52 lines
2.4 KiB
C
52 lines
2.4 KiB
C
/* $NetBSD: v7fs_datablock.h,v 1.2 2011/07/16 12:35:32 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_DATABLOCK_H_
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#define _V7FS_DATABLOCK_H_
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__BEGIN_DECLS
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bool datablock_number_sanity(const struct v7fs_self *, v7fs_daddr_t);
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int v7fs_datablock_allocate(struct v7fs_self *, v7fs_daddr_t *);
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int v7fs_datablock_foreach(struct v7fs_self *, struct v7fs_inode *,
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int (*)(struct v7fs_self *, void *, v7fs_daddr_t, size_t), void *);
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v7fs_daddr_t v7fs_datablock_last(struct v7fs_self *, struct v7fs_inode *,
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v7fs_off_t);
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int v7fs_datablock_expand(struct v7fs_self *, struct v7fs_inode *, size_t);
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int v7fs_datablock_contract(struct v7fs_self *, struct v7fs_inode *, size_t);
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int v7fs_datablock_size_change(struct v7fs_self *, size_t, struct v7fs_inode *);
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struct v7fs_daddr_map {
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int level; /* direct, index1, index2, index3 */
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v7fs_daddr_t index[3];
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};
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int v7fs_datablock_addr(size_t, struct v7fs_daddr_map *);
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__END_DECLS
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#endif /*!_V7FS_INODE_H_ */
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