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merge with latest master

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This commit is contained in:
Robert Habermeier
2016-07-06 12:26:03 +02:00
parent a7103e2870 b7d243368b
commit aaad0e87ae
144 changed files with 3120 additions and 3290 deletions
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2
ethcore/src/account.rs
View File

@@ -127,7 +127,7 @@ impl Account {
SecTrieDBMut would not set it to an invalid state root. Therefore the root is valid and DB creation \
using it will not fail.");
(Filth::Clean, H256::from(db.get(key.bytes()).map_or(U256::zero(), |v| -> U256 {decode(v)})))
(Filth::Clean, H256::from(db.get(key).map_or(U256::zero(), |v| -> U256 {decode(v)})))
}).1.clone()
}

19
ethcore/src/blockchain/blockchain.rs
View File

@@ -30,7 +30,7 @@ use blockchain::best_block::BestBlock;
use types::tree_route::TreeRoute;
use blockchain::update::ExtrasUpdate;
use blockchain::{CacheSize, ImportRoute, Config};
use db::{Writable, Readable, CacheUpdatePolicy};
use db::{Writable, Readable, CacheUpdatePolicy, Key};
const LOG_BLOOMS_LEVELS: usize = 3;
const LOG_BLOOMS_ELEMENTS_PER_INDEX: usize = 16;
@@ -295,7 +295,22 @@ impl BlockChain {
// load best block
let best_block_hash = match bc.extras_db.get(b"best").unwrap() {
Some(best) => H256::from_slice(&best),
Some(best) => {
let best = H256::from_slice(&best);
let mut b = best.clone();
while !bc.blocks_db.get(&b).unwrap().is_some() {
// track back to the best block we have in the blocks database
let extras: BlockDetails = bc.extras_db.read(&b).unwrap();
type DetailsKey = Key<BlockDetails, Target=H264>;
bc.extras_db.delete(&(DetailsKey::key(&b))).unwrap();
b = extras.parent;
}
if b != best {
info!("Restored mismatched best block. Was: {}, new: {}", best.hex(), b.hex());
bc.extras_db.put(b"best", &b).unwrap();
}
b
}
None => {
// best block does not exist
// we need to insert genesis into the cache

116
ethcore/src/client/client.rs
View File

@@ -17,11 +17,12 @@
//! Blockchain database client.
use std::path::PathBuf;
use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
use std::time::Instant;
use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering as AtomicOrdering};
use util::*;
use util::panics::*;
use views::BlockView;
use error::{Error, ImportError, ExecutionError, BlockError, ImportResult};
use error::{ImportError, ExecutionError, BlockError, ImportResult};
use header::{BlockNumber};
use state::State;
use spec::Spec;
@@ -38,7 +39,9 @@ use filter::Filter;
use log_entry::LocalizedLogEntry;
use block_queue::{BlockQueue, BlockQueueInfo};
use blockchain::{BlockChain, BlockProvider, TreeRoute, ImportRoute};
use client::{BlockID, TransactionID, UncleID, TraceId, ClientConfig, DatabaseCompactionProfile, BlockChainClient, MiningBlockChainClient, TraceFilter, CallAnalytics};
use client::{BlockID, TransactionID, UncleID, TraceId, Mode, ClientConfig, DatabaseCompactionProfile,
BlockChainClient, MiningBlockChainClient, TraceFilter, CallAnalytics, TransactionImportError,
BlockImportError, TransactionImportResult};
use client::Error as ClientError;
use env_info::EnvInfo;
use executive::{Executive, Executed, TransactOptions, contract_address};
@@ -49,9 +52,10 @@ use trace;
pub use types::blockchain_info::BlockChainInfo;
pub use types::block_status::BlockStatus;
use evm::Factory as EvmFactory;
use miner::{Miner, MinerService, TransactionImportResult, AccountDetails};
use miner::{Miner, MinerService, AccountDetails};
const MAX_TX_QUEUE_SIZE: usize = 4096;
const MAX_QUEUE_SIZE_TO_SLEEP_ON: usize = 2;
impl fmt::Display for BlockChainInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -81,9 +85,24 @@ impl ClientReport {
}
}
struct SleepState {
last_activity: Option<Instant>,
last_autosleep: Option<Instant>,
}
impl SleepState {
fn new(awake: bool) -> Self {
SleepState {
last_activity: match awake { false => None, true => Some(Instant::now()) },
last_autosleep: match awake { false => Some(Instant::now()), true => None },
}
}
}
/// Blockchain database client backed by a persistent database. Owns and manages a blockchain and a block queue.
/// Call `import_block()` to import a block asynchronously; `flush_queue()` flushes the queue.
pub struct Client {
mode: Mode,
chain: Arc<BlockChain>,
tracedb: Arc<TraceDB<BlockChain>>,
engine: Arc<Box<Engine>>,
@@ -96,6 +115,8 @@ pub struct Client {
vm_factory: Arc<EvmFactory>,
trie_factory: TrieFactory,
miner: Arc<Miner>,
sleep_state: Mutex<SleepState>,
liveness: AtomicBool,
io_channel: IoChannel<NetSyncMessage>,
queue_transactions: AtomicUsize,
}
@@ -132,9 +153,8 @@ impl Client {
spec: Spec,
path: &Path,
miner: Arc<Miner>,
message_channel: IoChannel<NetSyncMessage>)
-> Result<Arc<Client>, ClientError>
{
message_channel: IoChannel<NetSyncMessage>
) -> Result<Arc<Client>, ClientError> {
let path = get_db_path(path, config.pruning, spec.genesis_header().hash());
let gb = spec.genesis_block();
let chain = Arc::new(BlockChain::new(config.blockchain, &gb, &path));
@@ -165,7 +185,11 @@ impl Client {
let panic_handler = PanicHandler::new_in_arc();
panic_handler.forward_from(&block_queue);
let awake = match config.mode { Mode::Dark(..) => false, _ => true };
let client = Client {
sleep_state: Mutex::new(SleepState::new(awake)),
liveness: AtomicBool::new(awake),
mode: config.mode,
chain: chain,
tracedb: tracedb,
engine: engine,
@@ -181,7 +205,6 @@ impl Client {
io_channel: message_channel,
queue_transactions: AtomicUsize::new(0),
};
Ok(Arc::new(client))
}
@@ -447,9 +470,41 @@ impl Client {
}
/// Tick the client.
// TODO: manage by real events.
pub fn tick(&self) {
self.chain.collect_garbage();
self.block_queue.collect_garbage();
match self.mode {
Mode::Dark(timeout) => {
let mut ss = self.sleep_state.lock().unwrap();
if let Some(t) = ss.last_activity {
if Instant::now() > t + timeout {
self.sleep();
ss.last_activity = None;
}
}
}
Mode::Passive(timeout, wakeup_after) => {
let mut ss = self.sleep_state.lock().unwrap();
let now = Instant::now();
if let Some(t) = ss.last_activity {
if now > t + timeout {
self.sleep();
ss.last_activity = None;
ss.last_autosleep = Some(now);
}
}
if let Some(t) = ss.last_autosleep {
if now > t + wakeup_after {
self.wake_up();
ss.last_activity = Some(now);
ss.last_autosleep = None;
}
}
}
_ => {}
}
}
/// Set up the cache behaviour.
@@ -485,6 +540,29 @@ impl Client {
})
}
}
fn wake_up(&self) {
if !self.liveness.load(AtomicOrdering::Relaxed) {
self.liveness.store(true, AtomicOrdering::Relaxed);
self.io_channel.send(NetworkIoMessage::User(SyncMessage::StartNetwork)).unwrap();
trace!(target: "mode", "wake_up: Waking.");
}
}
fn sleep(&self) {
if self.liveness.load(AtomicOrdering::Relaxed) {
// only sleep if the import queue is mostly empty.
if self.queue_info().total_queue_size() <= MAX_QUEUE_SIZE_TO_SLEEP_ON {
self.liveness.store(false, AtomicOrdering::Relaxed);
self.io_channel.send(NetworkIoMessage::User(SyncMessage::StopNetwork)).unwrap();
trace!(target: "mode", "sleep: Sleeping.");
} else {
trace!(target: "mode", "sleep: Cannot sleep - syncing ongoing.");
// TODO: Consider uncommenting.
//*self.last_activity.lock().unwrap() = Some(Instant::now());
}
}
}
}
impl BlockChainClient for Client {
@@ -526,6 +604,12 @@ impl BlockChainClient for Client {
ret
}
fn keep_alive(&self) {
if self.mode != Mode::Active {
self.wake_up();
(*self.sleep_state.lock().unwrap()).last_activity = Some(Instant::now());
}
}
fn block_header(&self, id: BlockID) -> Option<Bytes> {
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block(&hash).map(|bytes| BlockView::new(&bytes).rlp().at(0).as_raw().to_vec()))
@@ -654,17 +738,17 @@ impl BlockChainClient for Client {
self.chain.block_receipts(hash).map(|receipts| rlp::encode(&receipts).to_vec())
}
fn import_block(&self, bytes: Bytes) -> ImportResult {
fn import_block(&self, bytes: Bytes) -> Result<H256, BlockImportError> {
{
let header = BlockView::new(&bytes).header_view();
if self.chain.is_known(&header.sha3()) {
return Err(ImportError::AlreadyInChain.into());
return Err(BlockImportError::Import(ImportError::AlreadyInChain));
}
if self.block_status(BlockID::Hash(header.parent_hash())) == BlockStatus::Unknown {
return Err(BlockError::UnknownParent(header.parent_hash()).into());
return Err(BlockImportError::Block(BlockError::UnknownParent(header.parent_hash())));
}
}
self.block_queue.import_block(bytes)
Ok(try!(self.block_queue.import_block(bytes)))
}
fn queue_info(&self) -> BlockQueueInfo {
@@ -778,12 +862,16 @@ impl BlockChainClient for Client {
self.build_last_hashes(self.chain.best_block_hash())
}
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, Error>> {
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, TransactionImportError>> {
let fetch_account = |a: &Address| AccountDetails {
nonce: self.latest_nonce(a),
balance: self.latest_balance(a),
};
self.miner.import_transactions(self, transactions, fetch_account)
self.miner.import_transactions(self, transactions, &fetch_account)
.into_iter()
.map(|res| res.map_err(|e| e.into()))
.collect()
}
fn queue_transactions(&self, transactions: Vec<Bytes>) {

