Module message

Low-level message sent over the wire, as defined in the specification.

TODO Update this All of these messages are sent over a bidirectional QUIC stream. This introduces some head-of-line blocking but preserves ordering. The only exception are OBJECT “messages”, which are sent over dedicated QUIC streams.

Messages sent by the publisher:

• Announce
• Unannounce
• SubscribeOk
• SubscribeError
• [SubscribeReset]
• [Object]

Messages sent by the subscriber:

• Subscribe
• SubscribeUpdate
• Unsubscribe
• AnnounceOk
• AnnounceError

Example flow:

 -> ANNOUNCE        namespace="foo"
 <- ANNOUNCE_OK     namespace="foo"
 <- SUBSCRIBE       id=0 namespace="foo" name="bar"
 -> SUBSCRIBE_OK    id=0
 -> OBJECT          id=0 sequence=69 priority=4 expires=30
 -> OBJECT          id=0 sequence=70 priority=4 expires=30
 -> OBJECT          id=0 sequence=70 priority=4 expires=30
 <- SUBSCRIBE_STOP  id=0
 -> SUBSCRIBE_RESET id=0 code=206 reason="closed by peer"

Structs

• Announce
  Sent by the publisher to announce the availability of a group of tracks.
• AnnounceCancel
  Sent by the subscriber to reject an Announce after ANNOUNCE_OK
• AnnounceError
  Sent by the subscriber to reject an Announce.
• AnnounceOk
  Sent by the subscriber to accept an Announce.
• GoAway
  Sent by the server to indicate that the client should connect to a different server.
• Subscribe
  Sent by the subscriber to request all future objects for the given track.
• SubscribeDone
  Sent by the publisher to cleanly terminate a Subscribe.
• SubscribeError
  Sent by the publisher to reject a Subscribe.
• SubscribeOk
  Sent by the publisher to accept a Subscribe.
• SubscribePair
• SubscribeUpdate
  Sent by the subscriber to request all future objects for the given track.
• TrackStatus
• TrackStatusRequest
• Unannounce
  Sent by the publisher to terminate an Announce.
• Unsubscribe
  Sent by the subscriber to terminate a Subscribe.

Enums

• FilterType
  Filter Types https://www.ietf.org/archive/id/draft-ietf-moq-transport-04.html#name-filter-types
• GroupOrder
  Group Order https://www.ietf.org/archive/id/draft-ietf-moq-transport-05.html#section-6.4.2-4.6.1 https://www.ietf.org/archive/id/draft-ietf-moq-transport-05.html#priorities
• Message
  All supported message types.
• Publisher
• SubscribeLocation
  Signal where the subscription should begin, relative to the current cache.
• Subscriber
• TrackStatusCode
  Track Status Codes https://www.ietf.org/archive/id/draft-ietf-moq-transport-04.html#name-track_status