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

Improve block and transaction propagation (#9954)

Browse Source 
* Refactor sync to add priority tasks.

* Send priority tasks notifications.

* Propagate blocks, optimize transactions.

* Implement transaction propagation. Use sync_channel.

* Tone down info.

* Prevent deadlock by not waiting forever for sync lock.

* Fix lock order.

* Don't use sync_channel to prevent deadlocks.

* Fix tests.
This commit is contained in:
Tomasz Drwięga 2018-11-28 10:30:05 +00:00 committed by Afri Schoedon
parent 14c9cbd40e
commit 0b5bbf6048
18 changed files with 631 additions and 300 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
ethcore/service/src/service.rs
View File

@ -106,7 +106,13 @@ impl ClientService {
info!("Configured for {} using {} engine", Colour::White.bold().paint(spec.name.clone()), Colour::Yellow.bold().paint(spec.engine.name()));
let pruning = config.pruning;
let client = Client::new(config, &spec, blockchain_db.clone(), miner.clone(), io_service.channel())?;
let client = Client::new(
config,
&spec,
blockchain_db.clone(),
miner.clone(),
io_service.channel(),
)?;
miner.set_io_channel(io_service.channel());
miner.set_in_chain_checker(&client.clone());

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

@ -15,7 +15,7 @@
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use bytes::Bytes;
use ethereum_types::H256;
use ethereum_types::{H256, U256};
use transaction::UnverifiedTransaction;
use blockchain::ImportRoute;
use std::time::Duration;
@ -141,7 +141,15 @@ pub trait ChainNotify : Send + Sync {
}
/// fires when chain broadcasts a message
fn broadcast(&self, _message_type: ChainMessageType) {}
fn broadcast(&self, _message_type: ChainMessageType) {
// does nothing by default
}
/// fires when new block is about to be imported
/// implementations should be light
fn block_pre_import(&self, _bytes: &Bytes, _hash: &H256, _difficulty: &U256) {
// does nothing by default
}
/// fires when new transactions are received from a peer
fn transactions_received(&self,

36
ethcore/src/client/client.rs
View File

@ -881,7 +881,7 @@ impl Client {
/// Flush the block import queue.
pub fn flush_queue(&self) {
self.importer.block_queue.flush();
while !self.importer.block_queue.queue_info().is_empty() {
while !self.importer.block_queue.is_empty() {
self.import_verified_blocks();
}
}
@ -1423,8 +1423,21 @@ impl ImportBlock for Client {
bail!(EthcoreErrorKind::Block(BlockError::UnknownParent(unverified.parent_hash())));
}
let raw = if self.importer.block_queue.is_empty() {
Some((
unverified.bytes.clone(),
unverified.header.hash(),
*unverified.header.difficulty(),
))
} else { None };
match self.importer.block_queue.import(unverified) {
Ok(res) => Ok(res),
Ok(hash) => {
if let Some((raw, hash, difficulty)) = raw {
self.notify(move |n| n.block_pre_import(&raw, &hash, &difficulty));
}
Ok(hash)
},
// we only care about block errors (not import errors)
Err((block, EthcoreError(EthcoreErrorKind::Block(err), _))) => {
self.importer.bad_blocks.report(block.bytes, format!("{:?}", err));
@ -1878,6 +1891,10 @@ impl BlockChainClient for Client {
self.importer.block_queue.queue_info()
}
fn is_queue_empty(&self) -> bool {
self.importer.block_queue.is_empty()
}
fn clear_queue(&self) {
self.importer.block_queue.clear();
}
@ -2288,7 +2305,11 @@ impl ScheduleInfo for Client {
impl ImportSealedBlock for Client {
fn import_sealed_block(&self, block: SealedBlock) -> EthcoreResult<H256> {
let start = Instant::now();
let raw = block.rlp_bytes();
let header = block.header().clone();
let hash = header.hash();
self.notify(|n| n.block_pre_import(&raw, &hash, header.difficulty()));
let route = {
// Do a super duper basic verification to detect potential bugs
if let Err(e) = self.engine.verify_block_basic(&header) {
@ -2306,15 +2327,14 @@ impl ImportSealedBlock for Client {
let block_data = block.rlp_bytes();
let route = self.importer.commit_block(block, &header, encoded::Block::new(block_data), self);
trace!(target: "client", "Imported sealed block #{} ({})", header.number(), header.hash());
trace!(target: "client", "Imported sealed block #{} ({})", header.number(), hash);
self.state_db.write().sync_cache(&route.enacted, &route.retracted, false);
route
};
let h = header.hash();
let route = ChainRoute::from([route].as_ref());
self.importer.miner.chain_new_blocks(
self,
&[h],
&[hash],
&[],
route.enacted(),
route.retracted(),
@ -2322,16 +2342,16 @@ impl ImportSealedBlock for Client {
);
self.notify(|notify| {
notify.new_blocks(
vec![h],
vec![hash],
vec![],
route.clone(),
vec![h],
vec![hash],
vec![],
start.elapsed(),
);
});
self.db.read().key_value().flush().expect("DB flush failed.");
Ok(h)
Ok(hash)
}
}

5
ethcore/src/client/traits.rs
View File

@ -300,6 +300,11 @@ pub trait BlockChainClient : Sync + Send + AccountData + BlockChain + CallContra
/// Get block queue information.
fn queue_info(&self) -> BlockQueueInfo;
/// Returns true if block queue is empty.
fn is_queue_empty(&self) -> bool {
self.queue_info().is_empty()
}
/// Clear block queue and abort all import activity.
fn clear_queue(&self);

7
ethcore/src/verification/queue/mod.rs
View File

@ -583,6 +583,13 @@ impl<K: Kind> VerificationQueue<K> {
result
}
/// Returns true if there is nothing currently in the queue.
/// TODO [ToDr] Optimize to avoid locking
pub fn is_empty(&self) -> bool {
let v = &self.verification;
v.unverified.lock().is_empty() && v.verifying.lock().is_empty() && v.verified.lock().is_empty()
}
/// Get queue status.
pub fn queue_info(&self) -> QueueInfo {
use std::mem::size_of;

