Struct MllpFormatter 

pub struct MllpFormatter;

Implementations

impl MllpFormatter

pub fn encode(payload: &[u8]) -> Vec<u8>

pub fn decode(framed: &[u8]) -> Result<&[u8], OperationOutcomeError>

Decodes an MLLP-framed message and returns the enclosed payload.

Errors

Returns an [OperationOutcomeError] if framed is not a valid MLLP frame, that is, if it is shorter than the minimum frame length or does not start with <SB> and end with <EB><CR>.

pub fn ack() -> [u8; 4]

pub fn nak() -> [u8; 4]

pub fn is_ack(bytes: &[u8]) -> bool

pub fn is_nak(bytes: &[u8]) -> bool

pub fn read_frame<R: Read>( reader: &mut R, ) -> Result<Vec<u8>, OperationOutcomeError>

Reads a single MLLP frame from reader, returning the raw framed bytes, including the START_BLOCK, END_BLOCK, and CARRIAGE_RETURN delimiters.

Errors

Returns an [OperationOutcomeError] if:

• the stream ends before a complete MLLP frame is received,
• the frame does not begin with START_BLOCK, or
• an I/O error occurs while reading from the stream.