openethereum/ethcore/blockchain/src/lib.rs

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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
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// 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.
// Parity Ethereum is distributed in the hope that it will be useful,
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// 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 Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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//! Blockchain database.
#![warn(missing_docs)]
mod best_block;
mod block_info;
mod blockchain;
mod cache;
mod config;
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mod import_route;
mod update;
Snapshot creation and restoration (#1679) * to_rlp takes self by-reference * clean up some derefs * out-of-order insertion for blockchain * implement block rebuilder without verification * group block chunk header into struct * block rebuilder does verification * integrate snapshot service with client service; flesh out implementation more * initial implementation of snapshot service * remove snapshottaker trait * snapshot writer trait with packed and loose implementations * write chunks using "snapshotwriter" in service * have snapshot taking use snapshotwriter * implement snapshot readers * back up client dbs when replacing * use snapshot reader in snapshot service * describe offset format * use new get_db_path in parity, allow some errors in service * blockchain formatting * implement parity snapshot * implement snapshot restore * force blocks to be submitted in order * fix bug loading block hashes in packed reader * fix seal field loading * fix uncle hash computation * fix a few bugs * store genesis state in db. reverse block chunk order in packed writer * allow out-of-order import for blocks * bring restoration types together * only snapshot the last 30000 blocks * restore into overlaydb instead of journaldb * commit version to database * use memorydbs and commit directly * fix trie test compilation * fix failing tests * sha3_null_rlp, not H256::zero * move overlaydb to ref_overlaydb, add new overlaydb without on-disk rc * port archivedb to new overlaydb * add deletion mode tests for overlaydb * use new overlaydb, check state root at end * share chain info between state and block snapshotting * create blocks snapshot using blockchain directly * allow snapshot from arbitrary block, remove panickers from snapshot creation * begin test framework * blockchain chunking test * implement stateproducer::tick * state snapshot test * create block and state chunks concurrently, better restoration informant * fix tests * add deletion mode tests for overlaydb * address comments * more tests * Fix up tests. * remove a few printlns * add a little more documentation to `commit` * fix tests * fix ref_overlaydb test names * snapshot command skeleton * revert ref_overlaydb renaming * reimplement snapshot commands * fix many errors * everything but inject * get ethcore compiling * get snapshot tests passing again * instrument snapshot commands again * fix fallout from other changes, mark snapshots as experimental * optimize injection patterns * do two injections * fix up tests * take snapshots from 1000 blocks efore * address minor comments * fix a few io crate related errors * clarify names about total difficulty [ci skip]
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pub mod generator;
pub use self::blockchain::{BlockProvider, BlockChain, BlockChainDB, BlockChainDBHandler};
pub use self::cache::CacheSize;
pub use self::config::Config;
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pub use self::import_route::ImportRoute;
Fork choice and metadata framework for Engine (#8401) * Add light client TODO item * Move existing total-difficulty-based fork choice check to Engine * Abstract total difficulty and block provider as Machine::BlockMetadata and Machine::BlockProvider * Decouple "generate_metadata" logic to Engine * Use fixed BlockMetadata and BlockProvider type for null and instantseal In this way they can use total difficulty fork choice check * Extend blockdetails with metadatas and finalized info * Extra data update: mark_finalized and update_metadatas * Check finalized block in Blockchain * Fix a test constructor in verification mod * Add total difficulty trait * Fix type import * Db migration to V13 with metadata column * Address grumbles * metadatas -> metadata * Use generic type for update_metadata to avoid passing HashMap all around * Remove metadata in blockdetails * [WIP] Implement a generic metadata architecture * [WIP] Metadata insertion logic in BlockChain * typo: Value -> Self::Value * [WIP] Temporarily remove Engine::is_new_best interface So that we don't have too many type errors. * [WIP] Fix more type errors * [WIP] ExtendedHeader::PartialEq * [WIP] Change metadata type Option<Vec<u8>> to Vec<u8> * [WIP] Remove Metadata Error * [WIP] Clean up error conversion * [WIP] finalized -> is_finalized * [WIP] Mark all fields in ExtrasInsert as pub * [WIP] Remove unused import * [WIP] Keep only local metadata info * Mark metadata as optional * [WIP] Revert metadata db change in BlockChain * [WIP] Put finalization in unclosed state * Use metadata interface in BlockDetail * [WIP] Fix current build failures * [WIP] Remove unused blockmetadata struct * Remove DB migration info * [WIP] Typo * Use ExtendedHeader to implement fork choice check * Implement is_new_best using Ancestry iterator * Use expect instead of panic * [WIP] Add ancestry Engine support via on_new_block * Fix tests * Emission of ancestry actions * use_short_version should take account of metadata * Engine::is_new_best -> Engine::fork_choice * Use proper expect format as defined in #1026 * panic -> expect * ancestry_header -> ancestry_with_metadata * Boxed iterator -> &mut iterator * Fix tests * is_new_best -> primitive_fork_choice * Document how fork_choice works * Engine::fork_choice -> Engine::primitive_fork_choice * comment: clarify types of finalization where Engine::primitive_fork_choice works * Expose FinalizationInfo to Engine * Fix tests due to merging * Remove TotalDifficulty trait * Do not pass FinalizationInfo to Engine If there's finalized blocks in from route, choose the old branch without calling `Engine::fork_choice`. * Fix compile * Fix unused import * Remove is_to_route_finalized When no block reorg passes a finalized block, this variable is always false. * Address format grumbles * Fix docs: mark_finalized returns None if block hash is not found `blockchain` mod does not yet have an Error type, so we still temporarily use None here. * Fix inaccurate tree_route None expect description
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pub use self::update::ExtrasInsert;
pub use ethcore_db::keys::{BlockReceipts, BlockDetails, TransactionAddress, BlockNumberKey};
pub use common_types::tree_route::TreeRoute;