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This commit is contained in:
NikVolf 2016-06-29 20:25:05 +03:00
parent 3cca6c869e
commit dec083a5ed
10 changed files with 867 additions and 826 deletions
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1
Cargo.lock generated
View File

@ -267,6 +267,7 @@ dependencies = [
"rayon 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)", "rayon 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)", "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)", "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
"semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)", "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)", "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
] ]

1
ethcore/Cargo.toml
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@ -31,6 +31,7 @@ bloomchain = "0.1"
"ethcore-ipc" = { path = "../ipc/rpc" } "ethcore-ipc" = { path = "../ipc/rpc" }
rayon = "0.3.1" rayon = "0.3.1"
ethstore = { path = "../ethstore" } ethstore = { path = "../ethstore" }
semver = "0.2"
[features] [features]
jit = ["evmjit"] jit = ["evmjit"]

14
ethcore/build.rs
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@ -30,4 +30,18 @@ fn main() {
codegen::register(&mut registry); codegen::register(&mut registry);
registry.expand("", &src, &dst).unwrap(); registry.expand("", &src, &dst).unwrap();
} }
// client interface
{
let src = Path::new("src/client/client.rs.in");
let intermediate = Path::new(&out_dir).join("client.intermediate.rs.in");
let mut registry = syntex::Registry::new();
codegen::register(&mut registry);
registry.expand("", &src, &intermediate).unwrap();
let dst = Path::new(&out_dir).join("client.ipc.rs");
let mut registry = syntex::Registry::new();
codegen::register(&mut registry);
registry.expand("", &intermediate, &dst).unwrap();
}
} }

