Struct CacheSnapshot 

pub struct CacheSnapshot {
    pub name: String,
    pub current_bytes: u64,
    pub previous_max_bytes: u64,
    pub new_max_bytes: u64,
    pub hit_rate: Option<f64>,
}

Per-cache slice of a BudgetSnapshot.

Fields

name: String

Cache name (Resizable::name).

current_bytes: u64

Bytes currently held by the cache when the tick fired.

previous_max_bytes: u64

Cap before this tick reapportioned.

new_max_bytes: u64

Cap installed by this tick.

hit_rate: Option<f64>

Most recent hit rate; None if no lookups yet.

Implementations

impl CacheSnapshot

pub fn delta_bytes(&self) -> i64

Signed cap change this tick (new_max_bytes − previous_max_bytes). Negative on shrink, positive on grow, zero on hold or skip.

Logged as delta_bytes on each per-cache emission so post-mortem analysis can grep for nonzero deltas directly without doing arithmetic.

Returns i64::MAX / i64::MIN on extreme cases where the difference would not fit in i64 — practically unreachable (caps are bounded by MEMORY_BUDGET_TARGET_MIB, not u64::MAX) but the saturation keeps the math total.

Trait Implementations

impl Clone for CacheSnapshot

fn clone(&self) -> CacheSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheSnapshot

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

Formats the value using the given formatter.