Annotation of src/usr.bin/systat/swap.c, Revision 1.11
1.11 ! weingart 1: /* $OpenBSD: swap.c,v 1.10 1998/11/22 23:29:37 kstailey Exp $ */
! 2: /* $NetBSD: swap.c,v 1.9 1998/12/26 07:05:08 marc Exp $ */
1.1 deraadt 3:
4: /*-
1.11 ! weingart 5: * Copyright (c) 1997 Matthew R. Green. All rights reserved.
1.1 deraadt 6: * Copyright (c) 1980, 1992, 1993
7: * The Regents of the University of California. All rights reserved.
8: *
9: * Redistribution and use in source and binary forms, with or without
10: * modification, are permitted provided that the following conditions
11: * are met:
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in the
16: * documentation and/or other materials provided with the distribution.
17: * 3. All advertising materials mentioning features or use of this software
18: * must display the following acknowledgement:
19: * This product includes software developed by the University of
20: * California, Berkeley and its contributors.
21: * 4. Neither the name of the University nor the names of its contributors
22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
36: */
37:
38: #ifndef lint
39: #if 0
40: static char sccsid[] = "@(#)swap.c 8.3 (Berkeley) 4/29/95";
41: #endif
1.11 ! weingart 42: static char rcsid[] = "$OpenBSD: swap.c,v 1.10 1998/11/22 23:29:37 kstailey Exp $";
1.1 deraadt 43: #endif /* not lint */
44:
45:
1.11 ! weingart 46: #include <sys/cdefs.h>
1.1 deraadt 47: #include <sys/param.h>
48: #include <sys/buf.h>
49: #include <sys/conf.h>
50: #include <sys/ioctl.h>
51: #include <sys/stat.h>
1.11 ! weingart 52: #include <sys/swap.h>
1.1 deraadt 53:
54: #include <stdio.h>
55: #include <stdlib.h>
56: #include <string.h>
1.11 ! weingart 57: #include <errno.h>
1.1 deraadt 58: #include <unistd.h>
59:
60: #include "systat.h"
61: #include "extern.h"
62:
63: void showspace __P((char *header, int hlen, long blocksize));
64:
1.11 ! weingart 65: static long blocksize;
! 66: static int hlen, nswap, rnswap;
! 67: static int first = 1;
! 68: static struct swapent *swap_devices;
1.1 deraadt 69:
70: WINDOW *
71: openswap()
72: {
73: return (subwin(stdscr, LINES-5-1, 0, 5, 0));
74: }
75:
76: void
77: closeswap(w)
78: WINDOW *w;
79: {
80: if (w == NULL)
81: return;
82: wclear(w);
83: wrefresh(w);
84: delwin(w);
85: }
86:
1.11 ! weingart 87: /* do nothing */
1.9 millert 88: int
1.1 deraadt 89: initswap()
90: {
91: return (1);
92: }
93:
94: void
95: fetchswap()
96: {
1.11 ! weingart 97: int update_label = 0;
! 98:
! 99: first = 0;
! 100: nswap = swapctl(SWAP_NSWAP, 0, 0);
! 101: if (nswap < 0)
! 102: error("error: %s", strerror(errno));
! 103: if (nswap == 0)
! 104: return;
! 105: update_label = (nswap != rnswap);
1.1 deraadt 106:
1.11 ! weingart 107: if (swap_devices)
! 108: (void)free(swap_devices);
! 109: swap_devices = (struct swapent *)malloc(nswap * sizeof(*swap_devices));
! 110: if (swap_devices == NULL)
! 111: /* XXX */ ; /* XXX systat doesn't do errors! */
! 112:
! 113: rnswap = swapctl(SWAP_STATS, (void *)swap_devices, nswap);
! 114: if (nswap < 0)
! 115: /* XXX */ ; /* XXX systat doesn't do errors! */
! 116: if (nswap != rnswap)
! 117: /* XXX */ ; /* XXX systat doesn't do errors! */
! 118: if (update_label)
! 119: labelswap();
1.1 deraadt 120: }
121:
122: void
123: labelswap()
124: {
1.11 ! weingart 125: char *header;
! 126: int row;
1.1 deraadt 127:
128: row = 0;
1.11 ! weingart 129: wmove(wnd, row, 0);
! 130: wclrtobot(wnd);
! 131: if (first)
! 132: fetchswap();
! 133: if (nswap == 0) {
! 134: mvwprintw(wnd, row++, 0, "No swap");
! 135: return;
! 136: }
1.1 deraadt 137: header = getbsize(&hlen, &blocksize);
138: mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s",
139: "Disk", hlen, header, "Used",
140: "/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100%");
141: }
142:
143: void
1.11 ! weingart 144: showswap() {
! 145: int col, div, i, j, avail, used, xsize, free;
! 146: struct swapent *sep;
! 147: char *p;
1.1 deraadt 148:
149: div = blocksize / 512;
1.11 ! weingart 150: free = avail = 0;
! 151: for (sep = swap_devices, i = 0; i < nswap; i++, sep++) {
! 152: if (sep == NULL)
! 153: continue;
! 154:
! 155: p = strrchr(sep->se_path, '/');
! 156: p = p ? p+1 : sep->se_path;
! 157:
! 158: mvwprintw(wnd, i + 1, 0, "%-5s", p);
! 159:
1.1 deraadt 160: col = 5;
1.11 ! weingart 161: mvwprintw(wnd, i + 1, col, "%*d", hlen, sep->se_nblks / div);
! 162:
1.1 deraadt 163: col += hlen;
1.11 ! weingart 164: xsize = sep->se_nblks;
! 165: used = sep->se_inuse;
! 166: avail += xsize;
! 167: free += xsize - used;
1.1 deraadt 168: mvwprintw(wnd, i + 1, col, "%9d ", used / div);
169: for (j = (100 * used / xsize + 1) / 2; j > 0; j--)
170: waddch(wnd, 'X');
1.11 ! weingart 171: wclrtoeol(wnd);
1.1 deraadt 172: }
1.11 ! weingart 173: /* do total if necessary */
! 174: if (nswap > 1) {
! 175: used = avail - free;
1.1 deraadt 176: mvwprintw(wnd, i + 1, 0, "%-5s%*d%9d ",
177: "Total", hlen, avail / div, used / div);
178: for (j = (100 * used / avail + 1) / 2; j > 0; j--)
179: waddch(wnd, 'X');
1.11 ! weingart 180: wclrtoeol(wnd);
1.1 deraadt 181: }
182: }
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