Module draft11 

MoQT client implementation for draft-11.

Each draft lives in its own top-level module with a complete, independent implementation: connection, endpoint state machine, event types, observer trait, and per-flow state machines (subscribe, fetch, announce, track status). No code is shared across drafts — each draft carries its own copy because wire-level differences would make a shared layer leaky.

Enable via the draft11 feature.

Differences from draft-10

Draft-11 is a structural change from draft-10. The most visible shifts:

• subscribe_id is renamed to request_id throughout the control plane.
• MAX_SUBSCRIBE_ID / SUBSCRIBES_BLOCKED become MAX_REQUEST_ID / REQUESTS_BLOCKED.
• Subscribe gains a forward field; group_order and filter_type are carried as VarInts rather than typed enums.
• SubscribeOk collapses the largest group/object pair into a single optional largest_location; SubscribeError gains a trailing track_alias; SubscribeDone gains stream_count.
• Announce / AnnounceOk / AnnounceError and SubscribeAnnounces* use request_id instead of carrying the namespace on every reply.
• TrackStatusRequest / TrackStatus are request-id keyed and TrackStatus no longer echoes the track namespace / name; it carries a largest_location.
• Fetch is restructured into a FetchPayload enum (Standalone vs Joining); FetchOk uses a single end_location and adds end_of_track.
• The data-stream layer adds subgroup variants 0x08–0x0D, datagram types 0x00–0x03, and per-object extension headers.

Modules

connection

Outbound MoQT connection with MoQT framing over QUIC.

endpoint

Unified endpoint state machine orchestrating all MoQT protocol flows.

event

Client event types emitted via the observer. Client event types emitted by a draft-11 MoQT connection.

fetch

Fetch lifecycle state machine.

namespace

Announce / SubscribeAnnounces state machines.

observer

Connection observer trait for receiving client events. Connection observer trait for receiving structured events.

session

Session state, setup validation, and request ID allocation. MoQT session lifecycle management (draft-11).

subscription

Subscription lifecycle state machine.

track_status

Track status lifecycle state machine.