refactored tree changes
This commit is contained in:
NikVolf
parent
baababea02
commit
1ac2987437
@ -33,7 +33,7 @@ fn main() {
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// client interface
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{
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let src = Path::new("src/client/client_ipc.rs");
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let src = Path::new("src/client/client.rs");
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let intermediate = Path::new(&out_dir).join("client.intermediate.rs.in");
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let mut registry = syntex::Registry::new();
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codegen::register(&mut registry);
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@ -14,7 +14,989 @@
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Blockchain database client.
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use std::path::PathBuf;
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use std::collections::{HashSet, HashMap};
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use std::ops::Deref;
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use std::mem;
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use std::collections::VecDeque;
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use std::sync::*;
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use std::path::Path;
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use std::fmt;
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use std::sync::atomic::{AtomicUsize, AtomicBool, Ordering as AtomicOrdering};
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use std::time::Instant;
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#![allow(dead_code, unused_assignments, unused_variables, missing_docs)] // codegen issues
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include!(concat!(env!("OUT_DIR"), "/client.ipc.rs"));
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// util
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use util::numbers::*;
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use util::panics::*;
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use util::network::*;
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use util::io::*;
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use util::rlp;
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use util::sha3::*;
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use util::{Bytes};
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use util::rlp::{RlpStream, Rlp, UntrustedRlp};
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use util::journaldb;
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use util::journaldb::JournalDB;
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use util::kvdb::*;
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use util::Itertools;
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use util::PerfTimer;
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use util::View;
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use util::Stream;
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// other
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use views::BlockView;
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use error::{ImportError, ExecutionError, BlockError, ImportResult};
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use header::BlockNumber;
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use state::State;
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use spec::Spec;
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use engine::Engine;
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use views::HeaderView;
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use service::{NetSyncMessage, SyncMessage};
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use env_info::LastHashes;
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use verification;
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use verification::{PreverifiedBlock, Verifier};
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use block::*;
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use transaction::{LocalizedTransaction, SignedTransaction, Action};
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use blockchain::extras::TransactionAddress;
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use types::filter::Filter;
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use log_entry::LocalizedLogEntry;
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use block_queue::{BlockQueue, BlockQueueInfo};
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use blockchain::{BlockChain, BlockProvider, TreeRoute, ImportRoute};
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use client::{BlockID, TransactionID, UncleID, TraceId, ClientConfig,
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DatabaseCompactionProfile, BlockChainClient, MiningBlockChainClient,
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TraceFilter, CallAnalytics, BlockImportError, TransactionImportError,
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TransactionImportResult, Mode};
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use client::Error as ClientError;
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use env_info::EnvInfo;
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use executive::{Executive, Executed, TransactOptions, contract_address};
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use receipt::LocalizedReceipt;
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use trace::{TraceDB, ImportRequest as TraceImportRequest, LocalizedTrace, Database as TraceDatabase};
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use trace;
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use evm::Factory as EvmFactory;
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use miner::{Miner, MinerService, AccountDetails};
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use util::TrieFactory;
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use ipc::IpcConfig;
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use ipc::binary::{BinaryConvertError};
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// re-export
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pub use types::blockchain_info::BlockChainInfo;
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pub use types::block_status::BlockStatus;
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pub use blockchain::CacheSize as BlockChainCacheSize;
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const MAX_TX_QUEUE_SIZE: usize = 4096;
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const MAX_QUEUE_SIZE_TO_SLEEP_ON: usize = 2;
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impl fmt::Display for BlockChainInfo {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "#{}.{}", self.best_block_number, self.best_block_hash)
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}
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}
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/// Report on the status of a client.
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#[derive(Default, Clone, Debug, Eq, PartialEq)]
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pub struct ClientReport {
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/// How many blocks have been imported so far.
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pub blocks_imported: usize,
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/// How many transactions have been applied so far.
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pub transactions_applied: usize,
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/// How much gas has been processed so far.
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pub gas_processed: U256,
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/// Memory used by state DB
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pub state_db_mem: usize,
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}
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impl ClientReport {
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/// Alter internal reporting to reflect the additional `block` has been processed.
