1char *copyright = 2 "Copyright (c) 1984 through 1996, William LeFebvre"; 3 4/* 5 * Top users/processes display for Unix 6 * Version 3 7 * 8 * This program may be freely redistributed, 9 * but this entire comment MUST remain intact. 10 * 11 * Copyright (c) 1984, 1989, William LeFebvre, Rice University 12 * Copyright (c) 1989 - 1994, William LeFebvre, Northwestern University 13 * Copyright (c) 1994, 1995, William LeFebvre, Argonne National Laboratory 14 * Copyright (c) 1996, William LeFebvre, Group sys Consulting 15 * 16 * $FreeBSD$ 17 */ 18 19/* 20 * See the file "Changes" for information on version-to-version changes. 21 */ 22 23/* 24 * This file contains "main" and other high-level routines. 25 */ 26 27/* 28 * The following preprocessor variables, when defined, are used to 29 * distinguish between different Unix implementations: 30 * 31 * SIGHOLD - use SVR4 sighold function when defined 32 * SIGRELSE - use SVR4 sigrelse function when defined 33 * FD_SET - macros FD_SET and FD_ZERO are used when defined 34 */ 35 36#include "os.h" 37#include <errno.h> 38#include <signal.h> 39#include <setjmp.h> 40#include <ctype.h> 41#include <sys/jail.h> 42#include <sys/time.h> 43#include <jail.h> 44 45/* includes specific to top */ 46#include "display.h" /* interface to display package */ 47#include "screen.h" /* interface to screen package */ 48#include "top.h" 49#include "top.local.h" 50#include "boolean.h" 51#include "machine.h" 52#include "utils.h" 53 54/* Size of the stdio buffer given to stdout */ 55#define Buffersize 2048 56 57/* The buffer that stdio will use */ 58char stdoutbuf[Buffersize]; 59 60/* build Signal masks */ 61#define Smask(s) (1 << ((s) - 1)) 62 63/* for getopt: */ 64extern int optind; 65extern char *optarg; 66 67/* imported from screen.c */ 68extern int overstrike; 69 70static int fmt_flags = 0; 71int pcpu_stats = No; 72 73/* signal handling routines */ 74sigret_t leave(); 75sigret_t tstop(); 76#ifdef SIGWINCH 77sigret_t winch(); 78#endif 79 80volatile sig_atomic_t leaveflag; 81volatile sig_atomic_t tstopflag; 82volatile sig_atomic_t winchflag; 83 84/* internal routines */ 85void quit(); 86 87/* values which need to be accessed by signal handlers */ 88static int max_topn; /* maximum displayable processes */ 89 90/* miscellaneous things */ 91struct process_select ps; 92char *myname = "top"; 93jmp_buf jmp_int; 94 95/* routines that don't return int */ 96 97char *username(); 98char *ctime(); 99char *kill_procs(); 100char *renice_procs(); 101 102#ifdef ORDER 103extern int (*compares[])(); 104#else 105extern int proc_compare(); 106extern int io_compare(); 107#endif 108time_t time(); 109 110caddr_t get_process_info(); 111 112/* different routines for displaying the user's identification */ 113/* (values assigned to get_userid) */ 114char *username(); 115char *itoa7(); 116 117/* display routines that need to be predeclared */ 118int i_loadave(); 119int u_loadave(); 120int i_procstates(); 121int u_procstates(); 122int i_cpustates(); 123int u_cpustates(); 124int i_memory(); 125int u_memory(); 126int i_arc(); 127int u_arc(); 128int i_swap(); 129int u_swap(); 130int i_message(); 131int u_message(); 132int i_header(); 133int u_header(); 134int i_process(); 135int u_process(); 136 137/* pointers to display routines */ 138int (*d_loadave)() = i_loadave; 139int (*d_procstates)() = i_procstates; 140int (*d_cpustates)() = i_cpustates; 141int (*d_memory)() = i_memory; 142int (*d_arc)() = i_arc; 