Enum TryAcquireError

pub enum TryAcquireError {
    Closed,
    InsufficientPermits,
}

Errors returned by Semaphore::try_acquire.

Variants

Closed

The semaphore has been closed, so additional permits cannot be acquired.

InsufficientPermits

The semaphore does not currently have enough permits to satisfy the request.

Trait Implementations

impl Debug for TryAcquireError

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

Formats the value using the given formatter.

impl Display for TryAcquireError

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

Formats the value using the given formatter.

impl Error for TryAcquireError

Available on crate feature core-error 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 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 Eq for TryAcquireError

impl StructuralPartialEq for TryAcquireError