grassrootseconomics
/
openethereum
5
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Canonical state cache (master) (#2311) 

* State cache

* Reduced copying data between caches

Whitespace and optional symbols

* Reduced copying data between caches

Whitespace and optional symbols

* Set a limit on storage cache

* Style and docs
This commit is contained in:
Arkadiy Paronyan 2016-09-27 18:02:11 +02:00 committed by GitHub
parent 9d4bee4922
commit ad63780b4d
20 changed files with 701 additions and 210 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Cargo.lock generated
View File

@ -288,6 +288,7 @@ dependencies = [
"hyper 0.9.4 (git+https://github.com/ethcore/hyper)",
"lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"lru-cache 0.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@ -863,6 +864,11 @@ name = "libc"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "linked-hash-map"
version = "0.0.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "linked-hash-map"
version = "0.3.0"
@ -873,6 +879,14 @@ name = "log"
version = "0.3.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "lru-cache"
version = "0.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"linked-hash-map 0.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "matches"
version = "0.1.2"

1
ethcore/Cargo.toml
View File

@ -37,6 +37,7 @@ ethkey = { path = "../ethkey" }
ethcore-ipc-nano = { path = "../ipc/nano" }
rlp = { path = "../util/rlp" }
rand = "0.3"
lru-cache = "0.0.7"
[dependencies.hyper]
git = "https://github.com/ethcore/hyper"

49
ethcore/src/block.rs
View File

@ -19,6 +19,7 @@
use common::*;
use engines::Engine;
use state::*;
use state_db::StateDB;
use verification::PreverifiedBlock;
use trace::FlatTrace;
use factory::Factories;
@ -179,7 +180,7 @@ pub trait IsBlock {
/// Trait for a object that has a state database.
pub trait Drain {
/// Drop this object and return the underlieing database.
fn drain(self) -> Box<JournalDB>;
fn drain(self) -> StateDB;
}
impl IsBlock for ExecutedBlock {
@ -231,7 +232,7 @@ impl<'x> OpenBlock<'x> {
engine: &'x Engine,
factories: Factories,
tracing: bool,
db: Box<JournalDB>,
db: StateDB,
parent: &Header,
last_hashes: Arc<LastHashes>,
author: Address,
@ -474,7 +475,9 @@ impl LockedBlock {
impl Drain for LockedBlock {
/// Drop this object and return the underlieing database.
fn drain(self) -> Box<JournalDB> { self.block.state.drop().1 }
fn drain(self) -> StateDB {
self.block.state.drop().1
}
}
impl SealedBlock {
@ -490,7 +493,9 @@ impl SealedBlock {
impl Drain for SealedBlock {
/// Drop this object and return the underlieing database.
fn drain(self) -> Box<JournalDB> { self.block.state.drop().1 }
fn drain(self) -> StateDB {
self.block.state.drop().1
}
}
impl IsBlock for SealedBlock {
@ -505,7 +510,7 @@ pub fn enact(
uncles: &[Header],
engine: &Engine,
tracing: bool,
db: Box<JournalDB>,
db: StateDB,
parent: &Header,
last_hashes: Arc<LastHashes>,
factories: Factories,
@ -537,7 +542,7 @@ pub fn enact_bytes(
block_bytes: &[u8],
engine: &Engine,
tracing: bool,
db: Box<JournalDB>,
db: StateDB,
parent: &Header,
last_hashes: Arc<LastHashes>,
factories: Factories,
@ -553,7 +558,7 @@ pub fn enact_verified(
block: &PreverifiedBlock,
engine: &Engine,
tracing: bool,
db: Box<JournalDB>,
db: StateDB,
parent: &Header,
last_hashes: Arc<LastHashes>,
factories: Factories,
@ -568,7 +573,7 @@ pub fn enact_and_seal(
block_bytes: &[u8],
engine: &Engine,
tracing: bool,
db: Box<JournalDB>,
db: StateDB,
parent: &Header,
last_hashes: Arc<LastHashes>,
factories: Factories,
@ -588,9 +593,9 @@ mod tests {
use spec::*;
let spec = Spec::new_test();
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let b = OpenBlock::new(&*spec.engine, Default::default(), false, db, &genesis_header, last_hashes, Address::zero(), (3141562.into(), 31415620.into()), vec![]).unwrap();
let b = b.close_and_lock();
@ -604,25 +609,25 @@ mod tests {
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes.clone(), Address::zero(), (3141562.into(), 31415620.into()), vec![]).unwrap()
.close_and_lock().seal(engine, vec![]).unwrap();
let orig_bytes = b.rlp_bytes();
let orig_db = b.drain();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let e = enact_and_seal(&orig_bytes, engine, false, db, &genesis_header, last_hashes, Default::default()).unwrap();
assert_eq!(e.rlp_bytes(), orig_bytes);
let db = e.drain();
assert_eq!(orig_db.keys(), db.keys());
assert!(orig_db.keys().iter().filter(|k| orig_db.get(k.0) != db.get(k.0)).next() == None);
assert_eq!(orig_db.journal_db().keys(), db.journal_db().keys());
assert!(orig_db.journal_db().keys().iter().filter(|k| orig_db.journal_db().get(k.0) != db.journal_db().get(k.0)).next() == None);
}
#[test]
@ -632,9 +637,9 @@ mod tests {
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let mut open_block = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes.clone(), Address::zero(), (3141562.into(), 31415620.into()), vec![]).unwrap();
let mut uncle1_header = Header::new();
@ -648,9 +653,9 @@ mod tests {
let orig_bytes = b.rlp_bytes();
let orig_db = b.drain();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let e = enact_and_seal(&orig_bytes, engine, false, db, &genesis_header, last_hashes, Default::default()).unwrap();
let bytes = e.rlp_bytes();
@ -659,7 +664,7 @@ mod tests {
assert_eq!(uncles[1].extra_data(), b"uncle2");
let db = e.drain();
assert_eq!(orig_db.keys(), db.keys());
assert!(orig_db.keys().iter().filter(|k| orig_db.get(k.0) != db.get(k.0)).next() == None);
assert_eq!(orig_db.journal_db().keys(), db.journal_db().keys());
assert!(orig_db.journal_db().keys().iter().filter(|k| orig_db.journal_db().get(k.0) != db.journal_db().get(k.0)).next() == None);
}
}