20
ethcore/src/client/config.rs
View File

@@ -14,6 +14,7 @@
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
pub use std::time::Duration;
pub use block_queue::BlockQueueConfig;
pub use blockchain::Config as BlockChainConfig;
pub use trace::{Config as TraceConfig, Switch};
@@ -35,6 +36,23 @@ impl Default for DatabaseCompactionProfile {
fn default() -> Self { DatabaseCompactionProfile::Default }
}
/// Operating mode for the client.
#[derive(Debug, Eq, PartialEq)]
pub enum Mode {
/// Always on.
Active,
/// Goes offline after RLP is inactive for some (given) time, but
/// comes back online after a while of inactivity.
Passive(Duration, Duration),
/// Goes offline after RLP is inactive for some (given) time and
/// stays inactive.
Dark(Duration),
}
impl Default for Mode {
fn default() -> Self { Mode::Active }
}
/// Client configuration. Includes configs for all sub-systems.
#[derive(Debug, Default)]
pub struct ClientConfig {
@@ -56,6 +74,8 @@ pub struct ClientConfig {
pub db_cache_size: Option<usize>,
/// State db compaction profile
pub db_compaction: DatabaseCompactionProfile,
/// Operating mode
pub mode: Mode,
/// Type of block verifier used by client.
pub verifier_type: VerifierType,
}

15
ethcore/src/client/mod.rs
View File

@@ -23,7 +23,7 @@ mod test_client;
mod trace;
pub use self::client::*;
pub use self::config::{ClientConfig, DatabaseCompactionProfile, BlockQueueConfig, BlockChainConfig, Switch, VMType};
pub use self::config::{Mode, ClientConfig, DatabaseCompactionProfile, BlockQueueConfig, BlockChainConfig, Switch, VMType};
pub use self::error::Error;
pub use types::ids::*;
pub use self::test_client::{TestBlockChainClient, EachBlockWith};
@@ -47,8 +47,8 @@ use error::{ImportResult, ExecutionError};
use receipt::LocalizedReceipt;
use trace::LocalizedTrace;
use evm::Factory as EvmFactory;
use miner::{TransactionImportResult};
use error::Error as EthError;
pub use block_import_error::BlockImportError;
pub use transaction_import::{TransactionImportResult, TransactionImportError};
/// Options concerning what analytics we run on the call.
#[derive(Eq, PartialEq, Default, Clone, Copy, Debug)]
@@ -63,6 +63,11 @@ pub struct CallAnalytics {
/// Blockchain database client. Owns and manages a blockchain and a block queue.
pub trait BlockChainClient : Sync + Send {
/// Should be called by any external-facing interface when actively using the client.
/// To minimise chatter, there's no need to call more than once every 30s.
fn keep_alive(&self) {}
/// Get raw block header data by block id.
fn block_header(&self, id: BlockID) -> Option<Bytes>;
@@ -145,7 +150,7 @@ pub trait BlockChainClient : Sync + Send {
fn block_receipts(&self, hash: &H256) -> Option<Bytes>;
/// Import a block into the blockchain.
fn import_block(&self, bytes: Bytes) -> ImportResult;
fn import_block(&self, bytes: Bytes) -> Result<H256, BlockImportError>;
/// Get block queue information.
fn queue_info(&self) -> BlockQueueInfo;
@@ -188,7 +193,7 @@ pub trait BlockChainClient : Sync + Send {
fn last_hashes(&self) -> LastHashes;
/// import transactions from network/other 3rd party
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, EthError>>;
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, TransactionImportError>>;
/// Queue transactions for importing.
fn queue_transactions(&self, transactions: Vec<Bytes>);

12
ethcore/src/client/test_client.rs
View File

@@ -20,7 +20,9 @@ use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrder};
use util::*;
use transaction::{Transaction, LocalizedTransaction, SignedTransaction, Action};
use blockchain::TreeRoute;
use client::{BlockChainClient, MiningBlockChainClient, BlockChainInfo, BlockStatus, BlockID, TransactionID, UncleID, TraceId, TraceFilter, LastHashes, CallAnalytics};
use client::{BlockChainClient, MiningBlockChainClient, BlockChainInfo, BlockStatus, BlockID,
TransactionID, UncleID, TraceId, TraceFilter, LastHashes, CallAnalytics,
TransactionImportError, BlockImportError};
use header::{Header as BlockHeader, BlockNumber};
use filter::Filter;
use log_entry::LocalizedLogEntry;
@@ -38,7 +40,6 @@ use error::{ExecutionError};
use trace::LocalizedTrace;
use miner::{TransactionImportResult, AccountDetails};
use error::Error as EthError;
/// Test client.
pub struct TestBlockChainClient {
@@ -402,7 +403,7 @@ impl BlockChainClient for TestBlockChainClient {
None
}
fn import_block(&self, b: Bytes) -> ImportResult {
fn import_block(&self, b: Bytes) -> Result<H256, BlockImportError> {
let header = Rlp::new(&b).val_at::<BlockHeader>(0);
let h = header.hash();
let number: usize = header.number as usize;
@@ -487,7 +488,7 @@ impl BlockChainClient for TestBlockChainClient {
unimplemented!();
}
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, EthError>> {
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, TransactionImportError>> {
let nonces = self.nonces.read().unwrap();
let balances = self.balances.read().unwrap();
let fetch_account = |a: &Address| AccountDetails {
@@ -496,6 +497,9 @@ impl BlockChainClient for TestBlockChainClient {
};
self.miner.import_transactions(self, transactions, &fetch_account)
.into_iter()
.map(|res| res.map_err(|e| e.into()))
.collect()
}
fn queue_transactions(&self, transactions: Vec<Bytes>) {

20
ethcore/src/error.rs
View File

@@ -20,10 +20,11 @@ use util::*;
use header::BlockNumber;
use basic_types::LogBloom;
use client::Error as ClientError;
pub use types::executed::ExecutionError;
use ipc::binary::{BinaryConvertError, BinaryConvertable};
use types::block_import_error::BlockImportError;
#[derive(Debug, PartialEq)]
#[derive(Debug, PartialEq, Clone)]
/// Errors concerning transaction processing.
pub enum TransactionError {
/// Transaction is already imported to the queue
@@ -312,6 +313,21 @@ impl From<TrieError> for Error {
}
}
impl From<BlockImportError> for Error {
fn from(err: BlockImportError) -> Error {
match err {
BlockImportError::Block(e) => Error::Block(e),
BlockImportError::Import(e) => Error::Import(e),
BlockImportError::Other(s) => Error::Util(UtilError::SimpleString(s)),
}
}
}
binary_fixed_size!(BlockError);
binary_fixed_size!(ImportError);
binary_fixed_size!(TransactionError);
// TODO: uncomment below once https://github.com/rust-lang/rust/issues/27336 sorted.
/*#![feature(concat_idents)]
macro_rules! assimilate {

126
ethcore/src/evm/benches/mod.rs Normal file
View File

@@ -0,0 +1,126 @@
// 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/>.
//! benchmarking for EVM
//! should be started with:
//! ```bash
//! multirust run nightly cargo bench
//! ```
extern crate test;
use self::test::{Bencher, black_box};
use common::*;
use evm::{self, Factory, VMType};
use evm::tests::FakeExt;
#[bench]
fn simple_loop_log0_usize(b: &mut Bencher) {
simple_loop_log0(U256::from(::std::usize::MAX), b)
}
#[bench]
fn simple_loop_log0_u256(b: &mut Bencher) {
simple_loop_log0(!U256::zero(), b)
}
fn simple_loop_log0(gas: U256, b: &mut Bencher) {
let mut vm = Factory::new(VMType::Interpreter).create(gas);
let mut ext = FakeExt::new();
let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
let code = black_box(
"62ffffff5b600190036000600fa0600357".from_hex().unwrap()
);
b.iter(|| {
let mut params = ActionParams::default();
params.address = address.clone();
params.gas = gas;
params.code = Some(code.clone());
result(vm.exec(params, &mut ext))
});
}
#[bench]
fn mem_gas_calculation_same_usize(b: &mut Bencher) {
mem_gas_calculation_same(U256::from(::std::usize::MAX), b)
}
#[bench]
fn mem_gas_calculation_same_u256(b: &mut Bencher) {
mem_gas_calculation_same(!U256::zero(), b)
}
fn mem_gas_calculation_same(gas: U256, b: &mut Bencher) {
let mut vm = Factory::new(VMType::Interpreter).create(gas);
let mut ext = FakeExt::new();
let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
b.iter(|| {
let code = black_box(
"6110006001556001546000555b610fff805560016000540380600055600c57".from_hex().unwrap()
);
let mut params = ActionParams::default();
params.address = address.clone();
params.gas = gas;
params.code = Some(code.clone());
result(vm.exec(params, &mut ext))
});
}
#[bench]
fn mem_gas_calculation_increasing_usize(b: &mut Bencher) {
mem_gas_calculation_increasing(U256::from(::std::usize::MAX), b)
}
#[bench]
fn mem_gas_calculation_increasing_u256(b: &mut Bencher) {
mem_gas_calculation_increasing(!U256::zero(), b)
}
fn mem_gas_calculation_increasing(gas: U256, b: &mut Bencher) {
let mut vm = Factory::new(VMType::Interpreter).create(gas);
let mut ext = FakeExt::new();
let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
b.iter(|| {
let code = black_box(
"6110006001556001546000555b610fff60005401805560016000540380600055600c57".from_hex().unwrap()
);
let mut params = ActionParams::default();
params.address = address.clone();
params.gas = gas;
params.code = Some(code.clone());
result(vm.exec(params, &mut ext))
});
}
fn result(r: evm::Result<evm::GasLeft>) -> U256 {
match r {
Ok(evm::GasLeft::Known(v)) => v,
Ok(evm::GasLeft::NeedsReturn(v, _)) => v,
_ => U256::zero(),
}
}

55
ethcore/src/evm/evm.rs
View File

@@ -95,6 +95,61 @@ impl<'a> Finalize for Result<GasLeft<'a>> {
}
}
pub trait CostType: ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Output=Self> + ops::Sub<Output=Self> + ops::Shr<usize, Output=Self> + ops::Shl<usize, Output=Self> + cmp::Ord + Sized + From<usize> + Copy {
fn as_u256(&self) -> U256;
fn from_u256(val: U256) -> Result<Self>;
fn as_usize(&self) -> usize;
fn overflow_add(self, other: Self) -> (Self, bool);
fn overflow_mul(self, other: Self) -> (Self, bool);
}
impl CostType for U256 {
fn as_u256(&self) -> U256 {
*self
}
fn from_u256(val: U256) -> Result<Self> {
Ok(val)
}
fn as_usize(&self) -> usize {
self.as_u64() as usize
}
fn overflow_add(self, other: Self) -> (Self, bool) {
Uint::overflowing_add(self, other)
}
fn overflow_mul(self, other: Self) -> (Self, bool) {
Uint::overflowing_mul(self, other)
}
}
impl CostType for usize {
fn as_u256(&self) -> U256 {
U256::from(*self)
}
fn from_u256(val: U256) -> Result<Self> {
if U256::from(val.low_u64()) != val {
return Err(Error::OutOfGas);
}
Ok(val.low_u64() as usize)
}
fn as_usize(&self) -> usize {
*self
}
fn overflow_add(self, other: Self) -> (Self, bool) {
self.overflowing_add(other)
}
fn overflow_mul(self, other: Self) -> (Self, bool) {
self.overflowing_mul(other)
}
}
/// Evm interface
pub trait Evm {
/// This function should be used to execute transaction.