95
ethcore/sync/src/api.rs
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::sync::Arc;
use std::sync::{Arc, mpsc, atomic};
use std::collections::{HashMap, BTreeMap};
use std::io;
use std::ops::Range;
@ -33,10 +33,10 @@ use ethcore::client::{BlockChainClient, ChainNotify, ChainRoute, ChainMessageTyp
use ethcore::snapshot::SnapshotService;
use ethcore::header::BlockNumber;
use sync_io::NetSyncIo;
use chain::{ChainSync, SyncStatus as EthSyncStatus};
use chain::{ChainSyncApi, SyncStatus as EthSyncStatus};
use std::net::{SocketAddr, AddrParseError};
use std::str::FromStr;
use parking_lot::RwLock;
use parking_lot::{RwLock, Mutex};
use chain::{ETH_PROTOCOL_VERSION_63, ETH_PROTOCOL_VERSION_62,
PAR_PROTOCOL_VERSION_1, PAR_PROTOCOL_VERSION_2, PAR_PROTOCOL_VERSION_3,
PRIVATE_TRANSACTION_PACKET, SIGNED_PRIVATE_TRANSACTION_PACKET};
@ -228,6 +228,37 @@ impl AttachedProtocol {
}
}
/// A prioritized tasks run in a specialised timer.
/// Every task should be completed within a hard deadline,
/// if it's not it's either cancelled or split into multiple tasks.
/// NOTE These tasks might not complete at all, so anything
/// that happens here should work even if the task is cancelled.
#[derive(Debug)]
pub enum PriorityTask {
/// Propagate given block
PropagateBlock {
/// When the task was initiated
started: ::std::time::Instant,
/// Raw block RLP to propagate
block: Bytes,
/// Block hash
hash: H256,
/// Blocks difficulty
difficulty: U256,
},
/// Propagate a list of transactions
PropagateTransactions(::std::time::Instant, Arc<atomic::AtomicBool>),
}
impl PriorityTask {
/// Mark the task as being processed, right after it's retrieved from the queue.
pub fn starting(&self) {
match *self {
PriorityTask::PropagateTransactions(_, ref is_ready) => is_ready.store(true, atomic::Ordering::SeqCst),
_ => {},
}
}
}
/// EthSync initialization parameters.
pub struct Params {
/// Configuration.
@ -260,6 +291,8 @@ pub struct EthSync {
subprotocol_name: [u8; 3],
/// Light subprotocol name.
light_subprotocol_name: [u8; 3],
/// Priority tasks notification channel
priority_tasks: Mutex<mpsc::Sender<PriorityTask>>,
}
fn light_params(
@ -312,13 +345,19 @@ impl EthSync {
})
};
let chain_sync = ChainSync::new(params.config, &*params.chain, params.private_tx_handler.clone());
let (priority_tasks_tx, priority_tasks_rx) = mpsc::channel();
let sync = ChainSyncApi::new(
params.config,
&*params.chain,
params.private_tx_handler.clone(),
priority_tasks_rx,
);
let service = NetworkService::new(params.network_config.clone().into_basic()?, connection_filter)?;
let sync = Arc::new(EthSync {
network: service,
eth_handler: Arc::new(SyncProtocolHandler {
sync: RwLock::new(chain_sync),
sync,
chain: params.chain,
snapshot_service: params.snapshot_service,
overlay: RwLock::new(HashMap::new()),
@ -327,26 +366,32 @@ impl EthSync {
subprotocol_name: params.config.subprotocol_name,
light_subprotocol_name: params.config.light_subprotocol_name,
attached_protos: params.attached_protos,
priority_tasks: Mutex::new(priority_tasks_tx),
});
Ok(sync)
}
/// Priority tasks producer
pub fn priority_tasks(&self) -> mpsc::Sender<PriorityTask> {
self.priority_tasks.lock().clone()
}
}
impl SyncProvider for EthSync {
/// Get sync status
fn status(&self) -> EthSyncStatus {
self.eth_handler.sync.read().status()
self.eth_handler.sync.status()
}
/// Get sync peers
fn peers(&self) -> Vec<PeerInfo> {
self.network.with_context_eval(self.subprotocol_name, |ctx| {
let peer_ids = self.network.connected_peers();
let eth_sync = self.eth_handler.sync.read();
let light_proto = self.light_proto.as_ref();
peer_ids.into_iter().filter_map(|peer_id| {
let peer_info = self.eth_handler.sync.peer_info(&peer_ids);
peer_ids.into_iter().zip(peer_info).filter_map(|(peer_id, peer_info)| {
let session_info = match ctx.session_info(peer_id) {
None => return None,
Some(info) => info,
@ -358,7 +403,7 @@ impl SyncProvider for EthSync {
capabilities: session_info.peer_capabilities.into_iter().map(|c| c.to_string()).collect(),
remote_address: session_info.remote_address,
local_address: session_info.local_address,
eth_info: eth_sync.peer_info(&peer_id),
eth_info: peer_info,
pip_info: light_proto.as_ref().and_then(|lp| lp.peer_status(peer_id)).map(Into::into),
})
}).collect()
@ -370,17 +415,16 @@ impl SyncProvider for EthSync {
}
fn transactions_stats(&self) -> BTreeMap<H256, TransactionStats> {
let sync = self.eth_handler.sync.read();
sync.transactions_stats()
.iter()
.map(|(hash, stats)| (*hash, stats.into()))
.collect()
self.eth_handler.sync.transactions_stats()
}
}
const PEERS_TIMER: TimerToken = 0;
const SYNC_TIMER: TimerToken = 1;
const TX_TIMER: TimerToken = 2;
const PRIORITY_TIMER: TimerToken = 3;
pub(crate) const PRIORITY_TIMER_INTERVAL: Duration = Duration::from_millis(250);
struct SyncProtocolHandler {
/// Shared blockchain client.
@ -388,7 +432,7 @@ struct SyncProtocolHandler {
/// Shared snapshot service.
snapshot_service: Arc<SnapshotService>,
/// Sync strategy
sync: RwLock<ChainSync>,
sync: ChainSyncApi,
/// Chain overlay used to cache data such as fork block.
overlay: RwLock<HashMap<BlockNumber, Bytes>>,
}
@ -399,11 +443,13 @@ impl NetworkProtocolHandler for SyncProtocolHandler {
io.register_timer(PEERS_TIMER, Duration::from_millis(700)).expect("Error registering peers timer");
io.register_timer(SYNC_TIMER, Duration::from_millis(1100)).expect("Error registering sync timer");
io.register_timer(TX_TIMER, Duration::from_millis(1300)).expect("Error registering transactions timer");
io.register_timer(PRIORITY_TIMER, PRIORITY_TIMER_INTERVAL).expect("Error registering peers timer");
}
}
fn read(&self, io: &NetworkContext, peer: &PeerId, packet_id: u8, data: &[u8]) {
ChainSync::dispatch_packet(&self.sync, &mut NetSyncIo::new(io, &*self.chain, &*self.snapshot_service, &self.overlay), *peer, packet_id, data);
self.sync.dispatch_packet(&mut NetSyncIo::new(io, &*self.chain, &*self.snapshot_service, &self.overlay), *peer, packet_id, data);
}
fn connected(&self, io: &NetworkContext, peer: &PeerId) {
@ -429,15 +475,26 @@ impl NetworkProtocolHandler for SyncProtocolHandler {
match timer {
PEERS_TIMER => self.sync.write().maintain_peers(&mut io),
SYNC_TIMER => self.sync.write().maintain_sync(&mut io),
TX_TIMER => {
self.sync.write().propagate_new_transactions(&mut io);
},
TX_TIMER => self.sync.write().propagate_new_transactions(&mut io),
PRIORITY_TIMER => self.sync.process_priority_queue(&mut io),
_ => warn!("Unknown timer {} triggered.", timer),
}
}
}
impl ChainNotify for EthSync {
fn block_pre_import(&self, bytes: &Bytes, hash: &H256, difficulty: &U256) {
let task = PriorityTask::PropagateBlock {
started: ::std::time::Instant::now(),
block: bytes.clone(),
hash: *hash,
difficulty: *difficulty,
};
if let Err(e) = self.priority_tasks.lock().send(task) {
warn!(target: "sync", "Unexpected error during priority block propagation: {:?}", e);
}
}
fn new_blocks(&self,
imported: Vec<H256>,
invalid: Vec<H256>,

