mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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Serban Iorga
01538bc5fa
* SignedBlock: get justification by consensus engine id * Define ConsensusLogReader Making the check for authority changes more generic * cod review changes
62 lines
2.5 KiB
Rust
62 lines
2.5 KiB
Rust
// Copyright 2019-2021 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common 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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// Parity Bridges Common 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 Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! This crate has single entrypoint to run synchronization loop that is built around finality
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//! proofs, as opposed to headers synchronization loop, which is built around headers. The headers
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//! are still submitted to the target node, but are treated as auxiliary data as we are not trying
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//! to submit all source headers to the target node.
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pub use crate::{
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finality_loop::{metrics_prefix, run, FinalitySyncParams, SourceClient, TargetClient},
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sync_loop_metrics::SyncLoopMetrics,
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};
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use bp_header_chain::{ConsensusLogReader, FinalityProof};
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use std::fmt::Debug;
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mod finality_loop;
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mod finality_loop_tests;
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mod sync_loop_metrics;
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/// Finality proofs synchronization pipeline.
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pub trait FinalitySyncPipeline: 'static + Clone + Debug + Send + Sync {
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/// Name of the finality proofs source.
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const SOURCE_NAME: &'static str;
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/// Name of the finality proofs target.
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const TARGET_NAME: &'static str;
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/// Headers we're syncing are identified by this hash.
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type Hash: Eq + Clone + Copy + Send + Sync + Debug;
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/// Headers we're syncing are identified by this number.
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type Number: relay_utils::BlockNumberBase;
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/// A reader that can extract the consensus log from the header digest and interpret it.
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type ConsensusLogReader: ConsensusLogReader;
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/// Type of header that we're syncing.
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type Header: SourceHeader<Self::Hash, Self::Number, Self::ConsensusLogReader>;
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/// Finality proof type.
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type FinalityProof: FinalityProof<Self::Number>;
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}
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/// Header that we're receiving from source node.
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pub trait SourceHeader<Hash, Number, Reader>: Clone + Debug + PartialEq + Send + Sync {
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/// Returns hash of header.
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fn hash(&self) -> Hash;
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/// Returns number of header.
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fn number(&self) -> Number;
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/// Returns true if this header needs to be submitted to target node.
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fn is_mandatory(&self) -> bool;
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}
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