Struct ChunkMeta 

struct ChunkMeta {
    pool: Arc<PoolInner>,
    len: usize,
    class: Option<usize>,
    depth: u8,
    codec: &'static dyn ExtentCodec,
    state: Mutex<ChunkState>,
}

Available on Unix and crate feature pool only.

Fields

pool: Arc<PoolInner>

len: usize

Length in u64 words; immutable.

class: Option<usize>

Size class for slot allocations; None for empty chunks and payloads beyond the largest class. Immutable: the chunk’s slot comes and goes with residency, but it is always drawn from this class.

depth: u8

The insert-time ChunkHints depth; immutable. Names the eviction band the chunk’s queue entries belong to.

codec: &'static dyn ExtentCodec

The insert-time ExtentCodec; immutable. Encodes the chunk when it is backed and decodes its extent on reads, so it must outlive any extent it produced, hence 'static.

state: Mutex<ChunkState>

Implementations

impl ChunkMeta

fn new( pool: &Arc<PoolInner>, len: usize, class: Option<usize>, depth: u8, codec: &'static dyn ExtentCodec, residency: Residency, slot: Option<u32>, oversize: Option<Vec<u64>>, ) -> ChunkMeta

A fresh chunk in its insert-time state.

fn len_bytes(&self) -> usize

fn state(&self) -> MutexGuard<'_, ChunkState>

Locks the chunk’s state.

Trait Implementations

impl Debug for ChunkMeta

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

Formats the value using the given formatter.