16
ethcore/sync/src/chain/handler.rs
View File

@ -29,7 +29,6 @@ use rlp::Rlp;
use snapshot::ChunkType;
use std::cmp;
use std::mem;
use std::collections::HashSet;
use std::time::Instant;
use sync_io::SyncIo;
@ -58,7 +57,6 @@ use super::{
SNAPSHOT_DATA_PACKET,
SNAPSHOT_MANIFEST_PACKET,
STATUS_PACKET,
TRANSACTIONS_PACKET,
};
/// The Chain Sync Handler: handles responses from peers
@ -67,14 +65,9 @@ pub struct SyncHandler;
impl SyncHandler {
/// Handle incoming packet from peer
pub fn on_packet(sync: &mut ChainSync, io: &mut SyncIo, peer: PeerId, packet_id: u8, data: &[u8]) {
if packet_id != STATUS_PACKET && !sync.peers.contains_key(&peer) {
debug!(target:"sync", "Unexpected packet {} from unregistered peer: {}:{}", packet_id, peer, io.peer_info(peer));
return;
}
let rlp = Rlp::new(data);
let result = match packet_id {
STATUS_PACKET => SyncHandler::on_peer_status(sync, io, peer, &rlp),
TRANSACTIONS_PACKET => SyncHandler::on_peer_transactions(sync, io, peer, &rlp),
BLOCK_HEADERS_PACKET => SyncHandler::on_peer_block_headers(sync, io, peer, &rlp),
BLOCK_BODIES_PACKET => SyncHandler::on_peer_block_bodies(sync, io, peer, &rlp),
RECEIPTS_PACKET => SyncHandler::on_peer_block_receipts(sync, io, peer, &rlp),
@ -109,10 +102,9 @@ impl SyncHandler {
}
/// Called when peer sends us new consensus packet
pub fn on_consensus_packet(io: &mut SyncIo, peer_id: PeerId, r: &Rlp) -> Result<(), PacketDecodeError> {
pub fn on_consensus_packet(io: &mut SyncIo, peer_id: PeerId, r: &Rlp) {
trace!(target: "sync", "Received consensus packet from {:?}", peer_id);
io.chain().queue_consensus_message(r.as_raw().to_vec());
Ok(())
}
/// Called by peer when it is disconnecting
@ -578,8 +570,8 @@ impl SyncHandler {
asking_blocks: Vec::new(),
asking_hash: None,
ask_time: Instant::now(),
last_sent_transactions: HashSet::new(),
last_sent_private_transactions: HashSet::new(),
last_sent_transactions: Default::default(),
last_sent_private_transactions: Default::default(),
expired: false,
confirmation: if sync.fork_block.is_none() { ForkConfirmation::Confirmed } else { ForkConfirmation::Unconfirmed },
asking_snapshot_data: None,
@ -635,7 +627,7 @@ impl SyncHandler {
}
/// Called when peer sends us new transactions
fn on_peer_transactions(sync: &mut ChainSync, io: &mut SyncIo, peer_id: PeerId, r: &Rlp) -> Result<(), DownloaderImportError> {
pub fn on_peer_transactions(sync: &ChainSync, io: &mut SyncIo, peer_id: PeerId, r: &Rlp) -> Result<(), PacketDecodeError> {
// Accept transactions only when fully synced
if !io.is_chain_queue_empty() || (sync.state != SyncState::Idle && sync.state != SyncState::NewBlocks) {
trace!(target: "sync", "{} Ignoring transactions while syncing", peer_id);

