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Merge branch 'master' into dp/chore/extract-clique
* master: Extract the Engine trait (#10958) Better error message for rpc gas price errors (#10931) [.gitlab.yml] cargo check ethcore benches (#10965) Verify transaction against its block during import (#10954) [evmbin] fix compilation (#10976) Update to latest trie version. (#10972) [blooms-db] Fix benchmarks (#10974) Fix ethcore/benches build. (#10964) tx-pool: accept local tx with higher gas price when pool full (#10901) Disable unsyncable expanse chain (#10926)
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Original file line number | Diff line number | Diff line change |
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// Copyright 2015-2019 Parity Technologies (UK) Ltd. | ||
// This file is part of Parity Ethereum. | ||
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// Parity Ethereum 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. | ||
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// Parity Ethereum 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. | ||
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// You should have received a copy of the GNU General Public License | ||
// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>. | ||
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//! This module contains traits used while creating/restoring snapshots. They | ||
//! are here because they use and are used by the Engine trait itself. | ||
use std::sync::{Arc, atomic::AtomicBool}; | ||
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use ethereum_types::H256; | ||
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use blockchain::{BlockChain, BlockChainDB}; | ||
use common_types::{ | ||
errors::{EthcoreError as Error, SnapshotError}, | ||
snapshot::{ManifestData, ChunkSink, Progress}, | ||
}; | ||
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use crate::engine::Engine; | ||
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/// Restore from secondary snapshot chunks. | ||
pub trait Rebuilder: Send { | ||
/// Feed a chunk, potentially out of order. | ||
/// | ||
/// Check `abort_flag` periodically while doing heavy work. If set to `false`, should bail with | ||
/// `Error::RestorationAborted`. | ||
fn feed( | ||
&mut self, | ||
chunk: &[u8], | ||
engine: &dyn Engine, | ||
abort_flag: &AtomicBool, | ||
) -> Result<(), Error>; | ||
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/// Finalize the restoration. Will be done after all chunks have been | ||
/// fed successfully. | ||
/// | ||
/// This should apply the necessary "glue" between chunks, | ||
/// and verify against the restored state. | ||
fn finalize(&mut self) -> Result<(), Error>; | ||
} | ||
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/// Components necessary for snapshot creation and restoration. | ||
pub trait SnapshotComponents: Send { | ||
/// Create secondary snapshot chunks; these corroborate the state data | ||
/// in the state chunks. | ||
/// | ||
/// Chunks shouldn't exceed the given preferred size, and should be fed | ||
/// uncompressed into the sink. | ||
/// | ||
/// This will vary by consensus engine, so it's exposed as a trait. | ||
fn chunk_all( | ||
&mut self, | ||
chain: &BlockChain, | ||
block_at: H256, | ||
chunk_sink: &mut ChunkSink, | ||
progress: &Progress, | ||
preferred_size: usize, | ||
) -> Result<(), SnapshotError>; | ||
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/// Create a rebuilder, which will have chunks fed into it in arbitrary | ||
/// order and then be finalized. | ||
/// | ||
/// The manifest, a database, and fresh `BlockChain` are supplied. | ||
/// | ||
/// The engine passed to the `Rebuilder` methods will be the same instance | ||
/// that created the `SnapshotComponents`. | ||
fn rebuilder( | ||
&self, | ||
chain: BlockChain, | ||
db: Arc<dyn BlockChainDB>, | ||
manifest: &ManifestData, | ||
) -> Result<Box<dyn Rebuilder>, Error>; | ||
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/// Minimum supported snapshot version number. | ||
fn min_supported_version(&self) -> u64; | ||
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/// Current version number | ||
fn current_version(&self) -> u64; | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -8,7 +8,7 @@ authors = ["Parity Technologies <[email protected]>"] | |
bit-set = "0.4" | ||
parity-bytes = "0.1" | ||
ethereum-types = "0.6.0" | ||
parity-util-mem = "0.1" | ||
parity-util-mem = "0.2.0" | ||
lazy_static = "1.0" | ||
log = "0.4" | ||
vm = { path = "../vm" } | ||
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