40
ethcore/src/client/client.rs
View File

@ -23,7 +23,7 @@ use time::precise_time_ns;
// util
use util::{Bytes, PerfTimer, Itertools, Mutex, RwLock};
use util::journaldb::{self, JournalDB};
use util::journaldb;
use util::{U256, H256, Address, H2048, Uint};
use util::TrieFactory;
use util::kvdb::*;
@ -65,7 +65,7 @@ use miner::{Miner, MinerService};
use snapshot::{self, io as snapshot_io};
use factory::Factories;
use rlp::{View, UntrustedRlp};
use state_db::StateDB;
// re-export
pub use types::blockchain_info::BlockChainInfo;
@ -125,9 +125,9 @@ pub struct Client {
tracedb: RwLock<TraceDB<BlockChain>>,
engine: Arc<Engine>,
config: ClientConfig,
db: RwLock<Arc<Database>>,
pruning: journaldb::Algorithm,
state_db: RwLock<Box<JournalDB>>,
db: RwLock<Arc<Database>>,
state_db: Mutex<StateDB>,
block_queue: BlockQueue,
report: RwLock<ClientReport>,
import_lock: Mutex<()>,
@ -171,14 +171,15 @@ impl Client {
let chain = Arc::new(BlockChain::new(config.blockchain.clone(), &gb, db.clone()));
let tracedb = RwLock::new(TraceDB::new(config.tracing.clone(), db.clone(), chain.clone()));
let mut state_db = journaldb::new(db.clone(), config.pruning, ::db::COL_STATE);
if state_db.is_empty() && try!(spec.ensure_db_good(state_db.as_hashdb_mut())) {
let journal_db = journaldb::new(db.clone(), config.pruning, ::db::COL_STATE);
let mut state_db = StateDB::new(journal_db);
if state_db.journal_db().is_empty() && try!(spec.ensure_db_good(&mut state_db)) {
let mut batch = DBTransaction::new(&db);
try!(state_db.commit(&mut batch, 0, &spec.genesis_header().hash(), None));
try!(db.write(batch).map_err(ClientError::Database));
}
if !chain.block_header(&chain.best_block_hash()).map_or(true, |h| state_db.contains(h.state_root())) {
if !chain.block_header(&chain.best_block_hash()).map_or(true, |h| state_db.journal_db().contains(h.state_root())) {
warn!("State root not found for block #{} ({})", chain.best_block_number(), chain.best_block_hash().hex());
}
@ -207,7 +208,7 @@ impl Client {
verifier: verification::new(config.verifier_type.clone()),
config: config,
db: RwLock::new(db),
state_db: RwLock::new(state_db),
state_db: Mutex::new(state_db),
block_queue: block_queue,
report: RwLock::new(Default::default()),
import_lock: Mutex::new(()),
@ -298,7 +299,8 @@ impl Client {
// Enact Verified Block
let parent = chain_has_parent.unwrap();
let last_hashes = self.build_last_hashes(header.parent_hash().clone());
let db = self.state_db.read().boxed_clone();
let is_canon = header.parent_hash() == &chain.best_block_hash();
let db = if is_canon { self.state_db.lock().boxed_clone_canon() } else { self.state_db.lock().boxed_clone() };
let enact_result = enact_verified(block, engine, self.tracedb.read().tracing_enabled(), db, &parent, last_hashes, self.factories.clone());
if let Err(e) = enact_result {
@ -441,7 +443,8 @@ impl Client {
// CHECK! I *think* this is fine, even if the state_root is equal to another
// already-imported block of the same number.
// TODO: Prove it with a test.
block.drain().commit(&mut batch, number, hash, ancient).expect("DB commit failed.");
let mut state = block.drain();
state.commit(&mut batch, number, hash, ancient).expect("DB commit failed.");
let route = chain.insert_block(&mut batch, block_data, receipts);
self.tracedb.read().import(&mut batch, TraceImportRequest {
@ -454,7 +457,6 @@ impl Client {
// Final commit to the DB
self.db.read().write_buffered(batch);
chain.commit();
self.update_last_hashes(&parent, hash);
route
}
@ -496,7 +498,7 @@ impl Client {
};
self.block_header(id).and_then(|header| {
let db = self.state_db.read().boxed_clone();
let db = self.state_db.lock().boxed_clone();
// early exit for pruned blocks
if db.is_pruned() && self.chain.read().best_block_number() >= block_number + HISTORY {
@ -527,7 +529,7 @@ impl Client {
/// Get a copy of the best block's state.
pub fn state(&self) -> State {
State::from_existing(
self.state_db.read().boxed_clone(),
self.state_db.lock().boxed_clone(),
HeaderView::new(&self.best_block_header()).state_root(),
self.engine.account_start_nonce(),
self.factories.clone())
@ -542,7 +544,7 @@ impl Client {
/// Get the report.
pub fn report(&self) -> ClientReport {
let mut report = self.report.read().clone();
report.state_db_mem = self.state_db.read().mem_used();
report.state_db_mem = self.state_db.lock().mem_used();
report
}
@ -598,7 +600,7 @@ impl Client {
/// Take a snapshot at the given block.
/// If the ID given is "latest", this will default to 1000 blocks behind.
pub fn take_snapshot<W: snapshot_io::SnapshotWriter + Send>(&self, writer: W, at: BlockID, p: &snapshot::Progress) -> Result<(), EthcoreError> {
let db = self.state_db.read().boxed_clone();
let db = self.state_db.lock().journal_db().boxed_clone();
let best_block_number = self.chain_info().best_block_number;
let block_number = try!(self.block_number(at).ok_or(snapshot::Error::InvalidStartingBlock(at)));
@ -677,14 +679,14 @@ impl snapshot::DatabaseRestore for Client {
trace!(target: "snapshot", "Replacing client database with {:?}", new_db);
let _import_lock = self.import_lock.lock();
let mut state_db = self.state_db.write();
let mut state_db = self.state_db.lock();
let mut chain = self.chain.write();
let mut tracedb = self.tracedb.write();
self.miner.clear();
let db = self.db.write();
try!(db.restore(new_db));
*state_db = journaldb::new(db.clone(), self.pruning, ::db::COL_STATE);
*state_db = StateDB::new(journaldb::new(db.clone(), self.pruning, ::db::COL_STATE));
*chain = Arc::new(BlockChain::new(self.config.blockchain.clone(), &[], db.clone()));
*tracedb = TraceDB::new(self.config.tracing.clone(), db.clone(), chain.clone());
Ok(())
@ -908,7 +910,7 @@ impl BlockChainClient for Client {
}
fn state_data(&self, hash: &H256) -> Option<Bytes> {
self.state_db.read().state(hash)
self.state_db.lock().journal_db().state(hash)
}
fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
@ -1050,7 +1052,7 @@ impl MiningBlockChainClient for Client {
engine,
self.factories.clone(),
false, // TODO: this will need to be parameterised once we want to do immediate mining insertion.
self.state_db.read().boxed_clone(),
self.state_db.lock().boxed_clone(),
&chain.block_header(&h).expect("h is best block hash: so its header must exist: qed"),
self.build_last_hashes(h.clone()),
author,

10
ethcore/src/client/test_client.rs
View File

@ -42,6 +42,7 @@ use block::{OpenBlock, SealedBlock};
use executive::Executed;
use error::CallError;
use trace::LocalizedTrace;
use state_db::StateDB;
/// Test client.
pub struct TestBlockChainClient {
@ -283,13 +284,14 @@ impl TestBlockChainClient {
}
}
pub fn get_temp_journal_db() -> GuardedTempResult<Box<JournalDB>> {
pub fn get_temp_state_db() -> GuardedTempResult<StateDB> {
let temp = RandomTempPath::new();
let db = Database::open_default(temp.as_str()).unwrap();
let journal_db = journaldb::new(Arc::new(db), journaldb::Algorithm::EarlyMerge, None);
let state_db = StateDB::new(journal_db);
GuardedTempResult {
_temp: temp,
result: Some(journal_db)
result: Some(state_db)
}
}
@ -297,9 +299,9 @@ impl MiningBlockChainClient for TestBlockChainClient {
fn prepare_open_block(&self, author: Address, gas_range_target: (U256, U256), extra_data: Bytes) -> OpenBlock {
let engine = &*self.spec.engine;
let genesis_header = self.spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
self.spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
self.spec.ensure_db_good(&mut db).unwrap();
let last_hashes = vec![genesis_header.hash()];
let mut open_block = OpenBlock::new(

4
ethcore/src/engines/basic_authority.rs
View File

@ -252,9 +252,9 @@ mod tests {
let spec = new_test_authority();
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, addr, (3141562.into(), 31415620.into()), vec![]).unwrap();
let b = b.close_and_lock();

4
ethcore/src/engines/instant_seal.rs
View File

@ -81,9 +81,9 @@ mod tests {
let spec = Spec::new_test_instant();
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, addr, (3141562.into(), 31415620.into()), vec![]).unwrap();
let b = b.close_and_lock();

8
ethcore/src/ethereum/ethash.rs
View File

@ -355,9 +355,9 @@ mod tests {
let spec = new_morden();
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, Address::zero(), (3141562.into(), 31415620.into()), vec![]).unwrap();
let b = b.close();
@ -369,9 +369,9 @@ mod tests {
let spec = new_morden();
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let last_hashes = Arc::new(vec![genesis_header.hash()]);
let mut b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, Address::zero(), (3141562.into(), 31415620.into()), vec![]).unwrap();
let mut uncle = Header::new();

