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 (c) 2013 Gary Mills
  24  *
  25  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  *
  28  * Portions Copyright 2009 Chad Mynhier
  29  */
  30 
  31 #include <sys/types.h>
  32 #include <sys/resource.h>
  33 #include <sys/loadavg.h>
  34 #include <sys/time.h>
  35 #include <sys/pset.h>
  36 #include <sys/vm_usage.h>
  37 #include <zone.h>
  38 #include <libzonecfg.h>
  39 
  40 #include <stdio.h>
  41 #include <stdlib.h>
  42 #include <unistd.h>
  43 #include <dirent.h>
  44 #include <string.h>
  45 #include <errno.h>
  46 #include <poll.h>
  47 #include <ctype.h>
  48 #include <fcntl.h>
  49 #include <limits.h>
  50 #include <signal.h>
  51 #include <time.h>
  52 #include <project.h>
  53 
  54 #include <langinfo.h>
  55 #include <libintl.h>
  56 #include <locale.h>
  57 
  58 #include "prstat.h"
  59 #include "prutil.h"
  60 #include "prtable.h"
  61 #include "prsort.h"
  62 #include "prfile.h"
  63 
  64 /*
  65  * x86 <sys/regs.h> ERR conflicts with <curses.h> ERR.  For the purposes
  66  * of this file, we care about the curses.h ERR so include that last.
  67  */
  68 
  69 #if     defined(ERR)
  70 #undef  ERR
  71 #endif
  72 
  73 #ifndef TEXT_DOMAIN                     /* should be defined by cc -D */
  74 #define TEXT_DOMAIN     "SYS_TEST"      /* use this only if it wasn't */
  75 #endif
  76 
  77 #include <curses.h>
  78 #include <term.h>
  79 
  80 #define LOGIN_WIDTH     8
  81 #define ZONE_WIDTH      28
  82 #define PROJECT_WIDTH   28
  83 
  84 #define PSINFO_HEADER_PROC \
  85 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP       "
  86 #define PSINFO_HEADER_PROC_LGRP \
  87 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU LGRP PROCESS/NLWP  "
  88 #define PSINFO_HEADER_LWP \
  89 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/LWPID      "
  90 #define PSINFO_HEADER_LWP_LGRP \
  91 "   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU LGRP PROCESS/LWPID "
  92 #define USAGE_HEADER_PROC \
  93 "   PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/NLWP  "
  94 #define USAGE_HEADER_LWP \
  95 "   PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/LWPID "
  96 #define USER_HEADER_PROC \
  97 " NPROC USERNAME  SWAP   RSS MEMORY      TIME  CPU                             "
  98 #define USER_HEADER_LWP \
  99 "  NLWP USERNAME  SWAP   RSS MEMORY      TIME  CPU                             "
 100 #define TASK_HEADER_PROC \
 101 "TASKID    NPROC  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
 102 #define TASK_HEADER_LWP \
 103 "TASKID     NLWP  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
 104 #define PROJECT_HEADER_PROC \
 105 "PROJID    NPROC  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
 106 #define PROJECT_HEADER_LWP \
 107 "PROJID     NLWP  SWAP   RSS MEMORY      TIME  CPU PROJECT                     "
 108 #define ZONE_HEADER_PROC \
 109 "ZONEID    NPROC  SWAP   RSS MEMORY      TIME  CPU ZONE                        "
 110 #define ZONE_HEADER_LWP \
 111 "ZONEID     NLWP  SWAP   RSS MEMORY      TIME  CPU ZONE                        "
 112 #define PSINFO_LINE \
 113 "%6d %-8s %5s %5s %-6s %3s  %3s %9s %3.3s%% %-.16s/%d"
 114 #define PSINFO_LINE_LGRP \
 115 "%6d %-8s %5s %5s %-6s %3s  %3s %9s %3.3s%% %4d %-.16s/%d"
 116 #define USAGE_LINE \
 117 "%6d %-8s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s %3.3s "\
 118 "%3.3s %3.3s %-.12s/%d"
 119 #define USER_LINE \
 120 "%6d %-8s %5.5s %5.5s   %3.3s%% %9s %3.3s%%"
 121 #define TASK_LINE \
 122 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
 123 #define PROJECT_LINE \
 124 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
 125 #define ZONE_LINE \
 126 "%6d %8d %5s %5s   %3.3s%% %9s %3.3s%% %28s"
 127 
 128 #define TOTAL_LINE \
 129 "Total: %d processes, %d lwps, load averages: %3.2f, %3.2f, %3.2f"
 130 
 131 /* global variables */
 132 
 133 static char     *t_ulon;                        /* termcap: start underline */
 134 static char     *t_uloff;                       /* termcap: end underline */
 135 static char     *t_up;                          /* termcap: cursor 1 line up */
 136 static char     *t_eol;                         /* termcap: clear end of line */
 137 static char     *t_smcup;                       /* termcap: cursor mvcap on */
 138 static char     *t_rmcup;                       /* termcap: cursor mvcap off */
 139 static char     *t_home;                        /* termcap: move cursor home */
 140 static char     *movecur = NULL;                /* termcap: move up string */
 141 static char     *empty_string = "\0";           /* termcap: empty string */
 142 static uint_t   print_movecur = FALSE;          /* print movecur or not */
 143 static int      is_curses_on = FALSE;           /* current curses state */
 144 
 145 static table_t  pid_tbl = {0, 0, NULL};         /* selected processes */
 146 static table_t  cpu_tbl = {0, 0, NULL};         /* selected processors */
 147 static table_t  set_tbl = {0, 0, NULL};         /* selected processor sets */
 148 static table_t  prj_tbl = {0, 0, NULL};         /* selected projects */
 149 static table_t  tsk_tbl = {0, 0, NULL};         /* selected tasks */
 150 static table_t  lgr_tbl = {0, 0, NULL};         /* selected lgroups */
 151 static zonetbl_t zone_tbl = {0, 0, NULL};       /* selected zones */
 152 static uidtbl_t euid_tbl = {0, 0, NULL};        /* selected effective users */
 153 static uidtbl_t ruid_tbl = {0, 0, NULL};        /* selected real users */
 154 
 155 static uint_t   total_procs;                    /* total number of procs */
 156 static uint_t   total_lwps;                     /* total number of lwps */
 157 static float    total_cpu;                      /* total cpu usage */
 158 static float    total_mem;                      /* total memory usage */
 159 
 160 static list_t   lwps;                           /* list of lwps/processes */
 161 static list_t   users;                          /* list of users */
 162 static list_t   tasks;                          /* list of tasks */
 163 static list_t   projects;                       /* list of projects */
 164 static list_t   zones;                          /* list of zones */
 165 static list_t   lgroups;                        /* list of lgroups */
 166 
 167 static volatile uint_t sigwinch = 0;
 168 static volatile uint_t sigtstp = 0;
 169 static volatile uint_t sigterm = 0;
 170 
 171 static long pagesize;
 172 
 173 /* default settings */
 174 
 175 static optdesc_t opts = {
 176         5,                      /* interval between updates, seconds */
 177         15,                     /* number of lines in top part */
 178         5,                      /* number of lines in bottom part */
 179         -1,                     /* number of iterations; infinitely */
 180         OPT_PSINFO | OPT_FULLSCREEN | OPT_USEHOME | OPT_TERMCAP,
 181         -1                      /* sort in decreasing order */
 182 };
 183 
 184 /*
 185  * Print timestamp as decimal reprentation of time_t value (-d u was specified)
 186  * or the standard date format (-d d was specified).
 187  */
 188 static void
 189 print_timestamp(void)
 190 {
 191         time_t t = time(NULL);
 192         static char *fmt = NULL;
 193 
 194         /* We only need to retrieve this once per invocation */
 195         if (fmt == NULL)
 196                 fmt = nl_langinfo(_DATE_FMT);
 197 
 198         if (opts.o_outpmode & OPT_UDATE) {
 199                 (void) printf("%ld", t);
 200         } else if (opts.o_outpmode & OPT_DDATE) {
 201                 char dstr[64];
 202                 int len;
 203 
 204                 len = strftime(dstr, sizeof (dstr), fmt, localtime(&t));
 205                 if (len > 0)
 206                         (void) printf("%s", dstr);
 207         }
 208         (void) putp(t_eol);
 209         (void) putchar('\n');
 210 }
 211 
 212 static void
 213 psetloadavg(long psetid, void *ptr)
 214 {
 215         double psetloadavg[3];
 216         double *loadavg = ptr;
 217 
 218         if (pset_getloadavg((psetid_t)psetid, psetloadavg, 3) != -1) {
 219                 *loadavg++ += psetloadavg[0];
 220                 *loadavg++ += psetloadavg[1];
 221                 *loadavg += psetloadavg[2];
 222         }
 223 }
 224 
 225 /*
 226  * Queries the memory virtual and rss size for each member of a list.
 227  * This will override the values computed by /proc aggregation.
