Module engine 

Structs

EngineInner

Shared tables owned by the engine, accessible to all tasks via Arc.

FaceCounters

Per-face packet and byte counters. All fields are AtomicU64, updated by the pipeline without holding any lock.

FaceState

Per-face lifecycle state stored alongside the cancellation token.

ForwarderEngine

Handle to a running forwarding engine.

ShutdownHandle

Handle to gracefully shut down the engine.

Constants

DEFAULT_SEND_QUEUE_CAP

Default outbound send queue capacity per face.