361
ethcore/sync/src/chain/mod.rs
View File

@ -92,17 +92,17 @@ mod propagator;
mod requester;
mod supplier;
use std::sync::Arc;
use std::collections::{HashSet, HashMap};
use std::sync::{Arc, mpsc};
use std::collections::{HashSet, HashMap, BTreeMap};
use std::cmp;
use std::time::{Duration, Instant};
use hash::keccak;
use heapsize::HeapSizeOf;
use ethereum_types::{H256, U256};
use fastmap::H256FastMap;
use parking_lot::RwLock;
use fastmap::{H256FastMap, H256FastSet};
use parking_lot::{Mutex, RwLock, RwLockWriteGuard};
use bytes::Bytes;
use rlp::{Rlp, RlpStream, DecoderError};
use rlp::{RlpStream, DecoderError};
use network::{self, PeerId, PacketId};
use ethcore::header::{BlockNumber};
use ethcore::client::{BlockChainClient, BlockStatus, BlockId, BlockChainInfo, BlockQueueInfo};
@ -112,7 +112,7 @@ use super::{WarpSync, SyncConfig};
use block_sync::{BlockDownloader, DownloadAction};
use rand::Rng;
use snapshot::{Snapshot};
use api::{EthProtocolInfo as PeerInfoDigest, WARP_SYNC_PROTOCOL_ID};
use api::{EthProtocolInfo as PeerInfoDigest, WARP_SYNC_PROTOCOL_ID, PriorityTask};
use private_tx::PrivateTxHandler;
use transactions_stats::{TransactionsStats, Stats as TransactionStats};
use transaction::UnverifiedTransaction;
@ -120,7 +120,7 @@ use transaction::UnverifiedTransaction;
use self::handler::SyncHandler;
use self::propagator::SyncPropagator;
use self::requester::SyncRequester;
use self::supplier::SyncSupplier;
pub(crate) use self::supplier::SyncSupplier;
known_heap_size!(0, PeerInfo);
@ -187,6 +187,11 @@ const FORK_HEADER_TIMEOUT: Duration = Duration::from_secs(3);
const SNAPSHOT_MANIFEST_TIMEOUT: Duration = Duration::from_secs(5);
const SNAPSHOT_DATA_TIMEOUT: Duration = Duration::from_secs(120);
/// Defines how much time we have to complete priority transaction or block propagation.
/// after the deadline is reached the task is considered finished
/// (so we might sent only to some part of the peers we originally intended to send to)
const PRIORITY_TASK_DEADLINE: Duration = Duration::from_millis(100);
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
/// Sync state
pub enum SyncState {
@ -323,9 +328,9 @@ pub struct PeerInfo {
/// Request timestamp
ask_time: Instant,
/// Holds a set of transactions recently sent to this peer to avoid spamming.
last_sent_transactions: HashSet<H256>,
last_sent_transactions: H256FastSet,
/// Holds a set of private transactions and their signatures recently sent to this peer to avoid spamming.
last_sent_private_transactions: HashSet<H256>,
last_sent_private_transactions: H256FastSet,
/// Pending request is expired and result should be ignored
expired: bool,
/// Peer fork confirmation status
@ -375,6 +380,217 @@ pub mod random {
pub type RlpResponseResult = Result<Option<(PacketId, RlpStream)>, PacketDecodeError>;
pub type Peers = HashMap<PeerId, PeerInfo>;
/// Thread-safe wrapper for `ChainSync`.
///
/// NOTE always lock in order of fields declaration
pub struct ChainSyncApi {
/// Priority tasks queue
priority_tasks: Mutex<mpsc::Receiver<PriorityTask>>,
/// The rest of sync data
sync: RwLock<ChainSync>,
}
impl ChainSyncApi {
/// Creates new `ChainSyncApi`
pub fn new(
config: SyncConfig,
chain: &BlockChainClient,
private_tx_handler: Arc<PrivateTxHandler>,
priority_tasks: mpsc::Receiver<PriorityTask>,
) -> Self {
ChainSyncApi {
sync: RwLock::new(ChainSync::new(config, chain, private_tx_handler)),
priority_tasks: Mutex::new(priority_tasks),
}
}
/// Gives `write` access to underlying `ChainSync`
pub fn write(&self) -> RwLockWriteGuard<ChainSync> {
self.sync.write()
}
/// Returns info about given list of peers
pub fn peer_info(&self, ids: &[PeerId]) -> Vec<Option<PeerInfoDigest>> {
let sync = self.sync.read();
ids.iter().map(|id| sync.peer_info(id)).collect()
}
/// Returns synchonization status
pub fn status(&self) -> SyncStatus {
self.sync.read().status()
}
/// Returns transactions propagation statistics
pub fn transactions_stats(&self) -> BTreeMap<H256, ::TransactionStats> {
self.sync.read().transactions_stats()
.iter()
.map(|(hash, stats)| (*hash, stats.into()))
.collect()
}
/// Dispatch incoming requests and responses
pub fn dispatch_packet(&self, io: &mut SyncIo, peer: PeerId, packet_id: u8, data: &[u8]) {
SyncSupplier::dispatch_packet(&self.sync, io, peer, packet_id, data)
}
/// Process a priority propagation queue.
/// This task is run from a timer and should be time constrained.
/// Hence we set up a deadline for the execution and cancel the task if the deadline is exceeded.
///
/// NOTE This method should only handle stuff that can be canceled and would reach other peers
/// by other means.
pub fn process_priority_queue(&self, io: &mut SyncIo) {
fn check_deadline(deadline: Instant) -> Option<Duration> {
let now = Instant::now();
if now > deadline {
None
} else {
Some(deadline - now)
}
}
// deadline to get the task from the queue
let deadline = Instant::now() + ::api::PRIORITY_TIMER_INTERVAL;
let mut work = || {
let task = {
let tasks = self.priority_tasks.try_lock_until(deadline)?;
let left = check_deadline(deadline)?;
tasks.recv_timeout(left).ok()?
};
task.starting();
// wait for the sync lock until deadline,
// note we might drop the task here if we won't manage to acquire the lock.
let mut sync = self.sync.try_write_until(deadline)?;
// since we already have everything let's use a different deadline
// to do the rest of the job now, so that previous work is not wasted.
let deadline = Instant::now() + PRIORITY_TASK_DEADLINE;
let as_ms = move |prev| {
let dur: Duration = Instant::now() - prev;
dur.as_secs() * 1_000 + dur.subsec_millis() as u64
};