25
ethcore/src/evm/factory.rs
View File

@@ -19,6 +19,7 @@
//! TODO: consider spliting it into two separate files.
use std::fmt;
use evm::Evm;
use util::{U256, Uint};
#[derive(Debug, Clone)]
/// Type of EVM to use.
@@ -85,24 +86,30 @@ pub struct Factory {
impl Factory {
/// Create fresh instance of VM
/// Might choose implementation depending on supplied gas.
#[cfg(feature = "jit")]
pub fn create(&self) -> Box<Evm> {
pub fn create(&self, gas: U256) -> Box<Evm> {
match self.evm {
VMType::Jit => {
Box::new(super::jit::JitEvm::default())
},
VMType::Interpreter => {
Box::new(super::interpreter::Interpreter::default())
VMType::Interpreter => if Self::can_fit_in_usize(gas) {
Box::new(super::interpreter::Interpreter::<usize>::default())
} else {
Box::new(super::interpreter::Interpreter::<U256>::default())
}
}
}
/// Create fresh instance of VM
/// Might choose implementation depending on supplied gas.
#[cfg(not(feature = "jit"))]
pub fn create(&self) -> Box<Evm> {
pub fn create(&self, gas: U256) -> Box<Evm> {
match self.evm {
VMType::Interpreter => {
Box::new(super::interpreter::Interpreter::default())
VMType::Interpreter => if Self::can_fit_in_usize(gas) {
Box::new(super::interpreter::Interpreter::<usize>::default())
} else {
Box::new(super::interpreter::Interpreter::<U256>::default())
}
}
}
@@ -113,6 +120,10 @@ impl Factory {
evm: evm
}
}
fn can_fit_in_usize(gas: U256) -> bool {
gas == U256::from(gas.low_u64() as usize)
}
}
impl Default for Factory {
@@ -135,7 +146,7 @@ impl Default for Factory {
#[test]
fn test_create_vm() {
let _vm = Factory::default().create();
let _vm = Factory::default().create(U256::zero());
}
/// Create tests by injecting different VM factories

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

@@ -79,7 +79,7 @@ fn test_get_log_topics() {
assert_eq!(get_log_topics(LOG4), 4);
}
#[derive(PartialEq)]
#[derive(PartialEq, Clone, Copy)]
pub enum GasPriceTier {
/// 0 Zero
Zero,

261
ethcore/src/evm/interpreter/gasometer.rs Normal file
View File

@@ -0,0 +1,261 @@
// 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 common::*;
use super::u256_to_address;
use evm::{self, CostType};
use evm::instructions::{self, Instruction, InstructionInfo};
use evm::interpreter::stack::Stack;
macro_rules! overflowing {
($x: expr) => {{
let (v, overflow) = $x;
if overflow { return Err(evm::Error::OutOfGas); }
v
}}
}
#[cfg_attr(feature="dev", allow(enum_variant_names))]
enum InstructionCost<Cost: CostType> {
Gas(Cost),
GasMem(Cost, Cost),
GasMemCopy(Cost, Cost, Cost)
}
pub struct Gasometer<Gas: CostType> {
pub current_gas: Gas,
}
impl<Gas: CostType> Gasometer<Gas> {
pub fn new(current_gas: Gas) -> Self {
Gasometer {
current_gas: current_gas,
}
}
pub fn verify_gas(&self, gas_cost: &Gas) -> evm::Result<()> {
match &self.current_gas < gas_cost {
true => Err(evm::Error::OutOfGas),
false => Ok(())
}
}
#[cfg_attr(feature="dev", allow(cyclomatic_complexity))]
pub fn get_gas_cost_mem(
&mut self,
ext: &evm::Ext,
instruction: Instruction,
info: &InstructionInfo,
stack: &Stack<U256>,
current_mem_size: usize,
) -> evm::Result<(Gas, usize)> {
let schedule = ext.schedule();
let tier = instructions::get_tier_idx(info.tier);
let default_gas = Gas::from(schedule.tier_step_gas[tier]);
let cost = match instruction {
instructions::SSTORE => {
let address = H256::from(stack.peek(0));
let newval = stack.peek(1);
let val = U256::from(ext.storage_at(&address).as_slice());
let gas = if U256::zero() == val && &U256::zero() != newval {
schedule.sstore_set_gas
} else {
// Refund for below case is added when actually executing sstore
// !self.is_zero(&val) && self.is_zero(newval)
schedule.sstore_reset_gas
};
InstructionCost::Gas(Gas::from(gas))
},
instructions::SLOAD => {
InstructionCost::Gas(Gas::from(schedule.sload_gas))
},
instructions::MSTORE | instructions::MLOAD => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 32)))
},
instructions::MSTORE8 => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 1)))
},
instructions::RETURN => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::SHA3 => {
let w = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(1))), 31));
let words = w >> 5;
let gas = Gas::from(schedule.sha3_gas) + (Gas::from(schedule.sha3_word_gas) * words);
InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::CALLDATACOPY | instructions::CODECOPY => {
InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(2))), try!(Gas::from_u256(*stack.peek(2))))
},
instructions::EXTCODECOPY => {
InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(1), stack.peek(3))), try!(Gas::from_u256(*stack.peek(3))))
},
instructions::JUMPDEST => {
InstructionCost::Gas(Gas::from(1))
},
instructions::LOG0...instructions::LOG4 => {
let no_of_topics = instructions::get_log_topics(instruction);
let log_gas = schedule.log_gas + schedule.log_topic_gas * no_of_topics;
let data_gas = overflowing!(try!(Gas::from_u256(*stack.peek(1))).overflow_mul(Gas::from(schedule.log_data_gas)));
let gas = overflowing!(data_gas.overflow_add(Gas::from(log_gas)));
InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::CALL | instructions::CALLCODE => {
let mut gas = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(0))), schedule.call_gas));
let mem = cmp::max(
try!(self.mem_needed(stack.peek(5), stack.peek(6))),
try!(self.mem_needed(stack.peek(3), stack.peek(4)))
);
let address = u256_to_address(stack.peek(1));
if instruction == instructions::CALL && !ext.exists(&address) {
gas = overflowing!(gas.overflow_add(Gas::from(schedule.call_new_account_gas)));
};
if stack.peek(2) > &U256::zero() {
gas = overflowing!(gas.overflow_add(Gas::from(schedule.call_value_transfer_gas)));
};
InstructionCost::GasMem(gas,mem)
},
instructions::DELEGATECALL => {
let gas = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(0))), schedule.call_gas));
let mem = cmp::max(
try!(self.mem_needed(stack.peek(4), stack.peek(5))),
try!(self.mem_needed(stack.peek(2), stack.peek(3)))
);
InstructionCost::GasMem(gas, mem)
},
instructions::CREATE => {
let gas = Gas::from(schedule.create_gas);
let mem = try!(self.mem_needed(stack.peek(1), stack.peek(2)));
InstructionCost::GasMem(gas, mem)
},
instructions::EXP => {
let expon = stack.peek(1);
let bytes = ((expon.bits() + 7) / 8) as usize;
let gas = Gas::from(schedule.exp_gas + schedule.exp_byte_gas * bytes);
InstructionCost::Gas(gas)
},
_ => InstructionCost::Gas(default_gas)
};
match cost {
InstructionCost::Gas(gas) => {
Ok((gas, 0))
},
InstructionCost::GasMem(gas, mem_size) => {
let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
let gas = overflowing!(gas.overflow_add(mem_gas));
Ok((gas, new_mem_size))
},
InstructionCost::GasMemCopy(gas, mem_size, copy) => {
let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
let copy = overflowing!(add_gas_usize(copy, 31));
let copy_gas = Gas::from(schedule.copy_gas) * (copy / Gas::from(32 as usize));
let gas = overflowing!(gas.overflow_add(copy_gas));
let gas = overflowing!(gas.overflow_add(mem_gas));
Ok((gas, new_mem_size))
}
}
}
fn is_zero(&self, val: &Gas) -> bool {
&Gas::from(0) == val
}
fn mem_needed_const(&self, mem: &U256, add: usize) -> evm::Result<Gas> {
Gas::from_u256(overflowing!(mem.overflowing_add(U256::from(add))))
}
fn mem_needed(&self, offset: &U256, size: &U256) -> evm::Result<Gas> {
if self.is_zero(&try!(Gas::from_u256(*size))) {
return Ok(Gas::from(0));
}
Gas::from_u256(overflowing!(offset.overflowing_add(*size)))
}
fn mem_gas_cost(&self, schedule: &evm::Schedule, current_mem_size: usize, mem_size: &Gas) -> evm::Result<(Gas, usize)> {
let gas_for_mem = |mem_size: Gas| {
let s = mem_size >> 5;
// s * memory_gas + s * s / quad_coeff_div
let a = overflowing!(s.overflow_mul(Gas::from(schedule.memory_gas)));
// We need to go to U512 to calculate s*s/quad_coeff_div
let b = U512::from(s.as_u256()) * U512::from(s.as_u256()) / U512::from(schedule.quad_coeff_div);
if b > U512::from(!U256::zero()) {
Err(evm::Error::OutOfGas)
} else {
Ok(overflowing!(a.overflow_add(try!(Gas::from_u256(U256::from(b))))))
}
};
let current_mem_size = Gas::from(current_mem_size);
let req_mem_size_rounded = (overflowing!(mem_size.overflow_add(Gas::from(31 as usize))) >> 5) << 5;
let mem_gas_cost = if req_mem_size_rounded > current_mem_size {
let new_mem_gas = try!(gas_for_mem(req_mem_size_rounded));
let current_mem_gas = try!(gas_for_mem(current_mem_size));
new_mem_gas - current_mem_gas
} else {
Gas::from(0)
};
Ok((mem_gas_cost, req_mem_size_rounded.as_usize()))
}
}
#[inline]
fn add_gas_usize<Gas: CostType>(value: Gas, num: usize) -> (Gas, bool) {
value.overflow_add(Gas::from(num))
}
#[test]
fn test_mem_gas_cost() {
// given
let gasometer = Gasometer::<U256>::new(U256::zero());
let schedule = evm::Schedule::default();
let current_mem_size = 5;
let mem_size = !U256::zero();
// when
let result = gasometer.mem_gas_cost(&schedule, current_mem_size, &mem_size);
// then
if let Ok(_) = result {
assert!(false, "Should fail with OutOfGas");
}
}
#[test]
fn test_calculate_mem_cost() {
// given
let gasometer = Gasometer::<usize>::new(0);
let schedule = evm::Schedule::default();
let current_mem_size = 0;
let mem_size = 5;
// when
let (mem_cost, mem_size) = gasometer.mem_gas_cost(&schedule, current_mem_size, &mem_size).unwrap();
// then
assert_eq!(mem_cost, 3);
assert_eq!(mem_size, 32);
}