 228  */
 229 static void
 230 list_getsize(list_t *list)
 231 {
 232         id_info_t *id;
 233         vmusage_t *results, *next;
 234         vmusage_t *match;
 235         size_t nres = 0;
 236         size_t i;
 237         uint_t flags = 0;
 238         int ret;
 239         size_t physmem = sysconf(_SC_PHYS_PAGES) * pagesize;
 240 
 241         /*
 242          * Determine what swap/rss results to calculate.  getvmusage() will
 243          * prune results returned to non-global zones automatically, so
 244          * there is no need to pass different flags when calling from a
 245          * non-global zone.
 246          *
 247          * Currently list_getsize() is only called with a single flag.  This
 248          * is because -Z, -J, -T, and -a are mutually exclusive.  Regardless
 249          * of this, we handle multiple flags.
 250          */
 251         if (opts.o_outpmode & OPT_USERS) {
 252                 /*
 253                  * Gather rss for all users in all zones.  Treat the same
 254                  * uid in different zones as the same user.
 255                  */
 256                 flags |= VMUSAGE_COL_RUSERS;
 257 
 258         } else if (opts.o_outpmode & OPT_TASKS) {
 259                 /* Gather rss for all tasks in all zones */
 260                 flags |= VMUSAGE_ALL_TASKS;
 261 
 262         } else if (opts.o_outpmode & OPT_PROJECTS) {
 263                 /*
 264                  * Gather rss for all projects in all zones.  Treat the same
 265                  * projid in diffrent zones as the same project.
 266                  */
 267                 flags |= VMUSAGE_COL_PROJECTS;
 268 
 269         } else if (opts.o_outpmode & OPT_ZONES) {
 270                 /* Gather rss for all zones */
 271                 flags |= VMUSAGE_ALL_ZONES;
 272 
 273         } else {
 274                 Die(gettext(
 275                     "Cannot determine rss flags for output options %x\n"),
 276                     opts.o_outpmode);
 277         }
 278 
 279         /*
 280          * getvmusage() returns an array of result structures.  One for
 281          * each zone, project, task, or user on the system, depending on
 282          * flags.
 283          *
 284          * If getvmusage() fails, prstat will use the size already gathered
 285          * from psinfo
 286          */
 287         if (getvmusage(flags, opts.o_interval, NULL, &nres) != 0)
 288                 return;
 289 
 290         results = (vmusage_t *)Malloc(sizeof (vmusage_t) * nres);
 291         for (;;) {
 292                 ret = getvmusage(flags, opts.o_interval, results, &nres);
 293                 if (ret == 0)
 294                         break;
 295                 if (errno == EOVERFLOW) {
 296                         results = (vmusage_t *)Realloc(results,
 297                             sizeof (vmusage_t) * nres);
 298                         continue;
 299                 }
 300                 /*
 301                  * Failure for some other reason.  Prstat will use the size
 302                  * already gathered from psinfo.
 303                  */
 304                 free(results);
 305                 return;
 306         }
 307         for (id = list->l_head; id != NULL; id = id->id_next) {
 308 
 309                 match = NULL;
 310                 next = results;
 311                 for (i = 0; i < nres; i++, next++) {
 312                         switch (flags) {
 313                         case VMUSAGE_COL_RUSERS:
 314                                 if (next->vmu_id == id->id_uid)
 315                                         match = next;
 316                                 break;
 317                         case VMUSAGE_ALL_TASKS:
 318                                 if (next->vmu_id == id->id_taskid)
 319                                         match = next;
 320                                 break;
 321                         case VMUSAGE_COL_PROJECTS:
 322                                 if (next->vmu_id == id->id_projid)
 323                                         match = next;
 324                                 break;
 325                         case VMUSAGE_ALL_ZONES:
 326                                 if (next->vmu_id == id->id_zoneid)
 327                                         match = next;
 328                                 break;
 329                         default:
 330                                 Die(gettext(
 331                                     "Unknown vmusage flags %d\n"), flags);
 332                         }
 333                 }
 334                 if (match != NULL) {
 335                         id->id_size = match->vmu_swap_all / 1024;
 336                         id->id_rssize = match->vmu_rss_all / 1024;
 337                         id->id_pctmem = (100.0 * (float)match->vmu_rss_all) /
 338                             (float)physmem;
 339                         /* Output using data from getvmusage() */
 340                         id->id_sizematch = B_TRUE;
 341                 }
 342                 /*
 343                  * If no match is found, prstat will use the size already
 344                  * gathered from psinfo.
 345                  */
 346         }
 347         free(results);
 348 }
 349 
 350 /*
 351  * A routine to display the contents of the list on the screen
 352  */
 353 static void
 354 list_print(list_t *list)
 355 {
 356         lwp_info_t *lwp;
 357         id_info_t *id;
 358         char usr[4], sys[4], trp[4], tfl[4];
 359         char dfl[4], lck[4], slp[4], lat[4];
 360         char vcx[4], icx[4], scl[4], sig[4];
 361         char psize[6], prssize[6], pmem[6], pcpu[6], ptime[12];
 362         char pstate[7], pnice[4], ppri[4];
 363         char pname[LOGNAME_MAX+1];
 364         char projname[PROJNAME_MAX+1];
 365         char zonename[ZONENAME_MAX+1];
 366         float cpu, mem;
 367         double loadavg[3] = {0, 0, 0};
 368         int i, lwpid;
 369 
 370         if (list->l_size == 0)
 371                 return;
 372 
 373         if (foreach_element(&set_tbl, &loadavg, psetloadavg) == 0) {
 374                 /*
 375                  * If processor sets aren't specified, we display system-wide
 376                  * load averages.
 377                  */
 378                 (void) getloadavg(loadavg, 3);
 379         }
 380 
 381         if (((opts.o_outpmode & OPT_UDATE) || (opts.o_outpmode & OPT_DDATE)) &&
 382             ((list->l_type == LT_LWPS) || !(opts.o_outpmode & OPT_SPLIT)))
 383                 print_timestamp();
 384         if (opts.o_outpmode & OPT_TTY)
 385                 (void) putchar('\r');
 386         (void) putp(t_ulon);
 387 
 388         switch (list->l_type) {
 389         case LT_PROJECTS:
 390                 if (opts.o_outpmode & OPT_LWPS)
 391                         (void) printf(PROJECT_HEADER_LWP);
 392                 else
 393                         (void) printf(PROJECT_HEADER_PROC);
 394                 break;
 395         case LT_TASKS:
 396                 if (opts.o_outpmode & OPT_LWPS)
 397                         (void) printf(TASK_HEADER_LWP);
 398                 else
 399                         (void) printf(TASK_HEADER_PROC);
 400                 break;
 401         case LT_ZONES:
 402                 if (opts.o_outpmode & OPT_LWPS)
 403                         (void) printf(ZONE_HEADER_LWP);
 404                 else
 405                         (void) printf(ZONE_HEADER_PROC);
 406                 break;
 407         case LT_USERS:
 408                 if (opts.o_outpmode & OPT_LWPS)
 409                         (void) printf(USER_HEADER_LWP);
 410                 else
 411                         (void) printf(USER_HEADER_PROC);
 412                 break;
 413         case LT_LWPS:
 414                 if (opts.o_outpmode & OPT_LWPS) {
 415                         if (opts.o_outpmode & OPT_PSINFO) {
 416                                 if (opts.o_outpmode & OPT_LGRP)
 417                                         (void) printf(PSINFO_HEADER_LWP_LGRP);
 418                                 else
 419                                         (void) printf(PSINFO_HEADER_LWP);
 420                         }
 421                         if (opts.o_outpmode & OPT_MSACCT)
 422                                 (void) printf(USAGE_HEADER_LWP);
 423                 } else {
 424                         if (opts.o_outpmode & OPT_PSINFO) {
 425                                 if (opts.o_outpmode & OPT_LGRP)
 426                                         (void) printf(PSINFO_HEADER_PROC_LGRP);
 427                                 else
 428                                         (void) printf(PSINFO_HEADER_PROC);
 429                         }
 430                         if (opts.o_outpmode & OPT_MSACCT)
 431                                 (void) printf(USAGE_HEADER_PROC);
 432                 }
 433                 break;
 434         }
 435 
 436         (void) putp(t_uloff);
 437         (void) putp(t_eol);
 438         (void) putchar('\n');
 439 
 440         for (i = 0; i < list->l_used; i++) {
 441                 switch (list->l_type) {
 442                 case LT_PROJECTS:
 443                 case LT_TASKS:
 444                 case LT_USERS:
 445                 case LT_ZONES:
 446                         id = list->l_ptrs[i];
