Struct PeerReachability 

pub struct PeerReachability {
    pub name: String,
    pub reachable: bool,
    pub rtt_ms: Option<u64>,
    pub age_secs: Option<u64>,
    pub meta: String,
    pub principal: Option<String>,
    pub path: PeerPath,
}

Advisory reachability of a paired peer (pairing-mode liveness). Surface-clean: a nickname, a bool, latency/age NUMBERS, the stable eid: principal (#42), and since #64 the PATH KIND — direct vs relay, plus the relay URL when relayed. Never a socket address, an IP, or a key: the path field says WHICH KIND of route is in use, never where the peer is.

Fields

name: String

reachable: bool

rtt_ms: Option<u64>

age_secs: Option<u64>

meta: String

The peer’s OPTIONAL app metadata (#40) — the same opaque ≤256B blob #39 exposes via presence, here carried on the pairing-mode mcpmesh/ping/1 probe pong so PAIRED peers (which have no presence gossip) see it too. Empty when the peer set none. Advisory display data; never an authz input. Near-real-time when status is read (the probe cache has a ~20s TTL), not a steady push. Additive: default + skip-if-empty.

principal: Option<String>

The peer’s stable DEVICE principal eid:<hex> (#42) — the SAME rendering as PeerInfo::principal, so an embedder joins probe result + meta (app version) to a peer by the AUTHENTICATED endpoint rather than the non-unique nickname. Always present for a real row (Option only for additive round-trip). Machine-surface authz vocabulary — the human status reachability line is unchanged. Additive: #[serde(default, skip_serializing_if = "Option::is_none")].

path: PeerPath

HOW this peer is reached (#64) — see PeerPath. Captured by the same probe that sets reachable/rtt_ms, so it shares their freshness: one TTL, one age_secs. Unknown for a peer never probed. Additive (#[serde(default)]), so older rows and clients are unaffected.

Trait Implementations

impl Clone for PeerReachability

fn clone(&self) -> PeerReachability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PeerReachability

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PeerReachability

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for PeerReachability

impl PartialEq for PeerReachability

fn eq(&self, other: &PeerReachability) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for PeerReachability

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for PeerReachability