823
ethcore/src/client/client.rs
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@ -16,824 +16,5 @@
//! Blockchain database client. //! Blockchain database client.
use std::path::PathBuf; #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering}; include!(concat!(env!("OUT_DIR"), "/client.ipc.rs"));
use util::*;
use util::panics::*;
use views::BlockView;
use error::{Error, ImportError, ExecutionError, BlockError, ImportResult};
use header::{BlockNumber, Header};
use state::State;
use spec::Spec;
use engine::Engine;
use views::HeaderView;
use service::{NetSyncMessage, SyncMessage};
use env_info::LastHashes;
use verification;
use verification::{PreverifiedBlock, Verifier};
use block::*;
use transaction::{LocalizedTransaction, SignedTransaction, Action};
use blockchain::extras::TransactionAddress;
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::Error as ClientError;
use env_info::EnvInfo;
use executive::{Executive, Executed, TransactOptions, contract_address};
use receipt::LocalizedReceipt;
pub use blockchain::CacheSize as BlockChainCacheSize;
use trace::{TraceDB, ImportRequest as TraceImportRequest, LocalizedTrace, Database as TraceDatabase};
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};
const MAX_TX_QUEUE_SIZE: usize = 4096;
impl fmt::Display for BlockChainInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "#{}.{}", self.best_block_number, self.best_block_hash)
}
}
/// Report on the status of a client.
#[derive(Default, Clone, Debug, Eq, PartialEq)]
pub struct ClientReport {
/// How many blocks have been imported so far.
pub blocks_imported: usize,
/// How many transactions have been applied so far.
pub transactions_applied: usize,
/// How much gas has been processed so far.
pub gas_processed: U256,
/// Memory used by state DB
pub state_db_mem: usize,
}
impl ClientReport {
/// Alter internal reporting to reflect the additional `block` has been processed.
pub fn accrue_block(&mut self, block: &PreverifiedBlock) {
self.blocks_imported += 1;
self.transactions_applied += block.transactions.len();
self.gas_processed = self.gas_processed + block.header.gas_used;
}
}
/// 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 {
chain: Arc<BlockChain>,
tracedb: Arc<TraceDB<BlockChain>>,
engine: Arc<Box<Engine>>,
state_db: Mutex<Box<JournalDB>>,
block_queue: BlockQueue,
report: RwLock<ClientReport>,
import_lock: Mutex<()>,
panic_handler: Arc<PanicHandler>,
verifier: Box<Verifier>,
vm_factory: Arc<EvmFactory>,
miner: Arc<Miner>,
io_channel: IoChannel<NetSyncMessage>,
queue_transactions: AtomicUsize,
}
const HISTORY: u64 = 1200;
// DO NOT TOUCH THIS ANY MORE UNLESS YOU REALLY KNOW WHAT YOU'RE DOING.
// Altering it will force a blanket DB update for *all* JournalDB-derived
// databases.
// Instead, add/upgrade the version string of the individual JournalDB-derived database
// of which you actually want force an upgrade.
const CLIENT_DB_VER_STR: &'static str = "5.3";
/// Get the path for the databases given the root path and information on the databases.
pub fn get_db_path(path: &Path, pruning: journaldb::Algorithm, genesis_hash: H256) -> PathBuf {
let mut dir = path.to_path_buf();
dir.push(H64::from(genesis_hash).hex());
//TODO: sec/fat: pruned/full versioning
// version here is a bit useless now, since it's controlled only be the pruning algo.
dir.push(format!("v{}-sec-{}", CLIENT_DB_VER_STR, pruning));
dir
}
/// Append a path element to the given path and return the string.
pub fn append_path(path: &Path, item: &str) -> String {
let mut p = path.to_path_buf();
p.push(item);
p.to_str().unwrap().to_owned()
}
impl Client {
/// Create a new client with given spec and DB path and custom verifier.
pub fn new(
config: ClientConfig,
spec: Spec,
path: &Path,
miner: Arc<Miner>,
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));
let tracedb = Arc::new(try!(TraceDB::new(config.tracing, &path, chain.clone())));
let mut state_db_config = match config.db_cache_size {
None => DatabaseConfig::default(),
Some(cache_size) => DatabaseConfig::with_cache(cache_size),
};
if config.db_compaction == DatabaseCompactionProfile::HDD {
state_db_config = state_db_config.compaction(CompactionProfile::hdd());
}
let mut state_db = journaldb::new(
&append_path(&path, "state"),
config.pruning,
state_db_config
);
if state_db.is_empty() && spec.ensure_db_good(state_db.as_hashdb_mut()) {
state_db.commit(0, &spec.genesis_header().hash(), None).expect("Error commiting genesis state to state DB");
}
let engine = Arc::new(spec.engine);
let block_queue = BlockQueue::new(config.queue, engine.clone(), message_channel.clone());
let panic_handler = PanicHandler::new_in_arc();
panic_handler.forward_from(&block_queue);
let client = Client {
chain: chain,
tracedb: tracedb,
engine: engine,
state_db: Mutex::new(state_db),
block_queue: block_queue,
report: RwLock::new(Default::default()),
import_lock: Mutex::new(()),
panic_handler: panic_handler,
verifier: verification::new(config.verifier_type),
vm_factory: Arc::new(EvmFactory::new(config.vm_type)),
miner: miner,
io_channel: message_channel,
queue_transactions: AtomicUsize::new(0),
};
Ok(Arc::new(client))
}
/// Flush the block import queue.
pub fn flush_queue(&self) {
self.block_queue.flush();
}
fn build_last_hashes(&self, parent_hash: H256) -> LastHashes {
let mut last_hashes = LastHashes::new();
last_hashes.resize(256, H256::new());
last_hashes[0] = parent_hash;
for i in 0..255 {
match self.chain.block_details(&last_hashes[i]) {
Some(details) => {
last_hashes[i + 1] = details.parent.clone();
},
None => break,
}
}
last_hashes
}
fn check_and_close_block(&self, block: &PreverifiedBlock) -> Result<LockedBlock, ()> {
let engine = self.engine.deref().deref();
let header = &block.header;
// Check the block isn't so old we won't be able to enact it.
let best_block_number = self.chain.best_block_number();
if best_block_number >= HISTORY && header.number() <= best_block_number - HISTORY {
warn!(target: "client", "Block import failed for #{} ({})\nBlock is ancient (current best block: #{}).", header.number(), header.hash(), best_block_number);
return Err(());
}
// Verify Block Family
let verify_family_result = self.verifier.verify_block_family(&header, &block.bytes, engine, self.chain.deref());
if let Err(e) = verify_family_result {
warn!(target: "client", "Stage 3 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
};
// Check if Parent is in chain
let chain_has_parent = self.chain.block_header(&header.parent_hash);
if let None = chain_has_parent {
warn!(target: "client", "Block import failed for #{} ({}): Parent not found ({}) ", header.number(), header.hash(), header.parent_hash);
return Err(());
};
// 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.lock().unwrap().boxed_clone();
let enact_result = enact_verified(&block, engine, self.tracedb.tracing_enabled(), db, &parent, last_hashes, self.dao_rescue_block_gas_limit(header.parent_hash.clone()), &self.vm_factory);
if let Err(e) = enact_result {
warn!(target: "client", "Block import failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
};
// Final Verification
let locked_block = enact_result.unwrap();
if let Err(e) = self.verifier.verify_block_final(&header, locked_block.block().header()) {
warn!(target: "client", "Stage 4 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
}
Ok(locked_block)
}
fn calculate_enacted_retracted(&self, import_results: Vec<ImportRoute>) -> (Vec<H256>, Vec<H256>) {
fn map_to_vec(map: Vec<(H256, bool)>) -> Vec<H256> {
map.into_iter().map(|(k, _v)| k).collect()
}
// In ImportRoute we get all the blocks that have been enacted and retracted by single insert.
// Because we are doing multiple inserts some of the blocks that were enacted in import `k`
// could be retracted in import `k+1`. This is why to understand if after all inserts
// the block is enacted or retracted we iterate over all routes and at the end final state
// will be in the hashmap
let map = import_results.into_iter().fold(HashMap::new(), |mut map, route| {
for hash in route.enacted {
map.insert(hash, true);
}
for hash in route.retracted {
map.insert(hash, false);
}
map
});
// Split to enacted retracted (using hashmap value)
let (enacted, retracted) = map.into_iter().partition(|&(_k, v)| v);
// And convert tuples to keys
(map_to_vec(enacted), map_to_vec(retracted))
}
/// This is triggered by a message coming from a block queue when the block is ready for insertion
