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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Michal Kucharczyk
dc7161276d
* frame: support for serde added - enabled `serde` features in dependent crates, no gate feature introduced, linker should do the job and strip unused code. - frame::staking: added impl of `serde::Serialize, serde::Deserialize` for `enum Forcing` - primitives::runtime: impl_opaque_keys macro provides `Serialize/Deserialize` impl if `serde` is enabled - primitives::staking: added impl of `serde::Serialize`, `serde::Deserialize` for `enum StakerStatus` * frame::support: serde for pallets' GenesisConfig enabled in no-std * Cargo.lock updated * Update primitives/staking/Cargo.toml Co-authored-by: Bastian Köcher <git@kchr.de> * fix * Cargo.lock update + missed serde/std in beefy --------- Co-authored-by: Bastian Köcher <git@kchr.de>
I'm online Module
If the local node is a validator (i.e. contains an authority key), this module gossips a heartbeat transaction with each new session. The heartbeat functions as a simple mechanism to signal that the node is online in the current era.
Received heartbeats are tracked for one era and reset with each new era. The module exposes two public functions to query if a heartbeat has been received in the current era or session.
The heartbeat is a signed transaction, which was signed using the session key
and includes the recent best block number of the local validators chain as well
as the NetworkState.
It is submitted as an Unsigned Transaction via off-chain workers.
Interface
Public Functions
is_online- True if the validator sent a heartbeat in the current session.
Usage
use pallet_im_online::{self as im_online};
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + im_online::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn is_online(origin: OriginFor<T>, authority_index: u32) -> DispatchResult {
let _sender = ensure_signed(origin)?;
let _is_online = <im_online::Pallet<T>>::is_online(authority_index);
Ok(())
}
}
}
Dependencies
This module depends on the Session module.
License: Apache-2.0