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pub fn accrue_block(&mut self, block: &PreverifiedBlock) {
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self.blocks_imported += 1;
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self.transactions_applied += block.transactions.len();
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self.gas_processed = self.gas_processed + block.header.gas_used;
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}
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}
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struct SleepState {
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last_activity: Option<Instant>,
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last_autosleep: Option<Instant>,
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}
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impl SleepState {
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fn new(awake: bool) -> Self {
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SleepState {
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last_activity: match awake { false => None, true => Some(Instant::now()) },
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last_autosleep: match awake { false => Some(Instant::now()), true => None },
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}
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}
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}
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/// Blockchain database client backed by a persistent database. Owns and manages a blockchain and a block queue.
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/// Call `import_block()` to import a block asynchronously; `flush_queue()` flushes the queue.
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pub struct Client {
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mode: Mode,
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chain: Arc<BlockChain>,
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tracedb: Arc<TraceDB<BlockChain>>,
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engine: Arc<Box<Engine>>,
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state_db: Mutex<Box<JournalDB>>,
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block_queue: BlockQueue,
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report: RwLock<ClientReport>,
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import_lock: Mutex<()>,
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panic_handler: Arc<PanicHandler>,
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verifier: Box<Verifier>,
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vm_factory: Arc<EvmFactory>,
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trie_factory: TrieFactory,
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miner: Arc<Miner>,
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sleep_state: Mutex<SleepState>,
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liveness: AtomicBool,
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io_channel: IoChannel<NetSyncMessage>,
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queue_transactions: AtomicUsize,
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}
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const HISTORY: u64 = 1200;
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// DO NOT TOUCH THIS ANY MORE UNLESS YOU REALLY KNOW WHAT YOU'RE DOING.
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// Altering it will force a blanket DB update for *all* JournalDB-derived
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// databases.
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// Instead, add/upgrade the version string of the individual JournalDB-derived database
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// of which you actually want force an upgrade.
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const CLIENT_DB_VER_STR: &'static str = "5.3";
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/// Get the path for the databases given the root path and information on the databases.
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pub fn get_db_path(path: &Path, pruning: journaldb::Algorithm, genesis_hash: H256) -> PathBuf {
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let mut dir = path.to_path_buf();
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dir.push(H64::from(genesis_hash).hex());
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//TODO: sec/fat: pruned/full versioning
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// version here is a bit useless now, since it's controlled only be the pruning algo.
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dir.push(format!("v{}-sec-{}", CLIENT_DB_VER_STR, pruning));
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dir
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}
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/// Append a path element to the given path and return the string.
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pub fn append_path(path: &Path, item: &str) -> String {
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let mut p = path.to_path_buf();
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p.push(item);
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p.to_str().unwrap().to_owned()
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}
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impl Client {
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/// Create a new client with given spec and DB path and custom verifier.
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pub fn new(
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config: ClientConfig,
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spec: Spec,
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path: &Path,
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miner: Arc<Miner>,
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message_channel: IoChannel<NetSyncMessage>
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) -> Result<Arc<Client>, ClientError> {
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let path = get_db_path(path, config.pruning, spec.genesis_header().hash());
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let gb = spec.genesis_block();
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let chain = Arc::new(BlockChain::new(config.blockchain, &gb, &path));
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let tracedb = Arc::new(try!(TraceDB::new(config.tracing, &path, chain.clone())));
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let mut state_db_config = match config.db_cache_size {
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None => DatabaseConfig::default(),
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Some(cache_size) => DatabaseConfig::with_cache(cache_size),
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};
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if config.db_compaction == DatabaseCompactionProfile::HDD {
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state_db_config = state_db_config.compaction(CompactionProfile::hdd());
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}
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let mut state_db = journaldb::new(
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&append_path(&path, "state"),
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config.pruning,
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state_db_config
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);
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if state_db.is_empty() && spec.ensure_db_good(state_db.as_hashdb_mut()) {
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state_db.commit(0, &spec.genesis_header().hash(), None).expect("Error commiting genesis state to state DB");
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}
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let engine = Arc::new(spec.engine);
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let block_queue = BlockQueue::new(config.queue, engine.clone(), message_channel.clone());
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let panic_handler = PanicHandler::new_in_arc();
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panic_handler.forward_from(&block_queue);
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let awake = match config.mode { Mode::Dark(..) => false, _ => true };
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let client = Client {
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sleep_state: Mutex::new(SleepState::new(awake)),
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liveness: AtomicBool::new(awake),
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mode: config.mode,
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chain: chain,
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tracedb: tracedb,
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engine: engine,
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state_db: Mutex::new(state_db),
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block_queue: block_queue,
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report: RwLock::new(Default::default()),
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import_lock: Mutex::new(()),
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panic_handler: panic_handler,
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verifier: verification::new(config.verifier_type),
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vm_factory: Arc::new(EvmFactory::new(config.vm_type)),
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trie_factory: TrieFactory::new(config.trie_spec),
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miner: miner,
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io_channel: message_channel,
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queue_transactions: AtomicUsize::new(0),
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};
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Ok(Arc::new(client))
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}
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/// Flush the block import queue.
