1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if 0 33 #endif 34 35 #include <sys/cdefs.h> 36 /* 37 * Pigs display from Bill Reeves at Lucasfilm 38 */ 39 40 #include <sys/param.h> 41 #include <sys/proc.h> 42 #include <sys/sysctl.h> 43 #include <sys/time.h> 44 #include <sys/user.h> 45 46 #include <curses.h> 47 #include <math.h> 48 #include <pwd.h> 49 #include <stdlib.h> 50 51 #include "systat.h" 52 #include "extern.h" 53 54 int compar(const void *, const void *); 55 56 static int nproc; 57 static struct p_times { 58 float pt_pctcpu; 59 struct kinfo_proc *pt_kp; 60 } *pt = NULL; 61 62 static int fscale; 63 static double lccpu; 64 65 WINDOW * 66 openpigs(void) 67 { 68 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 69 } 70 71 void 72 closepigs(WINDOW *w) 73 { 74 if (w == NULL) 75 return; 76 wclear(w); 77 wrefresh(w); 78 delwin(w); 79 } 80 81 void 82 showpigs(void) 83 { 84 int i, j, y, k; 85 const char *uname, *pname; 86 char pidname[30]; 87 88 if (nproc == 0) 89 return; 90 91 qsort(pt, nproc, sizeof (struct p_times), compar); 92 y = 1; 93 i = nproc; 94 if (i > getmaxy(wnd)-2) 95 i = getmaxy(wnd)-2; 96 for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) { 97 uname = user_from_uid(pt[k].pt_kp->ki_uid, 0); 98 pname = pt[k].pt_kp->ki_comm; 99 wmove(wnd, y, 0); 100 wclrtoeol(wnd); 101 mvwaddstr(wnd, y, 0, uname); 102 snprintf(pidname, sizeof(pidname), "%10.10s", pname); 103 mvwaddstr(wnd, y, 9, pidname); 104 wmove(wnd, y, 20); 105 for (j = pt[k].pt_pctcpu * 50 + 0.5; j > 0; j--) 106 waddch(wnd, 'X'); 107 } 108 wmove(wnd, y, 0); wclrtobot(wnd); 109 } 110 111 int 112 initpigs(void) 113 { 114 fixpt_t ccpu; 115 size_t len; 116 int err; 117 118 len = sizeof(ccpu); 119 err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0); 120 if (err || len != sizeof(ccpu)) { 121 perror("kern.ccpu"); 122 return (0); 123 } 124 125 len = sizeof(fscale); 126 err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0); 127 if (err || len != sizeof(fscale)) { 128 perror("kern.fscale"); 129 return (0); 130 } 131 132 lccpu = log((double) ccpu / fscale); 133 134 return(1); 135 } 136 137 void 138 fetchpigs(void) 139 { 140 int i; 141 float ftime; 142 float *pctp; 143 struct kinfo_proc *kpp; 144 static int maxnproc = 0; 145 146 if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) { 147 error("%s", kvm_geterr(kd)); 148 nproc = 0; 149 return; 150 } 151 if (nproc > maxnproc) { 152 if ((pt = realloc(pt, nproc * sizeof(*pt))) == NULL) { 153 error("Out of memory"); 154 die(0); 155 } 156 maxnproc = nproc; 157 } 158 /* 159 * calculate %cpu for each proc 160 */ 161 for (i = 0; i < nproc; i++) { 162 pt[i].pt_kp = &kpp[i]; 163 pctp = &pt[i].pt_pctcpu; 164 ftime = kpp[i].ki_swtime; 165 if (ftime == 0 || (kpp[i].ki_flag & P_INMEM) == 0) 166 *pctp = 0; 167 else 168 *pctp = ((double) kpp[i].ki_pctcpu / 169 fscale) / (1.0 - exp(ftime * lccpu)); 170 } 171 } 172 173 void 174 labelpigs(void) 175 { 176 wmove(wnd, 0, 0); 177 wclrtoeol(wnd); 178 mvwaddstr(wnd, 0, 20, 179 "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100"); 180 } 181 182 int 183 compar(const void *a, const void *b) 184 { 185 return (((const struct p_times *) a)->pt_pctcpu > 186 ((const struct p_times *) b)->pt_pctcpu)? -1: 1; 187 } 188