Struct ClassifierPool 

pub struct ClassifierPool { /* private fields */ }

Bounded pool of N independently-loaded classifiers.

See module docs for the invariants this type enforces.

Implementations

impl ClassifierPool

pub fn new<L>(capacity: usize, loader: L) -> Result<Self, NlError>

where L: FnMut() -> Result<IntentClassifier, NlError>,

Build a pool of capacity independently-loaded classifiers.

capacity is clamped into [POOL_MIN, POOL_MAX] (NFR-2). Calls loader exactly capacity times — see the pool invariant in the module-level docs.

Errors

Propagates the first NlError returned by loader. On failure the partially-built pool is dropped, releasing any already-loaded classifiers.

pub fn capacity(&self) -> usize

Pool capacity (post-clamp).

pub fn acquire(&self) -> PoolGuard<'_>

Acquire a slot, blocking the current thread until one is available. The returned PoolGuard returns the slot on drop (panic-safe via scopeguard::guard).

Panics

Panics only if the channel has been disconnected — which is impossible during normal use because the ClassifierPool itself owns the receiver, so the only way to disconnect it is to drop the pool. Acquiring a guard on a dropped pool would be a use-after-free style bug.

Trait Implementations

impl Debug for ClassifierPool

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

Formats the value using the given formatter.