Enum TimerRegistrationError 

#[non_exhaustive]
pub enum TimerRegistrationError {
    InactiveContext,
    TimerUnavailable,
    ZeroPeriod,
    DeadlineOutOfRange,
}

Why a timer operation could not be registered. Every variant is a synchronous pre-delivery refusal: no operation is returned.

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.

InactiveContext

The selected Context generation is closed to new cleanup.

TimerUnavailable

No usable Tokio time environment is current.

ZeroPeriod

Interval periods must be nonzero.

DeadlineOutOfRange

The requested monotonic deadline cannot be represented.

Trait Implementations

impl Clone for TimerRegistrationError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TimerRegistrationError

impl Debug for TimerRegistrationError

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

Formats the value using the given formatter.

impl Display for TimerRegistrationError

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

Formats the value using the given formatter.

impl Eq for TimerRegistrationError

impl Error for TimerRegistrationError

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 TimerRegistrationError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TimerRegistrationError