 447                         /*
 448                          * CPU usage and memory usage normalization
 449                          */
 450                         if (total_cpu >= 100)
 451                                 cpu = (100 * id->id_pctcpu) / total_cpu;
 452                         else
 453                                 cpu = id->id_pctcpu;
 454                         if (id->id_sizematch == B_FALSE && total_mem >= 100)
 455                                 mem = (100 * id->id_pctmem) / total_mem;
 456                         else
 457                                 mem = id->id_pctmem;
 458                         if (list->l_type == LT_USERS) {
 459                                 pwd_getname(id->id_uid, pname, sizeof (pname),
 460                                     opts.o_outpmode & OPT_NORESOLVE,
 461                                     opts.o_outpmode & (OPT_TERMCAP|OPT_TRUNC),
 462                                     LOGIN_WIDTH);
 463                         } else if (list->l_type == LT_ZONES) {
 464                                 getzonename(id->id_zoneid, zonename,
 465                                     sizeof (zonename),
 466                                     opts.o_outpmode & (OPT_TERMCAP|OPT_TRUNC),
 467                                     ZONE_WIDTH);
 468                         } else {
 469                                 getprojname(id->id_projid, projname,
 470                                     sizeof (projname),
 471                                     opts.o_outpmode & OPT_NORESOLVE,
 472                                     opts.o_outpmode & (OPT_TERMCAP|OPT_TRUNC),
 473                                     PROJECT_WIDTH);
 474                         }
 475                         Format_size(psize, id->id_size, 6);
 476                         Format_size(prssize, id->id_rssize, 6);
 477                         Format_pct(pmem, mem, 4);
 478                         Format_pct(pcpu, cpu, 4);
 479                         Format_time(ptime, id->id_time, 10);
 480                         if (opts.o_outpmode & OPT_TTY)
 481                                 (void) putchar('\r');
 482                         if (list->l_type == LT_PROJECTS)
 483                                 (void) printf(PROJECT_LINE, (int)id->id_projid,
 484                                     id->id_nproc, psize, prssize, pmem, ptime,
 485                                     pcpu, projname);
 486                         else if (list->l_type == LT_TASKS)
 487                                 (void) printf(TASK_LINE, (int)id->id_taskid,
 488                                     id->id_nproc, psize, prssize, pmem, ptime,
 489                                     pcpu, projname);
 490                         else if (list->l_type == LT_ZONES)
 491                                 (void) printf(ZONE_LINE, (int)id->id_zoneid,
 492                                     id->id_nproc, psize, prssize, pmem, ptime,
 493                                     pcpu, zonename);
 494                         else
 495                                 (void) printf(USER_LINE, id->id_nproc, pname,
 496                                     psize, prssize, pmem, ptime, pcpu);
 497                         (void) putp(t_eol);
 498                         (void) putchar('\n');
 499                         break;
 500                 case LT_LWPS:
 501                         lwp = list->l_ptrs[i];
 502                         if (opts.o_outpmode & OPT_LWPS)
 503                                 lwpid = lwp->li_info.pr_lwp.pr_lwpid;
 504                         else
 505                                 lwpid = lwp->li_info.pr_nlwp +
 506                                     lwp->li_info.pr_nzomb;
 507                         pwd_getname(lwp->li_info.pr_uid, pname, sizeof (pname),
 508                             opts.o_outpmode & OPT_NORESOLVE,
 509                             opts.o_outpmode & (OPT_TERMCAP|OPT_TRUNC),
 510                             LOGIN_WIDTH);
 511                         if (opts.o_outpmode & OPT_PSINFO) {
 512                                 Format_size(psize, lwp->li_info.pr_size, 6);
 513                                 Format_size(prssize, lwp->li_info.pr_rssize, 6);
 514                                 Format_state(pstate,
 515                                     lwp->li_info.pr_lwp.pr_sname,
 516                                     lwp->li_info.pr_lwp.pr_onpro, 7);
 517                                 if (strcmp(lwp->li_info.pr_lwp.pr_clname,
 518                                     "RT") == 0 ||
 519                                     strcmp(lwp->li_info.pr_lwp.pr_clname,
 520                                     "SYS") == 0 ||
 521                                     lwp->li_info.pr_lwp.pr_sname == 'Z')
 522                                         (void) strcpy(pnice, "  -");
 523                                 else
 524                                         Format_num(pnice,
 525                                             lwp->li_info.pr_lwp.pr_nice - NZERO,
 526                                             4);
 527                                 Format_num(ppri, lwp->li_info.pr_lwp.pr_pri, 4);
 528                                 Format_pct(pcpu,
 529                                     FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu), 4);
 530                                 if (opts.o_outpmode & OPT_LWPS)
 531                                         Format_time(ptime,
 532                                             lwp->li_info.pr_lwp.pr_time.tv_sec,
 533                                             10);
 534                                 else
 535                                         Format_time(ptime,
 536                                             lwp->li_info.pr_time.tv_sec, 10);
 537                                 if (opts.o_outpmode & OPT_TTY)
 538                                         (void) putchar('\r');
 539                                 stripfname(lwp->li_info.pr_fname);
 540                                 if (opts.o_outpmode & OPT_LGRP) {
 541                                         (void) printf(PSINFO_LINE_LGRP,
 542                                             (int)lwp->li_info.pr_pid, pname,
 543                                             psize, prssize, pstate,
 544                                             ppri, pnice, ptime, pcpu,
 545                                             (int)lwp->li_info.pr_lwp.pr_lgrp,
 546                                             lwp->li_info.pr_fname, lwpid);
 547                                 } else {
 548                                         (void) printf(PSINFO_LINE,
 549                                             (int)lwp->li_info.pr_pid, pname,
 550                                             psize, prssize,
 551                                             pstate, ppri, pnice,
 552                                             ptime, pcpu,
 553                                             lwp->li_info.pr_fname, lwpid);
 554                                 }
 555                                 (void) putp(t_eol);
 556                                 (void) putchar('\n');
 557                         }
 558                         if (opts.o_outpmode & OPT_MSACCT) {
 559                                 Format_pct(usr, lwp->li_usr, 4);
 560                                 Format_pct(sys, lwp->li_sys, 4);
 561                                 Format_pct(slp, lwp->li_slp, 4);
 562                                 Format_num(vcx, lwp->li_vcx, 4);
 563                                 Format_num(icx, lwp->li_icx, 4);
 564                                 Format_num(scl, lwp->li_scl, 4);
 565                                 Format_num(sig, lwp->li_sig, 4);
 566                                 Format_pct(trp, lwp->li_trp, 4);
 567                                 Format_pct(tfl, lwp->li_tfl, 4);
 568                                 Format_pct(dfl, lwp->li_dfl, 4);
 569                                 Format_pct(lck, lwp->li_lck, 4);
 570                                 Format_pct(lat, lwp->li_lat, 4);
 571                                 if (opts.o_outpmode & OPT_TTY)
 572                                         (void) putchar('\r');
 573                                 stripfname(lwp->li_info.pr_fname);
 574                                 (void) printf(USAGE_LINE,
 575                                     (int)lwp->li_info.pr_pid, pname,
 576                                     usr, sys, trp, tfl, dfl, lck,
 577                                     slp, lat, vcx, icx, scl, sig,
 578                                     lwp->li_info.pr_fname, lwpid);
 579                                 (void) putp(t_eol);
 580                                 (void) putchar('\n');
 581                         }
 582                         break;
 583                 }
 584         }
 585 
 586         if (opts.o_outpmode & OPT_TTY)
 587                 (void) putchar('\r');
 588         if (opts.o_outpmode & OPT_TERMCAP) {
 589                 switch (list->l_type) {
 590                 case LT_PROJECTS:
 591                 case LT_USERS:
 592                 case LT_TASKS:
 593                 case LT_ZONES:
 594                         while (i++ < opts.o_nbottom) {
 595                                 (void) putp(t_eol);
 596                                 (void) putchar('\n');
