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>
62 static long blocksize;
63 static int dlen, odlen;
65 static int ulen, oulen;
71 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
85 * The meat of all the swap stuff is stolen from pstat(8)'s
86 * swapmode(), which is based on a program called swapinfo written by
87 * Kevin Lahey <kml@rokkaku.atl.ga.us>.
92 static struct kvm_swap kvmsw[NSWAP];
93 static int kvnsw, okvnsw;
95 static void calclens(void);
97 #define CONVERT(v) ((int)((int64_t)(v) * pagesize / blocksize))
105 dlen = sizeof("Disk");
106 for (i = 0; i < kvnsw; ++i) {
107 len = strlen(kvmsw[i].ksw_devname);
112 ulen = sizeof("Used");
113 for (n = CONVERT(kvmsw[kvnsw].ksw_used), len = 2; n /= 10; ++len);
126 header = getbsize(&hlen, &blocksize);
127 pagesize = getpagesize();
129 if ((kvnsw = kvm_getswapinfo(kd, kvmsw, NSWAP, 0)) < 0) {
130 error("systat: kvm_getswapinfo failed");
150 if ((kvnsw = kvm_getswapinfo(kd, kvmsw, NSWAP, 0)) < 0) {
151 error("systat: kvm_getswapinfo failed");
159 struct devinfo *tmp_dinfo;
161 tmp_dinfo = last_dev.dinfo;
162 last_dev.dinfo = cur_dev.dinfo;
163 cur_dev.dinfo = tmp_dinfo;
165 last_dev.snap_time = cur_dev.snap_time;
166 dsgetinfo( &cur_dev );
179 mvwprintw(wnd, 0, 0, "%*s%*s%*s %s",
180 -dlen, "Disk", hlen, header, ulen, "Used",
181 "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100");
183 for (i = 0; i <= kvnsw; ++i) {
189 name = kvmsw[i].ksw_devname;
190 mvwprintw(wnd, i + 1, 0, "%*s", -dlen, name);
201 if (kvnsw != okvnsw || dlen != odlen || ulen != oulen)
204 for (i = 0; i <= kvnsw; ++i) {
210 if (kvmsw[i].ksw_total == 0) {
214 dlen + hlen + ulen + 1,
215 "(swap not configured)"
220 wmove(wnd, i + 1, dlen);
222 wprintw(wnd, "%*d", hlen, CONVERT(kvmsw[i].ksw_total));
223 wprintw(wnd, "%*d", ulen, CONVERT(kvmsw[i].ksw_used));
225 count = 50.0 * kvmsw[i].ksw_used / kvmsw[i].ksw_total + 1;
232 dsshow(12, 0, 18, &cur_dev, &last_dev);