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 char msgbuf[BUFSIZ]; 96 static int once = 0; 97 struct kvm_swap dummy; 98 99 if (once) 100 return (1); 101 102 if (kvm_getswapinfo(kd, &dummy, 1, 0) < 0) { 103 snprintf(msgbuf, sizeof(msgbuf), "systat: kvm_getswapinfo failed"); 104 error("%s", msgbuf); 105 return (0); 106 } 107 108 once = 1; 109 return (1); 110 } 111 112 static struct kvm_swap kvmsw[16]; 113 static int kvnsw; 114 115 void 116 fetchswap() 117 { 118 kvnsw = kvm_getswapinfo(kd, kvmsw, 16, 0); 119 } 120 121 void 122 labelswap() 123 { 124 char *header; 125 int row, i; 126 127 fetchswap(); 128 129 row = 0; 130 wmove(wnd, row, 0); wclrtobot(wnd); 131 header = getbsize(&hlen, &blocksize); 132 mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s", 133 "Disk", hlen, header, "Used", 134 "/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100"); 135 136 for (i = 0; i < kvnsw; ++i) { 137 mvwprintw(wnd, i + 1, 0, "%-5s", kvmsw[i].ksw_devname); 138 } 139 } 140 141 void 142 showswap() 143 { 144 int i; 145 int pagesize = getpagesize(); 146 147 #define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize)) 148 149 for (i = 0; i <= kvnsw; ++i) { 150 int col = 5; 151 int count; 152 153 if (i == kvnsw) { 154 if (kvnsw == 1) 155 break; 156 mvwprintw( 157 wnd, 158 i + 1, 159 col, 160 "%-5s", 161 "Total" 162 ); 163 col += 5; 164 } 165 if (kvmsw[i].ksw_total == 0) { 166 mvwprintw( 167 wnd, 168 i + 1, 169 col + 5, 170 "(swap not configured)" 171 ); 172 continue; 173 } 174 175 mvwprintw( 176 wnd, 177 i + 1, 178 col, 179 "%*d", 180 hlen, 181 CONVERT(kvmsw[i].ksw_total) 182 ); 183 col += hlen; 184 185 mvwprintw( 186 wnd, 187 i + 1, 188 col, 189 "%9d ", 190 CONVERT(kvmsw[i].ksw_used) 191 ); 192 193 count = (int)((double)kvmsw[i].ksw_used * 49.999 / 194 (double)kvmsw[i].ksw_total); 195 196 while (count >= 0) { 197 waddch(wnd, 'X'); 198 --count; 199 } 200 } 201 } 202