Enum polkadot_node_subsystem_util::rolling_session_window::SessionsUnavailableReason

pub enum SessionsUnavailableReason {
    RuntimeApiUnavailable(Canceled),
    RuntimeApi(RuntimeApiError),
    Missing(SessionIndex),
}

Sessions unavailable in state to cache.

Variants

RuntimeApiUnavailable(Canceled)

Runtime API subsystem was unavailable.

RuntimeApi(RuntimeApiError)

The runtime API itself returned an error.

Missing(SessionIndex)

Missing session info from runtime API for given SessionIndex.

Trait Implementations

impl Clone for SessionsUnavailableReason

fn clone(&self) -> SessionsUnavailableReason

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SessionsUnavailableReason

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

Formats the value using the given formatter.

impl Display for SessionsUnavailableReason

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

Formats the value using the given formatter.

impl Error for SessionsUnavailableReason

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

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, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl From<Canceled> for SessionsUnavailableReason

fn from(source: Canceled) -> Self

Converts to this type from the input type.

impl From<RuntimeApiError> for SessionsUnavailableReason

fn from(source: RuntimeApiError) -> Self

Converts to this type from the input type.