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| 2 | pj | 1 | /* |
| 2 | * Project: HARTIK (HA-rd R-eal TI-me K-ernel) |
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| 3 | * |
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| 4 | * Coordinators: Giorgio Buttazzo <giorgio@sssup.it> |
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| 5 | * Gerardo Lamastra <gerardo@sssup.it> |
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| 6 | * |
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| 7 | * Authors : Massimiliano Giorgi <massy@hartik.sssup.it> |
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| 8 | * (see authors.txt for full list of hartik's authors) |
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| 9 | * |
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| 10 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 11 | * |
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| 12 | * http://www.sssup.it |
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| 13 | * http://retis.sssup.it |
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| 14 | * http://hartik.sssup.it |
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| 15 | */ |
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| 16 | |||
| 17 | /* |
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| 18 | * Copyright (C) 1999 Massimiliano Giorgi |
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| 19 | * |
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| 20 | * This program is free software; you can redistribute it and/or modify |
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| 21 | * it under the terms of the GNU General Public License as published by |
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| 22 | * the Free Software Foundation; either version 2 of the License, or |
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| 23 | * (at your option) any later version. |
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| 24 | * |
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| 25 | * This program is distributed in the hope that it will be useful, |
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| 26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 28 | * GNU General Public License for more details. |
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| 29 | * |
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| 30 | * You should have received a copy of the GNU General Public License |
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| 31 | * along with this program; if not, write to the Free Software |
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| 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 33 | * |
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| 34 | */ |
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| 35 | |||
| 36 | /* |
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| 37 | * CVS : $Id: inode.h,v 1.1.1.1 2002-03-29 14:12:50 pj Exp $ |
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| 38 | * |
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| 39 | * File: $File$ |
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| 40 | * Revision: $Revision: 1.1.1.1 $ |
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| 41 | * Last update: $Date: 2002-03-29 14:12:50 $ |
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| 42 | */ |
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| 43 | |||
| 44 | /*** |
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| 45 | This file defines an inode structure and prototypes the functions used to manipulate that structure. |
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| 46 | ***/ |
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| 47 | |||
| 48 | #ifndef __INODE_H__ |
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| 49 | #define __INODE_H__ |
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| 50 | |||
| 51 | #include <fs/fsconf.h> |
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| 52 | #include <fs/types.h> |
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| 53 | #include <fs/stat.h> |
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| 54 | |||
| 55 | #include "rwlock.h" |
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| 56 | |||
| 57 | #ifdef MSDOS_FILESYSTEM |
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| 58 | #include "msdos/msdos_i.h" |
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| 59 | #endif |
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| 60 | |||
| 61 | struct inode { |
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| 62 | |||
| 63 | #ifdef _PARANOIA |
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| 64 | __uint32_t magic; /*+ magic number +*/ |
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| 65 | #endif |
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| 66 | |||
| 67 | struct stat i_st; |
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| 68 | |||
| 69 | struct inode *i_next; |
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| 70 | struct inode *i_prev; |
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| 71 | int i_hash; |
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| 72 | |||
| 73 | __rwlock_t i_lock; /* for read/write on inode's file */ |
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| 74 | |||
| 75 | __uint16_t i_dlink; /* quanti dentry puntano a questo? */ |
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| 76 | __uint32_t i_dirty:1; |
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| 77 | |||
| 78 | struct inode_operations *i_op; |
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| 79 | struct super_block *i_sb; |
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| 80 | |||
| 81 | union { |
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| 82 | #ifdef MSDOS_FILESYSTEM |
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| 83 | struct msdos_inode_info msdos_i; |
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| 84 | #endif |
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| 85 | unsigned dummy; |
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| 86 | } u; |
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| 87 | |||
| 88 | }; |
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| 89 | |||
| 90 | int inode_init(void); |
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| 91 | |||
| 92 | struct inode *catch_inode(void); |
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| 93 | void free_inode(struct inode *); |
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| 94 | |||
| 95 | void insert_inode(struct inode *ptr); |
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| 96 | void unlock_inode(struct inode *ptr); |
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| 97 | int destroy_inode(struct inode *ptr); |
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| 98 | |||
| 99 | int erase_inode(struct inode *prt); |
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| 100 | |||
| 101 | #endif |