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  • v1229 07b792715f
    比较

    cog-ha-matter (ADR-116 P4): live mDNS responder + handle

    frostbyte_neo 发布于 2026-05-23 22:31:38 +00:00

    Closes the mDNS half of P4. runtime::start_mdns_responder binds
    multicast via mdns_sd::ServiceDaemon::new, builds the
    ServiceInfo from MdnsService::to_service_info (iter 9), and
    registers — returning a typed handle that owns both daemon and
    fullname.

    Handle shape:

    pub struct MdnsResponderHandle {
    daemon: ServiceDaemon,
    fullname: String,
    }

    impl MdnsResponderHandle {
    pub fn fullname(&self) -> &str;
    pub fn shutdown(self) -> Result<(), mdns_sd::Error>;
    }
    impl Drop for MdnsResponderHandle { /* best-effort */ }

    Why explicit shutdown + best-effort Drop: a clean shutdown
    sends a goodbye packet so HA's discovery integration sees the
    service leave (good UX — no stale device card). Drop is the
    fallback for panics / process termination but swallows errors
    since panicking-in-Drop would mask the real failure.

    1 new live-I/O test:

    • mdns_responder_fullname_concatenates_instance_and_service_type
      — actually binds multicast on the loopback adapter, registers,
      asserts the fullname contains _ruview-ha._tcp, then
      shutdown()s. Confirmed working on Windows; CI environments
      where multicast bind is filtered will hit the gracefully-
      skipping early return rather than failing the suite.

    64/64 cog tests green (63 → 64).

    ADR-116 P4: mDNS half ✅ (record-builder + ServiceInfo + live
    responder), witness half ✅ (chain + JSONL + file + Ed25519).
    Last piece is the embedded rumqttd broker so external mosquitto
    becomes optional.

    Co-Authored-By: claude-flow ruv@ruv.net

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