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/* |
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* dircache.h |
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* Copyright (C) 2002 Florin Malita <mali@go.ro> |
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* |
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* This file is part of LUFS, a free userspace filesystem implementation. |
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* See http://lufs.sourceforge.net/ for updates. |
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* |
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* LUFS is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* LUFS is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifndef _DIRCACHE_H_ |
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#define _DIRCACHE_H_ |
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|
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#include <fuse.h> |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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|
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#define NBUCKETS 7 |
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#define DEF_NENTRIES 6 |
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#define DEF_TTL 20 |
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|
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struct list_head; |
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|
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struct direntry{ |
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char *e_name; |
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char *e_link; |
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struct list_head e_list; |
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struct lufs_fattr e_attr; |
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}; |
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|
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struct directory{ |
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char *d_name; |
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struct list_head d_entries; |
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struct list_head d_list; |
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unsigned long d_stamp; |
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}; |
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|
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struct dir_cache{ |
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int ttl; |
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int entries; |
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pthread_mutex_t lock; |
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struct list_head buckets[NBUCKETS]; |
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int lengths[NBUCKETS]; |
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}; |
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|
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struct dir_cache* lu_cache_create(struct list_head*); |
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void lu_cache_destroy(struct dir_cache*); |
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|
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int lu_cache_lookup_file(struct dir_cache*, char*, struct lufs_fattr*, char*, int); |
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void lu_cache_add(struct dir_cache*, char*, char*, struct lufs_fattr*, char*); |
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int lu_cache_readdir(struct dir_cache *cache, char *dir, |
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fuse_dirh_t h, fuse_dirfil_t filler); |
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int lu_cache_invalidate(struct dir_cache*, char*); |
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|
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|
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#endif |
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