xref: /freebsd/usr.bin/systat/sysput.c (revision f61e92ca5a23450bc28169bbdd71d7674df98c19)
1 /*-
2  * Copyright (c) 2019, 2020 Yoshihiro Ota
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  * 3. Neither the name of the University nor the names of its contributors
13  *    may be used to endorse or promote products derived from this software
14  *    without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/types.h>
33 #include <sys/sysctl.h>
34 
35 #include <inttypes.h>
36 #include <string.h>
37 #include <err.h>
38 #include <libutil.h>
39 
40 #include "systat.h"
41 #include "extern.h"
42 
43 void
44 sysputspaces(WINDOW *wd, int row, int col, int width)
45 {
46 	static char str60[] = "                    "
47 	    "                                        ";
48 
49 	mvwaddstr(wd, row, col, str60 + sizeof(str60) - width - 1);
50 }
51 
52 void
53 sysputstrs(WINDOW *wd, int row, int col, int width)
54 {
55 	static char str60[] = "********************"
56 	    "****************************************";
57 
58 	mvwaddstr(wnd, row, col, str60 + sizeof(str60) - width - 1);
59 }
60 
61 void
62 sysputXs(WINDOW *wd, int row, int col, int width)
63 {
64 	static char str60[] = "XXXXXXXXXXXXXXXXXXXX"
65 	    "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
66 
67 	mvwaddstr(wnd, row, col, str60 + sizeof(str60) - width - 1);
68 }
69 
70 void
71 sysputuint64(WINDOW *wd, int row, int col, int width, uint64_t val, int flags)
72 {
73 	char unit, *ptr, *start, wrtbuf[width + width + 1];
74 	int len;
75 
76 	unit = 0;
77 	start = wrtbuf;
78 	flags |= HN_NOSPACE;
79 
80 	if (val > INT64_MAX)
81 		goto error;
82 	else
83 		len = humanize_number(&wrtbuf[width], width + 1, val, "",
84 			HN_AUTOSCALE, flags);
85 	if (len < 0)
86 		goto error;
87 	else if (len < width)
88 		memset(wrtbuf + len, ' ', width - len);
89 	start += len;
90 
91 	mvwaddstr(wd, row, col, start);
92 	return;
93 
94 error:
95 	sysputstrs(wd, row, col, width);
96 }
97 
98 void
99 sysputwuint64(WINDOW *wd, int row, int col, int width, uint64_t val, int flags)
100 {
101 	if(val == 0)
102 		sysputspaces(wd, row, col, width);
103 	else
104 		sysputuint64(wd, row, col, width, val, flags);
105 }
106 
107 static int
108 calc_page_shift()
109 {
110 	u_int page_size;
111 	int shifts;
112 
113 	shifts = 0;
114 	GETSYSCTL("vm.stats.vm.v_page_size", page_size);
115 	for(; page_size > 1; page_size >>= 1)
116 		shifts++;
117 	return shifts;
118 }
119 
120 void
121 sysputpage(WINDOW *wd, int row, int col, int width, uint64_t pages, int flags)
122 {
123 	static int shifts = 0;
124 
125 	if (shifts == 0)
126 		shifts = calc_page_shift();
127 	pages <<= shifts;
128 	sysputuint64(wd, row, col, width, pages, flags);
129 }
130