Enum TryAcquireError 

pub enum TryAcquireError {
    Closed,
    NoPermits,
}

An error which can occur when a Semaphore has been closed or has no available permits.

Variants

Closed

The semaphore has been closed and can not issue new permits.

NoPermits

The semaphore has no available permits.

Trait Implementations

impl Clone for TryAcquireError

fn clone(&self) -> TryAcquireError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TryAcquireError

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

Formats the value using the given formatter.

impl Display for TryAcquireError

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

Formats the value using the given formatter.

impl Error for TryAcquireError

Available on crate feature std only.

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 From<TryAcquireError> for TrySendError<()>

Available on crate feature alloc only.

fn from(err: TryAcquireError) -> Self

Converts to this type from the input type.

impl PartialEq for TryAcquireError

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

fn partial_cmp(&self, other: &TryAcquireError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for TryAcquireError

impl StructuralPartialEq for TryAcquireError