Enum qcow::Mapping

pub enum Mapping {
    Mapped {
        physical_offset: u64,
        length: u64,
    },
    Unmapped {
        length: u64,
    },
}

Describes how bytes for a region of disk are stored in the qcow translation table.

Variants

Mapped

Fields

physical_offset: u64

The physical offset (in the QCOW file) that maps to the requested guest offset.

length: u64

The mapping is valid for at least these many bytes. If length does not cover the range requested then a new translation should be requested for the range immediately following this one.

The requested guest cluster has a corresponding physical cluster specified in the translation table.

Unmapped

Fields

length: u64

The requested linear range is unmapped in the translation table for the next length bytes.

Unmapped sectors read as zero.

Implementations

impl Mapping

pub fn len(&self) -> u64

Trait Implementations

impl Clone for Mapping

fn clone(&self) -> Mapping

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mapping

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

Formats the value using the given formatter.