mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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Chevdor
6b20f7a2c5
* ci: add quick-check with clippy and rustfmt * chore: rustfmt round * chore: set the same rustfmt config than substrate * chore: fix formatting * cI: remove clippy * ci: switch to nightly for the checks * ci: fix toolchains and naming * ci: Limit the check to formatting * chore: fix formatting * Update .rustfmt.toml * Update .rustfmt.toml Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
112 lines
3.2 KiB
Rust
112 lines
3.2 KiB
Rust
// Copyright 2021 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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use sp_runtime::traits::Block as BlockT;
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use polkadot_node_primitives::AvailableData;
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use polkadot_node_subsystem::messages::AvailabilityRecoveryMessage;
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use polkadot_overseer::Handle as OverseerHandle;
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use futures::{channel::oneshot, stream::FuturesUnordered, Future, FutureExt, StreamExt};
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use std::{collections::HashSet, pin::Pin};
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/// The active candidate recovery.
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///
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/// This handles the candidate recovery and tracks the activate recoveries.
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pub(crate) struct ActiveCandidateRecovery<Block: BlockT> {
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/// The recoveries that are currently being executed.
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recoveries: FuturesUnordered<
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Pin<Box<dyn Future<Output = (Block::Hash, Option<AvailableData>)> + Send>>,
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>,
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/// The block hashes of the candidates currently being recovered.
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candidates: HashSet<Block::Hash>,
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overseer_handle: OverseerHandle,
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}
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impl<Block: BlockT> ActiveCandidateRecovery<Block> {
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pub fn new(overseer_handle: OverseerHandle) -> Self {
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Self { recoveries: Default::default(), candidates: Default::default(), overseer_handle }
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}
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/// Recover the given `pending_candidate`.
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pub async fn recover_candidate(
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&mut self,
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block_hash: Block::Hash,
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pending_candidate: crate::PendingCandidate<Block>,
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) {
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let (tx, rx) = oneshot::channel();
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self.overseer_handle
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.send_msg(
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AvailabilityRecoveryMessage::RecoverAvailableData(
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pending_candidate.receipt,
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pending_candidate.session_index,
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None,
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tx,
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),
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"ActiveCandidateRecovery",
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)
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.await;
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self.candidates.insert(block_hash);
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self.recoveries.push(
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async move {
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match rx.await {
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Ok(Ok(res)) => (block_hash, Some(res)),
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Ok(Err(error)) => {
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tracing::debug!(
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target: crate::LOG_TARGET,
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?error,
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?block_hash,
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"Availability recovery failed",
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);
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(block_hash, None)
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},
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Err(_) => {
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tracing::debug!(
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target: crate::LOG_TARGET,
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"Availability recovery oneshot channel closed",
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);
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(block_hash, None)
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},
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}
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}
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.boxed(),
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);
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}
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/// Returns if the given `candidate` is being recovered.
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pub fn is_being_recovered(&self, candidate: &Block::Hash) -> bool {
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self.candidates.contains(candidate)
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}
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/// Waits for the next recovery.
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///
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/// If the returned [`AvailableData`] is `None`, it means that the recovery failed.
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pub async fn wait_for_recovery(&mut self) -> (Block::Hash, Option<AvailableData>) {
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loop {
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if let Some(res) = self.recoveries.next().await {
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self.candidates.remove(&res.0);
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return res
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} else {
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futures::pending!()
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}
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}
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}
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}
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