pub fn import_verified_blocks(&self, io: &IoChannel<NetSyncMessage>) -> usize {
let max_blocks_to_import = 64;
let mut imported_blocks = Vec::with_capacity(max_blocks_to_import);
let mut invalid_blocks = HashSet::new();
let mut import_results = Vec::with_capacity(max_blocks_to_import);
let _import_lock = self.import_lock.lock();
let _timer = PerfTimer::new("import_verified_blocks");
let blocks = self.block_queue.drain(max_blocks_to_import);
let original_best = self.chain_info().best_block_hash;
for block in blocks {
let header = &block.header;
if invalid_blocks.contains(&header.parent_hash) {
invalid_blocks.insert(header.hash());
continue;
}
let closed_block = self.check_and_close_block(&block);
if let Err(_) = closed_block {
invalid_blocks.insert(header.hash());
continue;
}
imported_blocks.push(header.hash());
// Are we committing an era?
let ancient = if header.number() >= HISTORY {
let n = header.number() - HISTORY;
Some((n, self.chain.block_hash(n).unwrap()))
} else {
None
};
// Commit results
let closed_block = closed_block.unwrap();
let receipts = closed_block.block().receipts().clone();
let traces = From::from(closed_block.block().traces().clone().unwrap_or_else(Vec::new));
closed_block.drain()
.commit(header.number(), &header.hash(), ancient)
.expect("State DB commit failed.");
// And update the chain after commit to prevent race conditions
// (when something is in chain but you are not able to fetch details)
let route = self.chain.insert_block(&block.bytes, receipts);
self.tracedb.import(TraceImportRequest {
traces: traces,
block_hash: header.hash(),
block_number: header.number(),
enacted: route.enacted.clone(),
retracted: route.retracted.len()
});
import_results.push(route);
self.report.write().unwrap().accrue_block(&block);
trace!(target: "client", "Imported #{} ({})", header.number(), header.hash());
}
let imported = imported_blocks.len();
let invalid_blocks = invalid_blocks.into_iter().collect::<Vec<H256>>();
{
if !invalid_blocks.is_empty() {
self.block_queue.mark_as_bad(&invalid_blocks);
}
if !imported_blocks.is_empty() {
self.block_queue.mark_as_good(&imported_blocks);
}
}
{
if !imported_blocks.is_empty() && self.block_queue.queue_info().is_empty() {
let (enacted, retracted) = self.calculate_enacted_retracted(import_results);
if self.queue_info().is_empty() {
self.miner.chain_new_blocks(self, &imported_blocks, &invalid_blocks, &enacted, &retracted);
}
io.send(NetworkIoMessage::User(SyncMessage::NewChainBlocks {
imported: imported_blocks,
invalid: invalid_blocks,
enacted: enacted,
retracted: retracted,
})).unwrap_or_else(|e| warn!("Error sending IO notification: {:?}", e));
}
}
{
if self.chain_info().best_block_hash != original_best {
self.miner.update_sealing(self);
}
}
imported
}
/// Import transactions from the IO queue
pub fn import_queued_transactions(&self, transactions: &[Bytes]) -> usize {
let _timer = PerfTimer::new("import_queued_transactions");
self.queue_transactions.fetch_sub(transactions.len(), AtomicOrdering::SeqCst);
let fetch_account = |a: &Address| AccountDetails {
nonce: self.latest_nonce(a),
balance: self.latest_balance(a),
};
let tx = transactions.iter().filter_map(|bytes| UntrustedRlp::new(&bytes).as_val().ok()).collect();
let results = self.miner.import_transactions(self, tx, fetch_account);
results.len()
}
/// Attempt to get a copy of a specific block's state.
///
/// This will not fail if given BlockID::Latest.
/// Otherwise, this can fail (but may not) if the DB prunes state.
pub fn state_at(&self, id: BlockID) -> Option<State> {
// fast path for latest state.
if let BlockID::Latest = id.clone() {
return Some(self.state())
}
let block_number = match self.block_number(id.clone()) {
Some(num) => num,
None => return None,
};
self.block_header(id).and_then(|header| {
let db = self.state_db.lock().unwrap().boxed_clone();
// early exit for pruned blocks
if db.is_pruned() && self.chain.best_block_number() >= block_number + HISTORY {
return None;
}
let root = HeaderView::new(&header).state_root();
State::from_existing(db, root, self.engine.account_start_nonce()).ok()
})
}
/// Get a copy of the best block's state.
pub fn state(&self) -> State {
State::from_existing(self.state_db.lock().unwrap().boxed_clone(), HeaderView::new(&self.best_block_header()).state_root(), self.engine.account_start_nonce())
.expect("State root of best block header always valid.")
}
/// Get info on the cache.
pub fn blockchain_cache_info(&self) -> BlockChainCacheSize {
self.chain.cache_size()
}
/// Get the report.
pub fn report(&self) -> ClientReport {
let mut report = self.report.read().unwrap().clone();
report.state_db_mem = self.state_db.lock().unwrap().mem_used();
report
}
/// Tick the client.
pub fn tick(&self) {
self.chain.collect_garbage();
self.block_queue.collect_garbage();
}
/// Set up the cache behaviour.
pub fn configure_cache(&self, pref_cache_size: usize, max_cache_size: usize) {
self.chain.configure_cache(pref_cache_size, max_cache_size);
}
/// Look up the block number for the given block ID.
pub fn block_number(&self, id: BlockID) -> Option<BlockNumber> {
match id {
BlockID::Number(number) => Some(number),
BlockID::Hash(ref hash) => self.chain.block_number(hash),
BlockID::Earliest => Some(0),
BlockID::Latest => Some(self.chain.best_block_number())
}
}
fn block_hash(chain: &BlockChain, id: BlockID) -> Option<H256> {
match id {
BlockID::Hash(hash) => Some(hash),
BlockID::Number(number) => chain.block_hash(number),
BlockID::Earliest => chain.block_hash(0),
BlockID::Latest => Some(chain.best_block_hash())
}
}
fn transaction_address(&self, id: TransactionID) -> Option<TransactionAddress> {
match id {
TransactionID::Hash(ref hash) => self.chain.transaction_address(hash),
TransactionID::Location(id, index) => Self::block_hash(&self.chain, id).map(|hash| TransactionAddress {
block_hash: hash,
index: index,
})
}
}
}
impl BlockChainClient for Client {
fn call(&self, t: &SignedTransaction, analytics: CallAnalytics) -> Result<Executed, ExecutionError> {
let header = self.block_header(BlockID::Latest).unwrap();
let view = HeaderView::new(&header);
let last_hashes = self.build_last_hashes(view.hash());
let env_info = EnvInfo {
number: view.number(),
author: view.author(),
timestamp: view.timestamp(),
difficulty: view.difficulty(),
last_hashes: last_hashes,
gas_used: U256::zero(),
gas_limit: U256::max_value(),
dao_rescue_block_gas_limit: self.dao_rescue_block_gas_limit(view.parent_hash()),
};
// that's just a copy of the state.
let mut state = self.state();
let sender = try!(t.sender().map_err(|e| {
let message = format!("Transaction malformed: {:?}", e);
ExecutionError::TransactionMalformed(message)
}));
let balance = state.balance(&sender);
let needed_balance = t.value + t.gas * t.gas_price;
if balance < needed_balance {
// give the sender a sufficient balance
state.add_balance(&sender, &(needed_balance - balance));
}
let options = TransactOptions { tracing: analytics.transaction_tracing, vm_tracing: analytics.vm_tracing, check_nonce: false };
let mut ret = Executive::new(&mut state, &env_info, self.engine.deref().deref(), &self.vm_factory).transact(t, options);
// TODO gav move this into Executive.
if analytics.state_diffing {
if let Ok(ref mut x) = ret {
x.state_diff = Some(state.diff_from(self.state()));
}
}
ret
}
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()))
}
fn block_body(&self, id: BlockID) -> Option<Bytes> {
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash).map(|bytes| {
let rlp = Rlp::new(&bytes);
let mut body = RlpStream::new_list(2);
body.append_raw(rlp.at(1).as_raw(), 1);
body.append_raw(rlp.at(2).as_raw(), 1);
body.out()
})
})
}
fn block(&self, id: BlockID) -> Option<Bytes> {
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash)
})
}
fn block_status(&self, id: BlockID) -> BlockStatus {
match Self::block_hash(&self.chain, id) {
Some(ref hash) if self.chain.is_known(hash) => BlockStatus::InChain,
Some(hash) => self.block_queue.block_status(&hash),
None => BlockStatus::Unknown
}
}
fn block_total_difficulty(&self, id: BlockID) -> Option<U256> {
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block_details(&hash)).map(|d| d.total_difficulty)
}
fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.nonce(address))
}
fn block_hash(&self, id: BlockID) -> Option<H256> {
Self::block_hash(&self.chain, id)
}
