Enum embedded_nal_minimal_coaptcpserver::Error

#[non_exhaustive]
pub enum Error<E> {
    Network(E),
    LongMessage,
    UnanticipatedResponse,
    BadCSM,
    MissingCSM,
    UnrecognizedMessage,
    SendBufferOverflow,
}

Error returned by operations on a CoAP-over-TCP connection

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Network(E)

A network operation returned an error.

LongMessage

A message the peer sent exceeds the Max-Message-Size that was advertised.

UnanticipatedResponse

The peer sent a response even though we don’t send requests out of principle.

BadCSM

The CSM contained unprocessable options.

MissingCSM

The peer sent a request before sending a CSM.

UnrecognizedMessage

A message of an unrecognized class was received.

SendBufferOverflow

While processing a message, the send buffer got full, and this implementation can’t handle that condition. (Handling it would require significantly growing the per-connection state, see comment around this error’s creation).

Trait Implementations

impl<E: Debug> Debug for Error<E>

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

Formats the value using the given formatter.

impl<E> From<E> for Error<E>

fn from(e: E) -> Error<E>

Converts to this type from the input type.