usr.bin/vmstat/drvstats.h

   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. */
  40 struct _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
  56 extern struct _drive    cur;
  57 extern char             **dr_name;
  58 extern int              *drv_select;
  59 extern size_t           ndrive;
  60
  61 int     drvinit(int);
  62 void    cpureadstats(void);
  63 void    drvreadstats(void);
  64 void    tkreadstats(void);
  65 void    cpuswap(void);
  66 void    drvswap(void);
  67 void    tkswap(void);