fn code(&self, address: &Address) -> Option<Bytes> {
self.state().code(address)
}
fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.balance(address))
}
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
self.state_at(id).map(|s| s.storage_at(address, position))
}
fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction> {
self.transaction_address(id).and_then(|address| self.chain.transaction(&address))
}
fn uncle(&self, id: UncleID) -> Option<Header> {
let index = id.1;
self.block(id.0).and_then(|block| BlockView::new(&block).uncle_at(index))
}
fn transaction_receipt(&self, id: TransactionID) -> Option<LocalizedReceipt> {
self.transaction_address(id).and_then(|address| {
let t = self.chain.block(&address.block_hash)
.and_then(|block| BlockView::new(&block).localized_transaction_at(address.index));
match (t, self.chain.transaction_receipt(&address)) {
(Some(tx), Some(receipt)) => {
let block_hash = tx.block_hash.clone();
let block_number = tx.block_number.clone();
let transaction_hash = tx.hash();
let transaction_index = tx.transaction_index;
let prior_gas_used = match tx.transaction_index {
0 => U256::zero(),
i => {
let prior_address = TransactionAddress { block_hash: address.block_hash, index: i - 1 };
let prior_receipt = self.chain.transaction_receipt(&prior_address).expect("Transaction receipt at `address` exists; `prior_address` has lower index in same block; qed");
prior_receipt.gas_used
}
};
Some(LocalizedReceipt {
transaction_hash: tx.hash(),
transaction_index: tx.transaction_index,
block_hash: tx.block_hash,
block_number: tx.block_number,
cumulative_gas_used: receipt.gas_used,
gas_used: receipt.gas_used - prior_gas_used,
contract_address: match tx.action {
Action::Call(_) => None,
Action::Create => Some(contract_address(&tx.sender().unwrap(), &tx.nonce))
},
logs: receipt.logs.into_iter().enumerate().map(|(i, log)| LocalizedLogEntry {
entry: log,
block_hash: block_hash.clone(),
block_number: block_number,
transaction_hash: transaction_hash.clone(),
transaction_index: transaction_index,
log_index: i
}).collect()
})
},
_ => None
}
})
}
fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute> {
match self.chain.is_known(from) && self.chain.is_known(to) {
true => Some(self.chain.tree_route(from.clone(), to.clone())),
false => None
}
}
fn find_uncles(&self, hash: &H256) -> Option<Vec<H256>> {
self.chain.find_uncle_hashes(hash, self.engine.maximum_uncle_age())
}
fn state_data(&self, hash: &H256) -> Option<Bytes> {
self.state_db.lock().unwrap().state(hash)
}
fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
self.chain.block_receipts(hash).map(|receipts| rlp::encode(&receipts).to_vec())
}
fn import_block(&self, bytes: Bytes) -> ImportResult {
{
let header = BlockView::new(&bytes).header_view();
if self.chain.is_known(&header.sha3()) {
return Err(ImportError::AlreadyInChain.into());
}
if self.block_status(BlockID::Hash(header.parent_hash())) == BlockStatus::Unknown {
return Err(BlockError::UnknownParent(header.parent_hash()).into());
}
}
self.block_queue.import_block(bytes)
}
fn queue_info(&self) -> BlockQueueInfo {
self.block_queue.queue_info()
}
fn clear_queue(&self) {
self.block_queue.clear();
}
fn chain_info(&self) -> BlockChainInfo {
BlockChainInfo {
total_difficulty: self.chain.best_block_total_difficulty(),
pending_total_difficulty: self.chain.best_block_total_difficulty(),
genesis_hash: self.chain.genesis_hash(),
best_block_hash: self.chain.best_block_hash(),
best_block_number: From::from(self.chain.best_block_number())
}
}
fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockID, to_block: BlockID) -> Option<Vec<BlockNumber>> {
match (self.block_number(from_block), self.block_number(to_block)) {
(Some(from), Some(to)) => Some(self.chain.blocks_with_bloom(bloom, from, to)),
_ => None
}
}
fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry> {
// TODO: lock blockchain only once
let mut blocks = filter.bloom_possibilities().iter()
.filter_map(|bloom| self.blocks_with_bloom(bloom, filter.from_block.clone(), filter.to_block.clone()))
.flat_map(|m| m)
// remove duplicate elements
.collect::<HashSet<u64>>()
.into_iter()
.collect::<Vec<u64>>();
blocks.sort();
blocks.into_iter()
.filter_map(|number| self.chain.block_hash(number).map(|hash| (number, hash)))
.filter_map(|(number, hash)| self.chain.block_receipts(&hash).map(|r| (number, hash, r.receipts)))
.filter_map(|(number, hash, receipts)| self.chain.block(&hash).map(|ref b| (number, hash, receipts, BlockView::new(b).transaction_hashes())))
.flat_map(|(number, hash, receipts, hashes)| {
let mut log_index = 0;
receipts.into_iter()
.enumerate()
.flat_map(|(index, receipt)| {
log_index += receipt.logs.len();
receipt.logs.into_iter()
.enumerate()
.filter(|tuple| filter.matches(&tuple.1))
.map(|(i, log)| LocalizedLogEntry {
entry: log,
block_hash: hash.clone(),
block_number: number,
transaction_hash: hashes.get(index).cloned().unwrap_or_else(H256::new),
transaction_index: index,
log_index: log_index + i
})
.collect::<Vec<LocalizedLogEntry>>()
})
.collect::<Vec<LocalizedLogEntry>>()
})
.collect()
}
fn filter_traces(&self, filter: TraceFilter) -> Option<Vec<LocalizedTrace>> {
let start = self.block_number(filter.range.start);
let end = self.block_number(filter.range.end);
if start.is_some() && end.is_some() {
let filter = trace::Filter {
range: start.unwrap() as usize..end.unwrap() as usize,
from_address: From::from(filter.from_address),
to_address: From::from(filter.to_address),
};
let traces = self.tracedb.filter(&filter);
Some(traces)
} else {
None
}
}
fn trace(&self, trace: TraceId) -> Option<LocalizedTrace> {
let trace_address = trace.address;
self.transaction_address(trace.transaction)
.and_then(|tx_address| {
self.block_number(BlockID::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.trace(number, tx_address.index, trace_address))
})
}
fn transaction_traces(&self, transaction: TransactionID) -> Option<Vec<LocalizedTrace>> {
self.transaction_address(transaction)
.and_then(|tx_address| {
self.block_number(BlockID::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.transaction_traces(number, tx_address.index))
})
}
fn block_traces(&self, block: BlockID) -> Option<Vec<LocalizedTrace>> {
self.block_number(block)
.and_then(|number| self.tracedb.block_traces(number))
}
fn last_hashes(&self) -> LastHashes {
self.build_last_hashes(self.chain.best_block_hash())
}
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, Error>> {
let fetch_account = |a: &Address| AccountDetails {
nonce: self.latest_nonce(a),
balance: self.latest_balance(a),
};
self.miner.import_transactions(self, transactions, fetch_account)
}
fn queue_transactions(&self, transactions: Vec<Bytes>) {
if self.queue_transactions.load(AtomicOrdering::Relaxed) > MAX_TX_QUEUE_SIZE {
debug!("Ignoring {} transactions: queue is full", transactions.len());
} else {
let len = transactions.len();
match self.io_channel.send(NetworkIoMessage::User(SyncMessage::NewTransactions(transactions))) {
Ok(_) => {
self.queue_transactions.fetch_add(len, AtomicOrdering::SeqCst);
}
Err(e) => {
debug!("Ignoring {} transactions: error queueing: {}", len, e);
}
}
}
}
fn pending_transactions(&self) -> Vec<SignedTransaction> {
self.miner.pending_transactions()
}
}
impl MiningBlockChainClient for Client {
fn prepare_open_block(&self, author: Address, gas_range_target: (U256, U256), extra_data: Bytes) -> OpenBlock {
let engine = self.engine.deref().deref();
let h = self.chain.best_block_hash();
let mut open_block = OpenBlock::new(
engine,
&self.vm_factory,
false, // TODO: this will need to be parameterised once we want to do immediate mining insertion.
self.state_db.lock().unwrap().boxed_clone(),
&self.chain.block_header(&h).expect("h is best block hash: so it's header must exist: qed"),
self.build_last_hashes(h.clone()),
self.dao_rescue_block_gas_limit(h.clone()),
author,
gas_range_target,
extra_data,
).expect("OpenBlock::new only fails if parent state root invalid; state root of best block's header is never invalid; qed");
// Add uncles
self.chain
.find_uncle_headers(&h, engine.maximum_uncle_age())
.unwrap()
.into_iter()
.take(engine.maximum_uncle_count())
.foreach(|h| {
open_block.push_uncle(h).unwrap();
});
open_block
}
fn vm_factory(&self) -> &EvmFactory {
&self.vm_factory
}
}
impl MayPanic for Client {
fn on_panic<F>(&self, closure: F) where F: OnPanicListener {
self.panic_handler.on_panic(closure);
}
}

