[−][src]Struct tokio::timer::Error
Errors encountered by the timer implementation.
Currently, there are two different errors that can occur:
-
shutdown
occurs when a timer operation is attempted, but the timer instance has been dropped. In this case, the operation will never be able to complete and theshutdown
error is returned. This is a permanent error, i.e., once this error is observed, timer operations will never succeed in the future. -
at_capacity
occurs when a timer operation is attempted, but the timer instance is currently handling its maximum number of outstanding delays. In this case, the operation is not able to be performed at the current moment, andat_capacity
is returned. This is a transient error, i.e., at some point in the future, if the operation is attempted again, it might succeed. Callers that observe this error should attempt to shed load. One way to do this would be dropping the future that issued the timer operation.
Methods
impl Error
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pub fn shutdown() -> Error
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Create an error representing a shutdown timer.
pub fn is_shutdown(&self) -> bool
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Returns true
if the error was caused by the timer being shutdown.
pub fn at_capacity() -> Error
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Create an error representing a timer at capacity.
pub fn is_at_capacity(&self) -> bool
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Returns true
if the error was caused by the timer being at capacity.
Trait Implementations
impl Error for Error
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fn description(&self) -> &str
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fn cause(&self) -> Option<&dyn Error>
1.0.0[src]
fn source(&self) -> Option<&(dyn Error + 'static)>
1.30.0[src]
fn backtrace(&self) -> Option<&Backtrace>
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impl Display for Error
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impl Debug for Error
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Auto Trait Implementations
impl Send for Error
impl Unpin for Error
impl Sync for Error
impl UnwindSafe for Error
impl RefUnwindSafe for Error
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Wfn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,