Enum TopicError 

pub enum TopicError {
    TopicNotFound(String),
    AlreadyRegistered(String),
    QueueFull {
        topic: String,
        max: usize,
    },
    BelowThreshold {
        topic: String,
        priority: u8,
    },
}

Errors that can occur in TopicRouter operations.

Variants

TopicNotFound(String)

The requested topic has not been registered.

AlreadyRegistered(String)

A topic with the same name is already registered.

QueueFull

The topic’s queue is at capacity.

Fields

topic: String

max: usize

BelowThreshold

The message priority is below the configured threshold for the topic.

Fields

topic: String

priority: u8

Trait Implementations

impl Clone for TopicError

fn clone(&self) -> TopicError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopicError

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

Formats the value using the given formatter.

impl Display for TopicError

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

Formats the value using the given formatter.

impl Eq for TopicError

impl Error for TopicError

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 TopicError

fn eq(&self, other: &TopicError) -> 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 StructuralPartialEq for TopicError