From 7279c2034d1f14299442483c52f11e145f4fe2bd Mon Sep 17 00:00:00 2001 From: blymn Date: Sun, 7 Aug 2005 12:19:06 +0000 Subject: [PATCH] Add header containing structure definitions for tape instrumentation --- sys/sys/tape.h | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 sys/sys/tape.h diff --git a/sys/sys/tape.h b/sys/sys/tape.h new file mode 100644 index 000000000000..cb2301462e67 --- /dev/null +++ b/sys/sys/tape.h @@ -0,0 +1,81 @@ +/* $NetBSD: tape.h,v 1.1 2005/08/07 12:19:06 blymn Exp $ */ + +/*- + * Copyright (c) 2005 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * 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. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +#ifndef _SYS_TAPE_H_ +#define _SYS_TAPE_H_ + +#include + +#define TAPENAMELEN 16 + +/* The following structure is 64-bit alignment safe */ +struct tape_sysctl { + char name[TAPENAMELEN]; + int32_t busy; + int32_t pad; + u_int64_t xfer; + u_int64_t bytes; + u_int32_t attachtime_sec; + u_int32_t attachtime_usec; + u_int32_t timestamp_sec; + u_int32_t timestamp_usec; + u_int32_t time_sec; + u_int32_t time_usec; + u_int64_t rxfer; + u_int64_t rbytes; + u_int64_t wxfer; + u_int64_t wbytes; +}; + +/* + * Statistics for the tape device - in a separate structure so userland can + * see them. + */ + +struct tape { + char *name; /* name of drive */ + int busy; /* drive is busy */ + u_int64_t rxfer; /* total number of read transfers */ + u_int64_t wxfer; /* total number of write transfers */ + u_int64_t rbytes; /* total bytes read */ + u_int64_t wbytes; /* total bytes written */ + struct timeval attachtime; /* time tape was attached */ + struct timeval timestamp; /* timestamp of last unbusy */ + struct timeval time; /* total time spent busy */ + + TAILQ_ENTRY(tape) link; +}; + +/* Head of the tape stats list, define here so userland can get at it */ +TAILQ_HEAD(tapelist_head, tape); /* the tapelist is a TAILQ */ + +#endif +