO;
1550 	pollset.events = POLLIN;
1551 	timeout = opts.o_interval * MILLISEC;
1552 
1553 	/*
1554 	 * main program loop
1555 	 */
1556 	do {
1557 		if (sigterm == 1)
1558 			break;
1559 		if (sigtstp == 1) {
1560 			curses_off();
1561 			(void) signal(SIGTSTP, SIG_DFL);
1562 			(void) kill(0, SIGTSTP);
1563 			/*
1564 			 * prstat stops here until it receives SIGCONT signal.
1565 			 */
1566 			sigtstp = 0;
1567 			(void) signal(SIGTSTP, sig_handler);
1568 			curses_on();
1569 			print_movecur = FALSE;
1570 			if (opts.o_outpmode & OPT_FULLSCREEN)
1571 				sigwinch = 1;
1572 		}
1573 		if (sigwinch == 1) {
1574 			if (setsize() == 1) {
1575 				list_free(&lwps);
1576 				list_free(&users);
1577 				list_free(&tasks);
1578 				list_free(&projects);
1579 				list_free(&zones);
1580 				list_alloc(&lwps, opts.o_ntop);
1581 				list_alloc(&users, opts.o_nbottom);
1582 				list_alloc(&tasks, opts.o_nbottom);
1583 				list_alloc(&projects, opts.o_nbottom);
1584 				list_alloc(&zones, opts.o_nbottom);
1585 			}
1586 			sigwinch = 0;
1587 			(void) signal(SIGWINCH, sig_handler);
1588 		}
1589 		prstat_scandir(procdir);
1590 		list_refresh(&lwps);
1591 		if (print_movecur)
1592 			(void) putp(movecur);
1593 		print_movecur = TRUE;
1594 		if ((opts.o_outpmode & OPT_PSINFO) ||
1595 		    (opts.o_outpmode & OPT_MSACCT)) {
1596 			list_sort(&lwps);
1597 			list_print(&lwps);
1598 		}
1599 		if (opts.o_outpmode & OPT_USERS) {
1600 			list_getsize(&users);
1601 			list_sort(&users);
1602 			list_print(&users);
1603 			list_clear(&users);
1604 		}
1605 		if (opts.o_outpmode & OPT_TASKS) {
1606 			list_getsize(&tasks);
1607 			list_sort(&tasks);
1608 			list_print(&tasks);
1609 			list_clear(&tasks);
1610 		}
1611 		if (opts.o_outpmode & OPT_PROJECTS) {
1612 			list_getsize(&projects);
1613 			list_sort(&projects);
1614 			list_print(&projects);
1615 			list_clear(&projects);
1616 		}
1617 		if (opts.o_outpmode & OPT_ZONES) {
1618 			list_getsize(&zones);
1619 			list_sort(&zones);
1620 			list_print(&zones);
1621 			list_clear(&zones);
1622 		}
1623 		if (opts.o_count == 1)
1624 			break;
1625 		/*
1626 		 * If poll() returns -1 and sets errno to EINTR here because
1627 		 * the process received a signal, it is Ok to abort this
1628 		 * timeout and loop around because we check the signals at the
1629 		 * top of the loop.
1630 		 */
1631 		if (opts.o_outpmode & OPT_TTY) {
1632 			if (poll(&pollset, (nfds_t)1, timeout) > 0) {
1633 				if (read(STDIN_FILENO, &key, 1) == 1) {
1634 					if (tolower(key) == 'q')
1635 						break;
1636 				}
1637 			}
1638 		} else {
1639 			(void) sleep(opts.o_interval);
1640 		}
1641 	} while (opts.o_count == (-1) || --opts.o_count);
1642 
1643 	if (opts.o_outpmode & OPT_TTY)
1644 		(void) putchar('\r');
1645 	return (0);
1646 }
1647