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pub fn flush_queue(&self) {
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self.block_queue.flush();
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}
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fn build_last_hashes(&self, parent_hash: H256) -> LastHashes {
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let mut last_hashes = LastHashes::new();
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last_hashes.resize(256, H256::new());
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last_hashes[0] = parent_hash;
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for i in 0..255 {
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match self.chain.block_details(&last_hashes[i]) {
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Some(details) => {
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last_hashes[i + 1] = details.parent.clone();
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},
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None => break,
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}
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}
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last_hashes
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}
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fn check_and_close_block(&self, block: &PreverifiedBlock) -> Result<LockedBlock, ()> {
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let engine = self.engine.deref().deref();
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let header = &block.header;
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// Check the block isn't so old we won't be able to enact it.
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let best_block_number = self.chain.best_block_number();
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if best_block_number >= HISTORY && header.number() <= best_block_number - HISTORY {
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warn!(target: "client", "Block import failed for #{} ({})\nBlock is ancient (current best block: #{}).", header.number(), header.hash(), best_block_number);
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return Err(());
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}
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// Verify Block Family
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let verify_family_result = self.verifier.verify_block_family(&header, &block.bytes, engine, self.chain.deref());
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if let Err(e) = verify_family_result {
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warn!(target: "client", "Stage 3 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
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return Err(());
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};
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// Check if Parent is in chain
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let chain_has_parent = self.chain.block_header(&header.parent_hash);
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if let None = chain_has_parent {
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warn!(target: "client", "Block import failed for #{} ({}): Parent not found ({}) ", header.number(), header.hash(), header.parent_hash);
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return Err(());
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};
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// Enact Verified Block
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let parent = chain_has_parent.unwrap();
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let last_hashes = self.build_last_hashes(header.parent_hash.clone());
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let db = self.state_db.lock().unwrap().boxed_clone();
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let enact_result = enact_verified(&block, engine, self.tracedb.tracing_enabled(), db, &parent, last_hashes, &self.vm_factory, self.trie_factory.clone());
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if let Err(e) = enact_result {
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warn!(target: "client", "Block import failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
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return Err(());
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};
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// Final Verification
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let locked_block = enact_result.unwrap();
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if let Err(e) = self.verifier.verify_block_final(&header, locked_block.block().header()) {
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warn!(target: "client", "Stage 4 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
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return Err(());
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}
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Ok(locked_block)
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}
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fn calculate_enacted_retracted(&self, import_results: &[ImportRoute]) -> (Vec<H256>, Vec<H256>) {
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fn map_to_vec(map: Vec<(H256, bool)>) -> Vec<H256> {
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map.into_iter().map(|(k, _v)| k).collect()
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}
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// In ImportRoute we get all the blocks that have been enacted and retracted by single insert.
