Struct polkadot_node_subsystem_util::runtime::RuntimeInfo

pub struct RuntimeInfo { /* private fields */ }

Caching of session info.

It should be ensured that a cached session stays live in the cache as long as we might need it.

Implementations

impl RuntimeInfo

pub fn new(keystore: Option<KeystorePtr>) -> Self

Create a new RuntimeInfo for convenient runtime fetches.

pub fn new_with_config(cfg: Config) -> Self

Create with more elaborate configuration options.

pub async fn get_session_index_for_child<Sender>( &mut self, sender: &mut Sender, parent: Hash, ) -> Result<SessionIndex, Error>

where Sender: SubsystemSender<RuntimeApiMessage>,

Returns the session index expected at any child of the parent block. This does not return the session index for the parent block.

pub fn pin_block( &mut self, session_index: SessionIndex, unpin_handle: UnpinHandle, )

Pin a given block in the given session if none are pinned in that session. Unpinning will happen automatically when LRU cache grows over the limit.

pub fn get_block_in_session(&self, session_index: SessionIndex) -> Option<Hash>

Get the hash of a pinned block for the given session index, if any.

pub async fn get_session_info<'a, Sender>( &'a mut self, sender: &mut Sender, relay_parent: Hash, ) -> Result<&'a ExtendedSessionInfo, Error>

where Sender: SubsystemSender<RuntimeApiMessage>,

Get ExtendedSessionInfo by relay parent hash.

pub async fn get_disabled_validators<Sender>( &mut self, sender: &mut Sender, relay_parent: Hash, ) -> Result<Vec<ValidatorIndex>, Error>

where Sender: SubsystemSender<RuntimeApiMessage>,

Get the list of disabled validators at the relay parent.

pub async fn get_session_info_by_index<'a, Sender>( &'a mut self, sender: &mut Sender, parent: Hash, session_index: SessionIndex, ) -> Result<&'a ExtendedSessionInfo, Error>

where Sender: SubsystemSender<RuntimeApiMessage>,

Get ExtendedSessionInfo by session index.

request_session_info still requires the parent to be passed in, so we take the parent in addition to the SessionIndex.

pub async fn check_signature<Sender, Payload, RealPayload>( &mut self, sender: &mut Sender, relay_parent: Hash, signed: UncheckedSigned<Payload, RealPayload>, ) -> Result<Result<Signed<Payload, RealPayload>, UncheckedSigned<Payload, RealPayload>>, Error>

where Sender: SubsystemSender<RuntimeApiMessage>, Payload: EncodeAs<RealPayload> + Clone, RealPayload: Encode + Clone,

Convenience function for checking the signature of something signed.