4
ethcore/src/ethereum/mod.rs
View File

@ -69,9 +69,9 @@ mod tests {
let spec = new_morden();
let engine = &spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
spec.ensure_db_good(&mut db).unwrap();
let s = State::from_existing(db, genesis_header.state_root().clone(), engine.account_start_nonce(), Default::default()).unwrap();
assert_eq!(s.balance(&"0000000000000000000000000000000000000001".into()), 1u64.into());
assert_eq!(s.balance(&"0000000000000000000000000000000000000002".into()), 1u64.into());

2
ethcore/src/evm/tests.rs
View File

@ -141,7 +141,7 @@ impl Ext for FakeExt {
}
fn extcodesize(&self, address: &Address) -> usize {
self.codes.get(address).map(|v| v.len()).unwrap_or(0)
self.codes.get(address).map_or(0, |c| c.len())
}
fn log(&mut self, topics: Vec<H256>, data: &[u8]) {

1
ethcore/src/externalities.rs
View File

@ -209,7 +209,6 @@ impl<'a, T, V> Ext for Externalities<'a, T, V> where T: 'a + Tracer, V: 'a + VMT
self.state.code_size(address).unwrap_or(0)
}
#[cfg_attr(feature="dev", allow(match_ref_pats))]
fn ret(mut self, gas: &U256, data: &[u8]) -> evm::Result<U256>
where Self: Sized {

2
ethcore/src/lib.rs
View File

@ -110,6 +110,7 @@ extern crate lazy_static;
extern crate heapsize;
#[macro_use]
extern crate ethcore_ipc as ipc;
extern crate lru_cache;
#[cfg(feature = "jit" )]
extern crate evmjit;
@ -142,6 +143,7 @@ mod basic_types;
mod env_info;
mod pod_account;
mod state;
mod state_db;
mod account_db;
mod builtin;
mod executive;

2
ethcore/src/pod_account.rs
View File

@ -48,7 +48,7 @@ impl PodAccount {
PodAccount {
balance: *acc.balance(),
nonce: *acc.nonce(),
storage: acc.storage_overlay().iter().fold(BTreeMap::new(), |mut m, (k, &(_, ref v))| {m.insert(k.clone(), v.clone()); m}),
storage: acc.storage_changes().iter().fold(BTreeMap::new(), |mut m, (k, v)| {m.insert(k.clone(), v.clone()); m}),
code: acc.code().map(|x| x.to_vec()),
}
}

11
ethcore/src/snapshot/account.rs
View File

@ -205,7 +205,7 @@ impl Account {
#[cfg(test)]
mod tests {
use account_db::{AccountDB, AccountDBMut};
use tests::helpers::get_temp_journal_db;
use tests::helpers::get_temp_state_db;
use snapshot::tests::helpers::fill_storage;
use util::sha3::{SHA3_EMPTY, SHA3_NULL_RLP};
@ -218,8 +218,7 @@ mod tests {
#[test]
fn encoding_basic() {
let mut db = get_temp_journal_db();
let mut db = &mut **db;
let mut db = get_temp_state_db();
let addr = Address::random();
let account = Account {
@ -239,8 +238,7 @@ mod tests {
#[test]
fn encoding_storage() {
let mut db = get_temp_journal_db();
let mut db = &mut **db;
let mut db = get_temp_state_db();
let addr = Address::random();
let account = {
@ -265,8 +263,7 @@ mod tests {
#[test]
fn encoding_code() {
let mut db = get_temp_journal_db();
let mut db = &mut **db;
let mut db = get_temp_state_db();
let addr1 = Address::random();
let addr2 = Address::random();

11
ethcore/src/spec/spec.rs
View File

@ -20,6 +20,7 @@ use common::*;
use engines::{Engine, NullEngine, InstantSeal, BasicAuthority};
use pod_state::*;
use account_db::*;
use state_db::StateDB;
use super::genesis::Genesis;
use super::seal::Generic as GenericSeal;
use ethereum;
@ -226,19 +227,19 @@ impl Spec {
}
/// Ensure that the given state DB has the trie nodes in for the genesis state.
pub fn ensure_db_good(&self, db: &mut HashDB) -> Result<bool, Box<TrieError>> {
if !db.contains(&self.state_root()) {
pub fn ensure_db_good(&self, db: &mut StateDB) -> Result<bool, Box<TrieError>> {
if !db.as_hashdb().contains(&self.state_root()) {
let mut root = H256::new();
{
let mut t = SecTrieDBMut::new(db, &mut root);
let mut t = SecTrieDBMut::new(db.as_hashdb_mut(), &mut root);
for (address, account) in self.genesis_state.get().iter() {
try!(t.insert(&**address, &account.rlp()));
}
}
for (address, account) in self.genesis_state.get().iter() {
account.insert_additional(&mut AccountDBMut::new(db, address));
account.insert_additional(&mut AccountDBMut::new(db.as_hashdb_mut(), address));
}
assert!(db.contains(&self.state_root()));
assert!(db.as_hashdb().contains(&self.state_root()));
Ok(true)
} else { Ok(false) }
}