match task {
// NOTE We can't simply use existing methods,
// cause the block is not in the DB yet.
PriorityTask::PropagateBlock { started, block, hash, difficulty } => {
// try to send to peers that are on the same block as us
// (they will most likely accept the new block).
let chain_info = io.chain().chain_info();
let total_difficulty = chain_info.total_difficulty + difficulty;
let rlp = ChainSync::create_block_rlp(&block, total_difficulty);
for peers in sync.get_peers(&chain_info, PeerState::SameBlock).chunks(10) {
check_deadline(deadline)?;
for peer in peers {
SyncPropagator::send_packet(io, *peer, NEW_BLOCK_PACKET, rlp.clone());
if let Some(ref mut peer) = sync.peers.get_mut(peer) {
peer.latest_hash = hash;
}
}
}
debug!(target: "sync", "Finished block propagation, took {}ms", as_ms(started));
},
PriorityTask::PropagateTransactions(time, _) => {
SyncPropagator::propagate_new_transactions(&mut sync, io, || {
check_deadline(deadline).is_some()
});
debug!(target: "sync", "Finished transaction propagation, took {}ms", as_ms(time));
},
}
Some(())
};
// Process as many items as we can until the deadline is reached.
loop {
if work().is_none() {
return;
}
}
}
}
// Static methods
impl ChainSync {
/// creates rlp to send for the tree defined by 'from' and 'to' hashes
fn create_new_hashes_rlp(chain: &BlockChainClient, from: &H256, to: &H256) -> Option<Bytes> {
match chain.tree_route(from, to) {
Some(route) => {
let uncles = chain.find_uncles(from).unwrap_or_else(Vec::new);
match route.blocks.len() {
0 => None,
_ => {
let mut blocks = route.blocks;
blocks.extend(uncles);
let mut rlp_stream = RlpStream::new_list(blocks.len());
for block_hash in blocks {
let mut hash_rlp = RlpStream::new_list(2);
let number = chain.block_header(BlockId::Hash(block_hash.clone()))
.expect("chain.tree_route and chain.find_uncles only return hahses of blocks that are in the blockchain. qed.").number();
hash_rlp.append(&block_hash);
hash_rlp.append(&number);
rlp_stream.append_raw(hash_rlp.as_raw(), 1);
}
Some(rlp_stream.out())
}
}
},
None => None
}
}
/// creates rlp from block bytes and total difficulty
fn create_block_rlp(bytes: &Bytes, total_difficulty: U256) -> Bytes {
let mut rlp_stream = RlpStream::new_list(2);
rlp_stream.append_raw(bytes, 1);
rlp_stream.append(&total_difficulty);
rlp_stream.out()
}
/// creates latest block rlp for the given client
fn create_latest_block_rlp(chain: &BlockChainClient) -> Bytes {
Self::create_block_rlp(
&chain.block(BlockId::Hash(chain.chain_info().best_block_hash))
.expect("Best block always exists").into_inner(),
chain.chain_info().total_difficulty
)
}
/// creates given hash block rlp for the given client
fn create_new_block_rlp(chain: &BlockChainClient, hash: &H256) -> Bytes {
Self::create_block_rlp(
&chain.block(BlockId::Hash(hash.clone())).expect("Block has just been sealed; qed").into_inner(),
chain.block_total_difficulty(BlockId::Hash(hash.clone())).expect("Block has just been sealed; qed.")
)
}
fn select_random_peers(peers: &[PeerId]) -> Vec<PeerId> {
// take sqrt(x) peers
let mut peers = peers.to_vec();
let mut count = (peers.len() as f64).powf(0.5).round() as usize;
count = cmp::min(count, MAX_PEERS_PROPAGATION);
count = cmp::max(count, MIN_PEERS_PROPAGATION);
random::new().shuffle(&mut peers);
peers.truncate(count);
peers
}
fn get_init_state(warp_sync: WarpSync, chain: &BlockChainClient) -> SyncState {
let best_block = chain.chain_info().best_block_number;
match warp_sync {
WarpSync::Enabled => SyncState::WaitingPeers,
WarpSync::OnlyAndAfter(block) if block > best_block => SyncState::WaitingPeers,
_ => SyncState::Idle,
}
}
}
/// A peer query method for getting a list of peers
enum PeerState {
/// Peer is on different hash than us
Lagging,
/// Peer is on the same block as us
SameBlock
}
/// Blockchain sync handler.
/// See module documentation for more details.
pub struct ChainSync {
@ -417,10 +633,14 @@ pub struct ChainSync {
impl ChainSync {
/// Create a new instance of syncing strategy.
pub fn new(config: SyncConfig, chain: &BlockChainClient, private_tx_handler: Arc<PrivateTxHandler>) -> ChainSync {
pub fn new(
config: SyncConfig,
chain: &BlockChainClient,
private_tx_handler: Arc<PrivateTxHandler>,
) -> Self {
let chain_info = chain.chain_info();
let best_block = chain.chain_info().best_block_number;
let state = ChainSync::get_init_state(config.warp_sync, chain);
let state = Self::get_init_state(config.warp_sync, chain);
let mut sync = ChainSync {
state,
@ -445,15 +665,6 @@ impl ChainSync {
sync
}
fn get_init_state(warp_sync: WarpSync, chain: &BlockChainClient) -> SyncState {
let best_block = chain.chain_info().best_block_number;
match warp_sync {
WarpSync::Enabled => SyncState::WaitingPeers,
WarpSync::OnlyAndAfter(block) if block > best_block => SyncState::WaitingPeers,
_ => SyncState::Idle,
}
}
/// Returns synchonization status
pub fn status(&self) -> SyncStatus {
let last_imported_number = self.new_blocks.last_imported_block_number();
@ -521,7 +732,7 @@ impl ChainSync {
}
}
}
self.state = state.unwrap_or_else(|| ChainSync::get_init_state(self.warp_sync, io.chain()));
self.state = state.unwrap_or_else(|| Self::get_init_state(self.warp_sync, io.chain()));
// Reactivate peers only if some progress has been made
// since the last sync round of if starting fresh.
self.active_peers = self.peers.keys().cloned().collect();
@ -1004,67 +1215,24 @@ impl ChainSync {
}
}
/// creates rlp to send for the tree defined by 'from' and 'to' hashes
fn create_new_hashes_rlp(chain: &BlockChainClient, from: &H256, to: &H256) -> Option<Bytes> {
match chain.tree_route(from, to) {
Some(route) => {
