Enum SemaphoreError 

pub enum SemaphoreError {
    Interrupted,
    TimedOut,
    CountOverflow,
    Task(TaskError),
}

Failure to acquire or release a counting semaphore.

Variants

Interrupted

The task’s interruption predicate became true before a grant.

TimedOut

The absolute deadline expired before a grant.

CountOverflow

The available permit count cannot be incremented.

Task(TaskError)

The scheduler rejected the caller’s context or park transaction.

Trait Implementations

impl Debug for SemaphoreError

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

Formats the value using the given formatter.

impl Display for SemaphoreError

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

Formats the value using the given formatter.

impl Error for SemaphoreError

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<TaskError> for SemaphoreError

fn from(source: TaskError) -> Self

Converts to this type from the input type.