150
ethcore/src/evm/interpreter/memory.rs Normal file
View File

@@ -0,0 +1,150 @@
// 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 util::{U256, Uint};
pub trait Memory {
/// Retrieve current size of the memory
fn size(&self) -> usize;
/// Resize (shrink or expand) the memory to specified size (fills 0)
fn resize(&mut self, new_size: usize);
/// Resize the memory only if its smaller
fn expand(&mut self, new_size: usize);
/// Write single byte to memory
fn write_byte(&mut self, offset: U256, value: U256);
/// Write a word to memory. Does not resize memory!
fn write(&mut self, offset: U256, value: U256);
/// Read a word from memory
fn read(&self, offset: U256) -> U256;
/// Write slice of bytes to memory. Does not resize memory!
fn write_slice(&mut self, offset: U256, &[u8]);
/// Retrieve part of the memory between offset and offset + size
fn read_slice(&self, offset: U256, size: U256) -> &[u8];
/// Retrieve writeable part of memory
fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut[u8];
fn dump(&self);
}
/// Checks whether offset and size is valid memory range
fn is_valid_range(off: usize, size: usize) -> bool {
// When size is zero we haven't actually expanded the memory
let overflow = off.overflowing_add(size).1;
size > 0 && !overflow
}
impl Memory for Vec<u8> {
fn dump(&self) {
println!("MemoryDump:");
for i in self.iter() {
println!("{:02x} ", i);
}
println!("");
}
fn size(&self) -> usize {
self.len()
}
fn read_slice(&self, init_off_u: U256, init_size_u: U256) -> &[u8] {
let off = init_off_u.low_u64() as usize;
let size = init_size_u.low_u64() as usize;
if !is_valid_range(off, size) {
&self[0..0]
} else {
&self[off..off+size]
}
}
fn read(&self, offset: U256) -> U256 {
let off = offset.low_u64() as usize;
U256::from(&self[off..off+32])
}
fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut [u8] {
let off = offset.low_u64() as usize;
let s = size.low_u64() as usize;
if !is_valid_range(off, s) {
&mut self[0..0]
} else {
&mut self[off..off+s]
}
}
fn write_slice(&mut self, offset: U256, slice: &[u8]) {
let off = offset.low_u64() as usize;
// TODO [todr] Optimize?
for pos in off..off+slice.len() {
self[pos] = slice[pos - off];
}
}
fn write(&mut self, offset: U256, value: U256) {
let off = offset.low_u64() as usize;
let mut val = value;
let end = off + 32;
for pos in 0..32 {
self[end - pos - 1] = val.low_u64() as u8;
val = val >> 8;
}
}
fn write_byte(&mut self, offset: U256, value: U256) {
let off = offset.low_u64() as usize;
let val = value.low_u64() as u64;
self[off] = val as u8;
}
fn resize(&mut self, new_size: usize) {
self.resize(new_size, 0);
}
fn expand(&mut self, size: usize) {
if size > self.len() {
Memory::resize(self, size)
}
}
}
#[test]
fn test_memory_read_and_write() {
// given
let mem: &mut Memory = &mut vec![];
mem.resize(0x80 + 32);
// when
mem.write(U256::from(0x80), U256::from(0xabcdef));
// then
assert_eq!(mem.read(U256::from(0x80)), U256::from(0xabcdef));
}
#[test]
fn test_memory_read_and_write_byte() {
// given
let mem: &mut Memory = &mut vec![];
mem.resize(32);
// when
mem.write_byte(U256::from(0x1d), U256::from(0xab));
mem.write_byte(U256::from(0x1e), U256::from(0xcd));
mem.write_byte(U256::from(0x1f), U256::from(0xef));
// then
assert_eq!(mem.read(U256::from(0x00)), U256::from(0xabcdef));
}

590
ethcore/src/evm/interpreter.rs → ethcore/src/evm/interpreter/mod.rs
View File

