Struct BlockGroupItem 

pub struct BlockGroupItem {
    pub used: u64,
    pub chunk_objectid: u64,
    pub flags: BlockGroupFlags,
}

Block group descriptor, tracking space usage for a chunk.

Key: (logical_offset, BLOCK_GROUP_ITEM, length).

Fields

used: u64

Bytes used within this block group.

chunk_objectid: u64

Objectid of the chunk that backs this block group.

flags: BlockGroupFlags

Type and RAID profile flags (DATA, METADATA, SYSTEM, DUP, RAID*, etc.).

Implementations

impl BlockGroupItem

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

Parse a block group item from a raw byte buffer.

pub fn to_bytes(&self) -> Vec<u8>

Serialize to the 24-byte on-disk representation.

Trait Implementations

impl Clone for BlockGroupItem

fn clone(&self) -> BlockGroupItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockGroupItem

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

Formats the value using the given formatter.