Module draft09 

MoQT client implementation for draft-09.

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 draft09 feature.

Differences from draft-08

• Object headers on data streams now carry extension_headers_length (byte count) instead of extension_count (item count).
• Datagram (stream type 0x01) no longer has payload_length or object_status; payload is the remaining bytes of the datagram.
• DatagramStatus (stream type 0x02) gains extension_headers_length.
• filter_type = 1 (NextGroupStart / LatestGroup) is rejected on decode in SUBSCRIBE.

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-09 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 subscribe ID allocation. MoQT session lifecycle management (draft-09).

subscription

Subscription lifecycle state machine.

track_status

Track status lifecycle state machine.