Struct ext2::inode::InodeBlock

#[repr(C)]
pub(crate) struct InodeBlock(pub [u8; 60]);

Represents 60-byte region for block in Inode. This region is used for various ways depending on the file type. For regular files and directories, it’s used for storing 32-bit indices of blocks.

This is a wrapper of [u8; 60] to implement Default manually.

Tuple Fields

0: [u8; 60]

Implementations

impl InodeBlock

pub const NUM_DIRECT_BLOCKS: usize = 12usize

const INDIRECT_BLOCK_TABLE_ID: usize = 12usize

const DOUBLE_INDIRECT_BLOCK_TABLE_ID: usize = 13usize

pub fn set_block_id(&mut self, index: usize, block_id: &BlockId) -> Result<()>

Set a block id at the given index.

pub fn set_direct_blocks_from( &mut self, start_idx: usize, block_ids: &[BlockId] ) -> Result<()>

Set an array of direct block IDs.

pub fn set_direct_blocks(&mut self, block_ids: &[BlockId]) -> Result<()>

Set an array of direct block IDs.

pub fn set_indirect_block_table(&mut self, block_id: &BlockId) -> Result<()>

Set a block id to be used as the indirect block table.

pub fn set_double_indirect_block_table( &mut self, block_id: &BlockId ) -> Result<()>

Set a block id to be used as the double indirect block table.

pub const fn max_inline_symlink_len() -> usize

Returns the max length of symbolic links that can be stored in the inode data. This length contains the trailing \0.

pub fn set_inline_symlink(&mut self, symlink: &str) -> Result<()>

Stores a given string as an inlined symbolic link data.

Trait Implementations

impl AsBytes for InodeBlock

where [u8; 60]: AsBytes, HasPadding<InodeBlock, { _ }>: ShouldBe<false>,

fn as_bytes(&self) -> &[u8]

Gets the bytes of this value.

fn as_bytes_mut(&mut self) -> &mut [u8]

where Self: FromBytes,

Gets the bytes of this value mutably.

fn write_to(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to bytes.

fn write_to_prefix(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to the prefix of bytes.

fn write_to_suffix(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to the suffix of bytes.

impl Clone for InodeBlock

fn clone(&self) -> InodeBlock

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for InodeBlock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for InodeBlock

fn default() -> Self

Returns the “default value” for a type.

impl FromBytes for InodeBlock

where [u8; 60]: FromBytes,

fn ref_from(bytes: &[u8]) -> Option<&Self>

where Self: Sized,

Interprets the given bytes as a &Self without copying.

fn ref_from_prefix(bytes: &[u8]) -> Option<&Self>

where Self: Sized,

Interprets the prefix of the given bytes as a &Self without copying.

fn ref_from_suffix(bytes: &[u8]) -> Option<&Self>

where Self: Sized,

Interprets the suffix of the given bytes as a &Self without copying.

fn mut_from(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + AsBytes,

Interprets the given bytes as a &mut Self without copying.

fn mut_from_prefix(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + AsBytes,

Interprets the prefix of the given bytes as a &mut Self without copying.

fn mut_from_suffix(bytes: &mut [u8]) -> Option<&mut Self>

where Self: Sized + AsBytes,

Interprets the suffix of the given bytes as a &mut Self without copying.

fn slice_from(bytes: &[u8]) -> Option<&[Self]>

where Self: Sized,

Interprets the given bytes as a &[Self] without copying.

fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>

where Self: Sized,

Interprets the prefix of the given bytes as a &[Self] with length equal to count without copying.

fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>

where Self: Sized,

Interprets the suffix of the given bytes as a &[Self] with length equal to count without copying.

fn mut_slice_from(bytes: &mut [u8]) -> Option<&mut [Self]>

where Self: Sized + AsBytes,

Interprets the given bytes as a &mut [Self] without copying.

fn mut_slice_from_prefix( bytes: &mut [u8], count: usize ) -> Option<(&mut [Self], &mut [u8])>

where Self: Sized + AsBytes,

Interprets the prefix of the given bytes as a &mut [Self] with length equal to count without copying.

fn mut_slice_from_suffix( bytes: &mut [u8], count: usize ) -> Option<(&mut [u8], &mut [Self])>

where Self: Sized + AsBytes,

Interprets the suffix of the given bytes as a &mut [Self] with length equal to count without copying.

fn read_from(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from bytes.

fn read_from_prefix(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the prefix of bytes.

fn read_from_suffix(bytes: &[u8]) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the suffix of bytes.

impl FromZeroes for InodeBlock

where [u8; 60]: FromZeroes,

fn zero(&mut self)

Overwrites self with zeroes.

fn new_zeroed() -> Self

where Self: Sized,

Creates an instance of Self from zeroed bytes.

impl Copy for InodeBlock