214
ethcore/src/state/account.rs
View File

@ -20,11 +20,13 @@ use std::collections::hash_map::Entry;
use util::*;
use pod_account::*;
use rlp::*;
use lru_cache::LruCache;
use std::cell::{Ref, RefCell, Cell};
use std::cell::{RefCell, Cell};
const STORAGE_CACHE_ITEMS: usize = 4096;
/// Single account in the system.
#[derive(Clone)]
pub struct Account {
// Balance of the account.
balance: U256,
@ -32,10 +34,16 @@ pub struct Account {
nonce: U256,
// Trie-backed storage.
storage_root: H256,
// Overlay on trie-backed storage - tuple is (<clean>, <value>).
storage_overlay: RefCell<HashMap<H256, (Filth, H256)>>,
// LRU Cache of the trie-backed storage.
// This is limited to `STORAGE_CACHE_ITEMS` recent queries
storage_cache: RefCell<LruCache<H256, H256>>,
// Modified storage. Accumulates changes to storage made in `set_storage`
// Takes precedence over `storage_cache`.
storage_changes: HashMap<H256, H256>,
// Code hash of the account. If None, means that it's a contract whose code has not yet been set.
code_hash: Option<H256>,
// Size of the accoun code.
code_size: Option<usize>,
// Code cache of the account.
code_cache: Bytes,
// Account is new or has been modified
@ -52,23 +60,31 @@ impl Account {
balance: balance,
nonce: nonce,
storage_root: SHA3_NULL_RLP,
storage_overlay: RefCell::new(storage.into_iter().map(|(k, v)| (k, (Filth::Dirty, v))).collect()),
storage_cache: Self::empty_storage_cache(),
storage_changes: storage,
code_hash: Some(code.sha3()),
code_size: Some(code.len()),
code_cache: code,
filth: Filth::Dirty,
address_hash: Cell::new(None),
}
}
fn empty_storage_cache() -> RefCell<LruCache<H256, H256>> {
RefCell::new(LruCache::new(STORAGE_CACHE_ITEMS))
}
/// General constructor.
pub fn from_pod(pod: PodAccount) -> Account {
Account {
balance: pod.balance,
nonce: pod.nonce,
storage_root: SHA3_NULL_RLP,
storage_overlay: RefCell::new(pod.storage.into_iter().map(|(k, v)| (k, (Filth::Dirty, v))).collect()),
storage_cache: Self::empty_storage_cache(),
storage_changes: pod.storage.into_iter().collect(),
code_hash: pod.code.as_ref().map(|c| c.sha3()),
code_cache: pod.code.as_ref().map_or_else(|| { warn!("POD account with unknown code is being created! Assuming no code."); vec![] }, |c| c.clone()),
code_size: Some(pod.code.as_ref().map_or(0, |c| c.len())),
code_cache: pod.code.map_or_else(|| { warn!("POD account with unknown code is being created! Assuming no code."); vec![] }, |c| c),
filth: Filth::Dirty,
address_hash: Cell::new(None),
}
@ -80,9 +96,11 @@ impl Account {
balance: balance,
nonce: nonce,
storage_root: SHA3_NULL_RLP,
storage_overlay: RefCell::new(HashMap::new()),
storage_cache: Self::empty_storage_cache(),
storage_changes: HashMap::new(),
code_hash: Some(SHA3_EMPTY),
code_cache: vec![],
code_size: Some(0),
filth: Filth::Dirty,
address_hash: Cell::new(None),
}
@ -95,9 +113,11 @@ impl Account {
nonce: r.val_at(0),
balance: r.val_at(1),
storage_root: r.val_at(2),
storage_overlay: RefCell::new(HashMap::new()),
storage_cache: Self::empty_storage_cache(),
storage_changes: HashMap::new(),
code_hash: Some(r.val_at(3)),
code_cache: vec![],
code_size: None,
filth: Filth::Clean,
address_hash: Cell::new(None),
}
@ -110,9 +130,11 @@ impl Account {
balance: balance,
nonce: nonce,
storage_root: SHA3_NULL_RLP,
storage_overlay: RefCell::new(HashMap::new()),
storage_cache: Self::empty_storage_cache(),
storage_changes: HashMap::new(),
code_hash: None,
code_cache: vec![],
code_size: None,
filth: Filth::Dirty,
address_hash: Cell::new(None),
}
@ -123,44 +145,62 @@ impl Account {
pub fn init_code(&mut self, code: Bytes) {
assert!(self.code_hash.is_none());
self.code_cache = code;
self.code_size = Some(self.code_cache.len());
self.filth = Filth::Dirty;
}
/// Reset this account's code to the given code.
pub fn reset_code(&mut self, code: Bytes) {
self.code_hash = None;
self.code_size = Some(0);
self.init_code(code);
}
/// Set (and cache) the contents of the trie's storage at `key` to `value`.
pub fn set_storage(&mut self, key: H256, value: H256) {
match self.storage_overlay.borrow_mut().entry(key) {
Entry::Occupied(ref mut entry) if entry.get().1 != value => {
entry.insert((Filth::Dirty, value));
match self.storage_changes.entry(key) {
Entry::Occupied(ref mut entry) if entry.get() != &value => {
entry.insert(value);
self.filth = Filth::Dirty;
},
Entry::Vacant(entry) => {
entry.insert((Filth::Dirty, value));
entry.insert(value);
self.filth = Filth::Dirty;
},
_ => (),
_ => {},
}
}
/// Get (and cache) the contents of the trie's storage at `key`.
/// Takes modifed storage into account.
pub fn storage_at(&self, db: &HashDB, key: &H256) -> H256 {
self.storage_overlay.borrow_mut().entry(key.clone()).or_insert_with(||{
let db = SecTrieDB::new(db, &self.storage_root)
.expect("Account storage_root initially set to zero (valid) and only altered by SecTrieDBMut. \
SecTrieDBMut would not set it to an invalid state root. Therefore the root is valid and DB creation \
using it will not fail.");
if let Some(value) = self.cached_storage_at(key) {
return value;
}
let db = SecTrieDB::new(db, &self.storage_root)
.expect("Account storage_root initially set to zero (valid) and only altered by SecTrieDBMut. \
SecTrieDBMut would not set it to an invalid state root. Therefore the root is valid and DB creation \
using it will not fail.");
let item: U256 = match db.get(key){
Ok(x) => x.map_or_else(U256::zero, decode),
Err(e) => panic!("Encountered potential DB corruption: {}", e),
};
(Filth::Clean, item.into())
}).1.clone()
let item: U256 = match db.get(key){
Ok(x) => x.map_or_else(U256::zero, decode),
Err(e) => panic!("Encountered potential DB corruption: {}", e),
};
let value: H256 = item.into();
self.storage_cache.borrow_mut().insert(key.clone(), value.clone());
value
}
/// Get cached storage value if any. Returns `None` if the
/// key is not in the cache.
pub fn cached_storage_at(&self, key: &H256) -> Option<H256> {
if let Some(value) = self.storage_changes.get(key) {
return Some(value.clone())
}
if let Some(value) = self.storage_cache.borrow_mut().get_mut(key) {
return Some(value.clone())
}
None
}
/// return the balance associated with this account.
@ -196,6 +236,12 @@ impl Account {
}
}
/// returns the account's code size. If `None` then the code cache or code size cache isn't available -
/// get someone who knows to call `note_code`.
pub fn code_size(&self) -> Option<usize> {
