Module codec 

Length-prefixed frame codec for reading and writing protocol messages.

Wire format: [len: u32 BE][id: u32 BE][flags: u8][CBOR(v, t, p)]

The correlation ID and flags sit in a fixed-position binary header so that relay intermediaries can route frames without CBOR parsing.

Structs

RawFrame

A frame with the binary header parsed but the CBOR body left untouched.

Constants

MAX_FRAME_SIZE

Maximum allowed frame size (4 MiB).

Functions

decode_message_frame

Decodes one complete length-prefixed frame from a borrowed byte slice.

encode_raw_to_buf

Encodes a raw frame to a byte buffer using the length-prefixed format.

encode_to_buf

Encodes a message to a byte buffer using the length-prefixed frame format.

raw_frame_to_message

Decodes a RawFrame into a typed Message by CBOR-deserializing the body.

read_message

Reads a length-prefixed message from the given reader.

read_raw_frame

Reads a length-prefixed raw frame from the given reader.

try_decode_from_buf

Tries to decode a complete message from a byte buffer.

try_decode_raw_from_buf

Tries to decode a complete raw frame from a byte buffer.

write_message

Writes a length-prefixed message to the given writer.

write_raw_frame

Writes a length-prefixed raw frame to the given writer.