Struct ResponseFrame 

pub struct ResponseFrame<'a> {
    pub status: u32,
    pub request_id: u64,
    pub payload: &'a [u8],
}

Decoded response frame with request ID for request-response correlation (the server framing).

Wire format: [status:4 LE][length:4 LE][request_id:8 LE][payload:N] where status = 0 for success, non-zero for error code.

Fields

status: u32

request_id: u64

payload: &'a [u8]

Implementations

impl<'a> ResponseFrame<'a>

pub const HEADER_SIZE: usize = 16

Size of the frame header: [status:4][length:4][request_id:8].

pub fn decode(buf: &'a [u8]) -> Result<(Self, usize), WireError>

Decode a response frame from a complete buffer.

The length field covers request_id(8) + payload(N).

Errors

Returns WireError::UnexpectedEof if the buffer is too short.

pub fn encode_ok( request_id: u64, payload: &[u8], out: &mut BytesMut, ) -> Result<(), WireError>

Encode a successful response with payload.

The length field = 8 (request_id) + payload.len().

Errors

Returns WireError::PayloadTooLarge if payload exceeds u32 capacity.

pub fn encode_error(status: NonZeroU32, request_id: u64, out: &mut BytesMut)

Encode an error response (status code, no payload, preserves request_id).

pub const fn is_ok(&self) -> bool

Returns true if this is a success response.

pub const fn encoded_size(payload_len: usize) -> Option<usize>

Total encoded size for a given payload length.

Returns None if HEADER_SIZE + payload_len overflows usize.

Trait Implementations

impl<'a> Debug for ResponseFrame<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.