1/*	$NetBSD: drvstats.h,v 1.2 2006/06/07 20:58:23 kardel Exp $	*/
2
3/*
4 * Copyright (c) 1996 John M. Vinopal
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed for the NetBSD Project
18 *      by John M. Vinopal.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <sys/time.h>
36#include <sys/sched.h>
37#include <unistd.h>
38
39/* poseur disk entry to hold the information we're interested in. */
40struct _drive {
41	int		 *select;	/* Display stats for selected disks. */
42	char		**name;	/* Disk names (sd0, wd1, etc). */
43	u_int64_t	 *rxfer;	/* # of read transfers. */
44	u_int64_t	 *wxfer;	/* # of write transfers. */
45	u_int64_t	 *seek;	/* # of seeks (currently unused). */
46	u_int64_t	 *rbytes;	/* # of bytes read. */
47	u_int64_t	 *wbytes;	/* # of bytes written. */
48	struct timeval	 *time;	/* Time spent in disk i/o. */
49	u_int64_t	  tk_nin;	/* TTY Chars in. */
50	u_int64_t	  tk_nout;	/* TTY Chars out. */
51	u_int64_t	  cp_time[CPUSTATES];	/* System timer ticks. */
52	int	 	  cp_ncpu;		/* Number of cpu's */
53	double		  cp_etime;		/* Elapsed time */
54};
55
56extern struct _drive	cur;
57extern char		**dr_name;
58extern int		*drv_select;
59extern size_t		ndrive;
60
61int	drvinit(int);
62void	cpureadstats(void);
63void	drvreadstats(void);
64void	tkreadstats(void);
65void	cpuswap(void);
66void	drvswap(void);
67void	tkswap(void);
68