Enum TryAcquireError

pub enum TryAcquireError {
    Closed,
    NoPermits,
}

Available on crate feature sync only.

Error returned from the Semaphore::try_acquire function.

Variants

Closed

The semaphore has been closed and cannot issue new permits.

NoPermits

The semaphore has no available permits.

Trait Implementations

impl Debug for TryAcquireError

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

Formats the value using the given formatter. Read more

impl Display for TryAcquireError

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

Formats the value using the given formatter. Read more

impl Eq for TryAcquireError

impl Error for TryAcquireError

1.30.0 ·

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more

1.0.0 ·

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

1.0.0 ·

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. Read more

impl PartialEq for TryAcquireError

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

Equality operator ==. Read more

1.0.0 (const: unstable) ·

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

Inequality operator !=. Read more

impl StructuralPartialEq for TryAcquireError

Auto Trait Implementations

impl Freeze for TryAcquireError

impl RefUnwindSafe for TryAcquireError

impl Send for TryAcquireError

impl Sync for TryAcquireError

impl Unpin for TryAcquireError

impl UnsafeUnpin for TryAcquireError

impl UnwindSafe for TryAcquireError

Blanket Implementations

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom for T
where 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>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error