Struct ImOnlineQueryApi 

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

Implementations

impl<'api> ImOnlineQueryApi<'api>

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

The block number after which it’s ok to send heartbeats in the current session.

At the beginning of each session we set this to a value that should fall roughly in the middle of the session duration. The idea is to first wait for the validators to produce a block in the current session, so that the heartbeat later on will not be necessary.

This value will only be used as a fallback if we fail to get a proper session progress estimate from NextSessionRotation, as those estimates should be more accurate then the value we calculate for HeartbeatAfter.

pub async fn keys(&self) -> Result<Vec<Public>>

The current set of keys that may issue a heartbeat.

pub async fn received_heartbeats( &self, key_0: u32, key_1: u32, ) -> Result<Option<WrapperOpaque<BoundedOpaqueNetworkState>>>

For each session index, we keep a mapping of SessionIndex and AuthIndex to WrapperOpaque<BoundedOpaqueNetworkState>.

pub async fn authored_blocks(&self, key_0: u32, key_1: AccountId) -> Result<u32>

For each session index, we keep a mapping of ValidatorId<T> to the number of blocks authored by the given authority.

Trait Implementations

impl<'api> Clone for ImOnlineQueryApi<'api>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.