Enum Error 

pub enum Error {
    ClaimFailure,
    StopCalledByClone,
    BackendWithNoConnection,
    ConnectionRetrievalFailure,
    // some variants omitted
}

The cueball Error type is an enum that represents the different errors that may be returned by the cueball API.

Variants

ClaimFailure

The call to claim to failed to retrieve a connection within the specified timeout period.

StopCalledByClone

The stop function was called on a pool clone. Only the original connction pool instance may stop a connection pool. Thread JoinHandles may not be cloned and therefore invocation of this function by a clone of the pool results in an error.

BackendWithNoConnection

A backend key was found with no associated connection. This error should never happen and is only represented for completeness. Please file a bug if it is encountered.

ConnectionRetrievalFailure

A connection could not be retrieved from the connection pool even though the connection pool accounting indicated one should be available. This error should never happen and is only represented for completeness. Please file a bug if it is encountered.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

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

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.