@@ -16,12 +16,6 @@
///! Rust VM implementation
use common::*;
use super::instructions as instructions;
use super::instructions::{Instruction, get_info};
use std::marker::Copy;
use evm::{self, MessageCallResult, ContractCreateResult, GasLeft};
#[cfg(not(feature = "evm-debug"))]
macro_rules! evm_debug {
($x: expr) => {}
@@ -34,6 +28,19 @@ macro_rules! evm_debug {
}
}
mod gasometer;
mod stack;
mod memory;
use self::gasometer::Gasometer;
use self::stack::{Stack, VecStack};
use self::memory::Memory;
use std::marker::PhantomData;
use common::*;
use super::instructions::{self, Instruction, InstructionInfo};
use evm::{self, MessageCallResult, ContractCreateResult, GasLeft, CostType};
#[cfg(feature = "evm-debug")]
fn color(instruction: Instruction, name: &'static str) -> String {
let c = instruction as usize % 6;
@@ -41,209 +48,9 @@ fn color(instruction: Instruction, name: &'static str) -> String {
format!("\x1B[1;{}m{}\x1B[0m", colors[c], name)
}
macro_rules! overflowing {
($x: expr) => {{
let (v, overflow) = $x;
if overflow { return Err(evm::Error::OutOfGas); }
v
}}
}
type CodePosition = usize;
type Gas = U256;
type ProgramCounter = usize;
/// Stack trait with VM-friendly API
trait Stack<T> {
/// Returns `Stack[len(Stack) - no_from_top]`
fn peek(&self, no_from_top: usize) -> &T;
/// Swaps Stack[len(Stack)] and Stack[len(Stack) - no_from_top]
fn swap_with_top(&mut self, no_from_top: usize);
/// Returns true if Stack has at least `no_of_elems` elements
fn has(&self, no_of_elems: usize) -> bool;
/// Get element from top and remove it from Stack. Panics if stack is empty.
fn pop_back(&mut self) -> T;
/// Get (up to `instructions::MAX_NO_OF_TOPICS`) elements from top and remove them from Stack. Panics if stack is empty.
fn pop_n(&mut self, no_of_elems: usize) -> &[T];
/// Add element on top of the Stack
fn push(&mut self, elem: T);
/// Get number of elements on Stack
fn size(&self) -> usize;
/// Returns all data on stack.
fn peek_top(&mut self, no_of_elems: usize) -> &[T];
}
struct VecStack<S> {
stack: Vec<S>,
logs: [S; instructions::MAX_NO_OF_TOPICS]
}
impl<S : Copy> VecStack<S> {
fn with_capacity(capacity: usize, zero: S) -> Self {
VecStack {
stack: Vec::with_capacity(capacity),
logs: [zero; instructions::MAX_NO_OF_TOPICS]
}
}
}
impl<S : fmt::Display> Stack<S> for VecStack<S> {
fn peek(&self, no_from_top: usize) -> &S {
&self.stack[self.stack.len() - no_from_top - 1]
}
fn swap_with_top(&mut self, no_from_top: usize) {
let len = self.stack.len();
self.stack.swap(len - no_from_top - 1, len - 1);
}
fn has(&self, no_of_elems: usize) -> bool {
self.stack.len() >= no_of_elems
}
fn pop_back(&mut self) -> S {
let val = self.stack.pop();
match val {
Some(x) => {
evm_debug!({
println!(" POP: {}", x)
});
x
},
None => panic!("Tried to pop from empty stack.")
}
}
fn pop_n(&mut self, no_of_elems: usize) -> &[S] {
assert!(no_of_elems <= instructions::MAX_NO_OF_TOPICS);
for i in 0..no_of_elems {
self.logs[i] = self.pop_back();
}
&self.logs[0..no_of_elems]
}
fn push(&mut self, elem: S) {
evm_debug!({
println!(" PUSH: {}", elem)
});
self.stack.push(elem);
}
fn size(&self) -> usize {
self.stack.len()
}
fn peek_top(&mut self, no_from_top: usize) -> &[S] {
assert!(self.stack.len() >= no_from_top, "peek_top asked for more items than exist.");
&self.stack[self.stack.len() - no_from_top .. self.stack.len()]
}
}
trait Memory {
/// Retrieve current size of the memory
fn size(&self) -> usize;
/// Resize (shrink or expand) the memory to specified size (fills 0)
fn resize(&mut self, new_size: usize);
/// Resize the memory only if its smaller
fn expand(&mut self, new_size: usize);
/// Write single byte to memory
fn write_byte(&mut self, offset: U256, value: U256);
/// Write a word to memory. Does not resize memory!
fn write(&mut self, offset: U256, value: U256);
/// Read a word from memory
fn read(&self, offset: U256) -> U256;
/// Write slice of bytes to memory. Does not resize memory!
fn write_slice(&mut self, offset: U256, &[u8]);
/// Retrieve part of the memory between offset and offset + size
fn read_slice(&self, offset: U256, size: U256) -> &[u8];
/// Retrieve writeable part of memory
fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut[u8];
fn dump(&self);
}
/// Checks whether offset and size is valid memory range
fn is_valid_range(off: usize, size: usize) -> bool {
// When size is zero we haven't actually expanded the memory
let overflow = off.overflowing_add(size).1;
size > 0 && !overflow
}
impl Memory for Vec<u8> {
fn dump(&self) {
println!("MemoryDump:");
for i in self.iter() {
println!("{:02x} ", i);
}
println!("");
}
fn size(&self) -> usize {
self.len()
}
fn read_slice(&self, init_off_u: U256, init_size_u: U256) -> &[u8] {
let off = init_off_u.low_u64() as usize;
let size = init_size_u.low_u64() as usize;
if !is_valid_range(off, size) {
&self[0..0]
} else {
&self[off..off+size]
}
}
fn read(&self, offset: U256) -> U256 {
let off = offset.low_u64() as usize;
U256::from(&self[off..off+32])
}
fn writeable_slice(&mut self, offset: U256, size: U256) -> &mut [u8] {
let off = offset.low_u64() as usize;
let s = size.low_u64() as usize;
if !is_valid_range(off, s) {
&mut self[0..0]
} else {
&mut self[off..off+s]
}
}
fn write_slice(&mut self, offset: U256, slice: &[u8]) {
let off = offset.low_u64() as usize;
// TODO [todr] Optimize?
for pos in off..off+slice.len() {
self[pos] = slice[pos - off];
}
}
fn write(&mut self, offset: U256, value: U256) {
let off = offset.low_u64() as usize;
let mut val = value;
let end = off + 32;
for pos in 0..32 {
self[end - pos - 1] = val.low_u64() as u8;
val = val >> 8;
}
}
fn write_byte(&mut self, offset: U256, value: U256) {
let off = offset.low_u64() as usize;
let val = value.low_u64() as u64;
self[off] = val as u8;
}
fn resize(&mut self, new_size: usize) {
self.resize(new_size, 0);
}
fn expand(&mut self, size: usize) {
if size > self.len() {
Memory::resize(self, size)
}
}
}
/// Abstraction over raw vector of Bytes. Easier state management of PC.
struct CodeReader<'a> {
position: ProgramCounter,
@@ -265,38 +72,33 @@ impl<'a> CodeReader<'a> {
}
}
#[cfg_attr(feature="dev", allow(enum_variant_names))]
enum InstructionCost {
Gas(U256),
GasMem(U256, U256),
GasMemCopy(U256, U256, U256)
}
enum InstructionResult {
enum InstructionResult<Gas> {
Ok,
UseAllGas,
GasLeft(U256),
UnusedGas(U256),
GasLeft(Gas),
UnusedGas(Gas),
JumpToPosition(U256),
// gas left, init_orf, init_size
StopExecutionNeedsReturn(U256, U256, U256),
StopExecutionNeedsReturn(Gas, U256, U256),
StopExecution,
}
/// Intepreter EVM implementation
#[derive(Default)]
pub struct Interpreter {
pub struct Interpreter<Cost: CostType> {
mem: Vec<u8>,
_type: PhantomData<Cost>,
}
impl evm::Evm for Interpreter {
impl<Cost: CostType> evm::Evm for Interpreter<Cost> {
fn exec(&mut self, params: ActionParams, ext: &mut evm::Ext) -> evm::Result<GasLeft> {
self.mem.clear();
let code = &params.code.as_ref().unwrap();
let valid_jump_destinations = self.find_jump_destinations(&code);
let mut current_gas = params.gas;
let mut gasometer = Gasometer::<Cost>::new(try!(Cost::from_u256(params.gas)));
let mut stack = VecStack::with_capacity(ext.schedule().stack_limit, U256::zero());
let mut reader = CodeReader {
position: 0,
@@ -305,26 +107,27 @@ impl evm::Evm for Interpreter {
while reader.position < code.len() {
let instruction = code[reader.position];
// Calculate gas cost
let (gas_cost, mem_size) = try!(self.get_gas_cost_mem(ext, instruction, &stack));
// TODO: make compile-time removable if too much of a performance hit.
let trace_executed = ext.trace_prepare_execute(reader.position, instruction, &gas_cost);
reader.position += 1;
try!(self.verify_gas(&current_gas, &gas_cost));
let info = instructions::get_info(instruction);
try!(self.verify_instruction(ext, instruction, &info, &stack));
// Calculate gas cost
let (gas_cost, mem_size) = try!(gasometer.get_gas_cost_mem(ext, instruction, &info, &stack, self.mem.size()));
// TODO: make compile-time removable if too much of a performance hit.
let trace_executed = ext.trace_prepare_execute(reader.position - 1, instruction, &gas_cost.as_u256());
try!(gasometer.verify_gas(&gas_cost));
self.mem.expand(mem_size);
current_gas = current_gas - gas_cost; //TODO: use operator -=
gasometer.current_gas = gasometer.current_gas - gas_cost;
evm_debug!({
println!("[0x{:x}][{}(0x{:x}) Gas: {:x}\n Gas Before: {:x}",
reader.position,
color(instruction, instructions::get_info(instruction).name),
color(instruction, info.name),
instruction,
gas_cost,
current_gas + gas_cost
gasometer.current_gas + gas_cost
);
});
@@ -335,50 +138,44 @@ impl evm::Evm for Interpreter {
// Execute instruction
let result = try!(self.exec_instruction(
current_gas, &params, ext, instruction, &mut reader, &mut stack
gasometer.current_gas, &params, ext, instruction, &mut reader, &mut stack
));
if trace_executed {
ext.trace_executed(current_gas, stack.peek_top(get_info(instruction).ret), mem_written.map(|(o, s)| (o, &(self.mem[o..(o + s)]))), store_written);
ext.trace_executed(gasometer.current_gas.as_u256(), stack.peek_top(info.ret), mem_written.map(|(o, s)| (o, &(self.mem[o..(o + s)]))), store_written);
}
// Advance
match result {
InstructionResult::Ok => {},
InstructionResult::UnusedGas(gas) => {
current_gas = current_gas + gas; //TODO: use operator +=
gasometer.current_gas = gasometer.current_gas + gas;
},
InstructionResult::UseAllGas => {
current_gas = U256::zero();
gasometer.current_gas = Cost::from(0);
},
InstructionResult::GasLeft(gas_left) => {
current_gas = gas_left;
gasometer.current_gas = gas_left;
},
InstructionResult::JumpToPosition(position) => {
let pos = try!(self.verify_jump(position, &valid_jump_destinations));
reader.position = pos;
},
InstructionResult::StopExecutionNeedsReturn(gas, off, size) => {
return Ok(GasLeft::NeedsReturn(gas, self.mem.read_slice(off, size)));
return Ok(GasLeft::NeedsReturn(gas.as_u256(), self.mem.read_slice(off, size)));
},
InstructionResult::StopExecution => break,
}
}
Ok(GasLeft::Known(current_gas))
Ok(GasLeft::Known(gasometer.current_gas.as_u256()))
}
}
impl Interpreter {
#[cfg_attr(feature="dev", allow(cyclomatic_complexity))]
fn get_gas_cost_mem(
&mut self,
ext: &evm::Ext,
instruction: Instruction,
stack: &Stack<U256>
) -> evm::Result<(U256, usize)> {
impl<Cost: CostType> Interpreter<Cost> {
fn verify_instruction(&self, ext: &evm::Ext, instruction: Instruction, info: &InstructionInfo, stack: &Stack<U256>) -> evm::Result<()> {
let schedule = ext.schedule();
let info = instructions::get_info(instruction);
if !schedule.have_delegate_call && instruction == instructions::DELEGATECALL {
return Err(evm::Error::BadInstruction {
@@ -391,119 +188,20 @@ impl Interpreter {
});
}
try!(self.verify_instructions_requirements(&info, schedule.stack_limit, stack));
let tier = instructions::get_tier_idx(info.tier);
let default_gas = U256::from(schedule.tier_step_gas[tier]);
let cost = match instruction {
instructions::SSTORE => {
let address = H256::from(stack.peek(0));
let newval = stack.peek(1);
let val = U256::from(ext.storage_at(&address).as_slice());
let gas = if self.is_zero(&val) && !self.is_zero(newval) {
schedule.sstore_set_gas
} else {
// Refund for below case is added when actually executing sstore
