Enum Unanswered 

pub enum Unanswered {
    Gone,
    Garbled(Unreadable),
    NoAnswerToThat,
    Refused(String),
    BesideThePoint(String),
}

Why an ask got no answer.

Variants

Gone

The broker’s thread is not there any more: it ended, or it panicked. Either way there is nobody to answer, which is a thing to be told rather than a thing to wait for.

Garbled(Unreadable)

The bytes were not a message, in one direction or the other.

NoAnswerToThat

Ask::Done is the one message with no answer. Waiting for one is the hang this refuses to perform.

Refused(String)

The broker will not open a session, and here is why. Belongs to the session: after it there is nothing to retry.

BesideThePoint(String)

It answered something that does not answer what was asked. Not a failure of the errand but of the vocabulary — the two sides do not agree about what this conversation is.

Trait Implementations

impl Clone for Unanswered

fn clone(&self) -> Unanswered

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Unanswered

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

Formats the value using the given formatter.

impl Display for Unanswered

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

Formats the value using the given formatter.

impl Error for Unanswered

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 PartialEq for Unanswered

fn eq(&self, other: &Unanswered) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Unanswered

impl StructuralPartialEq for Unanswered