self.code_size.clone()
}
#[cfg(test)]
/// Provide a byte array which hashes to the `code_hash`. returns the hash as a result.
pub fn note_code(&mut self, code: Bytes) -> Result<(), H256> {
@ -203,6 +249,7 @@ impl Account {
match self.code_hash {
Some(ref i) if h == *i => {
self.code_cache = code;
self.code_size = Some(self.code_cache.len());
Ok(())
},
_ => Err(h)
@ -216,11 +263,12 @@ impl Account {
/// Is this a new or modified account?
pub fn is_dirty(&self) -> bool {
self.filth == Filth::Dirty
self.filth == Filth::Dirty || !self.storage_is_clean()
}
/// Mark account as clean.
pub fn set_clean(&mut self) {
assert!(self.storage_is_clean());
self.filth = Filth::Clean
}
@ -231,7 +279,31 @@ impl Account {
self.is_cached() ||
match self.code_hash {
Some(ref h) => match db.get(h) {
Some(x) => { self.code_cache = x.to_vec(); true },
Some(x) => {
self.code_cache = x.to_vec();
self.code_size = Some(x.len());
true
},
_ => {
warn!("Failed reverse get of {}", h);
false
},
},
_ => false,
}
}
/// Provide a database to get `code_size`. Should not be called if it is a contract without code.
pub fn cache_code_size(&mut self, db: &HashDB) -> bool {
// TODO: fill out self.code_cache;
trace!("Account::cache_code_size: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());
self.code_size.is_some() ||
match self.code_hash {
Some(ref h) if h != &SHA3_EMPTY => match db.get(h) {
Some(x) => {
self.code_size = Some(x.len());
true
},
_ => {
warn!("Failed reverse get of {}", h);
false
@ -241,16 +313,15 @@ impl Account {
}
}
#[cfg(test)]
/// Determine whether there are any un-`commit()`-ed storage-setting operations.
pub fn storage_is_clean(&self) -> bool { self.storage_overlay.borrow().iter().find(|&(_, &(f, _))| f == Filth::Dirty).is_none() }
pub fn storage_is_clean(&self) -> bool { self.storage_changes.is_empty() }
#[cfg(test)]
/// return the storage root associated with this account or None if it has been altered via the overlay.
pub fn storage_root(&self) -> Option<&H256> { if self.storage_is_clean() {Some(&self.storage_root)} else {None} }
/// return the storage overlay.
pub fn storage_overlay(&self) -> Ref<HashMap<H256, (Filth, H256)>> { self.storage_overlay.borrow() }
pub fn storage_changes(&self) -> &HashMap<H256, H256> { &self.storage_changes }
/// Increment the nonce of the account by one.
pub fn inc_nonce(&mut self) {
@ -276,26 +347,24 @@ impl Account {
}
}
/// Commit the `storage_overlay` to the backing DB and update `storage_root`.
/// Commit the `storage_changes` to the backing DB and update `storage_root`.
pub fn commit_storage(&mut self, trie_factory: &TrieFactory, db: &mut HashDB) {
let mut t = trie_factory.from_existing(db, &mut self.storage_root)
.expect("Account storage_root initially set to zero (valid) and only altered by SecTrieDBMut. \
SecTrieDBMut would not set it to an invalid state root. Therefore the root is valid and DB creation \
using it will not fail.");
for (k, &mut (ref mut f, ref mut v)) in self.storage_overlay.borrow_mut().iter_mut() {
if f == &Filth::Dirty {
// cast key and value to trait type,
// so we can call overloaded `to_bytes` method
let res = match v.is_zero() {
true => t.remove(k),
false => t.insert(k, &encode(&U256::from(&*v))),
};
for (k, v) in self.storage_changes.drain() {
// cast key and value to trait type,
// so we can call overloaded `to_bytes` method
let res = match v.is_zero() {
true => t.remove(&k),
false => t.insert(&k, &encode(&U256::from(&*v))),
};
if let Err(e) = res {
warn!("Encountered potential DB corruption: {}", e);
}
*f = Filth::Clean;
if let Err(e) = res {
warn!("Encountered potential DB corruption: {}", e);
}
self.storage_cache.borrow_mut().insert(k, v);
}
}
@ -303,9 +372,13 @@ impl Account {
pub fn commit_code(&mut self, db: &mut HashDB) {
trace!("Commiting code of {:?} - {:?}, {:?}", self, self.code_hash.is_none(), self.code_cache.is_empty());
match (self.code_hash.is_none(), self.code_cache.is_empty()) {
(true, true) => self.code_hash = Some(SHA3_EMPTY),
(true, true) => {
self.code_hash = Some(SHA3_EMPTY);
self.code_size = Some(0);
},
(true, false) => {
self.code_hash = Some(db.insert(&self.code_cache));
self.code_size = Some(self.code_cache.len());
},
(false, _) => {},
}
@ -317,9 +390,57 @@ impl Account {
stream.append(&self.nonce);
stream.append(&self.balance);
stream.append(&self.storage_root);
stream.append(self.code_hash.as_ref().expect("Cannot form RLP of contract account without code."));
stream.append(self.code_hash.as_ref().unwrap_or(&SHA3_EMPTY));
stream.out()
}
/// Clone basic account data
pub fn clone_basic(&self) -> Account {
Account {
balance: self.balance.clone(),
nonce: self.nonce.clone(),
storage_root: self.storage_root.clone(),
storage_cache: Self::empty_storage_cache(),
storage_changes: HashMap::new(),
code_hash: self.code_hash.clone(),
code_size: self.code_size.clone(),
code_cache: Bytes::new(),
filth: self.filth,
address_hash: self.address_hash.clone(),
}
}
/// Clone account data and dirty storage keys
pub fn clone_dirty(&self) -> Account {
let mut account = self.clone_basic();
account.storage_changes = self.storage_changes.clone();
account.code_cache = self.code_cache.clone();
account
}
/// Clone account data, dirty storage keys and cached storage keys.
pub fn clone_all(&self) -> Account {
let mut account = self.clone_dirty();
account.storage_cache = self.storage_cache.clone();
account
}
/// Replace self with the data from other account merging storage cache
pub fn merge_with(&mut self, other: Account) {
assert!(self.storage_is_clean());
assert!(other.storage_is_clean());
self.balance = other.balance;
self.nonce = other.nonce;
self.storage_root = other.storage_root;
self.code_hash = other.code_hash;
self.code_cache = other.code_cache;
self.code_size = other.code_size;
self.address_hash = other.address_hash;
let mut cache = self.storage_cache.borrow_mut();
for (k, v) in other.storage_cache.into_inner().into_iter() {
cache.insert(k.clone() , v.clone()); //TODO: cloning should not be required here
}
}
}
impl fmt::Debug for Account {
@ -416,6 +537,7 @@ mod tests {
let mut db = AccountDBMut::new(&mut db, &Address::new());
a.init_code(vec![0x55, 0x44, 0xffu8]);
assert_eq!(a.code_hash(), SHA3_EMPTY);
assert_eq!(a.code_size(), Some(3));
a.commit_code(&mut db);
assert_eq!(a.code_hash().hex(), "af231e631776a517ca23125370d542873eca1fb4d613ed9b5d5335a46ae5b7eb");
}

