Struct AlreadyRunning 

pub struct AlreadyRunning;

Returned by DomainRuntime::start when the loop is already running.

start returns Ok(false) for the already-running case rather than this error, so the type exists mainly to give callers a typed, infallible-to-construct marker; the generic start never actually yields it today but keeps the door open for fallible launchers.

Trait Implementations

impl Clone for AlreadyRunning

fn clone(&self) -> AlreadyRunning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AlreadyRunning

impl Debug for AlreadyRunning

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

Formats the value using the given formatter.

impl Display for AlreadyRunning

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

Formats the value using the given formatter.

impl Eq for AlreadyRunning

impl Error for AlreadyRunning

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 AlreadyRunning

fn eq(&self, other: &AlreadyRunning) -> 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 AlreadyRunning