143int (*d_swap)() = i_swap; 144int (*d_message)() = i_message; 145int (*d_header)() = i_header; 146int (*d_process)() = i_process; 147 148 149main(argc, argv) 150 151int argc; 152char *argv[]; 153 154{ 155 register int i; 156 register int active_procs; 157 register int change; 158 159 struct system_info system_info; 160 struct statics statics; 161 caddr_t processes; 162 163 static char tempbuf1[50]; 164 static char tempbuf2[50]; 165 int old_sigmask; /* only used for BSD-style signals */ 166 int topn = Default_TOPN; 167 int delay = Default_DELAY; 168 int displays = 0; /* indicates unspecified */ 169 int sel_ret = 0; 170 time_t curr_time; 171 char *(*get_userid)() = username; 172 char *uname_field = "USERNAME"; 173 char *header_text; 174 char *env_top; 175 char **preset_argv; 176 int preset_argc = 0; 177 char **av; 178 int ac; 179 char dostates = No; 180 char do_unames = Yes; 181 char interactive = Maybe; 182 char warnings = 0; 183#if Default_TOPN == Infinity 184 char topn_specified = No; 185#endif 186 char ch; 187 char *iptr; 188 char no_command = 1; 189 struct timeval timeout; 190#ifdef ORDER 191 char *order_name = NULL; 192 int order_index = 0; 193#endif 194#ifndef FD_SET 195 /* FD_SET and friends are not present: fake it */ 196 typedef int fd_set; 197#define FD_ZERO(x) (*(x) = 0) 198#define FD_SET(f, x) (*(x) = 1<<f) 199#endif 200 fd_set readfds; 201 202#ifdef ORDER 203 static char command_chars[] = "\f qh?en#sdkriIutHmSCajzPJo"; 204#else 205 static char command_chars[] = "\f qh?en#sdkriIutHmSCajzPJ"; 206#endif 207/* these defines enumerate the "strchr"s of the commands in command_chars */ 208#define CMD_redraw 0 209#define CMD_update 1 210#define CMD_quit 2 211#define CMD_help1 3 212#define CMD_help2 4 213#define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */ 214#define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */ 215#define CMD_number1 6 216#define CMD_number2 7 217#define CMD_delay 8 218#define CMD_displays 9 219#define CMD_kill 10 220#define CMD_renice 11 221#define CMD_idletog 12 222#define CMD_idletog2 13 223#define CMD_user 14 224#define CMD_selftog 15 225#define CMD_thrtog 16 226#define CMD_viewtog 17 227#define CMD_viewsys 18 228#define CMD_wcputog 19 229#define CMD_showargs 20 230#define CMD_jidtog 21 231#define CMD_kidletog 22 232#define CMD_pcputog 23 233#define CMD_jail 24 234#ifdef ORDER 235#define CMD_order 25 236#endif 237 238 /* set the buffer for stdout */ 239#ifdef DEBUG 240 extern FILE *debug; 241 debug = fopen("debug.run", "w"); 242 setbuffer(stdout, NULL, 0); 243#else 244 setbuffer(stdout, stdoutbuf, Buffersize); 245#endif 246 247 /* get our name */ 248 if (argc > 0) 249 { 250 if ((myname = strrchr(argv[0], '/')) == 0) 251 { 252 myname = argv[0]; 253 } 254 else 255 { 256 myname++; 257 } 258 } 259 260 /* initialize some selection options */ 261 ps.idle = Yes; 262 ps.self = -1; 263 ps.system = No; 264 ps.uid = -1; 265 ps.thread = No; 266 ps.wcpu = 1; 267 ps.jid = -1; 268 ps.jail = No; 269 ps.kidle = Yes; 270 ps.command = NULL; 271 272 /* get preset options from the environment */ 273 if ((env_top = getenv("TOP")) != NULL) 274 { 275 av = preset_argv = argparse(env_top, &preset_argc); 276 ac = preset_argc; 277 278 /* set the dummy argument to an explanatory message, in case 279 getopt encounters a bad argument */ 280 preset_argv[0] = "while processing environment"; 281 } 282 283 /* process options */ 284 do { 285 /* if we're done doing