// !self.is_zero(&val) && self.is_zero(newval)
schedule.sstore_reset_gas
};
InstructionCost::Gas(U256::from(gas))
},
instructions::SLOAD => {
InstructionCost::Gas(U256::from(schedule.sload_gas))
},
instructions::MSTORE | instructions::MLOAD => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 32)))
},
instructions::MSTORE8 => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 1)))
},
instructions::RETURN => {
InstructionCost::GasMem(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::SHA3 => {
let w = overflowing!(add_u256_usize(stack.peek(1), 31));
let words = w >> 5;
let gas = U256::from(schedule.sha3_gas) + (U256::from(schedule.sha3_word_gas) * words);
InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::CALLDATACOPY | instructions::CODECOPY => {
InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(2))), stack.peek(2).clone())
},
instructions::EXTCODECOPY => {
InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(1), stack.peek(3))), stack.peek(3).clone())
},
instructions::JUMPDEST => {
InstructionCost::Gas(U256::one())
},
instructions::LOG0...instructions::LOG4 => {
let no_of_topics = instructions::get_log_topics(instruction);
let log_gas = schedule.log_gas + schedule.log_topic_gas * no_of_topics;
let data_gas = overflowing!(stack.peek(1).overflowing_mul(U256::from(schedule.log_data_gas)));
let gas = overflowing!(data_gas.overflowing_add(U256::from(log_gas)));
InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
},
instructions::CALL | instructions::CALLCODE => {
let mut gas = overflowing!(add_u256_usize(stack.peek(0), schedule.call_gas));
let mem = cmp::max(
try!(self.mem_needed(stack.peek(5), stack.peek(6))),
try!(self.mem_needed(stack.peek(3), stack.peek(4)))
);
let address = u256_to_address(stack.peek(1));
if instruction == instructions::CALL && !ext.exists(&address) {
gas = overflowing!(gas.overflowing_add(U256::from(schedule.call_new_account_gas)));
};
if stack.peek(2).clone() > U256::zero() {
gas = overflowing!(gas.overflowing_add(U256::from(schedule.call_value_transfer_gas)));
};
InstructionCost::GasMem(gas,mem)
},
instructions::DELEGATECALL => {
let gas = overflowing!(add_u256_usize(stack.peek(0), schedule.call_gas));
let mem = cmp::max(
try!(self.mem_needed(stack.peek(4), stack.peek(5))),
try!(self.mem_needed(stack.peek(2), stack.peek(3)))
);
InstructionCost::GasMem(gas, mem)
},
instructions::CREATE => {
let gas = U256::from(schedule.create_gas);
let mem = try!(self.mem_needed(stack.peek(1), stack.peek(2)));
InstructionCost::GasMem(gas, mem)
},
instructions::EXP => {
let expon = stack.peek(1);
let bytes = ((expon.bits() + 7) / 8) as usize;
let gas = U256::from(schedule.exp_gas + schedule.exp_byte_gas * bytes);
InstructionCost::Gas(gas)
},
_ => InstructionCost::Gas(default_gas)
};
match cost {
InstructionCost::Gas(gas) => {
Ok((gas, 0))
},
InstructionCost::GasMem(gas, mem_size) => {
let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, self.mem.size(), &mem_size));
let gas = overflowing!(gas.overflowing_add(mem_gas));
Ok((gas, new_mem_size))
},
InstructionCost::GasMemCopy(gas, mem_size, copy) => {
let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, self.mem.size(), &mem_size));
let copy = overflowing!(add_u256_usize(&copy, 31));
let copy_gas = U256::from(schedule.copy_gas) * (copy / U256::from(32));
let gas = overflowing!(gas.overflowing_add(copy_gas));
let gas = overflowing!(gas.overflowing_add(mem_gas));
Ok((gas, new_mem_size))
}
if !stack.has(info.args) {
Err(evm::Error::StackUnderflow {
instruction: info.name,
wanted: info.args,
on_stack: stack.size()
})
} else if stack.size() - info.args + info.ret > schedule.stack_limit {
Err(evm::Error::OutOfStack {
instruction: info.name,
wanted: info.ret - info.args,
limit: schedule.stack_limit
})
} else {
Ok(())
}
}
@@ -532,53 +230,16 @@ impl Interpreter {
}
}
fn mem_gas_cost(&self, schedule: &evm::Schedule, current_mem_size: usize, mem_size: &U256) -> evm::Result<(U256, usize)> {
let gas_for_mem = |mem_size: U256| {
let s = mem_size >> 5;
// s * memory_gas + s * s / quad_coeff_div
let a = overflowing!(s.overflowing_mul(U256::from(schedule.memory_gas)));
// We need to go to U512 to calculate s*s/quad_coeff_div
let b = U512::from(s) * U512::from(s) / U512::from(schedule.quad_coeff_div);
if b > U512::from(!U256::zero()) {
Err(evm::Error::OutOfGas)
} else {
Ok(overflowing!(a.overflowing_add(U256::from(b))))
}
};
let current_mem_size = U256::from(current_mem_size);
let req_mem_size_rounded = (overflowing!(mem_size.overflowing_add(U256::from(31))) >> 5) << 5;
let new_mem_gas = try!(gas_for_mem(U256::from(req_mem_size_rounded)));
let current_mem_gas = try!(gas_for_mem(current_mem_size));
Ok((if req_mem_size_rounded > current_mem_size {
new_mem_gas - current_mem_gas
} else {
U256::zero()
}, req_mem_size_rounded.low_u64() as usize))
}
fn mem_needed_const(&self, mem: &U256, add: usize) -> evm::Result<U256> {
Ok(overflowing!(mem.overflowing_add(U256::from(add))))
}
fn mem_needed(&self, offset: &U256, size: &U256) -> evm::Result<U256> {
if self.is_zero(size) {
return Ok(U256::zero());
}
Ok(overflowing!(offset.overflowing_add(size.clone())))
}
#[cfg_attr(feature="dev", allow(too_many_arguments))]
fn exec_instruction(
&mut self,
gas: Gas,
gas: Cost,
params: &ActionParams,
ext: &mut evm::Ext,
instruction: Instruction,
code: &mut CodeReader,
stack: &mut Stack<U256>
) -> evm::Result<InstructionResult> {
) -> evm::Result<InstructionResult<Cost>> {
match instruction {
instructions::JUMP => {
let jump = stack.pop_back();
@@ -611,11 +272,11 @@ impl Interpreter {
return Ok(InstructionResult::Ok);
}
let create_result = ext.create(&gas, &endowment, &contract_code);
let create_result = ext.create(&gas.as_u256(), &endowment, &contract_code);
return match create_result {
ContractCreateResult::Created(address, gas_left) => {
stack.push(address_to_u256(address));
Ok(InstructionResult::GasLeft(gas_left))
Ok(InstructionResult::GasLeft(Cost::from_u256(gas_left).expect("Gas left cannot be greater.")))
},
ContractCreateResult::Failed => {
stack.push(U256::zero());
@@ -626,7 +287,7 @@ impl Interpreter {
},
instructions::CALL | instructions::CALLCODE | instructions::DELEGATECALL => {
assert!(ext.schedule().call_value_transfer_gas > ext.schedule().call_stipend, "overflow possible");
let call_gas = stack.pop_back();
let call_gas = Cost::from_u256(stack.pop_back()).expect("Gas is already validated.");
let code_address = stack.pop_back();
let code_address = u256_to_address(&code_address);
@@ -642,9 +303,9 @@ impl Interpreter {
let out_size = stack.pop_back();
// Add stipend (only CALL|CALLCODE when value > 0)
let call_gas = call_gas + value.map_or_else(U256::zero, |val| match val > U256::zero() {
true => U256::from(ext.schedule().call_stipend),
false => U256::zero()
let call_gas = call_gas + value.map_or_else(|| Cost::from(0), |val| match val > U256::zero() {
true => Cost::from(ext.schedule().call_stipend),
false => Cost::from(0)
});
// Get sender & receive addresses, check if we have balance
@@ -672,13 +333,13 @@ impl Interpreter {
// and we don't want to copy
let input = unsafe { ::std::mem::transmute(self.mem.read_slice(in_off, in_size)) };
let output = self.mem.writeable_slice(out_off, out_size);
ext.call(&call_gas, sender_address, receive_address, value, input, &code_address, output)
ext.call(&call_gas.as_u256(), sender_address, receive_address, value, input, &code_address, output)
};
return match call_result {
MessageCallResult::Success(gas_left) => {
stack.push(U256::one());
Ok(InstructionResult::UnusedGas(gas_left))
Ok(InstructionResult::UnusedGas(Cost::from_u256(gas_left).expect("Gas left cannot be greater then current one")))
},
MessageCallResult::Failed => {
stack.push(U256::zero());
@@ -759,7 +420,7 @@ impl Interpreter {
stack.push(U256::from(code.position - 1));
},
instructions::GAS => {
stack.push(gas.clone());
stack.push(gas.as_u256());
},
instructions::ADDRESS => {
stack.push(address_to_u256(params.address.clone()));
@@ -876,36 +537,6 @@ impl Interpreter {
}
}
fn verify_instructions_requirements(
&self,
info: &instructions::InstructionInfo,
stack_limit: usize,
stack: &Stack<U256>
) -> evm::Result<()> {
if !stack.has(info.args) {
Err(evm::Error::StackUnderflow {
instruction: info.name,
wanted: info.args,
on_stack: stack.size()
})
} else if stack.size() - info.args + info.ret > stack_limit {
Err(evm::Error::OutOfStack {
instruction: info.name,
wanted: info.ret - info.args,
limit: stack_limit
})
} else {
Ok(())
}
}
fn verify_gas(&self, current_gas: &U256, gas_cost: &U256) -> evm::Result<()> {
match current_gas < gas_cost {
true => Err(evm::Error::OutOfGas),
false => Ok(())
}
}
fn verify_jump(&self, jump_u: U256, valid_jump_destinations: &HashSet<usize>) -> evm::Result<usize> {
let jump = jump_u.low_u64() as usize;
@@ -1163,11 +794,6 @@ fn set_sign(value: U256, sign: bool) -> U256 {
}
}
#[inline]
fn add_u256_usize(value: &U256, num: usize) -> (U256, bool) {
value.clone().overflowing_add(U256::from(num))
}
#[inline]
fn u256_to_address(value: &U256) -> Address {
Address::from(H256::from(value))
@@ -1179,82 +805,14 @@ fn address_to_u256(value: Address) -> U256 {
}
#[test]
fn test_mem_gas_cost() {
fn test_find_jump_destinations() {
// given
let interpreter = Interpreter::default();
let schedule = evm::Schedule::default();
let current_mem_size = 5;
let mem_size = !U256::zero();
let interpreter = Interpreter::<U256>::default();
let code = "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff5b01600055".from_hex().unwrap();
// when
let result = interpreter.mem_gas_cost(&schedule, current_mem_size, &mem_size);
let valid_jump_destinations = interpreter.find_jump_destinations(&code);
// then
if let Ok(_) = result {
assert!(false, "Should fail with OutOfGas");
}
}
#[cfg(test)]
mod tests {
use common::*;
use super::*;
use evm;
#[test]
fn test_find_jump_destinations() {
// given
let interpreter = Interpreter::default();
let code = "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff5b01600055".from_hex().unwrap();
// when
let valid_jump_destinations = interpreter.find_jump_destinations(&code);
// then
assert!(valid_jump_destinations.contains(&66));
}
#[test]
fn test_calculate_mem_cost() {
// given
let interpreter = Interpreter::default();
let schedule = evm::Schedule::default();
let current_mem_size = 0;
let mem_size = U256::from(5);
// when
let (mem_cost, mem_size) = interpreter.mem_gas_cost(&schedule, current_mem_size, &mem_size).unwrap();
// then
assert_eq!(mem_cost, U256::from(3));
assert_eq!(mem_size, 32);
}
#[test]
fn test_memory_read_and_write() {
// given
let mem: &mut super::Memory = &mut vec![];
mem.resize(0x80 + 32);
// when
mem.write(U256::from(0x80), U256::from(0xabcdef));
// then
assert_eq!(mem.read(U256::from(0x80)), U256::from(0xabcdef));
}
#[test]
fn test_memory_read_and_write_byte() {
// given
let mem: &mut super::Memory = &mut vec![];
mem.resize(32);
// when
mem.write_byte(U256::from(0x1d), U256::from(0xab));
mem.write_byte(U256::from(0x1e), U256::from(0xcd));
mem.write_byte(U256::from(0x1f), U256::from(0xef));
// then
assert_eq!(mem.read(U256::from(0x00)), U256::from(0xabcdef));
}
assert!(valid_jump_destinations.contains(&66));
}

