Struct CheckpointState 

pub struct CheckpointState {
    pub total_frames: u32,
    pub backfilled_frames: u32,
    pub oldest_reader_frame: Option<u32>,
}

Snapshot of WAL checkpoint state used to compute a mode plan.

Fields

total_frames: u32

Highest valid WAL frame index (mxFrame equivalent).

backfilled_frames: u32

Already backfilled frame count (nBackfill equivalent).

oldest_reader_frame: Option<u32>

Oldest active reader end mark frame, if any reader is active.

None means no active readers currently pinning the WAL tail.

Implementations

impl CheckpointState

pub fn normalized(self) -> Self

Normalize counters to a consistent state before planning.

pub fn remaining_frames(self) -> u32

Number of frames still pending backfill.

Trait Implementations

impl Clone for CheckpointState

fn clone(&self) -> CheckpointState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CheckpointState

impl Debug for CheckpointState

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

Formats the value using the given formatter.

impl Eq for CheckpointState

impl PartialEq for CheckpointState

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CheckpointState