the presets, then process the real arguments */ 286 if (preset_argc == 0) 287 { 288 ac = argc; 289 av = argv; 290 291 /* this should keep getopt happy... */ 292 optind = 1; 293 } 294 295 while ((i = getopt(ac, av, "CSIHPabijJ:nquvzs:d:U:m:o:t")) != EOF) 296 { 297 switch(i) 298 { 299 case 'v': /* show version number */ 300 fprintf(stderr, "%s: version %s\n", 301 myname, version_string()); 302 exit(1); 303 break; 304 305 case 'u': /* toggle uid/username display */ 306 do_unames = !do_unames; 307 break; 308 309 case 'U': /* display only username's processes */ 310 if ((ps.uid = userid(optarg)) == -1) 311 { 312 fprintf(stderr, "%s: unknown user\n", optarg); 313 exit(1); 314 } 315 break; 316 317 case 'S': /* show system processes */ 318 ps.system = !ps.system; 319 break; 320 321 case 'I': /* show idle processes */ 322 ps.idle = !ps.idle; 323 break; 324 325 case 'i': /* go interactive regardless */ 326 interactive = Yes; 327 break; 328 329 case 'n': /* batch, or non-interactive */ 330 case 'b': 331 interactive = No; 332 break; 333 334 case 'a': 335 fmt_flags ^= FMT_SHOWARGS; 336 break; 337 338 case 'd': /* number of displays to show */ 339 if ((i = atoiwi(optarg)) == Invalid || i == 0) 340 { 341 fprintf(stderr, 342 "%s: warning: display count should be positive -- option ignored\n", 343 myname); 344 warnings++; 345 } 346 else 347 { 348 displays = i; 349 } 350 break; 351 352 case 's': 353 if ((delay = atoi(optarg)) < 0 || (delay == 0 && getuid() != 0)) 354 { 355 fprintf(stderr, 356 "%s: warning: seconds delay should be positive -- using default\n", 357 myname); 358 delay = Default_DELAY; 359 warnings++; 360 } 361 break; 362 363 case 'q': /* be quick about it */ 364 /* only allow this if user is really root */ 365 if (getuid() == 0) 366 { 367 /* be very un-nice! */ 368 (void) nice(-20); 369 } 370 else 371 { 372 fprintf(stderr, 373 "%s: warning: `-q' option can only be used by root\n", 374 myname); 375 warnings++; 376 } 377 break; 378 379 case 'm': /* select display mode */ 380 if (strcmp(optarg, "io") == 0) { 381 displaymode = DISP_IO; 382 } else if (strcmp(optarg, "cpu") == 0) { 383 displaymode = DISP_CPU; 384 } else { 385 fprintf(stderr, 386 "%s: warning: `-m' option can only take args " 387 "'io' or 'cpu'\n", 388 myname); 389 exit(1); 390 } 391 break; 392 393 case 'o': /* select sort order */ 394#ifdef ORDER 395 order_name = optarg; 396#else 397 fprintf(stderr, 398 "%s: this platform does not support arbitrary ordering. Sorry.\n", 399 myname); 400 warnings++; 401#endif 402 break; 403 404 case 't': 405 ps.self = (ps.self == -1) ? getpid() : -1; 406 break; 407 408 case 'C': 409 ps.wcpu = !ps.wcpu; 410 break; 411 412 case 'H': 413 ps.thread = !ps.thread; 414 break; 415 416 case 'j': 417 ps.jail = !ps.jail; 418 break; 419 420 case 'J': /* display only jail's processes */ 421 if ((ps.jid = jail_getid(optarg)) == -1) 422 { 423 fprintf(stderr, "%s: unknown jail\n", optarg); 424 exit(1); 425 } 426 ps.jail = 1; 427 break; 428 429 case 'P': 430 pcpu_stats = !pcpu_stats; 431 break; 432 433 case 'z': 434 ps.kidle = !ps.kidle; 435 break; 436 437 default: 438 fprintf(stderr, 439"Top version %s\n" 440"Usage: %s [-abCHIijnPqStuvz] [-d count] [-m io | cpu] [-o field] [-s time]\n" 441" [-J jail] [-U username] [number]\n", 442 version_string(), myname); 443 exit(1); 444 } 445 } 446 447 /* get count of top processes to display (if any) */ 448 if (optind < ac) 449 { 450 if ((topn = atoiwi(av[optind])) == Invalid) 