openethereum/ethcore/light/src/lib.rs
David 6a9de9b11e
Extract the Engine trait (#10958)
* Add client-traits crate
Move the BlockInfo trait to new crate

* New crate `machine`
Contains code extracted from ethcore that defines `Machine`, `Externalities` and other execution related code.

* Use new machine and client-traits crates in ethcore

* Use new crates machine and client-traits instead of ethcore where appropriate

* Fix tests

* Don't re-export so many types from ethcore::client

* Fixing more fallout from removing re-export

* fix test

* More fallout from not re-exporting types

* Add some docs

* cleanup

* import the macro edition style

* Tweak docs

* Add missing import

* remove unused ethabi_derive imports

* Use latest ethabi-contract

* Move many traits from ethcore/client/traits to client-traits crate
Initial version of extracted Engine trait

* Move snapshot related traits to the engine crate (eew)

* Move a few snapshot related types to common_types
Cleanup Executed as exported from machine crate

* fix warning

* Gradually introduce new engine crate: snapshot

* ethcore typechecks with new engine crate

* Sort out types outside ethcore

* Add an EpochVerifier to ethash and use that in Engine.epoch_verifier()
Cleanup

* Document pub members

* Sort out tests
Sort out default impls for EpochVerifier

* Add test-helpers feature and move EngineSigner impl to the right place

* Sort out tests

* Sort out tests and refactor verification types

* Fix missing traits

* More missing traits
Fix Histogram

* Fix tests and cleanup

* cleanup

* Put back needed logger import

* Don't rexport common_types from ethcore/src/client
Don't export ethcore::client::*

* Remove files no longer used
Use types from the engine crate
Explicit exports from engine::engine

* Get rid of itertools

* Move a few more traits from ethcore to client-traits: BlockChainReset, ScheduleInfo, StateClient

* Move ProvingBlockChainClient to client-traits

* Don't re-export ForkChoice and Transition from ethcore

* Address grumbles: sort imports, remove commented out code

* Fix merge resolution error

* merge failure
2019-08-15 17:59:22 +02:00

101 lines
3.1 KiB
Rust

// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.
// 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.
// 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.
// You should have received a copy of the GNU General Public License
// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
//! Light client logic and implementation.
//!
//! A "light" client stores very little chain-related data locally
//! unlike a full node, which stores all blocks, headers, receipts, and more.
//!
//! This enables the client to have a much lower resource footprint in
//! exchange for the cost of having to ask the network for state data
//! while responding to queries. This makes a light client unsuitable for
//! low-latency applications, but perfectly suitable for simple everyday
//! use-cases like sending transactions from a personal account.
//!
//! The light client performs a header-only sync, doing verification and pruning
//! historical blocks. Upon pruning, batches of 2048 blocks have a number => (hash, TD)
//! mapping sealed into "canonical hash tries" which can later be used to verify
//! historical block queries from peers.
#![deny(missing_docs)]
pub mod client;
pub mod cht;
pub mod net;
pub mod on_demand;
pub mod transaction_queue;
pub mod cache;
pub mod provider;
mod types;
pub use self::cache::Cache;
pub use self::provider::{Provider, MAX_HEADERS_PER_REQUEST};
pub use self::transaction_queue::TransactionQueue;
pub use types::request as request;
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate log;
extern crate bincode;
extern crate client_traits;
extern crate common_types;
extern crate engine;
extern crate ethcore_blockchain;
extern crate ethcore_db;
extern crate ethcore_io as io;
extern crate ethcore_network as network;
extern crate parity_bytes as bytes;
extern crate ethereum_types;
extern crate ethcore_miner as miner;
extern crate ethcore;
extern crate hash_db;
extern crate parity_util_mem;
extern crate parity_util_mem as mem;
extern crate parity_util_mem as malloc_size_of;
extern crate failsafe;
extern crate futures;
extern crate itertools;
extern crate keccak_hasher;
extern crate machine;
extern crate memory_db;
extern crate trie_db as trie;
extern crate patricia_trie_ethereum as ethtrie;
extern crate fastmap;
extern crate rand;
extern crate rlp;
extern crate parking_lot;
#[macro_use]
extern crate rlp_derive;
extern crate serde;
extern crate smallvec;
extern crate stats;
extern crate vm;
extern crate keccak_hash as hash;
extern crate triehash_ethereum as triehash;
extern crate kvdb;
extern crate memory_cache;
extern crate derive_more;
#[cfg(test)]
extern crate kvdb_memorydb;
#[cfg(test)]
extern crate tempdir;
extern crate journaldb;