Struct PathState 

pub struct PathState {
    pub path_id: u8,
    pub rtt_ms: AtomicU32,
    pub loss_pct: AtomicU8,
    pub last_packet_seen: RwLock<Option<Instant>>,
    /* private fields */
}

Available on crate feature std only.

Per-path bookkeeping. Lives inside PathRegistry.

Fields

path_id: u8

rtt_ms: AtomicU32

EMA-smoothed RTT estimate for this path, in milliseconds. Reserved per-path telemetry slot — currently unwired: live RTT/loss for the active path is tracked by the BBR BandwidthEstimator, not here (the multipath scheduler that would have fed these is vestigial; the project does single-path connection migration, not aggregation).

loss_pct: AtomicU8

Smoothed loss percentage (0-100) for this path. Reserved, currently unwired — see rtt_ms above.

last_packet_seen: RwLock<Option<Instant>>

Wall-clock instant of the most recent packet observed on this path. Used by the timeout sweep.

Implementations

impl PathState

pub fn state(&self) -> PathStateKind

pub fn mark_seen(&self)

Mark this path as having just observed a packet. Updates the last_packet_seen timestamp; cheap enough to call per-packet.