let uncles = chain.find_uncles(from).unwrap_or_else(Vec::new);
match route.blocks.len() {
0 => None,
_ => {
let mut blocks = route.blocks;
blocks.extend(uncles);
let mut rlp_stream = RlpStream::new_list(blocks.len());
for block_hash in blocks {
let mut hash_rlp = RlpStream::new_list(2);
let number = chain.block_header(BlockId::Hash(block_hash.clone()))
.expect("chain.tree_route and chain.find_uncles only return hahses of blocks that are in the blockchain. qed.").number();
hash_rlp.append(&block_hash);
hash_rlp.append(&number);
rlp_stream.append_raw(hash_rlp.as_raw(), 1);
}
Some(rlp_stream.out())
}
}
},
None => None
}
/// returns peer ids that have different block than our chain
fn get_lagging_peers(&self, chain_info: &BlockChainInfo) -> Vec<PeerId> {
self.get_peers(chain_info, PeerState::Lagging)
}
/// creates rlp from block bytes and total difficulty
fn create_block_rlp(bytes: &Bytes, total_difficulty: U256) -> Bytes {
let mut rlp_stream = RlpStream::new_list(2);
rlp_stream.append_raw(bytes, 1);
rlp_stream.append(&total_difficulty);
rlp_stream.out()
}
/// creates latest block rlp for the given client
fn create_latest_block_rlp(chain: &BlockChainClient) -> Bytes {
ChainSync::create_block_rlp(
&chain.block(BlockId::Hash(chain.chain_info().best_block_hash))
.expect("Best block always exists").into_inner(),
chain.chain_info().total_difficulty
)
}
/// creates given hash block rlp for the given client
fn create_new_block_rlp(chain: &BlockChainClient, hash: &H256) -> Bytes {
ChainSync::create_block_rlp(
&chain.block(BlockId::Hash(hash.clone())).expect("Block has just been sealed; qed").into_inner(),
chain.block_total_difficulty(BlockId::Hash(hash.clone())).expect("Block has just been sealed; qed.")
)
}
/// returns peer ids that have different blocks than our chain
fn get_lagging_peers(&mut self, chain_info: &BlockChainInfo) -> Vec<PeerId> {
/// returns peer ids that have different or the same blocks than our chain
fn get_peers(&self, chain_info: &BlockChainInfo, peers: PeerState) -> Vec<PeerId> {
let latest_hash = chain_info.best_block_hash;
self
.peers
.iter_mut()
.iter()
.filter_map(|(&id, ref mut peer_info)| {
trace!(target: "sync", "Checking peer our best {} their best {}", latest_hash, peer_info.latest_hash);
if peer_info.latest_hash != latest_hash {
let matches = match peers {
PeerState::Lagging => peer_info.latest_hash != latest_hash,
PeerState::SameBlock => peer_info.latest_hash == latest_hash,
};
if matches {
Some(id)
} else {
None
@ -1073,17 +1241,6 @@ impl ChainSync {
.collect::<Vec<_>>()
}
fn select_random_peers(peers: &[PeerId]) -> Vec<PeerId> {
// take sqrt(x) peers
let mut peers = peers.to_vec();
let mut count = (peers.len() as f64).powf(0.5).round() as usize;
count = cmp::min(count, MAX_PEERS_PROPAGATION);
count = cmp::max(count, MIN_PEERS_PROPAGATION);
random::new().shuffle(&mut peers);
peers.truncate(count);
peers
}
fn get_consensus_peers(&self) -> Vec<PeerId> {
self.peers.iter().filter_map(|(id, p)| if p.protocol_version >= PAR_PROTOCOL_VERSION_2.0 { Some(*id) } else { None }).collect()
}
@ -1132,21 +1289,10 @@ impl ChainSync {
}
}
/// Dispatch incoming requests and responses
pub fn dispatch_packet(sync: &RwLock<ChainSync>, io: &mut SyncIo, peer: PeerId, packet_id: u8, data: &[u8]) {
SyncSupplier::dispatch_packet(sync, io, peer, packet_id, data)
}
pub fn on_packet(&mut self, io: &mut SyncIo, peer: PeerId, packet_id: u8, data: &[u8]) {
debug!(target: "sync", "{} -> Dispatching packet: {}", peer, packet_id);
SyncHandler::on_packet(self, io, peer, packet_id, data);
}
/// Called when peer sends us new consensus packet
pub fn on_consensus_packet(io: &mut SyncIo, peer_id: PeerId, r: &Rlp) -> Result<(), PacketDecodeError> {
SyncHandler::on_consensus_packet(io, peer_id, r)
}
/// Called by peer when it is disconnecting
pub fn on_peer_aborting(&mut self, io: &mut SyncIo, peer: PeerId) {
SyncHandler::on_peer_aborting(self, io, peer);
@ -1158,8 +1304,16 @@ impl ChainSync {
}
/// propagates new transactions to all peers
pub fn propagate_new_transactions(&mut self, io: &mut SyncIo) -> usize {
SyncPropagator::propagate_new_transactions(self, io)
pub fn propagate_new_transactions(&mut self, io: &mut SyncIo) {
let deadline = Instant::now() + Duration::from_millis(500);
SyncPropagator::propagate_new_transactions(self, io, || {
if deadline > Instant::now() {
true
} else {
debug!(target: "sync", "Wasn't able to finish transaction propagation within a deadline.");
false
}
});
}
/// Broadcast consensus message to peers.
@ -1175,7 +1329,7 @@ impl ChainSync {
#[cfg(test)]
pub mod tests {
use std::collections::{HashSet, VecDeque};
use std::collections::{VecDeque};
use ethkey;
use network::PeerId;
use tests::helpers::{TestIo};
@ -1291,8 +1445,8 @@ pub mod tests {
asking_blocks: Vec::new(),
asking_hash: None,
ask_time: Instant::now(),
last_sent_transactions: HashSet::new(),
last_sent_private_transactions: HashSet::new(),
last_sent_transactions: Default::default(),
last_sent_private_transactions: Default::default(),
expired: false,
confirmation: super::ForkConfirmation::Confirmed,
snapshot_number: None,
@ -1307,7 +1461,7 @@ pub mod tests {
fn finds_lagging_peers() {
let mut client = TestBlockChainClient::new();
client.add_blocks(100, EachBlockWith::Uncle);
let mut sync = dummy_sync_with_peer(client.block_hash_delta_minus(10), &client);
let sync = dummy_sync_with_peer(client.block_hash_delta_minus(10), &client);
let chain_info = client.chain_info();
let lagging_peers = sync.get_lagging_peers(&chain_info);
@ -1447,3 +1601,4 @@ pub mod tests {
assert_eq!(status.status.transaction_count, 0);
}
}

