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Generalize engine trait (#6591)

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* move common forks and parameters to common params

* port specs over to new format

* fix RPC tests

* parity-machine skeleton

* remove block type

* extract out ethereum-specific methods into EthereumMachine

* beginning to integrate Machine into engines. dealing with stale transitions in Ethash

* initial porting to machine

* move block reward back into engine

* abstract block reward logic

* move last hash and DAO HF logic into machine

* begin making engine function parameters generic

* abstract epoch verifier and ethash block reward logic

* instantiate special ethereummachine for ethash in spec

* optional full verification in verify_block_family

* re-instate tx_filter in a way that works for all engines

* fix warnings

* fix most tests, further generalize engine trait

* uncomment nullengine, get ethcore tests compiling

* fix warnings

* update a bunch of specs

* re-enable engine signer, validator set, and transition handler

* migrate basic_authority engine

* move last hashes into executedblock

* port tendermint

* make all ethcore tests pass

* json-tests compilation

* fix RPC tests: change in gas limit for new block changed PoW hash

* fix minor grumbles

* validate chainspecs

* fix broken import

* fix transaction verification for pre-homestead
This commit is contained in:
Robert Habermeier
2017-09-26 14:19:08 +02:00
committed by Gav Wood
parent d8af9f4e7b
commit bc167a211b
85 changed files with 2233 additions and 1923 deletions
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12
ethcore/src/snapshot/mod.rs
View File

@@ -26,7 +26,7 @@ use hash::{keccak, KECCAK_NULL_RLP, KECCAK_EMPTY};
use account_db::{AccountDB, AccountDBMut};
use blockchain::{BlockChain, BlockProvider};
use engines::Engine;
use engines::EthEngine;
use header::Header;
use ids::BlockId;
@@ -126,7 +126,7 @@ impl Progress {
}
/// Take a snapshot using the given blockchain, starting block hash, and database, writing into the given writer.
pub fn take_snapshot<W: SnapshotWriter + Send>(
engine: &Engine,
engine: &EthEngine,
chain: &BlockChain,
block_at: H256,
state_db: &HashDB,
@@ -484,13 +484,13 @@ const POW_VERIFY_RATE: f32 = 0.02;
/// Verify an old block with the given header, engine, blockchain, body. If `always` is set, it will perform
/// the fullest verification possible. If not, it will take a random sample to determine whether it will
/// do heavy or light verification.
pub fn verify_old_block(rng: &mut OsRng, header: &Header, engine: &Engine, chain: &BlockChain, body: Option<&[u8]>, always: bool) -> Result<(), ::error::Error> {
engine.verify_block_basic(header, body)?;
pub fn verify_old_block(rng: &mut OsRng, header: &Header, engine: &EthEngine, chain: &BlockChain, always: bool) -> Result<(), ::error::Error> {
engine.verify_block_basic(header)?;
if always || rng.gen::<f32>() <= POW_VERIFY_RATE {
engine.verify_block_unordered(header, body)?;
engine.verify_block_unordered(header)?;
match chain.block_header(header.parent_hash()) {
Some(parent) => engine.verify_block_family(header, &parent, body),
Some(parent) => engine.verify_block_family(header, &parent),
None => Ok(()),
}
} else {