Struct GrandpaQueryApi

pub struct GrandpaQueryApi<'api> { /* private fields */ }

Implementations

impl<'api> GrandpaQueryApi<'api>

pub async fn state(&self) -> Result<StoredState<u32>>

State of the current authority set.

pub async fn pending_change(&self) -> Result<Option<StoredPendingChange<u32>>>

Pending change: (signaled at, scheduled change).

pub async fn next_forced(&self) -> Result<Option<u32>>

next block number where we can force a change.

pub async fn stalled(&self) -> Result<Option<(u32, u32)>>

true if we are currently stalled.

pub async fn current_set_id(&self) -> Result<u64>

The number of changes (both in terms of keys and underlying economic responsibilities) in the “set” of Grandpa validators from genesis.

pub async fn set_id_session(&self, key_0: u64) -> Result<Option<u32>>

A mapping from grandpa set ID to the index of the most recent session for which its members were responsible.

This is only used for validating equivocation proofs. An equivocation proof must contains a key-ownership proof for a given session, therefore we need a way to tie together sessions and GRANDPA set ids, i.e. we need to validate that a validator was the owner of a given key on a given session, and what the active set ID was during that session.

TWOX-NOTE: SetId is not under user control.

Trait Implementations

impl<'api> Clone for GrandpaQueryApi<'api>

fn clone(&self) -> GrandpaQueryApi<'api>

Returns a copy of the value.

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

Performs copy-assignment from source.