 597                         }
 598                         break;
 599                 case LT_LWPS:
 600                         while (i++ < opts.o_ntop) {
 601                                 (void) putp(t_eol);
 602                                 (void) putchar('\n');
 603                         }
 604                 }
 605         }
 606 
 607         if (opts.o_outpmode & OPT_TTY)
 608                 (void) putchar('\r');
 609 
 610         if ((opts.o_outpmode & OPT_SPLIT) && list->l_type == LT_LWPS)
 611                 return;
 612 
 613         (void) printf(TOTAL_LINE, total_procs, total_lwps,
 614             loadavg[LOADAVG_1MIN], loadavg[LOADAVG_5MIN],
 615             loadavg[LOADAVG_15MIN]);
 616         (void) putp(t_eol);
 617         (void) putchar('\n');
 618         if (opts.o_outpmode & OPT_TTY)
 619                 (void) putchar('\r');
 620         (void) putp(t_eol);
 621         (void) fflush(stdout);
 622 }
 623 
 624 static lwp_info_t *
 625 list_add_lwp(list_t *list, pid_t pid, id_t lwpid)
 626 {
 627         lwp_info_t *lwp;
 628 
 629         if (list->l_head == NULL) {
 630                 list->l_head = list->l_tail = lwp = Zalloc(sizeof (lwp_info_t));
 631         } else {
 632                 lwp = Zalloc(sizeof (lwp_info_t));
 633                 lwp->li_prev = list->l_tail;
 634                 ((lwp_info_t *)list->l_tail)->li_next = lwp;
 635                 list->l_tail = lwp;
 636         }
 637         lwp->li_info.pr_pid = pid;
 638         lwp->li_info.pr_lwp.pr_lwpid = lwpid;
 639         lwpid_add(lwp, pid, lwpid);
 640         list->l_count++;
 641         return (lwp);
 642 }
 643 
 644 static void
 645 list_remove_lwp(list_t *list, lwp_info_t *lwp)
 646 {
 647         if (lwp->li_prev)
 648                 lwp->li_prev->li_next = lwp->li_next;
 649         else
 650                 list->l_head = lwp->li_next;      /* removing the head */
 651         if (lwp->li_next)
 652                 lwp->li_next->li_prev = lwp->li_prev;
 653         else
 654                 list->l_tail = lwp->li_prev;      /* removing the tail */
 655         lwpid_del(lwp->li_info.pr_pid, lwp->li_info.pr_lwp.pr_lwpid);
 656         if (lwpid_pidcheck(lwp->li_info.pr_pid) == 0)
 657                 fds_rm(lwp->li_info.pr_pid);
 658         list->l_count--;
 659         free(lwp);
 660 }
 661 
 662 static void
 663 list_clear(list_t *list)
 664 {
 665         if (list->l_type == LT_LWPS) {
 666                 lwp_info_t      *lwp = list->l_tail;
 667                 lwp_info_t      *lwp_tmp;
 668 
 669                 fd_closeall();
 670                 while (lwp) {
 671                         lwp_tmp = lwp;
 672                         lwp = lwp->li_prev;
 673                         list_remove_lwp(&lwps, lwp_tmp);
 674                 }
 675         } else {
 676                 id_info_t *id = list->l_head;
 677                 id_info_t *nextid;
 678 
 679                 while (id) {
 680                         nextid = id->id_next;
 681                         free(id);
 682                         id = nextid;
 683                 }
 684                 list->l_count = 0;
 685                 list->l_head = list->l_tail = NULL;
 686         }
 687 }
 688 
 689 static void
 690 list_update(list_t *list, lwp_info_t *lwp)
 691 {
 692         id_info_t *id;
 693 
 694         if (list->l_head == NULL) {                  /* first element */
 695                 list->l_head = list->l_tail = id = Zalloc(sizeof (id_info_t));
 696                 goto update;
 697         }
 698 
 699         for (id = list->l_head; id; id = id->id_next) {
 700                 if ((list->l_type == LT_USERS) &&
 701                     (id->id_uid != lwp->li_info.pr_uid))
 702                         continue;
 703                 if ((list->l_type == LT_TASKS) &&
 704                     (id->id_taskid != lwp->li_info.pr_taskid))
 705                         continue;
 706                 if ((list->l_type == LT_PROJECTS) &&
 707                     (id->id_projid != lwp->li_info.pr_projid))
 708                         continue;
 709                 if ((list->l_type == LT_ZONES) &&
 710                     (id->id_zoneid != lwp->li_info.pr_zoneid))
 711                         continue;
 712                 if ((list->l_type == LT_LGRPS) &&
 713                     (id->id_lgroup != lwp->li_info.pr_lwp.pr_lgrp))
 714                         continue;
 715                 id->id_nproc++;
 716                 id->id_taskid        = lwp->li_info.pr_taskid;
 717                 id->id_projid        = lwp->li_info.pr_projid;
 718                 id->id_zoneid        = lwp->li_info.pr_zoneid;
 719                 id->id_lgroup        = lwp->li_info.pr_lwp.pr_lgrp;
 720 
 721                 if (lwp->li_flags & LWP_REPRESENT) {
 722                         id->id_size  += lwp->li_info.pr_size;
 723                         id->id_rssize        += lwp->li_info.pr_rssize;
 724                 }
 725                 id->id_pctcpu        += FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
 726                 if (opts.o_outpmode & OPT_LWPS)
 727                         id->id_time += TIME2SEC(lwp->li_info.pr_lwp.pr_time);
 728                 else
 729                         id->id_time += TIME2SEC(lwp->li_info.pr_time);
 730                 id->id_pctmem        += FRC2PCT(lwp->li_info.pr_pctmem);
 731                 id->id_key   += lwp->li_key;
 732                 total_cpu       += FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
 733                 total_mem       += FRC2PCT(lwp->li_info.pr_pctmem);
 734                 return;
 735         }
 736 
 737         id = list->l_tail;
 738         id->id_next = Zalloc(sizeof (id_info_t));
 739         id->id_next->id_prev = list->l_tail;
 740         id->id_next->id_next = NULL;
 741         list->l_tail = id->id_next;
 742         id = list->l_tail;
 743 update:
 744         id->id_uid   = lwp->li_info.pr_uid;
 745         id->id_projid        = lwp->li_info.pr_projid;
 746         id->id_taskid        = lwp->li_info.pr_taskid;
 747         id->id_zoneid        = lwp->li_info.pr_zoneid;
 748         id->id_lgroup        = lwp->li_info.pr_lwp.pr_lgrp;
 749         id->id_nproc++;
 750         id->id_sizematch = B_FALSE;
 751         if (lwp->li_flags & LWP_REPRESENT) {
 752                 id->id_size  = lwp->li_info.pr_size;
 753                 id->id_rssize        = lwp->li_info.pr_rssize;
 754         }
 755         id->id_pctcpu        = FRC2PCT(lwp->li_info.pr_lwp.pr_pctcpu);
 756         if (opts.o_outpmode & OPT_LWPS)
 757                 id->id_time = TIME2SEC(lwp->li_info.pr_lwp.pr_time);
 758         else
 759                 id->id_time = TIME2SEC(lwp->li_info.pr_time);
 760         id->id_pctmem        = FRC2PCT(lwp->li_info.pr_pctmem);
 761         id->id_key   = lwp->li_key;
 762         total_cpu       += id->id_pctcpu;
 763         total_mem       += id->id_pctmem;
 764         list->l_count++;
 765 }
 766 
 767 static void
 768 lwp_update(lwp_info_t *lwp, pid_t pid, id_t lwpid, struct prusage *usage)
 769 {
 770         float period;
 771 
 772         if (!lwpid_is_active(pid, lwpid)) {
 773                 /*
 774                  * If we are reading cpu times for the first time then
 775                  * calculate average cpu times based on whole process
 776                  * execution time.
 777                  */
 778                 (void) memcpy(&lwp->li_usage, usage, sizeof (prusage_t));
 779                 period = TIME2NSEC(usage->pr_rtime);
 780                 period = period/(float)100;
 781 
 782                 if (period == 0) { /* zombie */
 783                         period = 1;
 784                         lwp->li_usr = 0;
 785                         lwp->li_sys = 0;
 786                         lwp->li_slp = 0;
 787                 } else {
 788                         lwp->li_usr = TIME2NSEC(usage->pr_utime)/period;
 789                         lwp->li_sys = TIME2NSEC(usage->pr_stime)/period;
 790                         lwp->li_slp = TIME2NSEC(usage->pr_slptime)/period;
 791                 }
 792                 lwp->li_trp = TIME2NSEC(usage->pr_ttime)/period;
 793                 lwp->li_tfl = TIME2NSEC(usage->pr_tftime)/period;
 794                 lwp->li_dfl = TIME2NSEC(usage->pr_dftime)/period;
 795                 lwp->li_lck = TIME2NSEC(usage->pr_ltime)/period;
 796                 lwp->li_lat = TIME2NSEC(usage->pr_wtime)/period;
 797                 period = (period / NANOSEC)*(float)100; /* now in seconds */
 798                 lwp->li_vcx = (ulong_t)
 799                     (opts.o_interval * (usage->pr_vctx/period));
 800                 lwp->li_icx = (ulong_t)
 801                     (opts.o_interval * (usage->pr_ictx/period));
 802                 lwp->li_scl = (ulong_t)
 803                     (opts.o_interval * (usage->pr_sysc/period));
 804                 lwp->li_sig = (ulong_t)
 805                     (opts.o_interval * (usage->pr_sigs/period));
 806                 (void) lwpid_set_active(pid, lwpid);
 807         } else {
 808                 /*
 809                  * If this is not a first time we are reading a process's
 810                  * CPU times then recalculate CPU times based on fresh data
 811                  * obtained from procfs and previous CPU time usage values.