451 { 452 fprintf(stderr, 453 "%s: warning: process display count should be non-negative -- using default\n", 454 myname); 455 warnings++; 456 } 457#if Default_TOPN == Infinity 458 else 459 { 460 topn_specified = Yes; 461 } 462#endif 463 } 464 465 /* tricky: remember old value of preset_argc & set preset_argc = 0 */ 466 i = preset_argc; 467 preset_argc = 0; 468 469 /* repeat only if we really did the preset arguments */ 470 } while (i != 0); 471 472 /* set constants for username/uid display correctly */ 473 if (!do_unames) 474 { 475 uname_field = " UID "; 476 get_userid = itoa7; 477 } 478 479 /* initialize the kernel memory interface */ 480 if (machine_init(&statics, do_unames) == -1) 481 { 482 exit(1); 483 } 484 485#ifdef ORDER 486 /* determine sorting order index, if necessary */ 487 if (order_name != NULL) 488 { 489 if ((order_index = string_index(order_name, statics.order_names)) == -1) 490 { 491 char **pp; 492 493 fprintf(stderr, "%s: '%s' is not a recognized sorting order.\n", 494 myname, order_name); 495 fprintf(stderr, "\tTry one of these:"); 496 pp = statics.order_names; 497 while (*pp != NULL) 498 { 499 fprintf(stderr, " %s", *pp++); 500 } 501 fputc('\n', stderr); 502 exit(1); 503 } 504 } 505#endif 506 507#ifdef no_initialization_needed 508 /* initialize the hashing stuff */ 509 if (do_unames) 510 { 511 init_hash(); 512 } 513#endif 514 515 /* initialize termcap */ 516 init_termcap(interactive); 517 518 /* get the string to use for the process area header */ 519 header_text = format_header(uname_field); 520 521 /* initialize display interface */ 522 if ((max_topn = display_init(&statics)) == -1) 523 { 524 fprintf(stderr, "%s: can't allocate sufficient memory\n", myname); 525 exit(4); 526 } 527 528 /* print warning if user requested more processes than we can display */ 529 if (topn > max_topn) 530 { 531 fprintf(stderr, 532 "%s: warning: this terminal can only display %d processes.\n", 533 myname, max_topn); 534 warnings++; 535 } 536 537 /* adjust for topn == Infinity */ 538 if (topn == Infinity) 539 { 540 /* 541 * For smart terminals, infinity really means everything that can 542 * be displayed, or Largest. 543 * On dumb terminals, infinity means every process in the system! 544 * We only really want to do that if it was explicitly specified. 545 * This is always the case when "Default_TOPN != Infinity". But if 546 * topn wasn't explicitly specified and we are on a dumb terminal 547 * and the default is Infinity, then (and only then) we use 548 * "Nominal_TOPN" instead. 549 */ 550#if Default_TOPN == Infinity 551 topn = smart_terminal ? Largest : 552 (topn_specified ? Largest : Nominal_TOPN); 553#else 554 topn = Largest; 555#endif 556 } 557 558 /* set header display accordingly */ 559 display_header(topn > 0); 560 561 /* determine interactive state */ 562 if (interactive == Maybe) 563 { 564 interactive = smart_terminal; 565 } 566 567 /* if # of displays not specified, fill it in */ 568 if (displays == 0) 569 { 570 displays = smart_terminal ? Infinity : 1; 571 } 572 573 /* hold interrupt signals while setting up the screen and the handlers */ 574#ifdef SIGHOLD 575 sighold(SIGINT); 576 sighold(SIGQUIT); 577 sighold(SIGTSTP); 578#else 579 old_sigmask = sigblock(Smask(SIGINT) | Smask(SIGQUIT) | Smask(SIGTSTP)); 580#endif 581 init_screen(); 582 (void) signal(SIGINT, leave); 583 (void) signal(SIGQUIT, leave); 584 (void) signal(SIGTSTP, tstop); 585#ifdef SIGWINCH 586 (void) signal(SIGWINCH, winch); 587#endif 588#ifdef SIGRELSE 589 sigrelse(SIGINT); 590 sigrelse(SIGQUIT); 591 sigrelse(SIGTSTP); 592#else 593 (void) sigsetmask(old_sigmask); 594#endif 595 if (warnings) 596 { 597 fputs("....", stderr); 598 fflush(stderr); /* why must I do this? */ 599 sleep((unsigned)(3 * warnings)); 600 fputc('\n', stderr); 601 } 602 603restart: 604 605 /* 606 * main loop -- repeat while display count is positive or while it 607 * indicates infinity (by being -1) 608 */ 609 610 while ((displays == -1) || (displays-- > 0)) 611 { 612 int (*compare)(); 613 614 615 /* get the current stats */ 616 get_system_info(&system_info); 617 618#ifdef ORDER 619 compare = compares[order_index]; 620#else 621 if (displaymode == DISP_CPU) 622 compare = proc_compare; 623 else 624 compare = io_compare; 625#endif 626 627 /* get the current set of processes */ 628 processes = 629 get_process_info(&system_info, &ps, compare); 630 631 /* display the load averages */ 632 (*d_loadave)(system_info.last_pid, 633 system_info.load_avg); 634 635 /* display the current time */ 636 /* this method of getting the time SHOULD be fairly portable */ 637 time(&curr_time); 638 i_uptime(&system_info.boottime, &curr_time); 639 i_timeofday(&curr_time); 640 641 /* display process state breakdown */ 642 (*d_procstates)(system_info.p_total, 643 system_info.procstates); 644 645 /* display the cpu state percentage breakdown */ 646 if (dostates) /* but not the first time */ 647 { 648 (*d_cpustates)(system_info.cpustates); 649 } 650 else 651 { 652 /* we'll do it next time */ 653 if (smart_terminal) 654 { 655 z_cpustates(); 656 } 657 else 658 { 659 putchar('\n'); 660 } 661 dostates = Yes; 662 } 663 664 /* display memory stats */ 665 (*d_memory)(system_info.memory); 666 (*d_arc)(system_info.arc); 667 668 /* display swap stats */ 669 (*d_swap)(system_info.swap); 670 671 /* handle message area */ 672 (*d_message)(); 673 674 /* update the header area */ 675 (*d_header)(header_text); 676 677 if (topn > 0) 678 { 679 /* determine number of processes to actually display */ 680 /* this number will be the smallest of: active processes, 681 number user requested, number current screen accomodates */ 682 active_procs = system_info.P_ACTIVE; 683 if (active_procs > topn) 684 { 685 active_procs = topn; 686 } 687 if (active_procs > max_topn) 688 { 689 active_procs = max_topn; 690 } 691 692 /* now show the top "n" processes. */ 693 for (i = 0; i < active_procs; i++) 694 { 695 (*d_process)(i, format_next_process(processes, get_userid, 696 fmt_flags)); 697 } 698 } 699 else 700 { 701 i = 0; 702 } 703 704 /* do end-screen processing */ 705 u_endscreen(i); 706 707 /* now, flush the output buffer */ 708 if (fflush(stdout) != 0) 709 { 710 new_message(MT_standout, " Write error on stdout"); 711 putchar('\r'); 712 quit(1); 713 /*NOTREACHED*/ 714 } 715 716 /* only do the rest if we have more displays to show */ 717 if (displays) 718 { 719 /* switch out for new display on smart terminals */ 720 if (smart_terminal) 721 { 722 if (overstrike) 723 { 724 reset_display(); 725 } 726 else 727 { 728 d_loadave = u_loadave; 729 d_procstates = u_procstates; 730 d_cpustates = u_cpustates; 731 d_memory = u_memory; 732 d_arc = u_arc; 733 d_swap = u_swap; 734 d_message = u_message; 735 d_header = u_header; 736 d_process = u_process; 737 } 738 } 739 740 no_command = Yes; 741 if (!interactive) 742 { 743 sleep(delay); 744 if (leaveflag) { 745 end_screen(); 