Struct Checkpoint 

pub struct Checkpoint {
    pub shard_id: u32,
    pub durable_lsn: u64,
    pub gc_watermark: u64,
    pub published_at_ms: u64,
}

A published durability checkpoint: the durable LSN (header), the GC floor, and the wall-clock time the checkpoint was published. The record’s frame checksum makes a torn/partial checkpoint fail verification on load.

Fields

shard_id: u32

Physical shard this checkpoint belongs to.

durable_lsn: u64

Durable LSN covered by this checkpoint.

gc_watermark: u64

GC floor that must remain readable.

published_at_ms: u64

Wall-clock time the checkpoint was published, in ms since epoch.

Trait Implementations

impl Clone for Checkpoint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Checkpoint

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

Formats the value using the given formatter.

impl Eq for Checkpoint

impl PartialEq for Checkpoint

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Checkpoint