Struct Isp1Frame 

pub struct Isp1Frame;

An ISP1 length-prefixed frame.

The wire format is simply [u32 BE length][payload] where length is the number of payload bytes (not including itself).

Implementations

impl Isp1Frame

pub fn encode(payload: &[u8], buf: &mut [u8]) -> Result<usize, SleError>

Encodes an ISP1 frame by writing the 4-byte length prefix followed by the payload into buf.

Returns the total number of bytes written (4 + payload.len()).

pub fn decode_header(buf: &[u8]) -> Result<(usize, usize), SleError>

Reads the 4-byte length prefix from buf, returning the payload length. Does not validate or consume the payload — the caller should read that many bytes next.

Returns (payload_length, bytes_consumed) where bytes_consumed is always 4.

pub fn decode(buf: &[u8]) -> Result<&[u8], SleError>

Decodes a complete ISP1 frame (header + payload) from buf, returning a slice of the payload.