dir_target_t Struct Reference

One resolved directory entry: where it is, and what is in it. More...

#include <ra8_fs_fat_types_internal.h>

Collaboration diagram for dir_target_t:

Data Fields
dir_loc_t	parent
	Directory the entry lives in.
uint64_t	lba
	Sector holding the entry.
uint32_t	off
	Byte offset within that sector.
uint8_t	entry [k_ra8_fs_dir_entry_bytes]
	The entry as read from disk.

Detailed Description

One resolved directory entry: where it is, and what is in it.

unlink, rmdir and rename all have to answer the same three questions before they touch anything – which directory holds the entry, which slot it is, and what the entry says – and all three then need the parent again to sweep up the long-name chain. Passing them as one value stops each verb inventing its own out-parameter quartet and forgetting one of them.

Invariant

entry is the 32 bytes currently on disk at (lba, off).

See also

priv_dir_erase_chain()

Since

0.1.0

Definition at line 630 of file ra8_fs_fat_types_internal.h.

Field Documentation

entry

uint8_t dir_target_t::entry[k_ra8_fs_dir_entry_bytes]

The entry as read from disk.

Definition at line 634 of file ra8_fs_fat_types_internal.h.

Referenced by internal_fat_rename(), internal_fat_rmdir(), internal_rmdir_locate(), and internal_unlink_locate().

lba

uint64_t dir_target_t::lba

Sector holding the entry.

Definition at line 632 of file ra8_fs_fat_types_internal.h.

Referenced by internal_fat_rename(), internal_fat_rmdir(), internal_rmdir_locate(), and internal_unlink_locate().

off

uint32_t dir_target_t::off

Byte offset within that sector.

Definition at line 633 of file ra8_fs_fat_types_internal.h.

Referenced by internal_fat_rename(), internal_fat_rmdir(), internal_rmdir_locate(), and internal_unlink_locate().

parent

dir_loc_t dir_target_t::parent

Directory the entry lives in.

Definition at line 631 of file ra8_fs_fat_types_internal.h.

Referenced by internal_fat_rename(), internal_fat_rmdir(), internal_rmdir_locate(), and internal_unlink_locate().

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The documentation for this struct was generated from the following file:

• libs/ra8_fs/src/ra8_fs_fat_types_internal.h