Module data_stream 

Draft-08 data stream header encoding and decoding.

Differences from draft-07:

• Object headers include extension_count (varint) + raw extension bytes
• Separate DatagramStatus type (0x02) for status-only datagrams
• Datagram (0x01) includes extension_count + payload

Structs

DatagramHeader

Datagram header with payload (draft-08, type 0x01).

DatagramStatusHeader

Datagram status header (draft-08, type 0x02).

FetchHeader

Fetch stream header (follows the stream type varint).

FetchObjectHeader

Object within a fetch stream (draft-08).

ObjectHeader

Object within a subgroup stream (draft-08).

SubgroupHeader

Subgroup stream header (follows the stream type varint).

Enums

Datagram

One datagram, of whichever shape its type field names.

StreamType

Every type ID this draft’s data plane assigns, from two separate tables.

Functions

check_end_of_track 🔒

Refuse an end-of-track object that does not end at object zero.

check_extension_count 🔒

Refuse an Extension Count that disagrees with the extension bytes beside it.

count_extensions 🔒

Count the extension headers in a raw block, or None if the bytes do not tile into whole headers.

datagram_type_error 🔒

Which failure a leading datagram type that is not one a reader wants is.

encode_extensions 🔒

Encode extension bytes back to the buffer.

skip_extensions 🔒

Skip over extensions in the buffer, reading extension_count varints.

stream_type_error 🔒

Which failure a leading unidirectional stream type that is not the one a reader wants is.