746 exit(0); 747 } 748 } 749 else while (no_command) 750 { 751 /* assume valid command unless told otherwise */ 752 no_command = No; 753 754 /* set up arguments for select with timeout */ 755 FD_ZERO(&readfds); 756 FD_SET(0, &readfds); /* for standard input */ 757 timeout.tv_sec = delay; 758 timeout.tv_usec = 0; 759 760 if (leaveflag) { 761 end_screen(); 762 exit(0); 763 } 764 765 if (tstopflag) { 766 /* move to the lower left */ 767 end_screen(); 768 fflush(stdout); 769 770 /* default the signal handler action */ 771 (void) signal(SIGTSTP, SIG_DFL); 772 773 /* unblock the signal and send ourselves one */ 774#ifdef SIGRELSE 775 sigrelse(SIGTSTP); 776#else 777 (void) sigsetmask(sigblock(0) & ~(1 << (SIGTSTP - 1))); 778#endif 779 (void) kill(0, SIGTSTP); 780 781 /* reset the signal handler */ 782 (void) signal(SIGTSTP, tstop); 783 784 /* reinit screen */ 785 reinit_screen(); 786 reset_display(); 787 tstopflag = 0; 788 goto restart; 789 } 790 791 if (winchflag) { 792 /* reascertain the screen dimensions */ 793 get_screensize(); 794 795 /* tell display to resize */ 796 max_topn = display_resize(); 797 798 /* reset the signal handler */ 799 (void) signal(SIGWINCH, winch); 800 801 reset_display(); 802 winchflag = 0; 803 goto restart; 804 } 805 806 /* wait for either input or the end of the delay period */ 807 sel_ret = select(2, &readfds, NULL, NULL, &timeout); 808 if (sel_ret < 0 && errno != EINTR) 809 quit(0); 810 if (sel_ret > 0) 811 { 812 int newval; 813 char *errmsg; 814 815 /* something to read -- clear the message area first */ 816 clear_message(); 817 818 /* now read it and convert to command strchr */ 819 /* (use "change" as a temporary to hold strchr) */ 820 if (read(0, &ch, 1) != 1) 821 { 822 /* read error: either 0 or -1 */ 823 new_message(MT_standout, " Read error on stdin"); 824 putchar('\r'); 825 quit(1); 826 /*NOTREACHED*/ 827 } 828 if ((iptr = strchr(command_chars, ch)) == NULL) 829 { 830 if (ch != '\r' && ch != '\n') 831 { 832 /* illegal command */ 833 new_message(MT_standout, " Command not understood"); 834 } 835 putchar('\r'); 836 no_command = Yes; 837 } 838 else 839 { 840 change = iptr - command_chars; 841 if (overstrike && change > CMD_OSLIMIT) 842 { 843 /* error */ 844 new_message(MT_standout, 845 " Command cannot be handled by this terminal"); 846 putchar('\r'); 847 no_command = Yes; 848 } 849 else switch(change) 850 { 851 case CMD_redraw: /* redraw screen */ 852 reset_display(); 853 break; 854 855 case CMD_update: /* merely update display */ 856 /* is the load average high? */ 857 if (system_info.load_avg[0] > LoadMax) 858 { 859 /* yes, go home for visual feedback */ 860 go_home(); 861 fflush(stdout); 862 } 863 break; 864 865 case CMD_quit: /* quit */ 866 quit(0); 867 /*NOTREACHED*/ 868 break; 869 870 case CMD_help1: /* help */ 871 case CMD_help2: 872 reset_display(); 873 clear(); 874 show_help(); 875 standout("Hit any key to continue: "); 876 fflush(stdout); 877 (void) read(0, &ch, 1); 878 break; 879 880 case CMD_errors: /* show errors */ 881 if (error_count() == 0) 882 { 883 new_message(MT_standout, 884 " Currently no errors to report."); 885 putchar('\r'); 886 no_command = Yes; 887 } 888 else 889 { 890 reset_display(); 891 clear(); 892 show_errors(); 893 standout("Hit any key to continue: "); 894 fflush(stdout); 895 (void) read(0, &ch, 1); 896 } 897 break; 898 899 case CMD_number1: /* new number */ 900 case CMD_number2: 901 new_message(MT_standout, 902 "Number