Enum TxnError 

#[non_exhaustive]
pub enum TxnError {
    WriterLockHeld,
    IdOverflow {
        family: IdFamily,
    },
    TransactionIdOverflow,
    CommitSeqOverflow,
}

Errors from the transaction lifecycle: the single-writer lock and id and sequence allocation.

Performance

Formatting is O(1).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

WriterLockHeld

The single-writer lock is already held by another writer.

IdOverflow

Canonical ID space is exhausted.

Fields

family: IdFamily

Id family whose space is exhausted.

TransactionIdOverflow

Transaction ID space is exhausted.

CommitSeqOverflow

Commit sequence space is exhausted.

Trait Implementations

impl Debug for TxnError

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

Formats the value using the given formatter.

impl Display for TxnError

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

Formats the value using the given formatter.

impl Error for TxnError

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<TxnError> for DbError

fn from(error: TxnError) -> Self

Converts to this type from the input type.