mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-10 05:17:59 +00:00
Arkadiy Paronyan
58bd0d4c05
* Include uncles * Filter missing uncles * Moved inherent registration to a new crate * Ignore invalid inherent encoding
67 lines
2.1 KiB
Rust
67 lines
2.1 KiB
Rust
// Copyright 2019 Parity Technologies (UK) Ltd.
|
|
// This file is part of Substrate.
|
|
|
|
// Substrate is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// Substrate is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! Uncles functionality for Substrate.
|
|
//!
|
|
#![deny(warnings)]
|
|
#![forbid(unsafe_code, missing_docs)]
|
|
|
|
use consensus_common::SelectChain;
|
|
use inherents::{InherentDataProviders};
|
|
use log::warn;
|
|
use client::ProvideUncles;
|
|
use sr_primitives::traits::{Block as BlockT, Header};
|
|
use std::sync::Arc;
|
|
|
|
/// Maximum uncles generations we may provide to the runtime.
|
|
const MAX_UNCLE_GENERATIONS: u32 = 8;
|
|
|
|
/// Register uncles inherent data provider, if not registered already.
|
|
pub fn register_uncles_inherent_data_provider<B, C, SC>(
|
|
client: Arc<C>,
|
|
select_chain: SC,
|
|
inherent_data_providers: &InherentDataProviders,
|
|
) -> Result<(), consensus_common::Error> where
|
|
B: BlockT,
|
|
C: ProvideUncles<B> + Send + Sync + 'static,
|
|
SC: SelectChain<B> + 'static,
|
|
{
|
|
if !inherent_data_providers.has_provider(&srml_authorship::INHERENT_IDENTIFIER) {
|
|
inherent_data_providers
|
|
.register_provider(srml_authorship::InherentDataProvider::new(move || {
|
|
{
|
|
let chain_head = match select_chain.best_chain() {
|
|
Ok(x) => x,
|
|
Err(e) => {
|
|
warn!(target: "uncles", "Unable to get chain head: {:?}", e);
|
|
return Vec::new();
|
|
}
|
|
};
|
|
match client.uncles(chain_head.hash(), MAX_UNCLE_GENERATIONS.into()) {
|
|
Ok(uncles) => uncles,
|
|
Err(e) => {
|
|
warn!(target: "uncles", "Unable to get uncles: {:?}", e);
|
|
Vec::new()
|
|
}
|
|
}
|
|
}
|
|
}))
|
|
.map_err(|err| consensus_common::Error::InherentData(err.into()))?;
|
|
}
|
|
Ok(())
|
|
}
|
|
|