Struct Extent 

pub struct Extent {
    pub logical_block: u32,
    pub length: u16,
    pub physical_block: u64,
    pub uninitialized: bool,
}

Leaf extent: maps [ee_block, ee_block+ee_len) logical to physical.

Fields

logical_block: u32

First logical block number covered by this extent.

length: u16

Number of contiguous blocks (after masking the uninit flag).

physical_block: u64

Physical block where the data lives (assembled from hi/lo).

uninitialized: bool

True if this extent is a pre-allocated hole (reads return zeros).

Implementations

impl Extent

pub fn parse(raw: &[u8]) -> Result<Self>

pub fn contains(&self, logical: u64) -> bool

Does this extent cover the given logical block?

pub fn map(&self, logical: u64) -> u64

Physical block corresponding to logical (caller must check contains()).

Trait Implementations

impl Clone for Extent

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Extent

impl Debug for Extent

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

Formats the value using the given formatter.