1 /*- 2 * Copyright (c) 1980, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)swap.c 8.3 (Berkeley) 4/29/95"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 /* 43 * swapinfo - based on a program of the same name by Kevin Lahey 44 */ 45 46 #include <sys/param.h> 47 #include <sys/ioctl.h> 48 #include <sys/stat.h> 49 50 #include <kvm.h> 51 #include <nlist.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <unistd.h> 55 #include <string.h> 56 #include <err.h> 57 58 #include "systat.h" 59 #include "extern.h" 60 61 extern char *getbsize __P((int *headerlenp, long *blocksizep)); 62 void showspace __P((char *header, int hlen, long blocksize)); 63 64 kvm_t *kd; 65 66 static long blocksize; 67 static int hlen; 68 69 WINDOW * 70 openswap() 71 { 72 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 73 } 74 75 void 76 closeswap(w) 77 WINDOW *w; 78 { 79 if (w == NULL) 80 return; 81 wclear(w); 82 wrefresh(w); 83 delwin(w); 84 } 85 86 /* 87 * The meat of all the swap stuff is stolen from pstat(8)'s 88 * swapmode(), which is based on a program called swapinfo written by 89 * Kevin Lahey <kml@rokkaku.atl.ga.us>. 90 */ 91 92 int 93 initswap() 94 { 95 int i; 96 char msgbuf[BUFSIZ]; 97 char *cp; 98 static int once = 0; 99 u_long ptr; 100 struct kvm_swap dummy; 101 102 if (once) 103 return (1); 104 105 if (kvm_getswapinfo(kd, &dummy, 1, 0) < 0) { 106 snprintf(msgbuf, sizeof(msgbuf), "systat: kvm_getswapinfo failed"); 107 error(msgbuf); 108 return (0); 109 } 110 111 once = 1; 112 return (1); 113 } 114 115 static struct kvm_swap kvmsw[16]; 116 static int kvnsw; 117 118 void 119 fetchswap() 120 { 121 kvnsw = kvm_getswapinfo(kd, kvmsw, 16, 0); 122 } 123 124 void 125 labelswap() 126 { 127 char *header, *p; 128 int row, i; 129 130 fetchswap(); 131 132 row = 0; 133 wmove(wnd, row, 0); wclrtobot(wnd); 134 header = getbsize(&hlen, &blocksize); 135 mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s", 136 "Disk", hlen, header, "Used", 137 "/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100"); 138 139 for (i = 0; i < kvnsw; ++i) { 140 mvwprintw(wnd, i + 1, 0, "%-5s", kvmsw[i].ksw_devname); 141 } 142 } 143 144 void 145 showswap() 146 { 147 int i; 148 int pagesize = getpagesize(); 149 150 #define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize)) 151 152 for (i = 0; i <= kvnsw; ++i) { 153 int col = 5; 154 int count; 155 156 if (i == kvnsw) { 157 if (kvnsw == 1) 158 break; 159 mvwprintw( 160 wnd, 161 i + 1, 162 col, 163 "%-5s", 164 "Total" 165 ); 166 col += 5; 167 } 168 if (kvmsw[i].ksw_total == 0) { 169 mvwprintw( 170 wnd, 171 i + 1, 172 col + 5, 173 "(swap not configured)" 174 ); 175 continue; 176 } 177 178 mvwprintw( 179 wnd, 180 i + 1, 181 col, 182 "%*d", 183 hlen, 184 CONVERT(kvmsw[i].ksw_total) 185 ); 186 col += hlen; 187 188 mvwprintw( 189 wnd, 190 i + 1, 191 col, 192 "%9d ", 193 CONVERT(kvmsw[i].ksw_used) 194 ); 195 196 count = (int)((double)kvmsw[i].ksw_used * 49.999 / 197 (double)kvmsw[i].ksw_total); 198 199 while (count >= 0) { 200 waddch(wnd, 'X'); 201 --count; 202 } 203 } 204 } 205