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ll.h
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ll.h
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/*
* Copyright (c) 2012 Dave Vasilevsky <dave@vasilevsky.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SQFS_LL_H
#define SQFS_LL_H
#include "squashfuse.h"
#include <fuse_lowlevel.h>
typedef struct sqfs_ll sqfs_ll;
struct sqfs_ll {
sqfs fs;
/* Converting inodes between squashfs and fuse */
fuse_ino_t (*ino_fuse)(sqfs_ll *ll, sqfs_inode_id i);
sqfs_inode_id (*ino_sqfs)(sqfs_ll *ll, fuse_ino_t i);
/* Register a new inode, returning the fuse ID for it */
fuse_ino_t (*ino_register)(sqfs_ll *ll, sqfs_dir_entry *e);
void (*ino_forget)(sqfs_ll *ll, fuse_ino_t i, size_t refs);
/* Like register, but don't actually remember it */
fuse_ino_t (*ino_fuse_num)(sqfs_ll *ll, sqfs_dir_entry *e);
/* Private data, and how to destroy it */
void *ino_data;
void (*ino_destroy)(sqfs_ll *ll);
};
sqfs_err sqfs_ll_init(sqfs_ll *ll);
void sqfs_ll_destroy(sqfs_ll *ll);
/* Get an inode from an sqfs_ll */
sqfs_err sqfs_ll_inode(sqfs_ll *ll, sqfs_inode *inode, fuse_ino_t i);
/* Convenience function: Get both ll and inode, and handle errors */
#define SQFS_FUSE_INODE_NONE 0
typedef struct {
sqfs_ll *ll;
sqfs_inode inode;
} sqfs_ll_i;
sqfs_err sqfs_ll_iget(fuse_req_t req, sqfs_ll_i *lli, fuse_ino_t i);
int sqfs_ll_daemonize(int fg);
#endif