92 lines
3.6 KiB
C
92 lines
3.6 KiB
C
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/* $NetBSD: v7fs_inode.h,v 1.1 2011/06/27 11:52:25 uch Exp $ */
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/*-
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* Copyright (c) 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _V7FS_INODE_H_
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#define _V7FS_INODE_H_
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/* Software implementation of inode. (memory image) */
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struct v7fs_inode {
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v7fs_ino_t inode_number; /* inode location */
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/* attr */
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uint16_t mode;
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int16_t nlink;
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int16_t uid;
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int16_t gid;
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v7fs_time_t atime;
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v7fs_time_t mtime;
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v7fs_time_t ctime;
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/* open mode */
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bool append_mode;
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v7fs_dev_t device; /* for special file.(cdev, bdev) */
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/* payload. */
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v7fs_off_t filesize; /* size of file (byte) */
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v7fs_daddr_t addr[V7FS_NADDR]; /* data block address list */
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};
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#define v7fs_inode_filesize(i) ((i)->filesize)
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#define v7fs_inode_allocated(i) ((i)->mode)
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#define v7fs_inode_nlink(i) ((i)->nlink)
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/* V7 original */
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#define v7fs_inode_isdir(i) (((i)->mode & V7FS_IFMT) == V7FS_IFDIR)
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#define v7fs_inode_isfile(i) (((i)->mode & V7FS_IFMT) == V7FS_IFREG)
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#define v7fs_inode_iscdev(i) (((i)->mode & V7FS_IFMT) == V7FS_IFCHR)
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#define v7fs_inode_isbdev(i) (((i)->mode & V7FS_IFMT) == V7FS_IFBLK)
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/* 2BSD extension (implementation is different) */
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#define v7fs_inode_islnk(i) (((i)->mode & V7FS_IFMT) == V7FSBSD_IFLNK)
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#define v7fs_inode_issock(i) (((i)->mode & V7FS_IFMT) == V7FSBSD_IFSOCK)
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/* NetBSD Extension */
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#define v7fs_inode_isfifo(i) (((i)->mode & V7FS_IFMT) == V7FSBSD_IFFIFO)
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__BEGIN_DECLS
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/* Free inode access ops. */
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int v7fs_inode_allocate(struct v7fs_self *, v7fs_ino_t *);
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void v7fs_inode_deallocate(struct v7fs_self *, v7fs_ino_t);
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/* Disk I/O ops. */
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int v7fs_inode_load(struct v7fs_self *, struct v7fs_inode *, v7fs_ino_t);
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int v7fs_inode_writeback(struct v7fs_self *, struct v7fs_inode *);
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void v7fs_inode_setup_memory_image(const struct v7fs_self *,
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struct v7fs_inode *, struct v7fs_inode_diskimage *);
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/* Check. */
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int v7fs_inode_number_sanity(const struct v7fs_superblock *, v7fs_ino_t);
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/* Util. */
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void v7fs_inode_chmod(struct v7fs_inode *, v7fs_mode_t);
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void v7fs_inode_dump(const struct v7fs_inode *);
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/* Loop over all inode in ilist. */
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int v7fs_ilist_foreach(struct v7fs_self *, int (*)(struct v7fs_self *, void *,
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struct v7fs_inode *, v7fs_ino_t), void *);
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__END_DECLS
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#endif /*!_V7FS_INODE_H_ */
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