Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/systat/swap.c	Lines:	0	59	0.0 %
Date:	2017-11-07	Branches:	0	30	0.0 %


/*	$OpenBSD: swap.c,v 1.27 2015/08/20 22:32:42 deraadt Exp $	*/
/*	$NetBSD: swap.c,v 1.9 1998/12/26 07:05:08 marc Exp $	*/

/*-
 * Copyright (c) 1997 Matthew R. Green.  All rights reserved.
 * Copyright (c) 1980, 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/signal.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/swap.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>

#include "systat.h"


static	long blocksize;
static	int hlen, nswap, rnswap;
static	struct swapent *swap_devices;

void print_sw(void);
int read_sw(void);
int select_sw(void);
static void showswap(int i);
static void showtotal(void);


field_def fields_sw[] = {
	{"DISK", 6, 16, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
	{"BLOCKS", 5, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
	{"USED", 5, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
	{"", 40, 80, 1, FLD_ALIGN_BAR, -1, 0, 0, 100},
};

#define FLD_SW_NAME	FIELD_ADDR(fields_sw,0)
#define FLD_SW_BLOCKS	FIELD_ADDR(fields_sw,1)
#define FLD_SW_USED	FIELD_ADDR(fields_sw,2)
#define FLD_SW_BAR	FIELD_ADDR(fields_sw,3)

/* Define views */
field_def *view_sw_0[] = {
	FLD_SW_NAME, FLD_SW_BLOCKS, FLD_SW_USED, FLD_SW_BAR, NULL
};


/* Define view managers */
struct view_manager swap_mgr = {
	"Swap", select_sw, read_sw, NULL, print_header,
	print_sw, keyboard_callback, NULL, NULL
};

field_view views_sw[] = {
	{view_sw_0, "swap", '6', &swap_mgr},
	{NULL, NULL, 0, NULL}
};


int
select_sw(void)
{
	if (swap_devices == NULL || nswap == 0)
		num_disp = 1;
	else
		num_disp = nswap;
	if (nswap > 1)
		num_disp++;
	return (0);
}

int
read_sw(void)
{
	num_disp = 1;

	nswap = swapctl(SWAP_NSWAP, 0, 0);

	if (nswap < 0)
		error("error: %s", strerror(errno));
	if (nswap == 0)
		return 0;

	if (swap_devices)
		(void)free(swap_devices);

	swap_devices = calloc(nswap, sizeof(*swap_devices));
	if (swap_devices == NULL)
		return 0;

	rnswap = swapctl(SWAP_STATS, (void *)swap_devices, nswap);
	if (rnswap < 0 || nswap != rnswap)
		return 0;

	num_disp = nswap;
	if (nswap > 1)
		num_disp++;

	return 0;
}


void
print_sw(void)
{
	int n, count = 0;

	if (swap_devices == NULL || nswap == 0) {
		print_fld_str(FLD_SW_BAR, "No swap devices");
		return;
	}


	for (n = dispstart; n < num_disp; n++) {
		if (n >= nswap)
			showtotal();
		else
			showswap(n);
		count++;
		if (maxprint > 0 && count >= maxprint)
			break;
	}

}

int
initswap(void)
{
	field_view *v;

	char *bs = getbsize(&hlen, &blocksize);

	FLD_SW_BLOCKS->title = strdup(bs);

	for (v = views_sw; v->name != NULL; v++)
		add_view(v);

	return(1);
}


static void
showswap(int i)
{
	int d, used, xsize;
	struct	swapent *sep;
	char	*p;

	d = blocksize / 512;

	sep = &swap_devices[i];

	p = strrchr(sep->se_path, '/');
	p = p ? p+1 : sep->se_path;

	print_fld_str(FLD_SW_NAME, p);

	xsize = sep->se_nblks;
	used = sep->se_inuse;

	print_fld_uint(FLD_SW_BLOCKS, xsize / d);
	print_fld_uint(FLD_SW_USED, used / d);
	print_fld_bar(FLD_SW_BAR, 100 * used / xsize);

	end_line();
}

static void
showtotal(void)
{
	struct	swapent *sep;
	int	d, i, avail, used, xsize, mfree;

	d = blocksize / 512;
	mfree = avail = 0;

	for (sep = swap_devices, i = 0; i < nswap; i++, sep++) {
		xsize = sep->se_nblks;
		used = sep->se_inuse;
		avail += xsize;
		mfree += xsize - used;
	}
	used = avail - mfree;

	print_fld_str(FLD_SW_NAME, "Total");
	print_fld_uint(FLD_SW_BLOCKS, avail / d);
	print_fld_uint(FLD_SW_USED, used / d);
	print_fld_bar(FLD_SW_BAR, 100 * used / avail);