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ethcore/src/client/client.rs.in Normal file
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// 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::path::PathBuf;
use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
use util::*;
use util::panics::*;
use views::BlockView;
use error::{Error, ImportError, ExecutionError, BlockError, ImportResult};
use header::{BlockNumber, Header};
use state::State;
use spec::Spec;
use engine::Engine;
use views::HeaderView;
use service::{NetSyncMessage, SyncMessage};
use env_info::LastHashes;
use verification;
use verification::{PreverifiedBlock, Verifier};
use block::*;
use transaction::{LocalizedTransaction, SignedTransaction, Action};
use blockchain::extras::TransactionAddress;
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::Error as ClientError;
use env_info::EnvInfo;
use executive::{Executive, Executed, TransactOptions, contract_address};
use receipt::LocalizedReceipt;
pub use blockchain::CacheSize as BlockChainCacheSize;
use trace::{TraceDB, ImportRequest as TraceImportRequest, LocalizedTrace, Database as TraceDatabase};
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 ipc::IpcConfig;
use ipc::binary::{BinaryConvertable, BinaryConvertError};
const MAX_TX_QUEUE_SIZE: usize = 4096;
impl fmt::Display for BlockChainInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "#{}.{}", self.best_block_number, self.best_block_hash)
}
}
/// Report on the status of a client.
#[derive(Default, Clone, Debug, Eq, PartialEq)]
pub struct ClientReport {
/// How many blocks have been imported so far.
pub blocks_imported: usize,
/// How many transactions have been applied so far.
pub transactions_applied: usize,
/// How much gas has been processed so far.
pub gas_processed: U256,
/// Memory used by state DB
pub state_db_mem: usize,
}
impl ClientReport {
/// Alter internal reporting to reflect the additional `block` has been processed.
pub fn accrue_block(&mut self, block: &PreverifiedBlock) {
self.blocks_imported += 1;
self.transactions_applied += block.transactions.len();
self.gas_processed = self.gas_processed + block.header.gas_used;
}
}
/// 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 {
chain: Arc<BlockChain>,
tracedb: Arc<TraceDB<BlockChain>>,
engine: Arc<Box<Engine>>,
state_db: Mutex<Box<JournalDB>>,
block_queue: BlockQueue,
report: RwLock<ClientReport>,
import_lock: Mutex<()>,
panic_handler: Arc<PanicHandler>,
verifier: Box<Verifier>,
vm_factory: Arc<EvmFactory>,
miner: Arc<Miner>,
io_channel: IoChannel<NetSyncMessage>,
queue_transactions: AtomicUsize,
}
const HISTORY: u64 = 1200;
// DO NOT TOUCH THIS ANY MORE UNLESS YOU REALLY KNOW WHAT YOU'RE DOING.
// Altering it will force a blanket DB update for *all* JournalDB-derived
// databases.
// Instead, add/upgrade the version string of the individual JournalDB-derived database
// of which you actually want force an upgrade.
const CLIENT_DB_VER_STR: &'static str = "5.3";
/// Get the path for the databases given the root path and information on the databases.
pub fn get_db_path(path: &Path, pruning: journaldb::Algorithm, genesis_hash: H256) -> PathBuf {
let mut dir = path.to_path_buf();
dir.push(H64::from(genesis_hash).hex());
//TODO: sec/fat: pruned/full versioning
// version here is a bit useless now, since it's controlled only be the pruning algo.
dir.push(format!("v{}-sec-{}", CLIENT_DB_VER_STR, pruning));
dir
}
/// Append a path element to the given path and return the string.
pub fn append_path(path: &Path, item: &str) -> String {
let mut p = path.to_path_buf();
p.push(item);
p.to_str().unwrap().to_owned()
}
impl Client {
/// Create a new client with given spec and DB path and custom verifier.
pub fn new(
config: ClientConfig,
spec: Spec,
path: &Path,
miner: Arc<Miner>,
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));
let tracedb = Arc::new(try!(TraceDB::new(config.tracing, &path, chain.clone())));
let mut state_db_config = match config.db_cache_size {
None => DatabaseConfig::default(),
Some(cache_size) => DatabaseConfig::with_cache(cache_size),
};
if config.db_compaction == DatabaseCompactionProfile::HDD {
state_db_config = state_db_config.compaction(CompactionProfile::hdd());
}
let mut state_db = journaldb::new(
&append_path(&path, "state"),
config.pruning,
state_db_config
);
if state_db.is_empty() && spec.ensure_db_good(state_db.as_hashdb_mut()) {
state_db.commit(0, &spec.genesis_header().hash(), None).expect("Error commiting genesis state to state DB");
}
let engine = Arc::new(spec.engine);
let block_queue = BlockQueue::new(config.queue, engine.clone(), message_channel.clone());
let panic_handler = PanicHandler::new_in_arc();
panic_handler.forward_from(&block_queue);
let client = Client {
chain: chain,
tracedb: tracedb,
engine: engine,
state_db: Mutex::new(state_db),
block_queue: block_queue,
report: RwLock::new(Default::default()),
import_lock: Mutex::new(()),
panic_handler: panic_handler,
verifier: verification::new(config.verifier_type),
vm_factory: Arc::new(EvmFactory::new(config.vm_type)),
miner: miner,
io_channel: message_channel,
queue_transactions: AtomicUsize::new(0),
};
Ok(Arc::new(client))
}
/// Flush the block import queue.
pub fn flush_queue(&self) {
self.block_queue.flush();
}
fn build_last_hashes(&self, parent_hash: H256) -> LastHashes {
let mut last_hashes = LastHashes::new();
last_hashes.resize(256, H256::new());
last_hashes[0] = parent_hash;
for i in 0..255 {
match self.chain.block_details(&last_hashes[i]) {
Some(details) => {
last_hashes[i + 1] = details.parent.clone();
},
None => break,
}
}
last_hashes
}
fn check_and_close_block(&self, block: &PreverifiedBlock) -> Result<LockedBlock, ()> {
let engine = self.engine.deref().deref();
let header = &block.header;
// Check the block isn't so old we won't be able to enact it.
let best_block_number = self.chain.best_block_number();
if best_block_number >= HISTORY && header.number() <= best_block_number - HISTORY {
warn!(target: "client", "Block import failed for #{} ({})\nBlock is ancient (current best block: #{}).", header.number(), header.hash(), best_block_number);
return Err(());
}
// Verify Block Family
let verify_family_result = self.verifier.verify_block_family(&header, &block.bytes, engine, self.chain.deref());
if let Err(e) = verify_family_result {
warn!(target: "client", "Stage 3 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
};
// Check if Parent is in chain
let chain_has_parent = self.chain.block_header(&header.parent_hash);
if let None = chain_has_parent {
warn!(target: "client", "Block import failed for #{} ({}): Parent not found ({}) ", header.number(), header.hash(), header.parent_hash);
return Err(());
};
// 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.lock().unwrap().boxed_clone();
let enact_result = enact_verified(&block, engine, self.tracedb.tracing_enabled(), db, &parent, last_hashes, self.dao_rescue_block_gas_limit(header.parent_hash.clone()), &self.vm_factory);
if let Err(e) = enact_result {
warn!(target: "client", "Block import failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
};
// Final Verification
let locked_block = enact_result.unwrap();
if let Err(e) = self.verifier.verify_block_final(&header, locked_block.block().header()) {
warn!(target: "client", "Stage 4 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
return Err(());
}
Ok(locked_block)
}
fn calculate_enacted_retracted(&self, import_results: Vec<ImportRoute>) -> (Vec<H256>, Vec<H256>) {
fn map_to_vec(map: Vec<(H256, bool)>) -> Vec<H256> {
map.into_iter().map(|(k, _v)| k).collect()
}
// In ImportRoute we get all the blocks that have been enacted and retracted by single insert.
// Because we are doing multiple inserts some of the blocks that were enacted in import `k`
// could be retracted in import `k+1`. This is why to understand if after all inserts
// the block is enacted or retracted we iterate over all routes and at the end final state
// will be in the hashmap
let map = import_results.into_iter().fold(HashMap::new(), |mut map, route| {
for hash in route.enacted {
map.insert(hash, true);
}
for hash in route.retracted {
map.insert(hash, false);
}
map
});
// Split to enacted retracted (using hashmap value)
let (enacted, retracted) = map.into_iter().partition(|&(_k, v)| v);
// And convert tuples to keys
(map_to_vec(enacted), map_to_vec(retracted))
}
/// This is triggered by a message coming from a block queue when the block is ready for insertion
