Struct BaselineStore 

pub struct BaselineStore<T> { /* private fields */ }

A fixed-capacity ring buffer of baselines keyed by tick.

Implementations

impl<T> BaselineStore<T>

pub fn new(capacity: NonZeroUsize) -> Self

Creates a new baseline store with the given capacity.

pub fn capacity(&self) -> usize

Returns the capacity of the store.

pub fn len(&self) -> usize

Returns the number of entries stored.

pub fn is_empty(&self) -> bool

Returns true if the store is empty.

pub fn insert( &mut self, tick: SnapshotTick, value: T, ) -> Result<(), BaselineError>

Inserts a new baseline at the given tick.

Ticks must be strictly increasing.

When the store is full, this overwrites the oldest entry and advances the head, making the inserted tick the newest entry immediately.

pub fn get(&self, tick: SnapshotTick) -> Option<&T>

Returns the baseline for an exact tick, if present.

pub fn latest_at_or_before( &self, tick: SnapshotTick, ) -> Option<(SnapshotTick, &T)>

Returns the latest baseline at or before the given tick.

This performs an O(capacity) scan and is intended for small windows.

pub fn iter(&self) -> impl DoubleEndedIterator<Item = (SnapshotTick, &T)>

Returns an iterator from oldest to newest.

Trait Implementations

impl<T: Debug> Debug for BaselineStore<T>

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

Formats the value using the given formatter.