 812                  */
 813                 period = TIME2NSEC(usage->pr_rtime)-
 814                     TIME2NSEC(lwp->li_usage.pr_rtime);
 815                 period = period/(float)100;
 816 
 817                 if (period == 0) { /* zombie */
 818                         period = 1;
 819                         lwp->li_usr = 0;
 820                         lwp->li_sys = 0;
 821                         lwp->li_slp = 0;
 822                 } else {
 823                         lwp->li_usr = (TIME2NSEC(usage->pr_utime)-
 824                             TIME2NSEC(lwp->li_usage.pr_utime))/period;
 825                         lwp->li_sys = (TIME2NSEC(usage->pr_stime) -
 826                             TIME2NSEC(lwp->li_usage.pr_stime))/period;
 827                         lwp->li_slp = (TIME2NSEC(usage->pr_slptime) -
 828                             TIME2NSEC(lwp->li_usage.pr_slptime))/period;
 829                 }
 830                 lwp->li_trp = (TIME2NSEC(usage->pr_ttime) -
 831                     TIME2NSEC(lwp->li_usage.pr_ttime))/period;
 832                 lwp->li_tfl = (TIME2NSEC(usage->pr_tftime) -
 833                     TIME2NSEC(lwp->li_usage.pr_tftime))/period;
 834                 lwp->li_dfl = (TIME2NSEC(usage->pr_dftime) -
 835                     TIME2NSEC(lwp->li_usage.pr_dftime))/period;
 836                 lwp->li_lck = (TIME2NSEC(usage->pr_ltime) -
 837                     TIME2NSEC(lwp->li_usage.pr_ltime))/period;
 838                 lwp->li_lat = (TIME2NSEC(usage->pr_wtime) -
 839                     TIME2NSEC(lwp->li_usage.pr_wtime))/period;
 840                 lwp->li_vcx = usage->pr_vctx - lwp->li_usage.pr_vctx;
 841                 lwp->li_icx = usage->pr_ictx - lwp->li_usage.pr_ictx;
 842                 lwp->li_scl = usage->pr_sysc - lwp->li_usage.pr_sysc;
 843                 lwp->li_sig = usage->pr_sigs - lwp->li_usage.pr_sigs;
 844                 (void) memcpy(&lwp->li_usage, usage, sizeof (prusage_t));
 845         }
 846 }
 847 
 848 static int
 849 read_procfile(fd_t **fd, char *pidstr, char *file, void *buf, size_t bufsize)
 850 {
 851         char procfile[MAX_PROCFS_PATH];
 852 
 853         (void) snprintf(procfile, MAX_PROCFS_PATH,
 854             "/proc/%s/%s", pidstr, file);
 855         if ((*fd = fd_open(procfile, O_RDONLY, *fd)) == NULL)
 856                 return (1);
 857         if (pread(fd_getfd(*fd), buf, bufsize, 0) != bufsize) {
 858                 fd_close(*fd);
 859                 return (1);
 860         }
 861         return (0);
 862 }
 863 
 864 static void
 865 add_proc(psinfo_t *psinfo)
 866 {
 867         lwp_info_t *lwp;
 868         id_t lwpid;
 869         pid_t pid = psinfo->pr_pid;
 870 
 871         lwpid = psinfo->pr_lwp.pr_lwpid;
 872         if ((lwp = lwpid_get(pid, lwpid)) == NULL)
 873                 lwp = list_add_lwp(&lwps, pid, lwpid);
 874         lwp->li_flags |= LWP_ALIVE | LWP_REPRESENT;
 875         (void) memcpy(&lwp->li_info, psinfo, sizeof (psinfo_t));
 876         lwp->li_info.pr_lwp.pr_pctcpu = lwp->li_info.pr_pctcpu;
 877 }
 878 
 879 static void
 880 add_lwp(psinfo_t *psinfo, lwpsinfo_t *lwpsinfo, int flags)
 881 {
 882         lwp_info_t *lwp;
 883         pid_t pid = psinfo->pr_pid;
 884         id_t lwpid = lwpsinfo->pr_lwpid;
 885 
 886         if ((lwp = lwpid_get(pid, lwpid)) == NULL)
 887                 lwp = list_add_lwp(&lwps, pid, lwpid);
 888         lwp->li_flags &= ~LWP_REPRESENT;
 889         lwp->li_flags |= LWP_ALIVE;
 890         lwp->li_flags |= flags;
 891         (void) memcpy(&lwp->li_info, psinfo,
 892             sizeof (psinfo_t) - sizeof (lwpsinfo_t));
 893         (void) memcpy(&lwp->li_info.pr_lwp, lwpsinfo, sizeof (lwpsinfo_t));
 894 }
 895 
 896 static void
 897 prstat_scandir(DIR *procdir)
 898 {
 899         char *pidstr;
 900         pid_t pid;
 901         id_t lwpid;
 902         size_t entsz;
 903         long nlwps, nent, i;
 904         char *buf, *ptr;
 905 
 906         fds_t *fds;
 907         lwp_info_t *lwp;
 908         dirent_t *direntp;
 909 
 910         prheader_t      header;
 911         psinfo_t        psinfo;
 912         prusage_t       usage;
 913         lwpsinfo_t      *lwpsinfo;
 914         prusage_t       *lwpusage;
 915 
 916         total_procs = 0;
 917         total_lwps = 0;
 918         total_cpu = 0;
 919         total_mem = 0;
 920 
 921         convert_zone(&zone_tbl);
 922         for (rewinddir(procdir); (direntp = readdir(procdir)); ) {
 923                 pidstr = direntp->d_name;
 924                 if (pidstr[0] == '.')   /* skip "." and ".."  */
 925                         continue;
 926                 pid = atoi(pidstr);
 927                 if (pid == 0 || pid == 2 || pid == 3)
 928                         continue;       /* skip sched, pageout and fsflush */
 929                 if (has_element(&pid_tbl, pid) == 0)
 930                         continue;       /* check if we really want this pid */
 931                 fds = fds_get(pid);     /* get ptr to file descriptors */
 932 
 933                 if (read_procfile(&fds->fds_psinfo, pidstr,
 934                     "psinfo", &psinfo, sizeof (psinfo_t)) != 0)
 935                         continue;
 936                 if (!has_uid(&ruid_tbl, psinfo.pr_uid) ||
 937                     !has_uid(&euid_tbl, psinfo.pr_euid) ||
 938                     !has_element(&prj_tbl, psinfo.pr_projid) ||
 939                     !has_element(&tsk_tbl, psinfo.pr_taskid) ||
 940                     !has_zone(&zone_tbl, psinfo.pr_zoneid)) {
 941                         fd_close(fds->fds_psinfo);
 942                         continue;
 943                 }
 944                 nlwps = psinfo.pr_nlwp + psinfo.pr_nzomb;
 945 
 946                 if (nlwps > 1 && (opts.o_outpmode & (OPT_LWPS | OPT_PSETS))) {
 947                         int rep_lwp = 0;
 948 
 949                         if (read_procfile(&fds->fds_lpsinfo, pidstr, "lpsinfo",
 950                             &header, sizeof (prheader_t)) != 0) {
 951                                 fd_close(fds->fds_psinfo);
 952                                 continue;
 953                         }
 954 
 955                         nent = header.pr_nent;
 956                         entsz = header.pr_entsize * nent;
 957                         ptr = buf = Malloc(entsz);
 958                         if (pread(fd_getfd(fds->fds_lpsinfo), buf,
 959                             entsz, sizeof (struct prheader)) != entsz) {
 960                                 fd_close(fds->fds_lpsinfo);
 961                                 fd_close(fds->fds_psinfo);
 962                                 free(buf);
 963                                 continue;
 964                         }
 965 
 966                         nlwps = 0;
 967                         for (i = 0; i < nent; i++, ptr += header.pr_entsize) {
 968                                 /*LINTED ALIGNMENT*/
 969                                 lwpsinfo = (lwpsinfo_t *)ptr;
 970                                 if (!has_element(&cpu_tbl,
 971                                     lwpsinfo->pr_onpro) ||
 972                                     !has_element(&set_tbl,
 973                                     lwpsinfo->pr_bindpset) ||
 974                                     !has_element(&lgr_tbl, lwpsinfo->pr_lgrp))
 975                                         continue;
 976                                 nlwps++;
 977                                 if ((opts.o_outpmode & (OPT_PSETS | OPT_LWPS))
 978                                     == OPT_PSETS) {
 979                                         /*
 980                                          * If one of process's LWPs is bound
 981                                          * to a given processor set, report the
 982                                          * whole process.  We may be doing this
 983                                          * a few times but we'll get an accurate
 984                                          * lwp count in return.
 985                                          */
 986                                         add_proc(&psinfo);
 987                                 } else {
 988                                         if (rep_lwp == 0) {
 989                                                 rep_lwp = 1;
 990                                                 add_lwp(&psinfo, lwpsinfo,
 991                                                     LWP_REPRESENT);
 992                                         } else {
 993                                                 add_lwp(&psinfo, lwpsinfo, 0);
 994                                         }
 995                                 }
 996                         }
 997                         free(buf);
 998                         if (nlwps == 0) {
 999                                 fd_close(fds->fds_lpsinfo);
1000                                 fd_close(fds->fds_psinfo);
1001                                 continue;
1002                         }
1003                 } else {
1004                         if (!has_element(&cpu_tbl, psinfo.pr_lwp.pr_onpro) ||
1005                             !has_element(&set_tbl, psinfo.pr_lwp.pr_bindpset) ||
1006                             !has_element(&lgr_tbl, psinfo.pr_lwp.pr_lgrp)) {
1007                                 fd_close(fds->fds_psinfo);
1008                                 continue;
1009                         }
1010                         add_proc(&psinfo);
1011                 }
1012                 if (!(opts.o_outpmode & OPT_MSACCT)) {
1013                         total_procs++;
1014                         total_lwps += nlwps;
1015                         continue;
1016                 }
1017                 /*
1018                  * Get more information about processes from /proc/pid/usage.
