82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009, 2014
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* The President and Fellows of Harvard College.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _SFSPRIVATE_H_
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#define _SFSPRIVATE_H_
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#include <uio.h> /* for uio_rw */
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/* ops tables (in sfs_vnops.c) */
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extern const struct vnode_ops sfs_fileops;
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extern const struct vnode_ops sfs_dirops;
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/* Macro for initializing a uio structure */
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#define SFSUIO(iov, uio, ptr, block, rw) \
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uio_kinit(iov, uio, ptr, SFS_BLOCKSIZE, ((off_t)(block))*SFS_BLOCKSIZE, rw)
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/* Functions in sfs_balloc.c */
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int sfs_balloc(struct sfs_fs *sfs, daddr_t *diskblock);
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void sfs_bfree(struct sfs_fs *sfs, daddr_t diskblock);
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int sfs_bused(struct sfs_fs *sfs, daddr_t diskblock);
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/* Functions in sfs_bmap.c */
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int sfs_bmap(struct sfs_vnode *sv, uint32_t fileblock, bool doalloc,
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daddr_t *diskblock);
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int sfs_itrunc(struct sfs_vnode *sv, off_t len);
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/* Functions in sfs_dir.c */
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int sfs_dir_findname(struct sfs_vnode *sv, const char *name,
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uint32_t *ino, int *slot, int *emptyslot);
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int sfs_dir_link(struct sfs_vnode *sv, const char *name, uint32_t ino,
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int *slot);
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int sfs_dir_unlink(struct sfs_vnode *sv, int slot);
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int sfs_lookonce(struct sfs_vnode *sv, const char *name,
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struct sfs_vnode **ret,
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int *slot);
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/* Functions in sfs_inode.c */
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int sfs_sync_inode(struct sfs_vnode *sv);
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int sfs_reclaim(struct vnode *v);
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int sfs_loadvnode(struct sfs_fs *sfs, uint32_t ino, int forcetype,
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struct sfs_vnode **ret);
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int sfs_makeobj(struct sfs_fs *sfs, int type, struct sfs_vnode **ret);
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int sfs_getroot(struct fs *fs, struct vnode **ret);
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/* Functions in sfs_io.c */
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int sfs_readblock(struct sfs_fs *sfs, daddr_t block, void *data, size_t len);
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int sfs_writeblock(struct sfs_fs *sfs, daddr_t block, void *data, size_t len);
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int sfs_io(struct sfs_vnode *sv, struct uio *uio);
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int sfs_metaio(struct sfs_vnode *sv, off_t pos, void *data, size_t len,
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enum uio_rw rw);
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#endif /* _SFSPRIVATE_H_ */
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