of processes to show: "); 903 newval = readline(tempbuf1, 8, Yes); 904 if (newval > -1) 905 { 906 if (newval > max_topn) 907 { 908 new_message(MT_standout | MT_delayed, 909 " This terminal can only display %d processes.", 910 max_topn); 911 putchar('\r'); 912 } 913 914 if (newval == 0) 915 { 916 /* inhibit the header */ 917 display_header(No); 918 } 919 else if (newval > topn && topn == 0) 920 { 921 /* redraw the header */ 922 display_header(Yes); 923 d_header = i_header; 924 } 925 topn = newval; 926 } 927 break; 928 929 case CMD_delay: /* new seconds delay */ 930 new_message(MT_standout, "Seconds to delay: "); 931 if ((i = readline(tempbuf1, 8, Yes)) > -1) 932 { 933 if ((delay = i) == 0 && getuid() != 0) 934 { 935 delay = 1; 936 } 937 } 938 clear_message(); 939 break; 940 941 case CMD_displays: /* change display count */ 942 new_message(MT_standout, 943 "Displays to show (currently %s): ", 944 displays == -1 ? "infinite" : 945 itoa(displays)); 946 if ((i = readline(tempbuf1, 10, Yes)) > 0) 947 { 948 displays = i; 949 } 950 else if (i == 0) 951 { 952 quit(0); 953 } 954 clear_message(); 955 break; 956 957 case CMD_kill: /* kill program */ 958 new_message(0, "kill "); 959 if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) 960 { 961 if ((errmsg = kill_procs(tempbuf2)) != NULL) 962 { 963 new_message(MT_standout, "%s", errmsg); 964 putchar('\r'); 965 no_command = Yes; 966 } 967 } 968 else 969 { 970 clear_message(); 971 } 972 break; 973 974 case CMD_renice: /* renice program */ 975 new_message(0, "renice "); 976 if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) 977 { 978 if ((errmsg = renice_procs(tempbuf2)) != NULL) 979 { 980 new_message(MT_standout, "%s", errmsg); 981 putchar('\r'); 982 no_command = Yes; 983 } 984 } 985 else 986 { 987 clear_message(); 988 } 989 break; 990 991 case CMD_idletog: 992 case CMD_idletog2: 993 ps.idle = !ps.idle; 994 new_message(MT_standout | MT_delayed, 995 " %sisplaying idle processes.", 996 ps.idle ? "D" : "Not d"); 997 putchar('\r'); 998 break; 999 1000 case CMD_selftog: 1001 ps.self = (ps.self == -1) ? getpid() : -1; 1002 new_message(MT_standout | MT_delayed, 1003 " %sisplaying self.", 1004 (ps.self == -1) ? "D" : "Not d"); 1005 putchar('\r'); 1006 break; 1007 1008 case CMD_user: 1009 new_message(MT_standout, 1010 "Username to show (+ for all): "); 1011 if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) 1012 { 1013 if (tempbuf2[0] == '+' && 1014 tempbuf2[1] == '\0') 1015 { 1016 ps.uid = -1; 1017 } 1018 else if ((i = userid(tempbuf2)) == -1) 1019 { 1020 new_message(MT_standout, 1021 " %s: unknown user", tempbuf2); 1022 no_command = Yes; 1023 } 1024 else 1025 { 1026 ps.uid = i; 1027 } 1028 putchar('\r'); 1029 } 1030 else 1031 { 1032 clear_message(); 1033 } 1034 break; 1035 1036 case CMD_thrtog: 1037 ps.thread = !ps.thread; 1038 new_message(MT_standout | MT_delayed, 1039 " Displaying threads %s", 1040 ps.thread ? "separately" : "as a count"); 1041 header_text = format_header(uname_field); 1042 reset_display(); 1043 putchar('\r'); 1044 break; 1045 case CMD_wcputog: 1046 ps.wcpu = !ps.wcpu; 1047 new_message(MT_standout | MT_delayed, 1048 " Displaying %s CPU", 1049 ps.wcpu ? "weighted" : "raw"); 1050 header_text = format_header(uname_field); 1051 reset_display(); 1052 putchar('\r'); 1053 break; 1054 case CMD_viewtog: 1055 if (++displaymode == DISP_MAX) 1056 displaymode = 0; 1057 header_text = format_header(uname_field); 1058 display_header(Yes); 