Enum NegotiationError 

pub enum NegotiationError {
    Io(Error),
    ConnectionClosed,
    FrameTooLarge(u32),
    Json(Error),
}

Errors from the negotiation framing reader/writer.

ConnectionClosed is returned (rather than Io) when read_frame hits a clean UnexpectedEof reading either the length prefix or the body — the peer closed the stream cleanly rather than failing the transport.

Variants

Io(Error)

Underlying transport I/O error (not a clean EOF).

ConnectionClosed

The peer closed the stream cleanly (unexpected EOF on the length prefix or the body).

FrameTooLarge(u32)

The frame length exceeded MAX_CHUNK_LEN. A malformed length prefix can’t trigger an oversized allocation.

Json(Error)

JSON parse error on the negotiation frame or error response.

Trait Implementations

impl Debug for NegotiationError

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

Formats the value using the given formatter.

impl Display for NegotiationError

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

Formats the value using the given formatter.

impl Error for NegotiationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for NegotiationError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for NegotiationError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<NegotiationError> for TtySessionError

fn from(source: NegotiationError) -> Self

Converts to this type from the input type.