1019                  * If process has more than one lwp, then we may have to
1020                  * also look at the /proc/pid/lusage file.
1021                  */
1022                 if ((opts.o_outpmode & OPT_LWPS) && (nlwps > 1)) {
1023                         if (read_procfile(&fds->fds_lusage, pidstr, "lusage",
1024                             &header, sizeof (prheader_t)) != 0) {
1025                                 fd_close(fds->fds_lpsinfo);
1026                                 fd_close(fds->fds_psinfo);
1027                                 continue;
1028                         }
1029                         nent = header.pr_nent;
1030                         entsz = header.pr_entsize * nent;
1031                         buf = Malloc(entsz);
1032                         if (pread(fd_getfd(fds->fds_lusage), buf,
1033                             entsz, sizeof (struct prheader)) != entsz) {
1034                                 fd_close(fds->fds_lusage);
1035                                 fd_close(fds->fds_lpsinfo);
1036                                 fd_close(fds->fds_psinfo);
1037                                 free(buf);
1038                                 continue;
1039                         }
1040                         for (i = 1, ptr = buf + header.pr_entsize; i < nent;
1041                             i++, ptr += header.pr_entsize) {
1042                                 /*LINTED ALIGNMENT*/
1043                                 lwpusage = (prusage_t *)ptr;
1044                                 lwpid = lwpusage->pr_lwpid;
1045                                 /*
1046                                  * New LWPs created after we read lpsinfo
1047                                  * will be ignored.  Don't want to do
1048                                  * everything all over again.
1049                                  */
1050                                 if ((lwp = lwpid_get(pid, lwpid)) == NULL)
1051                                         continue;
1052                                 lwp_update(lwp, pid, lwpid, lwpusage);
1053                         }
1054                         free(buf);
1055                 } else {
1056                         if (read_procfile(&fds->fds_usage, pidstr, "usage",
1057                             &usage, sizeof (prusage_t)) != 0) {
1058                                 fd_close(fds->fds_lpsinfo);
1059                                 fd_close(fds->fds_psinfo);
1060                                 continue;
1061                         }
1062                         lwpid = psinfo.pr_lwp.pr_lwpid;
1063                         if ((lwp = lwpid_get(pid, lwpid)) == NULL)
1064                                 continue;
1065                         lwp_update(lwp, pid, lwpid, &usage);
1066                 }
1067                 total_procs++;
1068                 total_lwps += nlwps;
1069         }
1070         fd_update();
1071 }
1072 
1073 /*
1074  * This procedure removes all dead lwps from the linked list of all lwps.
1075  * It also creates linked list of ids if necessary.
1076  */
1077 static void
1078 list_refresh(list_t *list)
1079 {
1080         lwp_info_t *lwp, *lwp_next;
1081 
1082         if (!(list->l_type & LT_LWPS))
1083                 return;
1084 
1085         for (lwp = list->l_head; lwp != NULL; ) {
1086                 if (lwp->li_flags & LWP_ALIVE) {
1087                         /*
1088                          * Process all live LWPs.
1089                          * When we're done, mark them as dead.
1090                          * They will be marked "alive" on the next
1091                          * /proc scan if they still exist.
1092                          */
1093                         lwp->li_key = list_getkeyval(list, lwp);
1094                         if (opts.o_outpmode & OPT_USERS)
1095                                 list_update(&users, lwp);
1096                         if (opts.o_outpmode & OPT_TASKS)
1097                                 list_update(&tasks, lwp);
1098                         if (opts.o_outpmode & OPT_PROJECTS)
1099                                 list_update(&projects, lwp);
1100                         if (opts.o_outpmode & OPT_ZONES)
1101                                 list_update(&zones, lwp);
1102                         if (opts.o_outpmode & OPT_LGRP)
1103                                 list_update(&lgroups, lwp);
1104                         lwp->li_flags &= ~LWP_ALIVE;
1105                         lwp = lwp->li_next;
1106 
1107                 } else {
1108                         lwp_next = lwp->li_next;
1109                         list_remove_lwp(&lwps, lwp);
1110                         lwp = lwp_next;
1111                 }
1112         }
1113 }
1114 
1115 static void
1116 curses_on()
1117 {
1118         if ((opts.o_outpmode & OPT_TERMCAP) && (is_curses_on == FALSE)) {
1119                 (void) initscr();
1120                 (void) nonl();
1121                 (void) putp(t_smcup);
1122                 is_curses_on = TRUE;
1123         }
1124 }
1125 
1126 static void
1127 curses_off()
1128 {
1129         if ((is_curses_on == TRUE) && (opts.o_outpmode & OPT_TERMCAP)) {
1130                 (void) putp(t_rmcup);
1131                 (void) endwin();
1132                 is_curses_on = FALSE;
1133         }
1134         (void) fflush(stdout);
1135 }
1136 
1137 static int
1138 nlines()
1139 {
1140         struct winsize ws;
1141         char *envp;
1142         int n;
1143         if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1) {
1144                 if (ws.ws_row > 0)
1145                         return (ws.ws_row);
1146         }
1147         if (envp = getenv("LINES")) {
1148                 if ((n = Atoi(envp)) > 0) {
1149                         opts.o_outpmode &= ~OPT_USEHOME;
1150                         return (n);
1151                 }
1152         }
1153         return (-1);
1154 }
1155 
1156 static void
1157 setmovecur()
1158 {
1159         int i, n;
1160         if ((opts.o_outpmode & OPT_FULLSCREEN) &&
1161             (opts.o_outpmode & OPT_USEHOME)) {
1162                 movecur = t_home;
1163                 return;
1164         }
1165         if (opts.o_outpmode & OPT_SPLIT) {
1166                 if (opts.o_ntop == 0)
1167                         n = opts.o_nbottom + 1;
1168                 else
1169                         n = opts.o_ntop + opts.o_nbottom + 2;
1170         } else {
1171                 if (opts.o_outpmode & OPT_USERS)
1172                         n = opts.o_nbottom + 1;
1173                 else
1174                         n = opts.o_ntop + 1;
1175         }
1176         if (((opts.o_outpmode & OPT_UDATE) || (opts.o_outpmode & OPT_DDATE)))
1177                 n++;
1178 
1179         if (movecur != NULL && movecur != empty_string && movecur != t_home)
1180                 free(movecur);
1181         movecur = Zalloc(strlen(t_up) * (n + 5));
1182         for (i = 0; i <= n; i++)
1183                 (void) strcat(movecur, t_up);
1184 }
1185 
1186 static int
1187 setsize()
1188 {
1189         static int oldn = 0;
1190         int n;
1191 
1192         if (opts.o_outpmode & OPT_FULLSCREEN) {
1193                 n = nlines();
1194                 if (n == oldn)
1195                         return (0);
1196                 oldn = n;
1197                 if (n == -1) {
1198                         opts.o_outpmode &= ~OPT_USEHOME;
1199                         setmovecur();           /* set default window size */
1200                         return (1);
1201                 }
1202                 n = n - 3;      /* minus header, total and cursor lines */
1203                 if ((opts.o_outpmode & OPT_UDATE) ||
1204                     (opts.o_outpmode & OPT_DDATE))
1205                         n--;    /* minus timestamp */
1206                 if (n < 1)
1207                         Die(gettext("window is too small (try -n)\n"));
1208                 if (opts.o_outpmode & OPT_SPLIT) {
1209                         if (n < 8) {
1210                                 Die(gettext("window is too small (try -n)\n"));
1211                         } else {
1212                                 opts.o_ntop = (n / 4) * 3;
1213                                 opts.o_nbottom = n - 1 - opts.o_ntop;
1214                         }
1215                 } else {
1216                         if (opts.o_outpmode & OPT_USERS)
1217                                 opts.o_nbottom = n;
1218                         else
1219                                 opts.o_ntop = n;
1220                 }
1221         }
1222         setmovecur();
1223         return (1);
1224 }
1225 
1226 static void
1227 ldtermcap()
1228 {
1229         int err;
1230         if (setupterm(NULL, STDIN_FILENO, &err) == ERR) {
1231                 switch (err) {
1232                 case 0:
1233                         Warn(gettext("failed to load terminal info, "
1234                             "defaulting to -c option\n"));
1235                         break;
1236                 case -1:
1237                         Warn(gettext("terminfo database not found, "
1238                             "defaulting to -c option\n"));
1239                         break;
1240                 default:
1241                         Warn(gettext("failed to initialize terminal, "
1242                             "defaulting to -c option\n"));
1243                 }
1244                 opts.o_outpmode &= ~OPT_TERMCAP;
1245                 t_up = t_eol = t_smcup = t_rmcup = movecur = empty_string;
1246                 t_ulon = t_uloff = empty_string;
1247                 return;
1248         }
1249         t_ulon  = tigetstr("smul");
1250         t_uloff = tigetstr("rmul");
1251         t_up    = tigetstr("cuu1");
1252         t_eol   = tigetstr("el");
1253         t_smcup = tigetstr("smcup");
1254         t_rmcup = tigetstr("rmcup");
1255         t_home  = tigetstr("home");
1256         if ((t_up == (char *)-1) || (t_eol == (char *)-1) ||
1257             (t_smcup == (char *)-1) || (t_rmcup == (char *)-1)) {
1258                 opts.o_outpmode &= ~OPT_TERMCAP;
1259                 t_up = t_eol = t_smcup = t_rmcup = movecur = empty_string;
1260                 return;
1261         }
1262         if (t_up == NULL || t_eol == NULL) {
1263                 opts.o_outpmode &= ~OPT_TERMCAP;
1264                 t_eol = t_up = movecur = empty_string;
1265                 return;
1266         }
1267         if (t_ulon == (char *)-1 || t_uloff == (char *)-1 ||
1268             t_ulon == NULL || t_uloff == NULL) {
1269                 t_ulon = t_uloff = empty_string;  /* can live without it */