	end_line();
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: swap.c,v 1.27 2015/08/20 22:32:42 deraadt Exp $ */
2			/* $NetBSD: swap.c,v 1.9 1998/12/26 07:05:08 marc Exp $ */
3
4			/*-
5			* Copyright (c) 1997 Matthew R. Green. All rights reserved.
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. 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			#include <sys/types.h>
35			#include <sys/signal.h>
36			#include <sys/conf.h>
37			#include <sys/ioctl.h>
38			#include <sys/stat.h>
39			#include <sys/swap.h>
40
41			#include <stdio.h>
42			#include <stdlib.h>
43			#include <string.h>
44			#include <errno.h>
45			#include <unistd.h>
46
47			#include "systat.h"
48
49
50			static long blocksize;
51			static int hlen, nswap, rnswap;
52			static struct swapent *swap_devices;
53
54			void print_sw(void);
55			int read_sw(void);
56			int select_sw(void);
57			static void showswap(int i);
58			static void showtotal(void);
59
60
61			field_def fields_sw[] = {
62			{"DISK", 6, 16, 1, FLD_ALIGN_LEFT, -1, 0, 0, 0},
63			{"BLOCKS", 5, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
64			{"USED", 5, 10, 1, FLD_ALIGN_RIGHT, -1, 0, 0, 0},
65			{"", 40, 80, 1, FLD_ALIGN_BAR, -1, 0, 0, 100},
66			};
67
68			#define FLD_SW_NAME FIELD_ADDR(fields_sw,0)
69			#define FLD_SW_BLOCKS FIELD_ADDR(fields_sw,1)
70			#define FLD_SW_USED FIELD_ADDR(fields_sw,2)
71			#define FLD_SW_BAR FIELD_ADDR(fields_sw,3)
72
73			/* Define views */
74			field_def *view_sw_0[] = {
75			FLD_SW_NAME, FLD_SW_BLOCKS, FLD_SW_USED, FLD_SW_BAR, NULL
76			};
77
78
79			/* Define view managers */
80			struct view_manager swap_mgr = {
81			"Swap", select_sw, read_sw, NULL, print_header,
82			print_sw, keyboard_callback, NULL, NULL
83			};
84
85			field_view views_sw[] = {
86			{view_sw_0, "swap", '6', &swap_mgr},
87			{NULL, NULL, 0, NULL}
88			};
89
90
91			int
92			select_sw(void)
93			{
94			if (swap_devices == NULL \|\| nswap == 0)
95			num_disp = 1;
96			else
97			num_disp = nswap;
98			if (nswap > 1)
99			num_disp++;
100			return (0);
101			}
102
103			int
104			read_sw(void)
105			{
106			num_disp = 1;
107
108			nswap = swapctl(SWAP_NSWAP, 0, 0);
109
110			if (nswap < 0)
111			error("error: %s", strerror(errno));
112			if (nswap == 0)
113			return 0;
114
115			if (swap_devices)
116			(void)free(swap_devices);
117
118			swap_devices = calloc(nswap, sizeof(*swap_devices));
119			if (swap_devices == NULL)
120			return 0;
121
122			rnswap = swapctl(SWAP_STATS, (void *)swap_devices, nswap);
123			if (rnswap < 0 \|\| nswap != rnswap)
124			return 0;
125
126			num_disp = nswap;
127			if (nswap > 1)
128			num_disp++;
129
130			return 0;
131			}
132
133
134			void
135			print_sw(void)
136			{
137			int n, count = 0;
138
139			if (swap_devices == NULL \|\| nswap == 0) {
140			print_fld_str(FLD_SW_BAR, "No swap devices");
141			return;
142			}
143
144
145			for (n = dispstart; n < num_disp; n++) {
146			if (n >= nswap)
147			showtotal();
148			else
149			showswap(n);
150			count++;
151			if (maxprint > 0 && count >= maxprint)
152			break;
153			}
154
155			}
156
157			int
158			initswap(void)
159			{
160			field_view *v;
161
162			char *bs = getbsize(&hlen, &blocksize);
163
164			FLD_SW_BLOCKS->title = strdup(bs);
165
166			for (v = views_sw; v->name != NULL; v++)
167			add_view(v);
168
169			return(1);
170			}
171
172
173			static void
174			showswap(int i)
175			{
176			int d, used, xsize;
177			struct swapent *sep;
178			char *p;
179
180			d = blocksize / 512;
181
182			sep = &swap_devices[i];
183
184			p = strrchr(sep->se_path, '/');
185			p = p ? p+1 : sep->se_path;
186
187			print_fld_str(FLD_SW_NAME, p);
188
189			xsize = sep->se_nblks;
190			used = sep->se_inuse;
191
192			print_fld_uint(FLD_SW_BLOCKS, xsize / d);
193			print_fld_uint(FLD_SW_USED, used / d);
194			print_fld_bar(FLD_SW_BAR, 100 * used / xsize);
195
196			end_line();
197			}
198
199			static void
200			showtotal(void)
201			{
202			struct swapent *sep;
203			int d, i, avail, used, xsize, mfree;
204
205			d = blocksize / 512;
206			mfree = avail = 0;
207
208			for (sep = swap_devices, i = 0; i < nswap; i++, sep++) {
209			xsize = sep->se_nblks;
210			used = sep->se_inuse;
211			avail += xsize;
212			mfree += xsize - used;
213			}
214			used = avail - mfree;
215
216			print_fld_str(FLD_SW_NAME, "Total");
217			print_fld_uint(FLD_SW_BLOCKS, avail / d);
218			print_fld_uint(FLD_SW_USED, used / d);
219			print_fld_bar(FLD_SW_BAR, 100 * used / avail);
220
221			end_line();
222			}