NetBSD/usr.bin/vmstat/tpstats.h

55 lines
2.0 KiB
C

/* $NetBSD: tpstats.h,v 1.1 2005/08/07 12:21:46 blymn Exp $ */
/*
* Copyright (c) 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from code donated to the NetBSD Foundation, Inc.
* by Brett Lymn.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/time.h>
#include <sys/sched.h>
#include <unistd.h>
/* Tape drive entry to hold the information we're interested in. */
struct _tape {
int *select; /* Display stats for selected tapes. */
char **name; /* Tape drive names (st0, etc). */
u_int64_t *rxfer; /* # of read transfers. */
u_int64_t *wxfer; /* # of write transfers. */
u_int64_t *rbytes; /* # of bytes read. */
u_int64_t *wbytes; /* # of bytes written. */
struct timeval *time; /* Time spent in tape i/o. */
};
extern struct _tape cur_tape;
extern char **tp_name;
extern int *tp_select, tp_ndrive;
int tpinit(int);
void tpreadstats(void);
void tpswap(void);