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// Because we are doing multiple inserts some of the blocks that were enacted in import `k`
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// could be retracted in import `k+1`. This is why to understand if after all inserts
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// the block is enacted or retracted we iterate over all routes and at the end final state
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// will be in the hashmap
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let map = import_results.iter().fold(HashMap::new(), |mut map, route| {
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for hash in &route.enacted {
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map.insert(hash.clone(), true);
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}
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for hash in &route.retracted {
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map.insert(hash.clone(), false);
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}
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map
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});
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// Split to enacted retracted (using hashmap value)
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let (enacted, retracted) = map.into_iter().partition(|&(_k, v)| v);
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// And convert tuples to keys
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(map_to_vec(enacted), map_to_vec(retracted))
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}
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/// This is triggered by a message coming from a block queue when the block is ready for insertion
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pub fn import_verified_blocks(&self, io: &IoChannel<NetSyncMessage>) -> usize {
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let max_blocks_to_import = 64;
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let mut imported_blocks = Vec::with_capacity(max_blocks_to_import);
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let mut invalid_blocks = HashSet::new();
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let mut import_results = Vec::with_capacity(max_blocks_to_import);
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let _import_lock = self.import_lock.lock();
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let _timer = PerfTimer::new("import_verified_blocks");
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let blocks = self.block_queue.drain(max_blocks_to_import);
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let original_best = self.chain_info().best_block_hash;
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for block in blocks {
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let header = &block.header;
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if invalid_blocks.contains(&header.parent_hash) {
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invalid_blocks.insert(header.hash());
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continue;
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}
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let closed_block = self.check_and_close_block(&block);
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if let Err(_) = closed_block {
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invalid_blocks.insert(header.hash());
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continue;
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}
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let closed_block = closed_block.unwrap();
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imported_blocks.push(header.hash());
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let route = self.commit_block(closed_block, &header.hash(), &block.bytes);
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import_results.push(route);
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self.report.write().unwrap().accrue_block(&block);
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trace!(target: "client", "Imported #{} ({})", header.number(), header.hash());
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}
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let imported = imported_blocks.len();
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let invalid_blocks = invalid_blocks.into_iter().collect::<Vec<H256>>();
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{
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if !invalid_blocks.is_empty() {
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self.block_queue.mark_as_bad(&invalid_blocks);
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}
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if !imported_blocks.is_empty() {
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self.block_queue.mark_as_good(&imported_blocks);
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}
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}
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{
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if !imported_blocks.is_empty() && self.block_queue.queue_info().is_empty() {
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let (enacted, retracted) = self.calculate_enacted_retracted(&import_results);
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if self.queue_info().is_empty() {
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self.miner.chain_new_blocks(self, &imported_blocks, &invalid_blocks, &enacted, &retracted);
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}
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io.send(NetworkIoMessage::User(SyncMessage::NewChainBlocks {
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imported: imported_blocks,
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invalid: invalid_blocks,
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enacted: enacted,
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retracted: retracted,
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sealed: Vec::new(),
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})).unwrap_or_else(|e| warn!("Error sending IO notification: {:?}", e));
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}
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}
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if self.chain_info().best_block_hash != original_best {
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self.miner.update_sealing(self);
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}
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imported
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}
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fn commit_block<B>(&self, block: B, hash: &H256, block_data: &[u8]) -> ImportRoute where B: IsBlock + Drain {
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let number = block.header().number();
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// Are we committing an era?
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let ancient = if number >= HISTORY {
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let n = number - HISTORY;
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Some((n, self.chain.block_hash(n).unwrap()))
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} else {
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None
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};
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// Commit results
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let receipts = block.receipts().clone();
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let traces = From::from(block.traces().clone().unwrap_or_else(Vec::new));
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// CHECK! I *think* this is fine, even if the state_root is equal to another
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// already-imported block of the same number.
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// TODO: Prove it with a test.
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block.drain().commit(number, hash, ancient).expect("State DB commit failed.");
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// And update the chain after commit to prevent race conditions
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// (when something is in chain but you are not able to fetch details)
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let route = self.chain.insert_block(block_data, receipts);
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self.tracedb.import(TraceImportRequest {
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traces: traces,
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block_hash: hash.clone(),
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block_number: number,
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enacted: route.enacted.clone(),
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retracted: route.retracted.len()
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});
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route
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}
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/// Import transactions from the IO queue
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pub fn import_queued_transactions(&self, transactions: &[Bytes]) -> usize {
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let _timer = PerfTimer::new("import_queued_transactions");
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self.queue_transactions.fetch_sub(transactions.len(), AtomicOrdering::SeqCst);
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let fetch_account = |a: &Address| AccountDetails {
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||||
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(), self.trie_factory.clone()).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(),
|
||||
self.trie_factory.clone())
|
||||
.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.
