Listener-side moq-lite (Lite-03) session that wraps a
WebTransportSession and exposes:
- announce(prefix) — opens an Announce bidi with
ControlType=Announce + AnnouncePlease(prefix), surfaces a flow
of relay Announce updates (Active/Ended)
- subscribe(broadcast, track, ...) — opens a Subscribe bidi with
ControlType=Subscribe + body, reads the size-prefixed response,
returns a MoqLiteSubscribeHandle whose frames flow yields each
frame the publisher pushes
- close() — cancels pumps, FINs every active subscribe bidi
(moq-lite UNSUBSCRIBE is "FIN the bidi"), closes the transport
Group demux: a single inbound-uni-stream pump per session reads the
DataType byte (Group=0) + size-prefixed group header, then routes
each subsequent (size, payload) frame to the matching
subscriptionsBySubscribeId entry's frame channel.
Speaker side stops at the announce/subscribe interface — moq-lite
publisher flows depend on accept_bi() / server-initiated bidi
streams (see clarifying agent summary in plans/2026-04-26-moq-lite-gap.md).
That's a follow-up; the WebTransportSession interface needs an
acceptBidiStream() method first.
FakeWebTransport.openPeerUniStream() — new helper so tests can
inject group data from the peer side without going through the
session's outbound uni stream API.
Tests in MoqLiteSessionTest — runBlocking-based (not runTest) so
real-time channel coordination works without virtual-time
artifacts:
- subscribe_writes_request_and_returns_handle_on_ok
- subscribe_throws_on_drop_response
- announce_streams_relay_updates
- groups_are_demuxed_by_subscribeId (no cross-talk)
- unsubscribe_FINs_the_subscribe_bidi
Claude
4e136cacf4