2 * SPDX-License-Identifier: BSD-3-Clause
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6 * Copyright (c) 2017 Yoshihiro Ota
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33 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
38 static const char sccsid[] = "@(#)swap.c 8.3 (Berkeley) 4/29/95";
42 * swapinfo - based on a program of the same name by Kevin Lahey
45 #include <sys/param.h>
46 #include <sys/ioctl.h>
64 static long blocksize;
65 static int dlen, odlen;
67 static int ulen, oulen;
73 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
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>.
94 static struct kvm_swap kvmsw[NSWAP];
95 static int kvnsw, okvnsw;
97 static void calclens(void);
99 #define CONVERT(v) ((int)((int64_t)(v) * pagesize / blocksize))
107 dlen = sizeof("Disk");
108 for (i = 0; i < kvnsw; ++i) {
109 len = strlen(kvmsw[i].ksw_devname);
114 ulen = sizeof("Used");
115 for (n = CONVERT(kvmsw[kvnsw].ksw_used), len = 2; n /= 10; ++len);
128 header = getbsize(&hlen, &blocksize);
129 pagesize = getpagesize();
131 if ((kvnsw = kvm_getswapinfo(kd, kvmsw, NSWAP, 0)) < 0) {
132 error("systat: kvm_getswapinfo failed");
152 if ((kvnsw = kvm_getswapinfo(kd, kvmsw, NSWAP, 0)) < 0) {
153 error("systat: kvm_getswapinfo failed");
161 struct devinfo *tmp_dinfo;
163 tmp_dinfo = last_dev.dinfo;
164 last_dev.dinfo = cur_dev.dinfo;
165 cur_dev.dinfo = tmp_dinfo;
167 last_dev.snap_time = cur_dev.snap_time;
168 dsgetinfo( &cur_dev );
181 mvwprintw(wnd, 0, 0, "%*s%*s%*s %s",
182 -dlen, "Disk", hlen, header, ulen, "Used",
183 "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100");
185 for (i = 0; i <= kvnsw; ++i) {
191 name = kvmsw[i].ksw_devname;
192 mvwprintw(wnd, i + 1, 0, "%*s", -dlen, name);
203 if (kvnsw != okvnsw || dlen != odlen || ulen != oulen)
206 for (i = 0; i <= kvnsw; ++i) {
212 if (kvmsw[i].ksw_total == 0) {
216 dlen + hlen + ulen + 1,
217 "(swap not configured)"
222 wmove(wnd, i + 1, dlen);
224 wprintw(wnd, "%*d", hlen, CONVERT(kvmsw[i].ksw_total));
225 wprintw(wnd, "%*d", ulen, CONVERT(kvmsw[i].ksw_used));
227 count = 50.0 * kvmsw[i].ksw_used / kvmsw[i].ksw_total + 1;
234 dsshow(12, 0, 18, &cur_dev, &last_dev);