351
ethcore/src/state/mod.rs
View File

@ -23,6 +23,7 @@ use trace::FlatTrace;
use pod_account::*;
use pod_state::{self, PodState};
use types::state_diff::StateDiff;
use state_db::StateDB;
mod account;
mod substate;
@ -41,23 +42,92 @@ pub struct ApplyOutcome {
/// Result type for the execution ("application") of a transaction.
pub type ApplyResult = Result<ApplyOutcome, Error>;
#[derive(Debug)]
enum AccountEntry {
/// Contains account data.
Cached(Account),
/// Account has been deleted.
Killed,
/// Account does not exist.
Missing,
}
impl AccountEntry {
fn is_dirty(&self) -> bool {
match *self {
AccountEntry::Cached(ref a) => a.is_dirty(),
AccountEntry::Killed => true,
AccountEntry::Missing => false,
}
}
/// Clone dirty data into new `AccountEntry`.
/// Returns None if clean.
fn clone_dirty(&self) -> Option<AccountEntry> {
match *self {
AccountEntry::Cached(ref acc) if acc.is_dirty() => Some(AccountEntry::Cached(acc.clone_dirty())),
AccountEntry::Killed => Some(AccountEntry::Killed),
_ => None,
}
}
/// Clone account entry data that needs to be saved in the snapshot.
/// This includes basic account information and all locally cached storage keys
fn clone_for_snapshot(&self) -> AccountEntry {
match *self {
AccountEntry::Cached(ref acc) => AccountEntry::Cached(acc.clone_all()),
AccountEntry::Killed => AccountEntry::Killed,
AccountEntry::Missing => AccountEntry::Missing,
}
}
}
/// Representation of the entire state of all accounts in the system.
///
/// `State` can work together with `StateDB` to share account cache.
///
/// Local cache contains changes made locally and changes accumulated
/// locally from previous commits. Global cache reflects the database
/// state and never contains any changes.
///
/// Account data can be in the following cache states:
/// * In global but not local - something that was queried from the database,
/// but never modified
/// * In local but not global - something that was just added (e.g. new account)
/// * In both with the same value - something that was changed to a new value,
/// but changed back to a previous block in the same block (same State instance)
/// * In both with different values - something that was overwritten with a
/// new value.
///
/// All read-only state queries check local cache/modifications first,
/// then global state cache. If data is not found in any of the caches
/// it is loaded from the DB to the local cache.
///
/// Upon destruction all the local cache data merged into the global cache.
/// The merge might be rejected if current state is non-canonical.
pub struct State {
db: Box<JournalDB>,
db: StateDB,
root: H256,
cache: RefCell<HashMap<Address, Option<Account>>>,
snapshots: RefCell<Vec<HashMap<Address, Option<Option<Account>>>>>,
cache: RefCell<HashMap<Address, AccountEntry>>,
snapshots: RefCell<Vec<HashMap<Address, Option<AccountEntry>>>>,
account_start_nonce: U256,
factories: Factories,
}
#[derive(Copy, Clone)]
enum RequireCache {
None,
CodeSize,
Code,
}
const SEC_TRIE_DB_UNWRAP_STR: &'static str = "A state can only be created with valid root. Creating a SecTrieDB with a valid root will not fail. \
Therefore creating a SecTrieDB with this state's root will not fail.";
impl State {
/// Creates new state with empty state root
#[cfg(test)]
pub fn new(mut db: Box<JournalDB>, account_start_nonce: U256, factories: Factories) -> State {
pub fn new(mut db: StateDB, account_start_nonce: U256, factories: Factories) -> State {
let mut root = H256::new();
{
// init trie and reset root too null
@ -75,7 +145,7 @@ impl State {
}
/// Creates new state with existing state root
pub fn from_existing(db: Box<JournalDB>, root: H256, account_start_nonce: U256, factories: Factories) -> Result<State, TrieError> {
pub fn from_existing(db: StateDB, root: H256, account_start_nonce: U256, factories: Factories) -> Result<State, TrieError> {
if !db.as_hashdb().contains(&root) {
return Err(TrieError::InvalidStateRoot(root));
}
@ -119,14 +189,21 @@ impl State {
self.cache.borrow_mut().insert(k, v);
},
None => {
self.cache.borrow_mut().remove(&k);
match self.cache.borrow_mut().entry(k) {
::std::collections::hash_map::Entry::Occupied(e) => {
if e.get().is_dirty() {
e.remove();
}
},
_ => {}
}
}
}
}
}
}
fn insert_cache(&self, address: &Address, account: Option<Account>) {
fn insert_cache(&self, address: &Address, account: AccountEntry) {
if let Some(ref mut snapshot) = self.snapshots.borrow_mut().last_mut() {
if !snapshot.contains_key(address) {
snapshot.insert(address.clone(), self.cache.borrow_mut().insert(address.clone(), account));
@ -139,13 +216,14 @@ impl State {
fn note_cache(&self, address: &Address) {
if let Some(ref mut snapshot) = self.snapshots.borrow_mut().last_mut() {
if !snapshot.contains_key(address) {
snapshot.insert(address.clone(), self.cache.borrow().get(address).cloned());
snapshot.insert(address.clone(), self.cache.borrow().get(address).map(AccountEntry::clone_for_snapshot));
}
}
}
/// Destroy the current object and return root and database.
pub fn drop(self) -> (H256, Box<JournalDB>) {
pub fn drop(mut self) -> (H256, StateDB) {
self.commit_cache();
(self.root, self.db)
}
@ -157,50 +235,99 @@ impl State {
/// Create a new contract at address `contract`. If there is already an account at the address
/// it will have its code reset, ready for `init_code()`.
pub fn new_contract(&mut self, contract: &Address, balance: U256) {
self.insert_cache(contract, Some(Account::new_contract(balance, self.account_start_nonce)));
self.insert_cache(contract, AccountEntry::Cached(Account::new_contract(balance, self.account_start_nonce)));
}
/// Remove an existing account.
pub fn kill_account(&mut self, account: &Address) {
self.insert_cache(account, None);
self.insert_cache(account, AccountEntry::Killed);
}
/// Determine whether an account exists.
pub fn exists(&self, a: &Address) -> bool {
self.ensure_cached(a, false, |a| a.is_some())
self.ensure_cached(a, RequireCache::None, |a| a.is_some())
}
/// Get the balance of account `a`.
pub fn balance(&self, a: &Address) -> U256 {
self.ensure_cached(a, false,
self.ensure_cached(a, RequireCache::None,
|a| a.as_ref().map_or(U256::zero(), |account| *account.balance()))
}
/// Get the nonce of account `a`.
pub fn nonce(&self, a: &Address) -> U256 {
self.ensure_cached(a, false,
self.ensure_cached(a, RequireCache::None,
|a| a.as_ref().map_or(self.account_start_nonce, |account| *account.nonce()))
}
/// Mutate storage of account `address` so that it is `value` for `key`.
pub fn storage_at(&self, address: &Address, key: &H256) -> H256 {
self.ensure_cached(address, false, |a| a.as_ref().map_or(H256::new(), |a| {
let addr_hash = a.address_hash(address);
let db = self.factories.accountdb.readonly(self.db.as_hashdb(), addr_hash);
a.storage_at(db.as_hashdb(), key)
}))
// Storage key search and update works like this:
// 1. If there's an entry for the account in the local cache check for the key and return it if found.
// 2. If there's an entry for the account in the global cache check for the key or load it into that account.
// 3. If account is missing in the global cache load it into the local cache and cache the key there.
// check local cache first without updating
{
let local_cache = self.cache.borrow_mut();
let mut local_account = None;
if let Some(maybe_acc) = local_cache.get(address) {
match *maybe_acc {
AccountEntry::Cached(ref account) => {
if let Some(value) = account.cached_storage_at(key) {
return value;
} else {
local_account = Some(maybe_acc);
}
},
_ => return H256::new(),
}
}
// check the global cache and and cache storage key there if found,
// otherwise cache the account localy and cache storage key there.
if let Some(result) = self.db.get_cached(address, |acc| acc.map_or(H256::new(), |a| {
let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
a.storage_at(account_db.as_hashdb(), key)
})) {
return result;
}
if let Some(ref mut acc) = local_account {
if let AccountEntry::Cached(ref account) = **acc {
let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(address));
return account.storage_at(account_db.as_hashdb(), key)
} else {
return H256::new()
}
}
}
// account is not found in the global cache, get from the DB and insert into local
let db = self.factories.trie.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
let maybe_acc = match db.get(address) {
Ok(acc) => acc.map(Account::from_rlp),
Err(e) => panic!("Potential DB corruption encountered: {}", e),
};
let r = maybe_acc.as_ref().map_or(H256::new(), |a| {
let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
a.storage_at(account_db.as_hashdb(), key)
});
match maybe_acc {
Some(account) => self.insert_cache(address, AccountEntry::Cached(account)),
None => self.insert_cache(address, AccountEntry::Missing),
}
r
}
/// Get the code of account `a`.
/// Get accounts' code.
pub fn code(&self, a: &Address) -> Option<Bytes> {
self.ensure_cached(a, true,
|a| a.as_ref().map_or(None, |a| a.code().map(|x| x.to_vec())))
self.ensure_cached(a, RequireCache::Code,
|a| a.as_ref().map_or(None, |a| a.code().map(|x|x.to_vec())))
}
/// Get the code size of account `a`.
/// Get accounts' code size.