pub fn import_verified_blocks(&self, io: &IoChannel<NetSyncMessage>) -> usize {
let max_blocks_to_import = 64;
let mut imported_blocks = Vec::with_capacity(max_blocks_to_import);
let mut invalid_blocks = HashSet::new();
let mut import_results = Vec::with_capacity(max_blocks_to_import);
let _import_lock = self.import_lock.lock();
let _timer = PerfTimer::new("import_verified_blocks");
let blocks = self.block_queue.drain(max_blocks_to_import);
let original_best = self.chain_info().best_block_hash;
for block in blocks {
let header = &block.header;
if invalid_blocks.contains(&header.parent_hash) {
invalid_blocks.insert(header.hash());
continue;
}
let closed_block = self.check_and_close_block(&block);
if let Err(_) = closed_block {
invalid_blocks.insert(header.hash());
continue;
}
imported_blocks.push(header.hash());
// Are we committing an era?
let ancient = if header.number() >= HISTORY {
let n = header.number() - HISTORY;
Some((n, self.chain.block_hash(n).unwrap()))
} else {
None
};
// Commit results
let closed_block = closed_block.unwrap();
let receipts = closed_block.block().receipts().clone();
let traces = From::from(closed_block.block().traces().clone().unwrap_or_else(Vec::new));
closed_block.drain()
.commit(header.number(), &header.hash(), ancient)
.expect("State DB commit failed.");
// And update the chain after commit to prevent race conditions
// (when something is in chain but you are not able to fetch details)
let route = self.chain.insert_block(&block.bytes, receipts);
self.tracedb.import(TraceImportRequest {
traces: traces,
block_hash: header.hash(),
block_number: header.number(),
enacted: route.enacted.clone(),
retracted: route.retracted.len()
});
import_results.push(route);
self.report.write().unwrap().accrue_block(&block);
trace!(target: "client", "Imported #{} ({})", header.number(), header.hash());
}
let imported = imported_blocks.len();
let invalid_blocks = invalid_blocks.into_iter().collect::<Vec<H256>>();
{
if !invalid_blocks.is_empty() {
self.block_queue.mark_as_bad(&invalid_blocks);
}
if !imported_blocks.is_empty() {
self.block_queue.mark_as_good(&imported_blocks);
}
}
{
if !imported_blocks.is_empty() && self.block_queue.queue_info().is_empty() {
let (enacted, retracted) = self.calculate_enacted_retracted(import_results);
if self.queue_info().is_empty() {
self.miner.chain_new_blocks(self, &imported_blocks, &invalid_blocks, &enacted, &retracted);
}
io.send(NetworkIoMessage::User(SyncMessage::NewChainBlocks {
imported: imported_blocks,
invalid: invalid_blocks,
enacted: enacted,
retracted: retracted,
})).unwrap_or_else(|e| warn!("Error sending IO notification: {:?}", e));
}
}
{
if self.chain_info().best_block_hash != original_best {
self.miner.update_sealing(self);
}
}
imported
}
/// Import transactions from the IO queue
pub fn import_queued_transactions(&self, transactions: &[Bytes]) -> usize {
let _timer = PerfTimer::new("import_queued_transactions");
self.queue_transactions.fetch_sub(transactions.len(), AtomicOrdering::SeqCst);
let fetch_account = |a: &Address| AccountDetails {
nonce: self.latest_nonce(a),
balance: self.latest_balance(a),
};
let tx = transactions.iter().filter_map(|bytes| UntrustedRlp::new(&bytes).as_val().ok()).collect();
let results = self.miner.import_transactions(self, tx, fetch_account);
results.len()
}
/// Attempt to get a copy of a specific block's state.
///
/// This will not fail if given BlockID::Latest.
/// Otherwise, this can fail (but may not) if the DB prunes state.
pub fn state_at(&self, id: BlockID) -> Option<State> {
// fast path for latest state.
if let BlockID::Latest = id.clone() {
return Some(self.state())
}
let block_number = match self.block_number(id.clone()) {
Some(num) => num,
None => return None,
};
self.block_header(id).and_then(|header| {
let db = self.state_db.lock().unwrap().boxed_clone();
// early exit for pruned blocks
if db.is_pruned() && self.chain.best_block_number() >= block_number + HISTORY {
return None;
}
let root = HeaderView::new(&header).state_root();
State::from_existing(db, root, self.engine.account_start_nonce()).ok()
})
}
/// Get a copy of the best block's state.
pub fn state(&self) -> State {
State::from_existing(self.state_db.lock().unwrap().boxed_clone(), HeaderView::new(&self.best_block_header()).state_root(), self.engine.account_start_nonce())
.expect("State root of best block header always valid.")
}
/// Get info on the cache.
pub fn blockchain_cache_info(&self) -> BlockChainCacheSize {
self.chain.cache_size()
}
/// Get the report.
pub fn report(&self) -> ClientReport {
let mut report = self.report.read().unwrap().clone();
report.state_db_mem = self.state_db.lock().unwrap().mem_used();
report
}
/// Tick the client.
pub fn tick(&self) {
self.chain.collect_garbage();
self.block_queue.collect_garbage();
}
/// Set up the cache behaviour.
pub fn configure_cache(&self, pref_cache_size: usize, max_cache_size: usize) {
self.chain.configure_cache(pref_cache_size, max_cache_size);
}
/// Look up the block number for the given block ID.
pub fn block_number(&self, id: BlockID) -> Option<BlockNumber> {
match id {
BlockID::Number(number) => Some(number),
BlockID::Hash(ref hash) => self.chain.block_number(hash),
BlockID::Earliest => Some(0),
BlockID::Latest => Some(self.chain.best_block_number())
}
}
fn block_hash(chain: &BlockChain, id: BlockID) -> Option<H256> {
match id {
BlockID::Hash(hash) => Some(hash),
BlockID::Number(number) => chain.block_hash(number),
BlockID::Earliest => chain.block_hash(0),
BlockID::Latest => Some(chain.best_block_hash())
}
}
fn transaction_address(&self, id: TransactionID) -> Option<TransactionAddress> {
match id {
TransactionID::Hash(ref hash) => self.chain.transaction_address(hash),
TransactionID::Location(id, index) => Self::block_hash(&self.chain, id).map(|hash| TransactionAddress {
block_hash: hash,
index: index,
})
}
}
}
#[derive(Ipc)]
impl BlockChainClient for Client {
fn call(&self, t: &SignedTransaction, analytics: CallAnalytics) -> Result<Executed, ExecutionError> {
let header = self.block_header(BlockID::Latest).unwrap();
let view = HeaderView::new(&header);
let last_hashes = self.build_last_hashes(view.hash());
let env_info = EnvInfo {
number: view.number(),
author: view.author(),
timestamp: view.timestamp(),
difficulty: view.difficulty(),
last_hashes: last_hashes,
gas_used: U256::zero(),
gas_limit: U256::max_value(),
dao_rescue_block_gas_limit: self.dao_rescue_block_gas_limit(view.parent_hash()),
};
// that's just a copy of the state.
let mut state = self.state();
let sender = try!(t.sender().map_err(|e| {
let message = format!("Transaction malformed: {:?}", e);
ExecutionError::TransactionMalformed(message)
}));
let balance = state.balance(&sender);
let needed_balance = t.value + t.gas * t.gas_price;
if balance < needed_balance {
// give the sender a sufficient balance
state.add_balance(&sender, &(needed_balance - balance));
}
let options = TransactOptions { tracing: analytics.transaction_tracing, vm_tracing: analytics.vm_tracing, check_nonce: false };
let mut ret = Executive::new(&mut state, &env_info, self.engine.deref().deref(), &self.vm_factory).transact(t, options);
// TODO gav move this into Executive.
if analytics.state_diffing {
if let Ok(ref mut x) = ret {
x.state_diff = Some(state.diff_from(self.state()));
}
}
ret
}
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()))
}
fn block_body(&self, id: BlockID) -> Option<Bytes> {
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash).map(|bytes| {
let rlp = Rlp::new(&bytes);
let mut body = RlpStream::new_list(2);
body.append_raw(rlp.at(1).as_raw(), 1);
body.append_raw(rlp.at(2).as_raw(), 1);
body.out()
})
})
}
fn block(&self, id: BlockID) -> Option<Bytes> {
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash)
})
}
fn block_status(&self, id: BlockID) -> BlockStatus {
match Self::block_hash(&self.chain, id) {
Some(ref hash) if self.chain.is_known(hash) => BlockStatus::InChain,
Some(hash) => self.block_queue.block_status(&hash),
None => BlockStatus::Unknown
}
}
fn block_total_difficulty(&self, id: BlockID) -> Option<U256> {
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block_details(&hash)).map(|d| d.total_difficulty)
}
fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.nonce(address))
}
fn block_hash(&self, id: BlockID) -> Option<H256> {
Self::block_hash(&self.chain, id)
}
fn code(&self, address: &Address) -> Option<Bytes> {