275
ethcore/sync/src/chain/propagator.rs
View File

@ -18,6 +18,7 @@ use bytes::Bytes;
use ethereum_types::H256;
use ethcore::client::BlockChainInfo;
use ethcore::header::BlockNumber;
use fastmap::H256FastSet;
use network::{PeerId, PacketId};
use rand::Rng;
use rlp::{Encodable, RlpStream};
@ -69,49 +70,51 @@ impl SyncPropagator {
/// propagates latest block to a set of peers
pub fn propagate_blocks(sync: &mut ChainSync, chain_info: &BlockChainInfo, io: &mut SyncIo, blocks: &[H256], peers: &[PeerId]) -> usize {
trace!(target: "sync", "Sending NewBlocks to {:?}", peers);
let mut sent = 0;
for peer_id in peers {
if blocks.is_empty() {
let rlp = ChainSync::create_latest_block_rlp(io.chain());
SyncPropagator::send_packet(io, *peer_id, NEW_BLOCK_PACKET, rlp);
} else {
for h in blocks {
let rlp = ChainSync::create_new_block_rlp(io.chain(), h);
SyncPropagator::send_packet(io, *peer_id, NEW_BLOCK_PACKET, rlp);
let sent = peers.len();
let mut send_packet = |io: &mut SyncIo, rlp: Bytes| {
for peer_id in peers {
SyncPropagator::send_packet(io, *peer_id, NEW_BLOCK_PACKET, rlp.clone());
if let Some(ref mut peer) = sync.peers.get_mut(peer_id) {
peer.latest_hash = chain_info.best_block_hash.clone();
}
}
if let Some(ref mut peer) = sync.peers.get_mut(peer_id) {
peer.latest_hash = chain_info.best_block_hash.clone();
};
if blocks.is_empty() {
let rlp = ChainSync::create_latest_block_rlp(io.chain());
send_packet(io, rlp);
} else {
for h in blocks {
let rlp = ChainSync::create_new_block_rlp(io.chain(), h);
send_packet(io, rlp);
}
sent += 1;
}
sent
}
/// propagates new known hashes to all peers
pub fn propagate_new_hashes(sync: &mut ChainSync, chain_info: &BlockChainInfo, io: &mut SyncIo, peers: &[PeerId]) -> usize {
trace!(target: "sync", "Sending NewHashes to {:?}", peers);
let mut sent = 0;
let last_parent = *io.chain().best_block_header().parent_hash();
let best_block_hash = chain_info.best_block_hash;
let rlp = match ChainSync::create_new_hashes_rlp(io.chain(), &last_parent, &best_block_hash) {
Some(rlp) => rlp,
None => return 0
};
let sent = peers.len();
for peer_id in peers {
sent += match ChainSync::create_new_hashes_rlp(io.chain(), &last_parent, &chain_info.best_block_hash) {
Some(rlp) => {
{
if let Some(ref mut peer) = sync.peers.get_mut(peer_id) {
peer.latest_hash = chain_info.best_block_hash.clone();
}
}
SyncPropagator::send_packet(io, *peer_id, NEW_BLOCK_HASHES_PACKET, rlp);
1
},
None => 0
if let Some(ref mut peer) = sync.peers.get_mut(peer_id) {
peer.latest_hash = best_block_hash;
}
SyncPropagator::send_packet(io, *peer_id, NEW_BLOCK_HASHES_PACKET, rlp.clone());
}
sent
}
/// propagates new transactions to all peers
pub fn propagate_new_transactions(sync: &mut ChainSync, io: &mut SyncIo) -> usize {
pub fn propagate_new_transactions<F: FnMut() -> bool>(sync: &mut ChainSync, io: &mut SyncIo, mut should_continue: F) -> usize {
// Early out if nobody to send to.
if sync.peers.is_empty() {
return 0;
@ -122,6 +125,10 @@ impl SyncPropagator {
return 0;
}
if !should_continue() {
return 0;
}
let (transactions, service_transactions): (Vec<_>, Vec<_>) = transactions.iter()
.map(|tx| tx.signed())
.partition(|tx| !tx.gas_price.is_zero());
@ -130,24 +137,34 @@ impl SyncPropagator {
let mut affected_peers = HashSet::new();
if !transactions.is_empty() {
let peers = SyncPropagator::select_peers_for_transactions(sync, |_| true);
affected_peers = SyncPropagator::propagate_transactions_to_peers(sync, io, peers, transactions);
affected_peers = SyncPropagator::propagate_transactions_to_peers(
sync, io, peers, transactions, &mut should_continue,
);
}
// most of times service_transactions will be empty
// => there's no need to merge packets
if !service_transactions.is_empty() {
let service_transactions_peers = SyncPropagator::select_peers_for_transactions(sync, |peer_id| accepts_service_transaction(&io.peer_info(*peer_id)));
let service_transactions_affected_peers = SyncPropagator::propagate_transactions_to_peers(sync, io, service_transactions_peers, service_transactions);
let service_transactions_affected_peers = SyncPropagator::propagate_transactions_to_peers(
sync, io, service_transactions_peers, service_transactions, &mut should_continue
);
affected_peers.extend(&service_transactions_affected_peers);
}
affected_peers.len()
}
fn propagate_transactions_to_peers(sync: &mut ChainSync, io: &mut SyncIo, peers: Vec<PeerId>, transactions: Vec<&SignedTransaction>) -> HashSet<PeerId> {
fn propagate_transactions_to_peers<F: FnMut() -> bool>(
sync: &mut ChainSync,
io: &mut SyncIo,
peers: Vec<PeerId>,
transactions: Vec<&SignedTransaction>,
mut should_continue: F,
) -> HashSet<PeerId> {
let all_transactions_hashes = transactions.iter()
.map(|tx| tx.hash())
.collect::<HashSet<H256>>();
.collect::<H256FastSet>();
let all_transactions_rlp = {
let mut packet = RlpStream::new_list(transactions.len());
for tx in &transactions { packet.append(&**tx); }
@ -157,102 +174,104 @@ impl SyncPropagator {
// Clear old transactions from stats
sync.transactions_stats.retain(&all_transactions_hashes);
// sqrt(x)/x scaled to max u32
let block_number = io.chain().chain_info().best_block_number;
let lucky_peers = {
peers.into_iter()
.filter_map(|peer_id| {
let stats = &mut sync.transactions_stats;
let peer_info = sync.peers.get_mut(&peer_id)
.expect("peer_id is form peers; peers is result of select_peers_for_transactions; select_peers_for_transactions selects peers from self.peers; qed");