pub fn code_size(&self, a: &Address) -> Option<usize> {
self.ensure_cached(a, true,
|a| a.as_ref().map_or(None, |a| a.code().map(|x| x.len())))
self.ensure_cached(a, RequireCache::CodeSize,
|a| a.as_ref().and_then(|a| a.code_size()))
}
/// Add `incr` to the balance of account `a`.
@ -262,19 +389,19 @@ impl State {
/// Commit accounts to SecTrieDBMut. This is similar to cpp-ethereum's dev::eth::commit.
/// `accounts` is mutable because we may need to commit the code or storage and record that.
#[cfg_attr(feature="dev", allow(match_ref_pats))]
pub fn commit_into(
fn commit_into(
factories: &Factories,
db: &mut HashDB,
db: &mut StateDB,
root: &mut H256,
accounts: &mut HashMap<Address, Option<Account>>
accounts: &mut HashMap<Address, AccountEntry>
) -> Result<(), Error> {
// first, commit the sub trees.
// TODO: is this necessary or can we dispense with the `ref mut a` for just `a`?
for (address, ref mut a) in accounts.iter_mut() {
match a {
&mut&mut Some(ref mut account) if account.is_dirty() => {
&mut&mut AccountEntry::Cached(ref mut account) if account.is_dirty() => {
let addr_hash = account.address_hash(address);
let mut account_db = factories.accountdb.create(db, addr_hash);
let mut account_db = factories.accountdb.create(db.as_hashdb_mut(), addr_hash);
account.commit_storage(&factories.trie, account_db.as_hashdb_mut());
account.commit_code(account_db.as_hashdb_mut());
}
@ -283,15 +410,18 @@ impl State {
}
{
let mut trie = factories.trie.from_existing(db, root).unwrap();
let mut trie = factories.trie.from_existing(db.as_hashdb_mut(), root).unwrap();
for (address, ref mut a) in accounts.iter_mut() {
match **a {
Some(ref mut account) if account.is_dirty() => {
AccountEntry::Cached(ref mut account) if account.is_dirty() => {
account.set_clean();
try!(trie.insert(address, &account.rlp()))
try!(trie.insert(address, &account.rlp()));
},
None => try!(trie.remove(address)),
_ => (),
AccountEntry::Killed => {
try!(trie.remove(address));
**a = AccountEntry::Missing;
},
_ => {},
}
}
}
@ -299,10 +429,27 @@ impl State {
Ok(())
}
fn commit_cache(&mut self) {
let mut addresses = self.cache.borrow_mut();
for (address, a) in addresses.drain() {
match a {
AccountEntry::Cached(account) => {
if !account.is_dirty() {
self.db.cache_account(address, Some(account));
}
},
AccountEntry::Missing => {
self.db.cache_account(address, None);
},
_ => {},
}
}
}
/// Commits our cached account changes into the trie.
pub fn commit(&mut self) -> Result<(), Error> {
assert!(self.snapshots.borrow().is_empty());
Self::commit_into(&self.factories, self.db.as_hashdb_mut(), &mut self.root, &mut *self.cache.borrow_mut())
Self::commit_into(&self.factories, &mut self.db, &mut self.root, &mut *self.cache.borrow_mut())
}
/// Clear state cache
@ -316,7 +463,7 @@ impl State {
pub fn populate_from(&mut self, accounts: PodState) {
assert!(self.snapshots.borrow().is_empty());
for (add, acc) in accounts.drain().into_iter() {
self.cache.borrow_mut().insert(add, Some(Account::from_pod(acc)));
self.cache.borrow_mut().insert(add, AccountEntry::Cached(Account::from_pod(acc)));
}
}
@ -326,7 +473,7 @@ impl State {
// TODO: handle database rather than just the cache.
// will need fat db.
PodState::from(self.cache.borrow().iter().fold(BTreeMap::new(), |mut m, (add, opt)| {
if let Some(ref acc) = *opt {
if let AccountEntry::Cached(ref acc) = *opt {
m.insert(add.clone(), PodAccount::from_account(acc));
}
m
@ -335,7 +482,7 @@ impl State {
fn query_pod(&mut self, query: &PodState) {
for (address, pod_account) in query.get() {
self.ensure_cached(address, true, |a| {
self.ensure_cached(address, RequireCache::Code, |a| {
if a.is_some() {
for key in pod_account.storage.keys() {
self.storage_at(address, key);
@ -354,28 +501,61 @@ impl State {
pod_state::diff_pod(&state_pre.to_pod(), &pod_state_post)
}
/// Ensure account `a` is in our cache of the trie DB and return a handle for getting it.
/// `require_code` requires that the code be cached, too.
fn ensure_cached<'a, F, U>(&'a self, a: &'a Address, require_code: bool, f: F) -> U
where F: FnOnce(&Option<Account>) -> U {
let have_key = self.cache.borrow().contains_key(a);
if !have_key {
let db = self.factories.trie.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
let maybe_acc = match db.get(a) {
Ok(acc) => acc.map(Account::from_rlp),
Err(e) => panic!("Potential DB corruption encountered: {}", e),
};
self.insert_cache(a, maybe_acc);
}
if require_code {
if let Some(ref mut account) = self.cache.borrow_mut().get_mut(a).unwrap().as_mut() {
let addr_hash = account.address_hash(a);
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), addr_hash);
account.cache_code(accountdb.as_hashdb());
fn update_account_cache(require: RequireCache, account: &mut Account, db: &HashDB) {
match require {
RequireCache::None => {},
RequireCache::Code => {
account.cache_code(db);
}
RequireCache::CodeSize => {
account.cache_code_size(db);
}
}
}
f(self.cache.borrow().get(a).unwrap())
/// Check caches for required data
/// First searches for account in the local, then the shared cache.
/// Populates local cache if nothing found.
fn ensure_cached<F, U>(&self, a: &Address, require: RequireCache, f: F) -> U
where F: Fn(Option<&Account>) -> U {
// check local cache first
if let Some(ref mut maybe_acc) = self.cache.borrow_mut().get_mut(a) {
if let AccountEntry::Cached(ref mut account) = **maybe_acc {
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
Self::update_account_cache(require, account, accountdb.as_hashdb());
return f(Some(account));
}
return f(None);
}
// check global cache
let result = self.db.get_cached(a, |mut acc| {
if let Some(ref mut account) = acc {
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
Self::update_account_cache(require, account, accountdb.as_hashdb());
}
f(acc.map(|a| &*a))
});
match result {
Some(r) => r,
None => {
// not found in the global cache, get from the DB and insert into local
let db = self.factories.trie.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
let mut maybe_acc = match db.get(a) {
Ok(acc) => acc.map(Account::from_rlp),
Err(e) => panic!("Potential DB corruption encountered: {}", e),
};
if let Some(ref mut account) = maybe_acc.as_mut() {
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
Self::update_account_cache(require, account, accountdb.as_hashdb());
}
let r = f(maybe_acc.as_ref());
match maybe_acc {
Some(account) => self.insert_cache(a, AccountEntry::Cached(account)),
None => self.insert_cache(a, AccountEntry::Missing),
}
r
}
}
}
/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
@ -390,30 +570,40 @@ impl State {
{
let contains_key = self.cache.borrow().contains_key(a);
if !contains_key {
let db = self.factories.trie.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
let maybe_acc = match db.get(a) {
Ok(acc) => acc.map(Account::from_rlp),
Err(e) => panic!("Potential DB corruption encountered: {}", e),
};
self.insert_cache(a, maybe_acc);
match self.db.get_cached_account(a) {
Some(Some(acc)) => self.insert_cache(a, AccountEntry::Cached(acc)),
Some(None) => self.insert_cache(a, AccountEntry::Missing),
None => {
let db = self.factories.trie.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
let maybe_acc = match db.get(a) {
Ok(Some(acc)) => AccountEntry::Cached(Account::from_rlp(acc)),
Ok(None) => AccountEntry::Missing,
Err(e) => panic!("Potential DB corruption encountered: {}", e),
};
self.insert_cache(a, maybe_acc);
}
}
} else {
self.note_cache(a);
}
match self.cache.borrow_mut().get_mut(a).unwrap() {
&mut Some(ref mut acc) => not_default(acc),
slot @ &mut None => *slot = Some(default()),
&mut AccountEntry::Cached(ref mut acc) => not_default(acc),
slot => *slot = AccountEntry::Cached(default()),
}
RefMut::map(self.cache.borrow_mut(), |c| {
let account = c.get_mut(a).unwrap().as_mut().unwrap();
if require_code {
let addr_hash = account.address_hash(a);
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), addr_hash);
account.cache_code(accountdb.as_hashdb());
match c.get_mut(a).unwrap() {
&mut AccountEntry::Cached(ref mut account) => {
if require_code {
let addr_hash = account.address_hash(a);
let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), addr_hash);
account.cache_code(accountdb.as_hashdb());
}
account
},
_ => panic!("Required account must always exist; qed"),
}
account
})
}
}
@ -427,17 +617,10 @@ impl fmt::Debug for State {
impl Clone for State {
fn clone(&self) -> State {
let cache = {
let mut cache = HashMap::new();
let mut cache: HashMap<Address, AccountEntry> = HashMap::new();
for (key, val) in self.cache.borrow().iter() {
let key = key.clone();
match *val {
Some(ref acc) if acc.is_dirty() => {
cache.insert(key, Some(acc.clone()));
},
None => {
cache.insert(key, None);
},
_ => {},
if let Some(entry) = val.clone_dirty() {
cache.insert(key.clone(), entry);
}
}
cache
@ -447,7 +630,7 @@ impl Clone for State {
db: self.db.boxed_clone(),
root: self.root.clone(),
cache: RefCell::new(cache),
snapshots: RefCell::new(self.snapshots.borrow().clone()),
snapshots: RefCell::new(Vec::new()),
account_start_nonce: self.account_start_nonce.clone(),
factories: self.factories.clone(),
}

