58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
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#ifndef _MINIX_VTREEFS_H
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#define _MINIX_VTREEFS_H
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struct inode;
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typedef int index_t;
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typedef void *cbdata_t;
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#define NO_INDEX ((index_t) -1)
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/* Maximum file name length, excluding terminating null character. It is set
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* to a low value to limit memory usage, but can be changed to any value.
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*/
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#define PNAME_MAX 24
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struct inode_stat {
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mode_t mode; /* file mode (type and permissions) */
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uid_t uid; /* user ID */
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gid_t gid; /* group ID */
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off_t size; /* file size */
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dev_t dev; /* device number (for char/block type files) */
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};
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struct fs_hooks {
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void (*init_hook)(void);
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void (*cleanup_hook)(void);
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int (*lookup_hook)(struct inode *inode, char *name, cbdata_t cbdata);
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int (*getdents_hook)(struct inode *inode, cbdata_t cbdata);
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int (*read_hook)(struct inode *inode, off_t offset, char **ptr,
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size_t *len, cbdata_t cbdata);
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int (*rdlink_hook)(struct inode *inode, char *ptr, size_t max,
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cbdata_t cbdata);
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int (*message_hook)(message *m);
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};
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extern struct inode *add_inode(struct inode *parent, char *name, index_t index,
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struct inode_stat *stat, index_t nr_indexed_entries, cbdata_t cbdata);
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extern void delete_inode(struct inode *inode);
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extern struct inode *get_inode_by_name(struct inode *parent, char *name);
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extern struct inode *get_inode_by_index(struct inode *parent, index_t index);
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extern char const *get_inode_name(struct inode *inode);
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extern index_t get_inode_index(struct inode *inode);
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extern cbdata_t get_inode_cbdata(struct inode *inode);
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extern struct inode *get_root_inode(void);
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extern struct inode *get_parent_inode(struct inode *inode);
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extern struct inode *get_first_inode(struct inode *parent);
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extern struct inode *get_next_inode(struct inode *previous);
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extern void get_inode_stat(struct inode *inode, struct inode_stat *stat);
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extern void set_inode_stat(struct inode *inode, struct inode_stat *stat);
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extern void start_vtreefs(struct fs_hooks *hooks, unsigned int nr_inodes,
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struct inode_stat *stat, index_t nr_indexed_entries);
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#endif /* _MINIX_VTREEFS_H */
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