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filecore_node.h revision 1.1.2.2 
      1 /*	$NetBSD: filecore_node.h,v 1.1.2.2 2002/12/29 19:55:52 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 Andrew McMurry
      5  * Copyright (c) 1994 The Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	filecore_node.h		1.1	1998/6/26
     37  */
     38 
     39 #include <miscfs/genfs/genfs_node.h>
     40 
     41 /*
     42  * In a future format, directories may be more than 2Gb in length,
     43  * however, in practice this seems unlikely. So, we define
     44  * the type doff_t as a long to keep down the cost of doing
     45  * lookup on a 32-bit machine. If you are porting to a 64-bit
     46  * architecture, you should make doff_t the same as off_t.
     47  */
     48 #define doff_t	long
     49 
     50 struct filecore_node {
     51 	struct	genfs_node i_gnode;
     52 	LIST_ENTRY(filecore_node) i_hash;
     53 	struct	vnode *i_vnode;	/* vnode associated with this inode */
     54 	struct	vnode *i_devvp;	/* vnode for block I/O */
     55 	u_long	i_flag;		/* see below */
     56 	dev_t	i_dev;		/* device where inode resides */
     57 	ino_t	i_number;	/* the identity of the inode */
     58 	daddr_t	i_block;	/* the disc address of the file */
     59 	ino_t	i_parent;	/* the ino of the file's parent */
     60 
     61 	struct	filecore_mnt *i_mnt;	/* filesystem associated with this inode */
     62 	struct	lockf *i_lockf;	/* head of byte-level lock list */
     63         int	i_diroff;	/* offset in dir, where we found last entry */
     64 
     65 	struct	filecore_direntry i_dirent; /* directory entry */
     66 };
     67 
     68 #define	i_forw		i_chain[0]
     69 #define	i_back		i_chain[1]
     70 #define i_size		i_dirent.len
     71 
     72 /* flags */
     73 #define	IN_ACCESS	0x0020		/* inode access time to be updated */
     74 
     75 #define VTOI(vp) ((struct filecore_node *)(vp)->v_data)
     76 #define ITOV(ip) ((ip)->i_vnode)
     77 
     78 #define filecore_staleinode(ip) ((ip)->i_dirent.name[0]==0)
     79 
     80 /*
     81  * Prototypes for Filecore vnode operations
     82  */
     83 int	filecore_lookup		__P((void *));
     84 #define	filecore_open		genfs_nullop
     85 #define	filecore_close		genfs_nullop
     86 int	filecore_access		__P((void *));
     87 int	filecore_getattr	__P((void *));
     88 int	filecore_read		__P((void *));
     89 #define	filecore_poll		genfs_poll
     90 #define	filecore_mmap		genfs_mmap
     91 #define	filecore_seek		genfs_seek
     92 int	filecore_readdir	__P((void *));
     93 int	filecore_readlink	__P((void *));
     94 #define	filecore_abortop	genfs_abortop
     95 int	filecore_inactive	__P((void *));
     96 int	filecore_reclaim	__P((void *));
     97 int	filecore_link		__P((void *));
     98 int	filecore_symlink	__P((void *));
     99 int	filecore_bmap		__P((void *));
    100 int	filecore_strategy	__P((void *));
    101 int	filecore_print		__P((void *));
    102 int	filecore_pathconf	__P((void *));
    103 int	filecore_blkatoff	__P((void *));
    104 
    105 struct	vnode *filecore_ihashget __P((dev_t, ino_t));
    106 void	filecore_ihashins __P((struct filecore_node *));
    107 void	filecore_ihashrem __P((struct filecore_node *));
    108 
    109 mode_t	filecore_mode	__P((struct filecore_node *));
    110 struct timespec	filecore_time	__P((struct filecore_node *));
    111 ino_t	filecore_getparent	__P((struct filecore_node *));
    112 int	filecore_fn2unix	__P((char *, char *, u_int8_t *));
    113 int	filecore_fncmp		__P((const char *, const char *, u_short));
    114 int	filecore_dbread		__P((struct filecore_node *, struct buf **));
    115