106
ethcore/src/evm/interpreter/stack.rs Normal file
View File

@@ -0,0 +1,106 @@
// 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 std::fmt;
use evm::instructions;
/// Stack trait with VM-friendly API
pub trait Stack<T> {
/// Returns `Stack[len(Stack) - no_from_top]`
fn peek(&self, no_from_top: usize) -> &T;
/// Swaps Stack[len(Stack)] and Stack[len(Stack) - no_from_top]
fn swap_with_top(&mut self, no_from_top: usize);
/// Returns true if Stack has at least `no_of_elems` elements
fn has(&self, no_of_elems: usize) -> bool;
/// Get element from top and remove it from Stack. Panics if stack is empty.
fn pop_back(&mut self) -> T;
/// Get (up to `instructions::MAX_NO_OF_TOPICS`) elements from top and remove them from Stack. Panics if stack is empty.
fn pop_n(&mut self, no_of_elems: usize) -> &[T];
/// Add element on top of the Stack
fn push(&mut self, elem: T);
/// Get number of elements on Stack
fn size(&self) -> usize;
/// Returns all data on stack.
fn peek_top(&mut self, no_of_elems: usize) -> &[T];
}
pub struct VecStack<S> {
stack: Vec<S>,
logs: [S; instructions::MAX_NO_OF_TOPICS]
}
impl<S : Copy> VecStack<S> {
pub fn with_capacity(capacity: usize, zero: S) -> Self {
VecStack {
stack: Vec::with_capacity(capacity),
logs: [zero; instructions::MAX_NO_OF_TOPICS]
}
}
}
impl<S : fmt::Display> Stack<S> for VecStack<S> {
fn peek(&self, no_from_top: usize) -> &S {
&self.stack[self.stack.len() - no_from_top - 1]
}
fn swap_with_top(&mut self, no_from_top: usize) {
let len = self.stack.len();
self.stack.swap(len - no_from_top - 1, len - 1);
}
fn has(&self, no_of_elems: usize) -> bool {
self.stack.len() >= no_of_elems
}
fn pop_back(&mut self) -> S {
let val = self.stack.pop();
match val {
Some(x) => {
evm_debug!({
println!(" POP: {}", x)
});
x
},
None => panic!("Tried to pop from empty stack.")
}
}
fn pop_n(&mut self, no_of_elems: usize) -> &[S] {
assert!(no_of_elems <= instructions::MAX_NO_OF_TOPICS);
for i in 0..no_of_elems {
self.logs[i] = self.pop_back();
}
&self.logs[0..no_of_elems]
}
fn push(&mut self, elem: S) {
evm_debug!({
println!(" PUSH: {}", elem)
});
self.stack.push(elem);
}
fn size(&self) -> usize {
self.stack.len()
}
fn peek_top(&mut self, no_from_top: usize) -> &[S] {
assert!(self.stack.len() >= no_from_top, "peek_top asked for more items than exist.");
&self.stack[self.stack.len() - no_from_top .. self.stack.len()]
}
}

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

@@ -28,8 +28,10 @@ mod jit;
#[cfg(test)]
mod tests;
#[cfg(all(feature="benches", test))]
mod benches;
pub use self::evm::{Evm, Error, Finalize, GasLeft, Result};
pub use self::evm::{Evm, Error, Finalize, GasLeft, Result, CostType};
pub use self::ext::{Ext, ContractCreateResult, MessageCallResult};
pub use self::factory::{Factory, VMType};
pub use self::schedule::Schedule;

80
ethcore/src/evm/tests.rs
View File

@@ -18,18 +18,18 @@ use common::*;
use evm::{self, Ext, Schedule, Factory, GasLeft, VMType, ContractCreateResult, MessageCallResult};
use std::fmt::Debug;
struct FakeLogEntry {
pub struct FakeLogEntry {
topics: Vec<H256>,
data: Bytes
}
#[derive(PartialEq, Eq, Hash, Debug)]
enum FakeCallType {
pub enum FakeCallType {
Call, Create
}
#[derive(PartialEq, Eq, Hash, Debug)]
struct FakeCall {
pub struct FakeCall {
call_type: FakeCallType,
gas: U256,
sender_address: Option<Address>,
@@ -43,7 +43,7 @@ struct FakeCall {
///
/// Can't do recursive calls.
#[derive(Default)]
struct FakeExt {
pub struct FakeExt {
sstore_clears: usize,
depth: usize,
store: HashMap<H256, H256>,
@@ -67,7 +67,7 @@ fn test_finalize(res: Result<GasLeft, evm::Error>) -> Result<U256, evm::Error> {
}
impl FakeExt {
fn new() -> Self {
pub fn new() -> Self {
FakeExt::default()
}
}
@@ -181,7 +181,7 @@ fn test_stack_underflow() {
let mut ext = FakeExt::new();
let err = {
let mut vm : Box<evm::Evm> = Box::new(super::interpreter::Interpreter::default());
let mut vm : Box<evm::Evm> = Box::new(super::interpreter::Interpreter::<usize>::default());
test_finalize(vm.exec(params, &mut ext)).unwrap_err()
};
@@ -208,7 +208,7 @@ fn test_add(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -228,7 +228,7 @@ fn test_sha3(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -248,7 +248,7 @@ fn test_address(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -270,7 +270,7 @@ fn test_origin(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -292,7 +292,7 @@ fn test_sender(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -327,7 +327,7 @@ fn test_extcodecopy(factory: super::Factory) {
ext.codes.insert(sender, sender_code);
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -347,7 +347,7 @@ fn test_log_empty(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -379,7 +379,7 @@ fn test_log_sender(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -404,7 +404,7 @@ fn test_blockhash(factory: super::Factory) {
ext.blockhashes.insert(U256::zero(), blockhash.clone());
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -426,7 +426,7 @@ fn test_calldataload(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -447,7 +447,7 @@ fn test_author(factory: super::Factory) {
ext.info.author = author;
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -467,7 +467,7 @@ fn test_timestamp(factory: super::Factory) {
ext.info.timestamp = timestamp;
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -487,7 +487,7 @@ fn test_number(factory: super::Factory) {
ext.info.number = number;
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -507,7 +507,7 @@ fn test_difficulty(factory: super::Factory) {
ext.info.difficulty = difficulty;
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -527,7 +527,7 @@ fn test_gas_limit(factory: super::Factory) {
ext.info.gas_limit = gas_limit;
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -545,7 +545,7 @@ fn test_mul(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -563,7 +563,7 @@ fn test_sub(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -581,7 +581,7 @@ fn test_div(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -599,7 +599,7 @@ fn test_div_zero(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -617,7 +617,7 @@ fn test_mod(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -636,7 +636,7 @@ fn test_smod(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -655,7 +655,7 @@ fn test_sdiv(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -674,7 +674,7 @@ fn test_exp(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -694,7 +694,7 @@ fn test_comparison(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -715,7 +715,7 @@ fn test_signed_comparison(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -736,7 +736,7 @@ fn test_bitops(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -759,7 +759,7 @@ fn test_addmod_mulmod(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -780,7 +780,7 @@ fn test_byte(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -799,7 +799,7 @@ fn test_signextend(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -819,7 +819,7 @@ fn test_badinstruction_int() {
let mut ext = FakeExt::new();
let err = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap_err()
};
@@ -839,7 +839,7 @@ fn test_pop(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -859,7 +859,7 @@ fn test_extops(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -882,7 +882,7 @@ fn test_jumps(factory: super::Factory) {
let mut ext = FakeExt::new();
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};
@@ -911,7 +911,7 @@ fn test_calls(factory: super::Factory) {
};
let gas_left = {
let mut vm = factory.create();
let mut vm = factory.create(params.gas);
test_finalize(vm.exec(params, &mut ext)).unwrap()
};

4
ethcore/src/executive.rs
View File

@@ -211,7 +211,7 @@ impl<'a> Executive<'a> {
let vm_factory = self.vm_factory;
let mut ext = self.as_externalities(OriginInfo::from(&params), unconfirmed_substate, output_policy, tracer, vm_tracer);
trace!(target: "executive", "ext.schedule.have_delegate_call: {}", ext.schedule().have_delegate_call);
return vm_factory.create().exec(params, &mut ext).finalize(ext);
return vm_factory.create(params.gas).exec(params, &mut ext).finalize(ext);
}
// Start in new thread to reset stack
@@ -222,7 +222,7 @@ impl<'a> Executive<'a> {
let mut ext = self.as_externalities(OriginInfo::from(&params), unconfirmed_substate, output_policy, tracer, vm_tracer);
scope.spawn(move || {
vm_factory.create().exec(params, &mut ext).finalize(ext)
vm_factory.create(params.gas).exec(params, &mut ext).finalize(ext)
})
}).join()
}

10
ethcore/src/header.rs
View File

@@ -92,10 +92,10 @@ impl PartialEq for Header {
impl Default for Header {
fn default() -> Self {
Header {
parent_hash: ZERO_H256.clone(),
parent_hash: H256::default(),
timestamp: 0,
number: 0,
author: ZERO_ADDRESS.clone(),
author: Address::default(),
transactions_root: SHA3_NULL_RLP,
uncles_hash: SHA3_EMPTY_LIST_RLP,
@@ -104,10 +104,10 @@ impl Default for Header {
state_root: SHA3_NULL_RLP,
receipts_root: SHA3_NULL_RLP,
log_bloom: ZERO_LOGBLOOM.clone(),
gas_used: ZERO_U256,
gas_limit: ZERO_U256,
gas_used: U256::default(),
gas_limit: U256::default(),
difficulty: ZERO_U256,
difficulty: U256::default(),
seal: vec![],
hash: RefCell::new(None),
bare_hash: RefCell::new(None),

2
ethcore/src/json_tests/executive.rs
View File

@@ -208,7 +208,7 @@ fn do_json_test_for(vm_type: &VMType, json_data: &[u8]) -> Vec<String> {
&mut tracer,
&mut vm_tracer,
);
let mut evm = vm_factory.create();
let mut evm = vm_factory.create(params.gas);
let res = evm.exec(params, &mut ex);
// a return in finalize will not alter callcreates
let callcreates = ex.callcreates.clone();

1
ethcore/src/json_tests/mod.rs
View File

@@ -23,3 +23,4 @@ mod state;
mod chain;
mod homestead_state;
mod homestead_chain;
mod trie;

69
ethcore/src/json_tests/trie.rs Normal file
View File

@@ -0,0 +1,69 @@
// 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 ethjson;
use util::{H256, MemoryDB, TrieMut, TrieSpec, TrieFactory};
fn test_trie(json: &[u8], trie: TrieSpec) -> Vec<String> {
let tests = ethjson::trie::Test::load(json).unwrap();
let factory = TrieFactory::new(trie);
let mut result = vec![];
for (name, test) in tests.into_iter() {
let mut memdb = MemoryDB::new();
let mut root = H256::default();
let mut t = factory.create(&mut memdb, &mut root);
for (key, value) in test.input.data.into_iter() {
let key: Vec<u8> = key.into();
let value: Vec<u8> = value.map_or_else(Vec::new, Into::into);
t.insert(&key, &value);
}
if *t.root() != test.root.into() {
result.push(format!("Trie test '{:?}' failed.", name));
}
}
for i in &result {
println!("FAILED: {}", i);
}
result
}
mod generic {
use util::TrieSpec;
fn do_json_test(json: &[u8]) -> Vec<String> {
super::test_trie(json, TrieSpec::Generic)
}
declare_test!{TrieTests_trietest, "TrieTests/trietest"}
declare_test!{TrieTests_trieanyorder, "TrieTests/trieanyorder"}
}
mod secure {
use util::TrieSpec;
fn do_json_test(json: &[u8]) -> Vec<String> {
super::test_trie(json, TrieSpec::Secure)
}
declare_test!{TrieTests_hex_encoded_secure, "TrieTests/hex_encoded_securetrie_test"}
declare_test!{TrieTests_trietest_secure, "TrieTests/trietest_secureTrie"}
declare_test!{TrieTests_trieanyorder_secure, "TrieTests/trieanyorder_secureTrie"}
}

1
ethcore/src/lib.rs
View File

@@ -31,6 +31,7 @@
#![cfg_attr(feature="dev", allow(needless_borrow))]
#![cfg_attr(feature="dev", allow(assign_op_pattern))]
#![cfg_attr(feature="benches", feature(test))]
//! Ethcore library
//!

