Enum tokio::sync::TryAcquireError

pub enum TryAcquireError {
    Closed,
    NoPermits,
}

This is supported 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.

impl Display for TryAcquireError

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

Formats the value using the given formatter.

impl Error for TryAcquireError

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

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

impl PartialEq<TryAcquireError> for TryAcquireError

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

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

This method tests for !=.

impl StructuralPartialEq for TryAcquireError