| 1 | /* $NetBSD: tape.h,v 1.4 2016/01/22 23:44:33 dholland Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2005 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Brett Lymn |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Neither the name of The NetBSD Foundation nor the names of its |
| 16 | * contributors may be used to endorse or promote products derived |
| 17 | * from this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _SYS_TAPE_H_ |
| 33 | #define _SYS_TAPE_H_ |
| 34 | |
| 35 | #include <sys/queue.h> |
| 36 | #include <sys/time.h> |
| 37 | |
| 38 | #define TAPENAMELEN 16 |
| 39 | |
| 40 | /* The following structure is 64-bit alignment safe */ |
| 41 | struct tape_sysctl { |
| 42 | char name[TAPENAMELEN]; |
| 43 | int32_t busy; |
| 44 | int32_t pad; |
| 45 | uint64_t xfer; |
| 46 | uint64_t bytes; |
| 47 | uint32_t attachtime_sec; |
| 48 | uint32_t attachtime_usec; |
| 49 | uint32_t timestamp_sec; |
| 50 | uint32_t timestamp_usec; |
| 51 | uint32_t time_sec; |
| 52 | uint32_t time_usec; |
| 53 | uint64_t rxfer; |
| 54 | uint64_t rbytes; |
| 55 | uint64_t wxfer; |
| 56 | uint64_t wbytes; |
| 57 | }; |
| 58 | |
| 59 | /* |
| 60 | * Statistics for the tape device - in a separate structure so userland can |
| 61 | * see them. |
| 62 | */ |
| 63 | |
| 64 | struct tape { |
| 65 | char *name; /* name of drive */ |
| 66 | int busy; /* drive is busy */ |
| 67 | uint64_t rxfer; /* total number of read transfers */ |
| 68 | uint64_t wxfer; /* total number of write transfers */ |
| 69 | uint64_t rbytes; /* total bytes read */ |
| 70 | uint64_t wbytes; /* total bytes written */ |
| 71 | struct timeval attachtime; /* time tape was attached */ |
| 72 | struct timeval timestamp; /* timestamp of last unbusy */ |
| 73 | struct timeval time; /* total time spent busy */ |
| 74 | |
| 75 | TAILQ_ENTRY(tape) link; |
| 76 | }; |
| 77 | |
| 78 | /* Head of the tape stats list, define here so userland can get at it */ |
| 79 | TAILQ_HEAD(tapelist_head, tape); /* the tapelist is a TAILQ */ |
| 80 | |
| 81 | #endif |