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| 2404 | konopa | 1 | /* |
| 2 | * Copyright (c) 1987,1997, Prentice Hall |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use of the MINIX operating system in source and |
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| 6 | * binary forms, with or without modification, are permitted provided |
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| 7 | * that the following conditions are met: |
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| 8 | |||
| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | |||
| 12 | * - Redistributions in binary form must reproduce the above |
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| 13 | * copyright notice, this list of conditions and the following |
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| 14 | * disclaimer in the documentation and/or other materials provided |
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| 15 | * with the distribution. |
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| 16 | |||
| 17 | * - Neither the name of Prentice Hall nor the names of the software |
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| 18 | * authors or contributors may be used to endorse or promote |
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| 19 | * products derived from this software without specific prior |
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| 20 | * written permission. |
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| 21 | |||
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS, AUTHORS, AND |
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| 23 | * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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| 24 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 25 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 26 | * IN NO EVENT SHALL PRENTICE HALL OR ANY AUTHORS OR CONTRIBUTORS BE |
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| 27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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| 30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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| 31 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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| 32 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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| 33 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 34 | */ |
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| 2435 | jelen | 35 | |
| 36 | /** @addtogroup FileSystemImpl |
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| 37 | * @{ |
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| 38 | */ |
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| 2404 | konopa | 39 | |
| 2435 | jelen | 40 | /** |
| 41 | * @file type.h |
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| 42 | * @brief Declaration of the basic used types which are part of the V1 and V2 inode |
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| 43 | * as it is on the disk (not in memory). |
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| 2385 | konopa | 44 | */ |
| 45 | |||
| 46 | |||
| 47 | #ifndef _TYPE_H |
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| 48 | #define _TYPE_H |
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| 49 | |||
| 50 | #include <sys/time.h> |
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| 51 | |||
| 52 | /* Types used in disk, inode, etc. data structures. */ |
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| 2435 | jelen | 53 | typedef unsigned short mode_t; /**< file type and permissions bits */ |
| 54 | typedef char nlink_t; /**< number of links to a file */ |
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| 55 | typedef short dev_t; /**< holds (major|minor) device pair */ |
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| 56 | typedef char gid_t; /**< group id */ |
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| 57 | typedef unsigned short ino_t; /**< i-node number */ |
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| 58 | typedef unsigned long offset_t; /**< offset within a file */ |
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| 59 | typedef int pid_t; /**< process id (must be signed) */ |
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| 60 | typedef short uid_t; /**< user id */ |
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| 61 | typedef unsigned long zone_t; /**< zone number */ |
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| 62 | typedef unsigned short zone1_t; /**< zone number for V1 file systems */ |
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| 63 | typedef unsigned long block_num_t; /**< block number */ |
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| 64 | typedef unsigned long bit_t; /**< bit number in a bit map */ |
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| 65 | typedef unsigned short bitchunk_t; /**< collection of bits in a bitmap */ |
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| 2385 | konopa | 66 | |
| 2435 | jelen | 67 | typedef unsigned char u8_t; /**< 8 bit type */ |
| 68 | typedef unsigned short u16_t; /**< 16 bit type */ |
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| 69 | typedef unsigned long u32_t; /**< 32 bit type */ |
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| 2385 | konopa | 70 | |
| 2435 | jelen | 71 | typedef char i8_t; /**< 8 bit signed type */ |
| 72 | typedef short i16_t; /**< 16 bit signed type */ |
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| 73 | typedef long i32_t; /**< 32 bit signed type */ |
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| 2385 | konopa | 74 | |
| 75 | //typedef unsigned long phys_bytes;/* physical addresses and lengths in bytes */ |
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| 76 | |||
| 77 | |||
| 2435 | jelen | 78 | /** |
| 79 | * Declaration of the V1 inode as it is on the disk (not in core). |
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| 80 | */ |
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| 81 | typedef struct { /**< V1.x disk inode */ |
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| 82 | mode_t d1_mode; /**< file type, protection, etc. */ |
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| 83 | uid_t d1_uid; /**< user id of the file's owner */ |
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| 84 | offset_t d1_size; /**< current file size in bytes */ |
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| 85 | time_t d1_mtime; /**< when was file data last changed */ |
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| 86 | gid_t d1_gid; /**< group number */ |
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| 87 | nlink_t d1_nlinks; /**< how many links to this file */ |
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| 88 | zone1_t d1_zone[V1_NR_TZONES]; /**< block nums for direct, ind, and dbl ind */ |
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| 2385 | konopa | 89 | } d1_inode_t; |
| 90 | |||
| 2435 | jelen | 91 | /** |
| 92 | * Declaration of the V2 inode as it is on the disk (not in core). |
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| 93 | */ |
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| 94 | typedef struct { /**< V2.x disk inode */ |
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| 95 | mode_t d2_mode; /**< file type, protection, etc. */ |
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| 96 | u16_t d2_nlinks; /**< how many links to this file. HACK! */ |
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| 97 | uid_t d2_uid; /**< user id of the file's owner. */ |
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| 98 | u16_t d2_gid; /**< group number HACK! */ |
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| 99 | offset_t d2_size; /**< current file size in bytes */ |
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| 100 | time_t d2_atime; /**< when was file data last accessed */ |
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| 101 | time_t d2_mtime; /**< when was file data last changed */ |
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| 102 | time_t d2_ctime; /**< when was inode data last changed */ |
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| 103 | zone_t d2_zone[V2_NR_TZONES]; /**< block nums for direct, ind, and dbl ind */ |
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| 2385 | konopa | 104 | } d2_inode_t; |
| 105 | |||
| 106 | #endif /* _TYPE_H */ |
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| 107 | |||
| 2435 | jelen | 108 | |
| 109 | /** |
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| 110 | * } |
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| 111 | */ |
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| 112 |