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

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

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.

Unmapped

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

Unmapped sectors read as zero.

Fields

length: u64

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.