Enum Extent

pub enum Extent {
    Owned(Bytes),
    Cloned(Cloned),
    Hole(u64),
}

A single piece of data that makes up a file. Immutable but can be composed with other Extents in order to implement mutable files on top of immutable extent chunks.

Variants

Owned(Bytes)

The source-of-truth for this data is the file that contains it. It originated from a write to that File, not a clone from another.

Cloned(Cloned)

This extent came from part of another File.

Hole(u64)

This extent was created with ‘truncate’ and is actually empty

Implementations

impl Extent

pub fn len(&self) -> u64

pub fn is_empty(&self) -> bool

pub fn data(&self) -> &[u8]

pub fn bytes(&self) -> Bytes

Trait Implementations

impl Clone for Extent

fn clone(&self) -> Extent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Extent

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

Formats the value using the given formatter.

impl<T> From<T> for Extent

where T: Into<Bytes>,

fn from(t: T) -> Self

Converts to this type from the input type.

impl PartialEq for Extent

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Extent

impl StructuralPartialEq for Extent