Struct Extents 

pub struct Extents { /* private fields */ }

The allocated-extent map of a source, so callers skip zero/sparse runs on TB-scale images. A container reader reports real allocated runs; the default is one dense extent covering the whole stream.

Implementations

impl Extents

pub fn dense(len: u64) -> Self

One extent covering [0, len) — the “everything is allocated” default.

pub fn from_runs(runs: Vec<Extent>) -> Self

Build from explicit runs.

pub fn runs(&self) -> &[Extent]

The runs, in address order as supplied.

pub fn allocated_len(&self) -> u64

Total allocated bytes across all runs (saturating).

pub fn is_empty(&self) -> bool

True when there are no allocated runs.

Trait Implementations

impl Clone for Extents

fn clone(&self) -> Extents

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Extents

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

Formats the value using the given formatter.

impl Default for Extents

fn default() -> Extents

Returns the “default value” for a type.

impl Eq for Extents

impl PartialEq for Extents

fn eq(&self, other: &Extents) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Extents