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/buf.h> 48 #include <sys/conf.h> 49 #include <sys/ioctl.h> 50 #include <sys/stat.h> 51 52 #include <kvm.h> 53 #include <nlist.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <unistd.h> 57 #include <string.h> 58 #include <err.h> 59 60 #include "systat.h" 61 #include "extern.h" 62 63 extern char *getbsize __P((int *headerlenp, long *blocksizep)); 64 void showspace __P((char *header, int hlen, long blocksize)); 65 66 kvm_t *kd; 67 68 static long blocksize; 69 static int hlen; 70 71 WINDOW * 72 openswap() 73 { 74 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 75 } 76 77 void 78 closeswap(w) 79 WINDOW *w; 80 { 81 if (w == NULL) 82 return; 83 wclear(w); 84 wrefresh(w); 85 delwin(w); 86 } 87 88 /* 89 * The meat of all the swap stuff is stolen from pstat(8)'s 90 * swapmode(), which is based on a program called swapinfo written by 91 * Kevin Lahey <kml@rokkaku.atl.ga.us>. 92 */ 93 94 int 95 initswap() 96 { 97 int i; 98 char msgbuf[BUFSIZ]; 99 char *cp; 100 static int once = 0; 101 u_long ptr; 102 struct kvm_swap dummy; 103 104 if (once) 105 return (1); 106 107 if (kvm_getswapinfo(kd, &dummy, 1, 0) < 0) { 108 snprintf(msgbuf, sizeof(msgbuf), "systat: kvm_getswapinfo failed"); 109 error(msgbuf); 110 return (0); 111 } 112 113 once = 1; 114 return (1); 115 } 116 117 static struct kvm_swap kvmsw[16]; 118 static int kvnsw; 119 120 void 121 fetchswap() 122 { 123 kvnsw = kvm_getswapinfo(kd, kvmsw, 16, 0); 124 } 125 126 void 127 labelswap() 128 { 129 char *header, *p; 130 int row, i; 131 132 fetchswap(); 133 134 row = 0; 135 wmove(wnd, row, 0); wclrtobot(wnd); 136 header = getbsize(&hlen, &blocksize); 137 mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s", 138 "Disk", hlen, header, "Used", 139 "/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100"); 140 141 for (i = 0; i < kvnsw; ++i) { 142 mvwprintw(wnd, i + 1, 0, "%-5s", kvmsw[i].ksw_devname); 143 } 144 } 145 146 void 147 showswap() 148 { 149 int i; 150 int pagesize = getpagesize(); 151 152 #define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize)) 153 154 for (i = 0; i <= kvnsw; ++i) { 155 int col = 5; 156 int count; 157 158 if (i == kvnsw) { 159 if (kvnsw == 1) 160 break; 161 mvwprintw( 162 wnd, 163 i + 1, 164 col, 165 "%-5s", 166 "Total" 167 ); 168 col += 5; 169 } 170 if (kvmsw[i].ksw_total == 0) { 171 mvwprintw( 172 wnd, 173 i + 1, 174 col + 5, 175 "(swap not configured)" 176 ); 177 continue; 178 } 179 180 mvwprintw( 181 wnd, 182 i + 1, 183 col, 184 "%*d", 185 hlen, 186 CONVERT(kvmsw[i].ksw_total) 187 ); 188 col += hlen; 189 190 mvwprintw( 191 wnd, 192 i + 1, 193 col, 194 "%9d ", 195 CONVERT(kvmsw[i].ksw_used) 196 ); 197 198 count = (int)((double)kvmsw[i].ksw_used * 49.999 / 199 (double)kvmsw[i].ksw_total); 200 201 while (count >= 0) { 202 waddch(wnd, 'X'); 203 --count; 204 } 205 } 206 } 207