[−][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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impl Error
pub fn shutdown() -> Error
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pub fn shutdown() -> Error
Create an error representing a shutdown timer.
pub fn is_shutdown(&self) -> bool
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pub fn is_shutdown(&self) -> bool
Returns true
if the error was caused by the timer being shutdown.
pub fn at_capacity() -> Error
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pub fn at_capacity() -> Error
Create an error representing a timer at capacity.
pub fn is_at_capacity(&self) -> bool
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pub fn is_at_capacity(&self) -> bool
Returns true
if the error was caused by the timer being at capacity.
Trait Implementations
impl Debug for Error
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impl Debug for Error
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Display for Error
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impl Display for Error
fn fmt(&self, fmt: &mut Formatter) -> Result
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fn fmt(&self, fmt: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Error for Error
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impl Error for Error
fn description(&self) -> &str
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fn description(&self) -> &str
This method is soft-deprecated. Read more
fn cause(&self) -> Option<&dyn Error>
1.0.0[src]
fn cause(&self) -> Option<&dyn Error>
: replaced by Error::source, which can support downcasting
The lower-level cause of this error, if any. Read more
fn source(&self) -> Option<&(dyn Error + 'static)>
1.30.0[src]
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> ToString for T where
T: Display + ?Sized,
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impl<T> ToString for T where
T: Display + ?Sized,
impl<T> From for T
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impl<T> From for T
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)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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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)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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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more