1270         }
1271         if (t_smcup == NULL || t_rmcup == NULL)
1272                 t_smcup = t_rmcup = empty_string;
1273         if (t_home == (char *)-1 || t_home == NULL) {
1274                 opts.o_outpmode &= ~OPT_USEHOME;
1275                 t_home = empty_string;
1276         }
1277 }
1278 
1279 static void
1280 sig_handler(int sig)
1281 {
1282         switch (sig) {
1283         case SIGTSTP:   sigtstp = 1;
1284                         break;
1285         case SIGWINCH:  sigwinch = 1;
1286                         break;
1287         case SIGINT:
1288         case SIGTERM:   sigterm = 1;
1289                         break;
1290         }
1291 }
1292 
1293 static void
1294 set_signals()
1295 {
1296         (void) signal(SIGTSTP, sig_handler);
1297         (void) signal(SIGINT, sig_handler);
1298         (void) signal(SIGTERM, sig_handler);
1299         if (opts.o_outpmode & OPT_FULLSCREEN)
1300                 (void) signal(SIGWINCH, sig_handler);
1301 }
1302 
1303 static void
1304 fill_table(table_t *table, char *arg, char option)
1305 {
1306         char *p = strtok(arg, ", ");
1307 
1308         if (p == NULL)
1309                 Die(gettext("invalid argument for -%c\n"), option);
1310 
1311         add_element(table, (long)Atoi(p));
1312         while (p = strtok(NULL, ", "))
1313                 add_element(table, (long)Atoi(p));
1314 }
1315 
1316 static void
1317 fill_prj_table(char *arg)
1318 {
1319         projid_t projid;
1320         char *p = strtok(arg, ", ");
1321 
1322         if (p == NULL)
1323                 Die(gettext("invalid argument for -j\n"));
1324 
1325         if ((projid = getprojidbyname(p)) == -1)
1326                 projid = Atoi(p);
1327         add_element(&prj_tbl, (long)projid);
1328 
1329         while (p = strtok(NULL, ", ")) {
1330                 if ((projid = getprojidbyname(p)) == -1)
1331                         projid = Atoi(p);
1332                 add_element(&prj_tbl, (long)projid);
1333         }
1334 }
1335 
1336 static void
1337 fill_set_table(char *arg)
1338 {
1339         char *p = strtok(arg, ", ");
1340         psetid_t id;
1341 
1342         if (p == NULL)
1343                 Die(gettext("invalid argument for -C\n"));
1344 
1345         if ((id = Atoi(p)) == 0)
1346                 id = PS_NONE;
1347         add_element(&set_tbl, id);
1348         while (p = strtok(NULL, ", ")) {
1349                 if ((id = Atoi(p)) == 0)
1350                         id = PS_NONE;
1351                 if (!has_element(&set_tbl, id))
1352                         add_element(&set_tbl, id);
1353         }
1354 }
1355 
1356 static void
1357 Exit()
1358 {
1359         curses_off();
1360         list_clear(&lwps);
1361         list_clear(&users);
1362         list_clear(&tasks);
1363         list_clear(&projects);
1364         list_clear(&zones);
1365         fd_exit();
1366 }
1367 
1368 
1369 int
1370 main(int argc, char **argv)
1371 {
1372         DIR *procdir;
1373         char *p;
1374         char *sortk = "cpu";    /* default sort key */
1375         int opt;
1376         int timeout;
1377         struct pollfd pollset;
1378         char key;
1379 
1380         (void) setlocale(LC_ALL, "");
1381         (void) textdomain(TEXT_DOMAIN);
1382         Progname(argv[0]);
1383         lwpid_init();
1384         fd_init(Setrlimit());
1385 
1386         pagesize = sysconf(_SC_PAGESIZE);
1387 
1388         while ((opt = getopt(argc, argv,
1389             "vcd:HmarRLtu:U:n:p:C:P:h:s:S:j:k:TJWz:Z")) != (int)EOF) {
1390                 switch (opt) {
1391                 case 'r':
1392                         opts.o_outpmode |= OPT_NORESOLVE;
1393                         break;
1394                 case 'R':
1395                         opts.o_outpmode |= OPT_REALTIME;
1396                         break;
1397                 case 'c':
1398                         opts.o_outpmode &= ~OPT_TERMCAP;
1399                         opts.o_outpmode &= ~OPT_FULLSCREEN;
1400                         break;
1401                 case 'd':
1402                         if (optarg) {
1403                                 if (*optarg == 'u')
1404                                         opts.o_outpmode |= OPT_UDATE;
1405                                 else if (*optarg == 'd')
1406                                         opts.o_outpmode |= OPT_DDATE;
1407                                 else
1408                                         Usage();
1409                         } else {
1410                                 Usage();
1411                         }
1412                         break;
1413                 case 'h':
1414                         fill_table(&lgr_tbl, optarg, 'h');
1415                         break;
1416                 case 'H':
1417                         opts.o_outpmode |= OPT_LGRP;
1418                         break;
1419                 case 'm':
1420                 case 'v':
1421                         opts.o_outpmode &= ~OPT_PSINFO;
1422                         opts.o_outpmode |=  OPT_MSACCT;
1423                         break;
1424                 case 't':
1425                         opts.o_outpmode &= ~OPT_PSINFO;
1426                         opts.o_outpmode |= OPT_USERS;
1427                         break;
1428                 case 'a':
1429                         opts.o_outpmode |= OPT_SPLIT | OPT_USERS;
1430                         break;
1431                 case 'T':
1432                         opts.o_outpmode |= OPT_SPLIT | OPT_TASKS;
1433                         break;
1434                 case 'J':
1435                         opts.o_outpmode |= OPT_SPLIT | OPT_PROJECTS;
1436                         break;
1437                 case 'n':
1438                         if ((p = strtok(optarg, ",")) == NULL)
1439                                 Die(gettext("invalid argument for -n\n"));
1440                         opts.o_ntop = Atoi(p);
1441                         if (p = strtok(NULL, ","))
1442                                 opts.o_nbottom = Atoi(p);
1443                         else if (opts.o_ntop == 0)
1444                                 opts.o_nbottom = 5;
1445                         opts.o_outpmode &= ~OPT_FULLSCREEN;
1446                         break;
1447                 case 's':
1448                         opts.o_sortorder = -1;
1449                         sortk = optarg;
1450                         break;
1451                 case 'S':
1452                         opts.o_sortorder = 1;
1453                         sortk = optarg;
1454                         break;
1455                 case 'u':
1456                         if ((p = strtok(optarg, ", ")) == NULL)
1457                                 Die(gettext("invalid argument for -u\n"));
1458                         add_uid(&euid_tbl, p);
1459                         while (p = strtok(NULL, ", "))
1460                                 add_uid(&euid_tbl, p);
1461                         break;
1462                 case 'U':
1463                         if ((p = strtok(optarg, ", ")) == NULL)
1464                                 Die(gettext("invalid argument for -U\n"));
1465                         add_uid(&ruid_tbl, p);
1466                         while (p = strtok(NULL, ", "))
1467                                 add_uid(&ruid_tbl, p);
1468                         break;
1469                 case 'p':
1470                         fill_table(&pid_tbl, optarg, 'p');
1471                         break;
1472                 case 'C':
1473                         fill_set_table(optarg);
1474                         opts.o_outpmode |= OPT_PSETS;
1475                         break;
1476                 case 'P':
1477                         fill_table(&cpu_tbl, optarg, 'P');
1478                         break;
1479                 case 'k':
1480                         fill_table(&tsk_tbl, optarg, 'k');
1481                         break;
1482                 case 'j':
1483                         fill_prj_table(optarg);
1484                         break;
1485                 case 'L':
1486                         opts.o_outpmode |= OPT_LWPS;
1487                         break;
1488                 case 'W':
1489                         opts.o_outpmode |= OPT_TRUNC;
1490                         break;
1491                 case 'z':
1492                         if ((p = strtok(optarg, ", ")) == NULL)
1493                                 Die(gettext("invalid argument for -z\n"));
1494                         add_zone(&zone_tbl, p);
1495                         while (p = strtok(NULL, ", "))
1496                                 add_zone(&zone_tbl, p);
1497                         break;
1498                 case 'Z':
1499                         opts.o_outpmode |= OPT_SPLIT | OPT_ZONES;
1500                         break;
1501                 default:
1502                         Usage();
1503                 }
1504         }
1505 
1506         (void) atexit(Exit);
1507         if ((opts.o_outpmode & OPT_USERS) &&
1508             !(opts.o_outpmode & OPT_SPLIT))
1509                 opts.o_nbottom = opts.o_ntop;
1510         if (!(opts.o_outpmode & OPT_SPLIT) && opts.o_ntop == 0)
1511                 Die(gettext("invalid argument for -n\n"));
1512         if (opts.o_nbottom == 0)
1513                 Die(gettext("invalid argument for -n\n"));
1514         if (!(opts.o_outpmode & OPT_SPLIT) && (opts.o_outpmode & OPT_USERS) &&
1515             ((opts.o_outpmode & (OPT_PSINFO | OPT_MSACCT))))
1516                 Die(gettext("-t option cannot be used with -v or -m\n"));
1517 
1518         if ((opts.o_outpmode & OPT_SPLIT) && (opts.o_outpmode & OPT_USERS) &&
1519             !((opts.o_outpmode & (OPT_PSINFO | OPT_MSACCT))))
1520                 Die(gettext("-t option cannot be used with "
1521                     "-a, -J, -T or -Z\n"));
1522 
1523         if ((opts.o_outpmode & OPT_USERS) &&
1524             (opts.o_outpmode & (OPT_TASKS | OPT_PROJECTS | OPT_ZONES)))
1525                 Die(gettext("-a option cannot be used with "
1526                     "-t, -J, -T or -Z\n"));
1527 
1528         if (((opts.o_outpmode & OPT_TASKS) &&
1529             (opts.o_outpmode & (OPT_PROJECTS|OPT_ZONES))) ||
1530             ((opts.o_outpmode & OPT_PROJECTS) &&
1531             (opts.o_outpmode & (OPT_TASKS|OPT_ZONES)))) {
1532                 Die(gettext(
1533                     "-J, -T and -Z options are mutually exclusive\n"));
1534         }
1535 
1536         /*
1537          * There is not enough space to combine microstate information and
1538          * lgroup information and still fit in 80-column output.