1059 d_header = i_header; 1060 reset_display(); 1061 break; 1062 case CMD_viewsys: 1063 ps.system = !ps.system; 1064 break; 1065 case CMD_showargs: 1066 fmt_flags ^= FMT_SHOWARGS; 1067 break; 1068#ifdef ORDER 1069 case CMD_order: 1070 new_message(MT_standout, 1071 "Order to sort: "); 1072 if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) 1073 { 1074 if ((i = string_index(tempbuf2, statics.order_names)) == -1) 1075 { 1076 new_message(MT_standout, 1077 " %s: unrecognized sorting order", tempbuf2); 1078 no_command = Yes; 1079 } 1080 else 1081 { 1082 order_index = i; 1083 } 1084 putchar('\r'); 1085 } 1086 else 1087 { 1088 clear_message(); 1089 } 1090 break; 1091#endif 1092 case CMD_jidtog: 1093 ps.jail = !ps.jail; 1094 new_message(MT_standout | MT_delayed, 1095 " %sisplaying jail ID.", 1096 ps.jail ? "D" : "Not d"); 1097 header_text = format_header(uname_field); 1098 reset_display(); 1099 putchar('\r'); 1100 break; 1101 1102 case CMD_jail: 1103 new_message(MT_standout, 1104 "Jail to show (+ for all): "); 1105 if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) 1106 { 1107 if (tempbuf2[0] == '+' && 1108 tempbuf2[1] == '\0') 1109 { 1110 ps.jid = -1; 1111 } 1112 else if ((i = jail_getid(tempbuf2)) == -1) 1113 { 1114 new_message(MT_standout, 1115 " %s: unknown jail", tempbuf2); 1116 no_command = Yes; 1117 } 1118 else 1119 { 1120 ps.jid = i; 1121 } 1122 if (ps.jail == 0) { 1123 ps.jail = 1; 1124 new_message(MT_standout | 1125 MT_delayed, " Displaying jail " 1126 "ID."); 1127 header_text = 1128 format_header(uname_field); 1129 reset_display(); 1130 } 1131 putchar('\r'); 1132 } 1133 else 1134 { 1135 clear_message(); 1136 } 1137 break; 1138 1139 case CMD_kidletog: 1140 ps.kidle = !ps.kidle; 1141 new_message(MT_standout | MT_delayed, 1142 " %sisplaying system idle process.", 1143 ps.kidle ? "D" : "Not d"); 1144 putchar('\r'); 1145 break; 1146 case CMD_pcputog: 1147 pcpu_stats = !pcpu_stats; 1148 new_message(MT_standout | MT_delayed, 1149 " Displaying %sCPU statistics.", 1150 pcpu_stats ? "per-" : "global "); 1151 toggle_pcpustats(); 1152 max_topn = display_updatecpus(&statics); 1153 reset_display(); 1154 putchar('\r'); 1155 break; 1156 default: 1157 new_message(MT_standout, " BAD CASE IN SWITCH!"); 1158 putchar('\r'); 1159 } 1160 } 1161 1162 /* flush out stuff that may have been written */ 1163 fflush(stdout); 1164 } 1165 } 1166 } 1167 } 1168 1169#ifdef DEBUG 1170 fclose(debug); 1171#endif 1172 quit(0); 1173 /*NOTREACHED*/ 1174} 1175 1176/* 1177 * reset_display() - reset all the display routine pointers so that entire 1178 * screen will get redrawn. 1179 */ 1180 1181reset_display() 1182 1183{ 1184 d_loadave = i_loadave; 1185 d_procstates = i_procstates; 1186 d_cpustates = i_cpustates; 1187 d_memory = i_memory; 1188 d_arc = i_arc; 1189 d_swap = i_swap; 1190 d_message = i_message; 1191 d_header = i_header; 1192 d_process = i_process; 1193} 1194 1195/* 1196 * signal handlers 1197 */ 1198 1199sigret_t leave() /* exit under normal conditions -- INT handler */ 1200 1201{ 1202 leaveflag = 1; 1203} 1204 1205sigret_t tstop(i) /* SIGTSTP handler */ 1206 1207int i; 1208 1209{ 1210 tstopflag = 1; 1211} 1212 1213#ifdef SIGWINCH 1214sigret_t winch(i) /* SIGWINCH handler */ 1215 1216int i; 1217 1218{ 1219 winchflag = 1; 1220} 1221#endif 1222 1223void quit(status) /* exit under duress */ 1224 1225int status; 1226 1227{ 1228 end_screen(); 1229 exit(status); 1230 /*NOTREACHED*/ 1231} 1232