161
ethcore/src/state_db.rs Normal file
View File

@ -0,0 +1,161 @@
// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
use lru_cache::LruCache;
use util::journaldb::JournalDB;
use util::hash::{H256};
use util::hashdb::HashDB;
use util::{Arc, Address, DBTransaction, UtilError, Mutex};
use state::Account;
const STATE_CACHE_ITEMS: usize = 65536;
struct AccountCache {
/// DB Account cache. `None` indicates that account is known to be missing.
accounts: LruCache<Address, Option<Account>>,
}
/// State database abstraction.
/// Manages shared global state cache.
/// A clone of `StateDB` may be created as canonical or not.
/// For canonical clones cache changes are accumulated and applied
/// on commit.
/// For non-canonical clones cache is cleared on commit.
pub struct StateDB {
db: Box<JournalDB>,
account_cache: Arc<Mutex<AccountCache>>,
cache_overlay: Vec<(Address, Option<Account>)>,
is_canon: bool,
}
impl StateDB {
/// Create a new instance wrapping `JournalDB`
pub fn new(db: Box<JournalDB>) -> StateDB {
StateDB {
db: db,
account_cache: Arc::new(Mutex::new(AccountCache { accounts: LruCache::new(STATE_CACHE_ITEMS) })),
cache_overlay: Vec::new(),
is_canon: false,
}
}
/// Commit all recent insert operations and canonical historical commits' removals from the
/// old era to the backing database, reverting any non-canonical historical commit's inserts.
pub fn commit(&mut self, batch: &mut DBTransaction, now: u64, id: &H256, end: Option<(u64, H256)>) -> Result<u32, UtilError> {
let records = try!(self.db.commit(batch, now, id, end));
if self.is_canon {
self.commit_cache();
} else {
self.clear_cache();
}
Ok(records)
}
/// Returns an interface to HashDB.
pub fn as_hashdb(&self) -> &HashDB {
self.db.as_hashdb()
}
/// Returns an interface to mutable HashDB.
pub fn as_hashdb_mut(&mut self) -> &mut HashDB {
self.db.as_hashdb_mut()
}
/// Clone the database.
pub fn boxed_clone(&self) -> StateDB {
StateDB {
db: self.db.boxed_clone(),
account_cache: self.account_cache.clone(),
cache_overlay: Vec::new(),
is_canon: false,
}
}
/// Clone the database for a canonical state.
pub fn boxed_clone_canon(&self) -> StateDB {
StateDB {
db: self.db.boxed_clone(),
account_cache: self.account_cache.clone(),
cache_overlay: Vec::new(),
is_canon: true,
}
}
/// Check if pruning is enabled on the database.
pub fn is_pruned(&self) -> bool {
self.db.is_pruned()
}
/// Heap size used.
pub fn mem_used(&self) -> usize {
self.db.mem_used() //TODO: + self.account_cache.lock().heap_size_of_children()
}
/// Returns underlying `JournalDB`.
pub fn journal_db(&self) -> &JournalDB {
&*self.db
}
/// Enqueue cache change.
pub fn cache_account(&mut self, addr: Address, data: Option<Account>) {
self.cache_overlay.push((addr, data));
}
/// Apply pending cache changes.
fn commit_cache(&mut self) {
let mut cache = self.account_cache.lock();
for (address, account) in self.cache_overlay.drain(..) {
if let Some(&mut Some(ref mut existing)) = cache.accounts.get_mut(&address) {
if let Some(new) = account {
existing.merge_with(new);
continue;
}
}
cache.accounts.insert(address, account);
}
}
/// Clear the cache.
pub fn clear_cache(&mut self) {
self.cache_overlay.clear();
let mut cache = self.account_cache.lock();
cache.accounts.clear();
}
/// Get basic copy of the cached account. Does not include storage.
/// Returns 'None' if the state is non-canonical and cache is disabled
/// or if the account is not cached.
pub fn get_cached_account(&self, addr: &Address) -> Option<Option<Account>> {
if !self.is_canon {
return None;
}
let mut cache = self.account_cache.lock();
cache.accounts.get_mut(&addr).map(|a| a.as_ref().map(|a| a.clone_basic()))
}
/// Get value from a cached account.
/// Returns 'None' if the state is non-canonical and cache is disabled
/// or if the account is not cached.
pub fn get_cached<F, U>(&self, a: &Address, f: F) -> Option<U>
where F: FnOnce(Option<&mut Account>) -> U {
if !self.is_canon {
return None;
}
let mut cache = self.account_cache.lock();
cache.accounts.get_mut(a).map(|c| f(c.as_mut()))
}
}

18
ethcore/src/tests/helpers.rs
View File

@ -19,6 +19,7 @@ use io::*;
use client::{BlockChainClient, Client, ClientConfig};
use common::*;
use spec::*;
use state_db::StateDB;
use block::{OpenBlock, Drain};
use blockchain::{BlockChain, Config as BlockChainConfig};
use state::*;
@ -146,9 +147,9 @@ pub fn generate_dummy_client_with_spec_and_data<F>(get_test_spec: F, block_numbe
).unwrap();
let test_engine = &*test_spec.engine;
let mut db_result = get_temp_journal_db();
let mut db_result = get_temp_state_db();
let mut db = db_result.take();
test_spec.ensure_db_good(db.as_hashdb_mut()).unwrap();
test_spec.ensure_db_good(&mut db).unwrap();
let genesis_header = test_spec.genesis_header();
let mut rolling_timestamp = 40;
@ -321,9 +322,9 @@ pub fn generate_dummy_empty_blockchain() -> GuardedTempResult<BlockChain> {
}
}
pub fn get_temp_journal_db() -> GuardedTempResult<Box<JournalDB>> {
pub fn get_temp_state_db() -> GuardedTempResult<StateDB> {
let temp = RandomTempPath::new();
let journal_db = get_temp_journal_db_in(temp.as_path());
let journal_db = get_temp_state_db_in(temp.as_path());
GuardedTempResult {
_temp: temp,
@ -333,7 +334,7 @@ pub fn get_temp_journal_db() -> GuardedTempResult<Box<JournalDB>> {
pub fn get_temp_state() -> GuardedTempResult<State> {
let temp = RandomTempPath::new();
let journal_db = get_temp_journal_db_in(temp.as_path());
let journal_db = get_temp_state_db_in(temp.as_path());
GuardedTempResult {
_temp: temp,
@ -341,13 +342,14 @@ pub fn get_temp_state() -> GuardedTempResult<State> {
}
}
pub fn get_temp_journal_db_in(path: &Path) -> Box<JournalDB> {
pub fn get_temp_state_db_in(path: &Path) -> StateDB {
let db = new_db(path.to_str().expect("Only valid utf8 paths for tests."));
journaldb::new(db.clone(), journaldb::Algorithm::EarlyMerge, None)
let journal_db = journaldb::new(db.clone(), journaldb::Algorithm::EarlyMerge, None);
StateDB::new(journal_db)
}
pub fn get_temp_state_in(path: &Path) -> State {
let journal_db = get_temp_journal_db_in(path);
let journal_db = get_temp_state_db_in(path);
State::new(journal_db, U256::from(0), Default::default())
}

4
logger/src/lib.rs
View File

@ -91,10 +91,10 @@ pub fn setup_log(config: &Config) -> Result<Arc<RotatingLogger>, String> {
let timestamp = time::strftime("%Y-%m-%d %H:%M:%S %Z", &time::now()).unwrap();
let with_color = if max_log_level() <= LogLevelFilter::Info {
format!("{}{}", Colour::Black.bold().paint(timestamp), record.args())
format!("{} {}", Colour::Black.bold().paint(timestamp), record.args())
} else {
let name = thread::current().name().map_or_else(Default::default, |x| format!("{}", Colour::Blue.bold().paint(x)));
format!("{}{} {} {} {}", Colour::Black.bold().paint(timestamp), name, record.level(), record.target(), record.args())
format!("{} {} {} {} {}", Colour::Black.bold().paint(timestamp), name, record.level(), record.target(), record.args())
};
let removed_color = kill_color(with_color.as_ref());