self.state().code(address)
}
fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.balance(address))
}
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
self.state_at(id).map(|s| s.storage_at(address, position))
}
fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction> {
self.transaction_address(id).and_then(|address| self.chain.transaction(&address))
}
fn uncle(&self, id: UncleID) -> Option<Header> {
let index = id.1;
self.block(id.0).and_then(|block| BlockView::new(&block).uncle_at(index))
}
fn transaction_receipt(&self, id: TransactionID) -> Option<LocalizedReceipt> {
self.transaction_address(id).and_then(|address| {
let t = self.chain.block(&address.block_hash)
.and_then(|block| BlockView::new(&block).localized_transaction_at(address.index));
match (t, self.chain.transaction_receipt(&address)) {
(Some(tx), Some(receipt)) => {
let block_hash = tx.block_hash.clone();
let block_number = tx.block_number.clone();
let transaction_hash = tx.hash();
let transaction_index = tx.transaction_index;
let prior_gas_used = match tx.transaction_index {
0 => U256::zero(),
i => {
let prior_address = TransactionAddress { block_hash: address.block_hash, index: i - 1 };
let prior_receipt = self.chain.transaction_receipt(&prior_address).expect("Transaction receipt at `address` exists; `prior_address` has lower index in same block; qed");
prior_receipt.gas_used
}
};
Some(LocalizedReceipt {
transaction_hash: tx.hash(),
transaction_index: tx.transaction_index,
block_hash: tx.block_hash,
block_number: tx.block_number,
cumulative_gas_used: receipt.gas_used,
gas_used: receipt.gas_used - prior_gas_used,
contract_address: match tx.action {
Action::Call(_) => None,
Action::Create => Some(contract_address(&tx.sender().unwrap(), &tx.nonce))
},
logs: receipt.logs.into_iter().enumerate().map(|(i, log)| LocalizedLogEntry {
entry: log,
block_hash: block_hash.clone(),
block_number: block_number,
transaction_hash: transaction_hash.clone(),
transaction_index: transaction_index,
log_index: i
}).collect()
})
},
_ => None
}
})
}
fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute> {
match self.chain.is_known(from) && self.chain.is_known(to) {
true => Some(self.chain.tree_route(from.clone(), to.clone())),
false => None
}
}
fn find_uncles(&self, hash: &H256) -> Option<Vec<H256>> {
self.chain.find_uncle_hashes(hash, self.engine.maximum_uncle_age())
}
fn state_data(&self, hash: &H256) -> Option<Bytes> {
self.state_db.lock().unwrap().state(hash)
}
fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
self.chain.block_receipts(hash).map(|receipts| rlp::encode(&receipts).to_vec())
}
fn import_block(&self, bytes: Bytes) -> ImportResult {
{
let header = BlockView::new(&bytes).header_view();
if self.chain.is_known(&header.sha3()) {
return Err(ImportError::AlreadyInChain.into());
}
if self.block_status(BlockID::Hash(header.parent_hash())) == BlockStatus::Unknown {
return Err(BlockError::UnknownParent(header.parent_hash()).into());
}
}
self.block_queue.import_block(bytes)
}
fn queue_info(&self) -> BlockQueueInfo {
self.block_queue.queue_info()
}
fn clear_queue(&self) {
self.block_queue.clear();
}
fn chain_info(&self) -> BlockChainInfo {
BlockChainInfo {
total_difficulty: self.chain.best_block_total_difficulty(),
pending_total_difficulty: self.chain.best_block_total_difficulty(),
genesis_hash: self.chain.genesis_hash(),
best_block_hash: self.chain.best_block_hash(),
best_block_number: From::from(self.chain.best_block_number())
}
}
fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockID, to_block: BlockID) -> Option<Vec<BlockNumber>> {
match (self.block_number(from_block), self.block_number(to_block)) {
(Some(from), Some(to)) => Some(self.chain.blocks_with_bloom(bloom, from, to)),
_ => None
}
}
fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry> {
// TODO: lock blockchain only once
let mut blocks = filter.bloom_possibilities().iter()
.filter_map(|bloom| self.blocks_with_bloom(bloom, filter.from_block.clone(), filter.to_block.clone()))
.flat_map(|m| m)
// remove duplicate elements
.collect::<HashSet<u64>>()
.into_iter()
.collect::<Vec<u64>>();
blocks.sort();
blocks.into_iter()
.filter_map(|number| self.chain.block_hash(number).map(|hash| (number, hash)))
.filter_map(|(number, hash)| self.chain.block_receipts(&hash).map(|r| (number, hash, r.receipts)))
.filter_map(|(number, hash, receipts)| self.chain.block(&hash).map(|ref b| (number, hash, receipts, BlockView::new(b).transaction_hashes())))
.flat_map(|(number, hash, receipts, hashes)| {
let mut log_index = 0;
receipts.into_iter()
.enumerate()
.flat_map(|(index, receipt)| {
log_index += receipt.logs.len();
receipt.logs.into_iter()
.enumerate()
.filter(|tuple| filter.matches(&tuple.1))
.map(|(i, log)| LocalizedLogEntry {
entry: log,
block_hash: hash.clone(),
block_number: number,
transaction_hash: hashes.get(index).cloned().unwrap_or_else(H256::new),
transaction_index: index,
log_index: log_index + i
})
.collect::<Vec<LocalizedLogEntry>>()
})
.collect::<Vec<LocalizedLogEntry>>()
})
.collect()
}
fn filter_traces(&self, filter: TraceFilter) -> Option<Vec<LocalizedTrace>> {
let start = self.block_number(filter.range.start);
let end = self.block_number(filter.range.end);
if start.is_some() && end.is_some() {
let filter = trace::Filter {
range: start.unwrap() as usize..end.unwrap() as usize,
from_address: From::from(filter.from_address),
to_address: From::from(filter.to_address),
};
let traces = self.tracedb.filter(&filter);
Some(traces)
} else {
None
}
}
fn trace(&self, trace: TraceId) -> Option<LocalizedTrace> {
let trace_address = trace.address;
self.transaction_address(trace.transaction)
.and_then(|tx_address| {
self.block_number(BlockID::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.trace(number, tx_address.index, trace_address))
})
}
fn transaction_traces(&self, transaction: TransactionID) -> Option<Vec<LocalizedTrace>> {
self.transaction_address(transaction)
.and_then(|tx_address| {
self.block_number(BlockID::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.transaction_traces(number, tx_address.index))
})
}
fn block_traces(&self, block: BlockID) -> Option<Vec<LocalizedTrace>> {
self.block_number(block)
.and_then(|number| self.tracedb.block_traces(number))
}
fn last_hashes(&self) -> LastHashes {
self.build_last_hashes(self.chain.best_block_hash())
}
fn import_transactions(&self, transactions: Vec<SignedTransaction>) -> Vec<Result<TransactionImportResult, Error>> {
let fetch_account = |a: &Address| AccountDetails {
nonce: self.latest_nonce(a),
balance: self.latest_balance(a),
};
self.miner.import_transactions(self, transactions, fetch_account)
}
fn queue_transactions(&self, transactions: Vec<Bytes>) {
if self.queue_transactions.load(AtomicOrdering::Relaxed) > MAX_TX_QUEUE_SIZE {
debug!("Ignoring {} transactions: queue is full", transactions.len());
} else {
let len = transactions.len();
match self.io_channel.send(NetworkIoMessage::User(SyncMessage::NewTransactions(transactions))) {
Ok(_) => {
self.queue_transactions.fetch_add(len, AtomicOrdering::SeqCst);
}
Err(e) => {
debug!("Ignoring {} transactions: error queueing: {}", len, e);
}
}
}
}
fn pending_transactions(&self) -> Vec<SignedTransaction> {
self.miner.pending_transactions()
}
}
impl MiningBlockChainClient for Client {
fn prepare_open_block(&self, author: Address, gas_range_target: (U256, U256), extra_data: Bytes) -> OpenBlock {
let engine = self.engine.deref().deref();
let h = self.chain.best_block_hash();
let mut open_block = OpenBlock::new(
engine,
&self.vm_factory,
false, // TODO: this will need to be parameterised once we want to do immediate mining insertion.
self.state_db.lock().unwrap().boxed_clone(),
&self.chain.block_header(&h).expect("h is best block hash: so it's header must exist: qed"),
self.build_last_hashes(h.clone()),
self.dao_rescue_block_gas_limit(h.clone()),
author,
gas_range_target,
extra_data,
).expect("OpenBlock::new only fails if parent state root invalid; state root of best block's header is never invalid; qed");
// Add uncles
self.chain
.find_uncle_headers(&h, engine.maximum_uncle_age())
.unwrap()
.into_iter()
.take(engine.maximum_uncle_count())
.foreach(|h| {
open_block.push_uncle(h).unwrap();
});
open_block
}
fn vm_factory(&self) -> &EvmFactory {
&self.vm_factory
}
}
impl MayPanic for Client {
fn on_panic<F>(&self, closure: F) where F: OnPanicListener {
self.panic_handler.on_panic(closure);
}
}
impl IpcConfig for Client { }

