Struct DeviceExtent 

pub struct DeviceExtent {
    pub chunk_tree: u64,
    pub chunk_objectid: u64,
    pub chunk_offset: u64,
    pub length: u64,
    pub chunk_tree_uuid: Uuid,
}

Device extent, mapping a physical range on a device to a chunk.

Key: (devid, DEV_EXTENT, physical_offset). The inverse of a chunk stripe: given a device and physical offset, find the owning chunk.

Fields

chunk_tree: u64

Objectid of the chunk tree (always 3).

chunk_objectid: u64

Objectid of the owning chunk.

chunk_offset: u64

Logical offset of the owning chunk.

length: u64

Length of this device extent in bytes.

chunk_tree_uuid: Uuid

UUID of the chunk tree.

Implementations

impl DeviceExtent

pub fn parse(data: &[u8]) -> Option<Self>

Parse a device extent from a raw byte buffer.

Trait Implementations

impl Clone for DeviceExtent

fn clone(&self) -> DeviceExtent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeviceExtent

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

Formats the value using the given formatter.