1539          */
1540         if ((opts.o_outpmode & OPT_LGRP) && (opts.o_outpmode & OPT_MSACCT)) {
1541                 Die(gettext("-H and -m options are mutually exclusive\n"));
1542         }
1543 
1544         if (argc > optind)
1545                 opts.o_interval = Atoi(argv[optind++]);
1546         if (argc > optind)
1547                 opts.o_count = Atoi(argv[optind++]);
1548         if (opts.o_count == 0)
1549                 Die(gettext("invalid counter value\n"));
1550         if (argc > optind)
1551                 Usage();
1552         if (opts.o_outpmode & OPT_REALTIME)
1553                 Priocntl("RT");
1554         if (isatty(STDOUT_FILENO) == 1 && isatty(STDIN_FILENO))
1555                 opts.o_outpmode |= OPT_TTY;     /* interactive */
1556         if (!(opts.o_outpmode & OPT_TTY)) {
1557                 opts.o_outpmode &= ~OPT_TERMCAP; /* no termcap for pipes */
1558                 opts.o_outpmode &= ~OPT_FULLSCREEN;
1559         }
1560         if (opts.o_outpmode & OPT_TERMCAP)
1561                 ldtermcap();            /* can turn OPT_TERMCAP off */
1562         if (opts.o_outpmode & OPT_TERMCAP)
1563                 (void) setsize();
1564         list_alloc(&lwps, opts.o_ntop);
1565         list_alloc(&users, opts.o_nbottom);
1566         list_alloc(&tasks, opts.o_nbottom);
1567         list_alloc(&projects, opts.o_nbottom);
1568         list_alloc(&zones, opts.o_nbottom);
1569         list_alloc(&lgroups, opts.o_nbottom);
1570         list_setkeyfunc(sortk, &opts, &lwps, LT_LWPS);
1571         list_setkeyfunc(NULL, &opts, &users, LT_USERS);
1572         list_setkeyfunc(NULL, &opts, &tasks, LT_TASKS);
1573         list_setkeyfunc(NULL, &opts, &projects, LT_PROJECTS);
1574         list_setkeyfunc(NULL, &opts, &zones, LT_ZONES);
1575         list_setkeyfunc(NULL, &opts, &lgroups, LT_LGRPS);
1576         if (opts.o_outpmode & OPT_TERMCAP)
1577                 curses_on();
1578         if ((procdir = opendir("/proc")) == NULL)
1579                 Die(gettext("cannot open /proc directory\n"));
1580         if (opts.o_outpmode & OPT_TTY) {
1581                 (void) printf(gettext("Please wait...\r"));
1582                 if (!(opts.o_outpmode & OPT_TERMCAP))
1583                         (void) putchar('\n');
1584                 (void) fflush(stdout);
1585         }
1586         set_signals();
1587         pollset.fd = STDIN_FILENO;
1588         pollset.events = POLLIN;
1589         timeout = opts.o_interval * MILLISEC;
1590 
1591         /*
1592          * main program loop
1593          */
1594         do {
1595                 if (sigterm == 1)
1596                         break;
1597                 if (sigtstp == 1) {
1598                         curses_off();
1599                         (void) signal(SIGTSTP, SIG_DFL);
1600                         (void) kill(0, SIGTSTP);
1601                         /*
1602                          * prstat stops here until it receives SIGCONT signal.
1603                          */
1604                         sigtstp = 0;
1605                         (void) signal(SIGTSTP, sig_handler);
1606                         curses_on();
1607                         print_movecur = FALSE;
1608                         if (opts.o_outpmode & OPT_FULLSCREEN)
1609                                 sigwinch = 1;
1610                 }
1611                 if (sigwinch == 1) {
1612                         if (setsize() == 1) {
1613                                 list_free(&lwps);
1614                                 list_free(&users);
1615                                 list_free(&tasks);
1616                                 list_free(&projects);
1617                                 list_free(&zones);
1618                                 list_alloc(&lwps, opts.o_ntop);
1619                                 list_alloc(&users, opts.o_nbottom);
1620                                 list_alloc(&tasks, opts.o_nbottom);
1621                                 list_alloc(&projects, opts.o_nbottom);
1622                                 list_alloc(&zones, opts.o_nbottom);
1623                         }
1624                         sigwinch = 0;
1625                         (void) signal(SIGWINCH, sig_handler);
1626                 }
1627                 prstat_scandir(procdir);
1628                 list_refresh(&lwps);
1629                 if (print_movecur)
1630                         (void) putp(movecur);
1631                 print_movecur = TRUE;
1632                 if ((opts.o_outpmode & OPT_PSINFO) ||
1633                     (opts.o_outpmode & OPT_MSACCT)) {
1634                         list_sort(&lwps);
1635                         list_print(&lwps);
1636                 }
1637                 if (opts.o_outpmode & OPT_USERS) {
1638                         list_getsize(&users);
1639                         list_sort(&users);
1640                         list_print(&users);
1641                         list_clear(&users);
1642                 }
1643                 if (opts.o_outpmode & OPT_TASKS) {
1644                         list_getsize(&tasks);
1645                         list_sort(&tasks);
1646                         list_print(&tasks);
1647                         list_clear(&tasks);
1648                 }
1649                 if (opts.o_outpmode & OPT_PROJECTS) {
1650                         list_getsize(&projects);
1651                         list_sort(&projects);
1652                         list_print(&projects);
1653                         list_clear(&projects);
1654                 }
1655                 if (opts.o_outpmode & OPT_ZONES) {
1656                         list_getsize(&zones);
1657                         list_sort(&zones);
1658                         list_print(&zones);
1659                         list_clear(&zones);
1660                 }
1661                 if (opts.o_count == 1)
1662                         break;
1663                 /*
1664                  * If poll() returns -1 and sets errno to EINTR here because
1665                  * the process received a signal, it is Ok to abort this
1666                  * timeout and loop around because we check the signals at the
1667                  * top of the loop.
1668                  */
1669                 if (opts.o_outpmode & OPT_TTY) {
1670                         if (poll(&pollset, (nfds_t)1, timeout) > 0) {
1671                                 if (read(STDIN_FILENO, &key, 1) == 1) {
1672                                         if (tolower(key) == 'q')
1673                                                 break;
1674                                 }
1675                         }
1676                 } else {
1677                         (void) sleep(opts.o_interval);
1678                 }
1679         } while (opts.o_count == (-1) || --opts.o_count);
1680 
1681         if (opts.o_outpmode & OPT_TTY)
1682                 (void) putchar('\r');
1683         return (0);
1684 }