17
ethcore/src/miner/miner.rs
View File

@@ -19,6 +19,7 @@ use std::sync::atomic::AtomicBool;
use std::time::{Instant, Duration};
use util::*;
use util::using_queue::{UsingQueue, GetAction};
use util::Colour::White;
use account_provider::AccountProvider;
use views::{BlockView, HeaderView};
@@ -29,8 +30,10 @@ use transaction::SignedTransaction;
use receipt::{Receipt};
use spec::Spec;
use engine::Engine;
use miner::{MinerService, MinerStatus, TransactionQueue, AccountDetails, TransactionImportResult, TransactionOrigin};
use miner::{MinerService, MinerStatus, TransactionQueue, AccountDetails, TransactionOrigin};
use miner::work_notify::WorkPoster;
use client::TransactionImportResult;
/// Different possible definitions for pending transaction set.
#[derive(Debug)]
@@ -198,17 +201,23 @@ impl Miner {
let hash = tx.hash();
match open_block.push_transaction(tx, None) {
Err(Error::Execution(ExecutionError::BlockGasLimitReached { gas_limit, gas_used, .. })) => {
trace!(target: "miner", "Skipping adding transaction to block because of gas limit: {:?}", hash);
debug!(target: "miner", "Skipping adding transaction to block because of gas limit: {:?}", hash);
// Exit early if gas left is smaller then min_tx_gas
let min_tx_gas: U256 = 21000.into(); // TODO: figure this out properly.
if gas_limit - gas_used < min_tx_gas {
break;
}
},
Err(Error::Transaction(TransactionError::AlreadyImported)) => {} // already have transaction - ignore
// Invalid nonce error can happen only if previous transaction is skipped because of gas limit.
// If there is errornous state of transaction queue it will be fixed when next block is imported.
Err(Error::Execution(ExecutionError::InvalidNonce { .. })) => {
debug!(target: "miner", "Skipping adding transaction to block because of invalid nonce: {:?}", hash);
},
// already have transaction - ignore
Err(Error::Transaction(TransactionError::AlreadyImported)) => {},
Err(e) => {
invalid_transactions.insert(hash);
trace!(target: "miner",
debug!(target: "miner",
"Error adding transaction to block: number={}. transaction_hash={:?}, Error: {:?}",
block_number, hash, e);
},

3
ethcore/src/miner/mod.rs
View File

@@ -47,9 +47,10 @@ mod external;
mod transaction_queue;
mod work_notify;
pub use self::transaction_queue::{TransactionQueue, AccountDetails, TransactionImportResult, TransactionOrigin};
pub use self::transaction_queue::{TransactionQueue, AccountDetails, TransactionOrigin};
pub use self::miner::{Miner, MinerOptions, PendingSet};
pub use self::external::{ExternalMiner, ExternalMinerService};
pub use client::TransactionImportResult;
use std::collections::BTreeMap;
use util::{H256, U256, Address, Bytes};

31
ethcore/src/miner/transaction_queue.rs
View File

@@ -87,9 +87,10 @@ use std::cmp;
use std::collections::{HashMap, BTreeSet};
use util::numbers::{Uint, U256};
use util::hash::{Address, H256};
use util::table::*;
use util::table::Table;
use transaction::*;
use error::{Error, TransactionError};
use client::TransactionImportResult;
/// Transaction origin
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -309,15 +310,6 @@ pub struct TransactionQueueStatus {
pub future: usize,
}
#[derive(Debug, PartialEq)]
/// Represents the result of importing transaction.
pub enum TransactionImportResult {
/// Transaction was imported to current queue.
Current,
/// Transaction was imported to future queue.
Future
}
/// Details of account
pub struct AccountDetails {
/// Most recent account nonce
@@ -439,10 +431,10 @@ impl TransactionQueue {
pub fn add<T>(&mut self, tx: SignedTransaction, fetch_account: &T, origin: TransactionOrigin) -> Result<TransactionImportResult, Error>
where T: Fn(&Address) -> AccountDetails {
trace!(target: "miner", "Importing: {:?}", tx.hash());
trace!(target: "txqueue", "Importing: {:?}", tx.hash());
if tx.gas_price < self.minimal_gas_price && origin != TransactionOrigin::Local {
trace!(target: "miner",
trace!(target: "txqueue",
"Dropping transaction below minimal gas price threshold: {:?} (gp: {} < {})",
tx.hash(),
tx.gas_price,
@@ -458,7 +450,7 @@ impl TransactionQueue {
try!(tx.check_low_s());
if tx.gas > self.gas_limit || tx.gas > self.tx_gas_limit {
trace!(target: "miner",
trace!(target: "txqueue",
"Dropping transaction above gas limit: {:?} ({} > min({}, {}))",
tx.hash(),
tx.gas,
@@ -477,7 +469,7 @@ impl TransactionQueue {
let cost = vtx.transaction.value + vtx.transaction.gas_price * vtx.transaction.gas;
if client_account.balance < cost {
trace!(target: "miner",
trace!(target: "txqueue",
"Dropping transaction without sufficient balance: {:?} ({} < {})",
vtx.hash(),
client_account.balance,
@@ -565,7 +557,7 @@ impl TransactionQueue {
if k >= current_nonce {
self.future.insert(*sender, k, order.update_height(k, current_nonce));
} else {
trace!(target: "miner", "Removing old transaction: {:?} (nonce: {} < {})", order.hash, k, current_nonce);
trace!(target: "txqueue", "Removing old transaction: {:?} (nonce: {} < {})", order.hash, k, current_nonce);
// Remove the transaction completely
self.by_hash.remove(&order.hash).expect("All transactions in `future` are also in `by_hash`");
}
@@ -586,7 +578,7 @@ impl TransactionQueue {
if k >= current_nonce {
self.future.insert(*sender, k, order.update_height(k, current_nonce));
} else {
trace!(target: "miner", "Removing old transaction: {:?} (nonce: {} < {})", order.hash, k, current_nonce);
trace!(target: "txqueue", "Removing old transaction: {:?} (nonce: {} < {})", order.hash, k, current_nonce);
self.by_hash.remove(&order.hash).expect("All transactions in `future` are also in `by_hash`");
}
}
@@ -674,7 +666,7 @@ impl TransactionQueue {
if self.by_hash.get(&tx.hash()).is_some() {
// Transaction is already imported.
trace!(target: "miner", "Dropping already imported transaction: {:?}", tx.hash());
trace!(target: "txqueue", "Dropping already imported transaction: {:?}", tx.hash());
return Err(TransactionError::AlreadyImported);
}
@@ -691,7 +683,7 @@ impl TransactionQueue {
// nonce height would result in overflow.
if nonce < state_nonce {
// Droping transaction
trace!(target: "miner", "Dropping old transaction: {:?} (nonce: {} < {})", tx.hash(), nonce, next_nonce);
trace!(target: "txqueue", "Dropping old transaction: {:?} (nonce: {} < {})", tx.hash(), nonce, next_nonce);
return Err(TransactionError::Old);
} else if nonce > next_nonce {
// We have a gap - put to future.
@@ -727,7 +719,7 @@ impl TransactionQueue {
// Trigger error if the transaction we are importing was removed.
try!(check_if_removed(&address, &nonce, removed));
trace!(target: "miner", "status: {:?}", self.status());
trace!(target: "txqueue", "status: {:?}", self.status());
Ok(TransactionImportResult::Current)
}
@@ -812,6 +804,7 @@ mod test {
use error::{Error, TransactionError};
use super::*;
use super::{TransactionSet, TransactionOrder, VerifiedTransaction};
use client::TransactionImportResult;
fn unwrap_tx_err(err: Result<TransactionImportResult, Error>) -> TransactionError {
match err.unwrap_err() {

44
ethcore/src/types/block_import_error.rs Normal file
View File

@@ -0,0 +1,44 @@
// 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/>.
//! Block import error related types
use std::mem;
use ipc::binary::BinaryConvertError;
use std::collections::VecDeque;
use error::{ImportError, BlockError, Error};
use std::convert::From;
/// Error dedicated to import block function
#[derive(Binary, Debug)]
pub enum BlockImportError {
/// Import error
Import(ImportError),
/// Block error
Block(BlockError),
/// Other error
Other(String),
}
impl From<Error> for BlockImportError {
fn from(e: Error) -> Self {
match e {
Error::Block(block_error) => BlockImportError::Block(block_error),
Error::Import(import_error) => BlockImportError::Import(import_error),
_ => BlockImportError::Other(format!("other block import error: {:?}", e)),
}
}
}

2
ethcore/src/types/mod.rs.in
View File

@@ -25,3 +25,5 @@ pub mod executed;
pub mod block_status;
pub mod account_diff;
pub mod state_diff;
pub mod transaction_import;
pub mod block_import_error;

52
ethcore/src/types/transaction_import.rs Normal file
View File

@@ -0,0 +1,52 @@
// 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/>.
//! Transaction import result related types
use ipc::binary::{BinaryConvertError, BinaryConvertable};
use std::collections::VecDeque;
use error::{TransactionError, Error};
use std::mem;
use util::Populatable;
#[derive(Debug, Clone, PartialEq)]
/// Represents the result of importing transaction.
pub enum TransactionImportResult {
/// Transaction was imported to current queue.
Current,
/// Transaction was imported to future queue.
Future
}
binary_fixed_size!(TransactionImportResult);
/// Api-level error for transaction import
#[derive(Debug, Clone, Binary)]
pub enum TransactionImportError {
/// Transaction error
Transaction(TransactionError),
/// Other error
Other(String),
}
impl From<Error> for TransactionImportError {
fn from(e: Error) -> Self {
match e {
Error::Transaction(transaction_error) => TransactionImportError::Transaction(transaction_error),
_ => TransactionImportError::Other(format!("other block import error: {:?}", e)),
}
}
}