30 lines
975 B
C
Executable file
30 lines
975 B
C
Executable file
#ifndef FILESYS_DIRECTORY_H
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#define FILESYS_DIRECTORY_H
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#include <stdbool.h>
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#include <stddef.h>
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#include "devices/block.h"
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/* Maximum length of a file name component.
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This is the traditional UNIX maximum length.
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After directories are implemented, this maximum length may be
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retained, but much longer full path names must be allowed. */
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#define NAME_MAX 14
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struct inode;
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/* Opening and closing directories. */
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bool dir_create (block_sector_t sector, size_t entry_cnt);
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struct dir *dir_open (struct inode *);
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struct dir *dir_open_root (void);
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struct dir *dir_reopen (struct dir *);
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void dir_close (struct dir *);
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struct inode *dir_get_inode (struct dir *);
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/* Reading and writing. */
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bool dir_lookup (const struct dir *, const char *name, struct inode **);
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bool dir_add (struct dir *, const char *name, block_sector_t);
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bool dir_remove (struct dir *, const char *name);
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bool dir_readdir (struct dir *, char name[NAME_MAX + 1]);
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#endif /* filesys/directory.h */
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