1
ethcore/src/lib.rs
View File

@ -92,6 +92,7 @@ extern crate bloomchain;
#[macro_use] extern crate ethcore_ipc as ipc; #[macro_use] extern crate ethcore_ipc as ipc;
extern crate rayon; extern crate rayon;
pub extern crate ethstore; pub extern crate ethstore;
extern crate semver;
#[cfg(test)] extern crate ethcore_devtools as devtools; #[cfg(test)] extern crate ethcore_devtools as devtools;
#[cfg(feature = "jit" )] extern crate evmjit; #[cfg(feature = "jit" )] extern crate evmjit;

4
ethcore/src/types/account_diff.rs
View File

@ -46,7 +46,7 @@ impl<T> Diff<T> where T: Eq + BinaryConvertable {
pub fn is_same(&self) -> bool { match *self { Diff::Same => true, _ => false }} pub fn is_same(&self) -> bool { match *self { Diff::Same => true, _ => false }}
} }
#[derive(Debug, PartialEq, Eq, Clone)] #[derive(Debug, PartialEq, Eq, Clone, Binary)]
/// Account diff. /// Account diff.
pub struct AccountDiff { pub struct AccountDiff {
/// Change in balance, allowed to be `Diff::Same`. /// Change in balance, allowed to be `Diff::Same`.
@ -59,7 +59,7 @@ pub struct AccountDiff {
pub storage: BTreeMap<H256, Diff<H256>>, pub storage: BTreeMap<H256, Diff<H256>>,
} }
#[derive(Debug, PartialEq, Eq, Clone)] #[derive(Debug, PartialEq, Eq, Clone, Binary)]
/// Change in existance type. /// Change in existance type.
// TODO: include other types of change. // TODO: include other types of change.
pub enum Existance { pub enum Existance {

2
ethcore/src/types/executed.rs
View File

@ -27,7 +27,7 @@ use std::mem;
use std::collections::VecDeque; use std::collections::VecDeque;
/// Transaction execution receipt. /// Transaction execution receipt.
#[derive(Debug, PartialEq, Clone)] #[derive(Debug, PartialEq, Clone, Binary)]
pub struct Executed { pub struct Executed {
/// Gas paid up front for execution of transaction. /// Gas paid up front for execution of transaction.
pub gas: U256, pub gas: U256,

2
ethcore/src/types/state_diff.rs
View File

@ -19,7 +19,7 @@
use util::*; use util::*;
use account_diff::*; use account_diff::*;
#[derive(Debug, PartialEq, Eq, Clone)] #[derive(Debug, PartialEq, Eq, Clone, Binary)]
/// Expression for the delta between two system states. Encoded the /// Expression for the delta between two system states. Encoded the
/// delta of every altered account. /// delta of every altered account.
pub struct StateDiff { pub struct StateDiff {

2
ipc/rpc/src/interface.rs
View File

@ -91,7 +91,7 @@ pub fn invoke<W>(method_num: u16, params: &Option<Vec<u8>>, w: &mut W) where W:
} }
/// IpcSocket, read/write generalization /// IpcSocket, read/write generalization
pub trait IpcSocket: Read + Write + Sync { pub trait IpcSocket: Read + Write + Sync + Send {
} }
/// Basically something that needs only socket to be spawned /// Basically something that needs only socket to be spawned