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