82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
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/* $NetBSD: tape.h,v 1.3 2005/12/26 18:41:36 perry Exp $ */
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/*-
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* Copyright (c) 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Brett Lymn
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_TAPE_H_
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#define _SYS_TAPE_H_
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#include <sys/queue.h>
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#define TAPENAMELEN 16
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/* The following structure is 64-bit alignment safe */
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struct tape_sysctl {
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char name[TAPENAMELEN];
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int32_t busy;
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int32_t pad;
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uint64_t xfer;
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uint64_t bytes;
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uint32_t attachtime_sec;
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uint32_t attachtime_usec;
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uint32_t timestamp_sec;
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uint32_t timestamp_usec;
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uint32_t time_sec;
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uint32_t time_usec;
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uint64_t rxfer;
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uint64_t rbytes;
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uint64_t wxfer;
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uint64_t wbytes;
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};
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/*
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* Statistics for the tape device - in a separate structure so userland can
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* see them.
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*/
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struct tape {
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char *name; /* name of drive */
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int busy; /* drive is busy */
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uint64_t rxfer; /* total number of read transfers */
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uint64_t wxfer; /* total number of write transfers */
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uint64_t rbytes; /* total bytes read */
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uint64_t wbytes; /* total bytes written */
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struct timeval attachtime; /* time tape was attached */
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struct timeval timestamp; /* timestamp of last unbusy */
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struct timeval time; /* total time spent busy */
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TAILQ_ENTRY(tape) link;
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};
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/* Head of the tape stats list, define here so userland can get at it */
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TAILQ_HEAD(tapelist_head, tape); /* the tapelist is a TAILQ */
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#endif
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