|
||||
// 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.
|
||||
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,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
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());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Ipc)]
|
||||
#[ipc(client_ident="RemoteClient")]
|
||||
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(),
|
||||
};
|
||||
// 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 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()))
|
||||
}
|
||||
|
||||
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<Bytes> {
|
||||
let index = id.position;
|
||||
self.block(id.block).and_then(|block| BlockView::new(&block).uncle_rlp_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) -> Result<H256, BlockImportError> {
|
||||
{
|
||||
let header = BlockView::new(&bytes).header_view();
|
||||
if self.chain.is_known(&header.sha3()) {
|
||||
return Err(BlockImportError::Import(ImportError::AlreadyInChain));
|
||||
}
|
||||
if self.block_status(BlockID::Hash(header.parent_hash())) == BlockStatus::Unknown {
|
||||
return Err(BlockImportError::Block(BlockError::UnknownParent(header.parent_hash())));
|
||||
}
|
||||
}
|
||||
Ok(try!(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, 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)
|
||||
.into_iter()
|
||||
.map(|res| res.map_err(|e| e.into()))
|
||||
.collect()
|
||||
}
|
||||
|
||||
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,
|
||||
self.trie_factory.clone(),
|
||||
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()),
|
||||
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
|
||||
}
|
||||
|
||||
fn import_sealed_block(&self, block: SealedBlock) -> ImportResult {
|
||||
let _import_lock = self.import_lock.lock();
|
||||
let _timer = PerfTimer::new("import_sealed_block");
|
||||
|
||||
let original_best = self.chain_info().best_block_hash;
|
||||
|
||||
let h = block.header().hash();
|
||||
let number = block.header().number();
|
||||
|
||||
let block_data = block.rlp_bytes();
|
||||
let route = self.commit_block(block, &h, &block_data);
|
||||
trace!(target: "client", "Imported sealed block #{} ({})", number, h);
|
||||
|
||||
{
|
||||
let (enacted, retracted) = self.calculate_enacted_retracted(&[route]);
|
||||
self.miner.chain_new_blocks(self, &[h.clone()], &[], &enacted, &retracted);
|
||||
|
||||
self.io_channel.send(NetworkIoMessage::User(SyncMessage::NewChainBlocks {
|
||||
imported: vec![h.clone()],
|
||||
invalid: vec![],
|
||||
enacted: enacted,
|
||||
retracted: retracted,
|
||||
sealed: vec![h.clone()],
|
||||
})).unwrap_or_else(|e| warn!("Error sending IO notification: {:?}", e));
|
||||
}
|
||||
|
||||
if self.chain_info().best_block_hash != original_best {
|
||||
self.miner.update_sealing(self);
|
||||
}
|
||||
|
||||
Ok(h)
|
||||
}
|
||||
}
|
||||
|
||||
impl MayPanic for Client {
|
||||
fn on_panic<F>(&self, closure: F) where F: OnPanicListener {
|
||||
self.panic_handler.on_panic(closure);
|
||||
}
|
||||
}
|
||||
|
||||
impl IpcConfig for Client { }
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -16,7 +16,6 @@
|
||||
|
||||
//! Blockchain database client.
|
||||
|
||||
mod client;
|
||||
mod config;
|
||||
mod error;
|
||||
mod test_client;
|
||||
@ -51,6 +50,13 @@ pub use types::call_analytics::CallAnalytics;
|
||||
pub use block_import_error::BlockImportError;
|
||||
pub use transaction_import::{TransactionImportResult, TransactionImportError};
|
||||
|
||||
mod client {
|
||||
//! Blockchain database client.
|
||||
|
||||
#![allow(dead_code, unused_assignments, unused_variables, missing_docs)] // codegen issues
|
||||
include!(concat!(env!("OUT_DIR"), "/client.ipc.rs"));
|
||||
}
|
||||
|
||||
/// Blockchain database client. Owns and manages a blockchain and a block queue.
|
||||
pub trait BlockChainClient : Sync + Send {
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user