// Send all transactions
if peer_info.last_sent_transactions.is_empty() {
// update stats
for hash in &all_transactions_hashes {
let id = io.peer_session_info(peer_id).and_then(|info| info.id);
stats.propagated(hash, id, block_number);
}
peer_info.last_sent_transactions = all_transactions_hashes.clone();
return Some((peer_id, all_transactions_hashes.len(), all_transactions_rlp.clone()));
}
// Get hashes of all transactions to send to this peer
let to_send = all_transactions_hashes.difference(&peer_info.last_sent_transactions)
.cloned()
.collect::<HashSet<_>>();
if to_send.is_empty() {
return None;
}
// Construct RLP
let (packet, to_send) = {
let mut to_send = to_send;
let mut packet = RlpStream::new();
packet.begin_unbounded_list();
let mut pushed = 0;
for tx in &transactions {
let hash = tx.hash();
if to_send.contains(&hash) {
let mut transaction = RlpStream::new();
tx.rlp_append(&mut transaction);
let appended = packet.append_raw_checked(&transaction.drain(), 1, MAX_TRANSACTION_PACKET_SIZE);
if !appended {
// Maximal packet size reached just proceed with sending
debug!(target: "sync", "Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
to_send = to_send.into_iter().take(pushed).collect();
break;
}
pushed += 1;
}
}
packet.complete_unbounded_list();
(packet, to_send)
};
// Update stats
let id = io.peer_session_info(peer_id).and_then(|info| info.id);
for hash in &to_send {
// update stats
stats.propagated(hash, id, block_number);
}
peer_info.last_sent_transactions = all_transactions_hashes
.intersection(&peer_info.last_sent_transactions)
.chain(&to_send)
.cloned()
.collect();
Some((peer_id, to_send.len(), packet.out()))
})
.collect::<Vec<_>>()
let send_packet = |io: &mut SyncIo, peer_id: PeerId, sent: usize, rlp: Bytes| {
let size = rlp.len();
SyncPropagator::send_packet(io, peer_id, TRANSACTIONS_PACKET, rlp);
trace!(target: "sync", "{:02} <- Transactions ({} entries; {} bytes)", peer_id, sent, size);
};
// Send RLPs
let mut peers = HashSet::new();
if lucky_peers.len() > 0 {
let mut max_sent = 0;
let lucky_peers_len = lucky_peers.len();
for (peer_id, sent, rlp) in lucky_peers {
peers.insert(peer_id);
let size = rlp.len();
SyncPropagator::send_packet(io, peer_id, TRANSACTIONS_PACKET, rlp);
trace!(target: "sync", "{:02} <- Transactions ({} entries; {} bytes)", peer_id, sent, size);
max_sent = cmp::max(max_sent, sent);
let block_number = io.chain().chain_info().best_block_number;
let mut sent_to_peers = HashSet::new();
let mut max_sent = 0;
// for every peer construct and send transactions packet
for peer_id in peers {
if !should_continue() {
debug!(target: "sync", "Sent up to {} transactions to {} peers.", max_sent, sent_to_peers.len());
return sent_to_peers;
}
debug!(target: "sync", "Sent up to {} transactions to {} peers.", max_sent, lucky_peers_len);
let stats = &mut sync.transactions_stats;
let peer_info = sync.peers.get_mut(&peer_id)
.expect("peer_id is form peers; peers is result of select_peers_for_transactions; select_peers_for_transactions selects peers from self.peers; qed");
// Send all transactions, if the peer doesn't know about anything
if peer_info.last_sent_transactions.is_empty() {
// update stats
for hash in &all_transactions_hashes {
let id = io.peer_session_info(peer_id).and_then(|info| info.id);
stats.propagated(hash, id, block_number);
}
peer_info.last_sent_transactions = all_transactions_hashes.clone();
send_packet(io, peer_id, all_transactions_hashes.len(), all_transactions_rlp.clone());
sent_to_peers.insert(peer_id);
max_sent = cmp::max(max_sent, all_transactions_hashes.len());
continue;
}
// Get hashes of all transactions to send to this peer
let to_send = all_transactions_hashes.difference(&peer_info.last_sent_transactions)
.cloned()
.collect::<HashSet<_>>();
if to_send.is_empty() {
continue;
}
// Construct RLP
let (packet, to_send) = {
let mut to_send = to_send;
let mut packet = RlpStream::new();
packet.begin_unbounded_list();
let mut pushed = 0;
for tx in &transactions {
let hash = tx.hash();
if to_send.contains(&hash) {
let mut transaction = RlpStream::new();
tx.rlp_append(&mut transaction);
let appended = packet.append_raw_checked(&transaction.drain(), 1, MAX_TRANSACTION_PACKET_SIZE);
if !appended {
// Maximal packet size reached just proceed with sending
debug!(target: "sync", "Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
to_send = to_send.into_iter().take(pushed).collect();
break;
}
pushed += 1;
}
}
packet.complete_unbounded_list();
(packet, to_send)
};
// Update stats
let id = io.peer_session_info(peer_id).and_then(|info| info.id);
for hash in &to_send {
// update stats
stats.propagated(hash, id, block_number);
}
peer_info.last_sent_transactions = all_transactions_hashes
.intersection(&peer_info.last_sent_transactions)
.chain(&to_send)
.cloned()
.collect();
send_packet(io, peer_id, to_send.len(), packet.out());
sent_to_peers.insert(peer_id);
max_sent = cmp::max(max_sent, to_send.len());
}
peers
debug!(target: "sync", "Sent up to {} transactions to {} peers.", max_sent, sent_to_peers.len());
sent_to_peers
}
pub fn propagate_latest_blocks(sync: &mut ChainSync, io: &mut SyncIo, sealed: &[H256]) {
let chain_info = io.chain().chain_info();
if (((chain_info.best_block_number as i64) - (sync.last_sent_block_number as i64)).abs() as BlockNumber) < MAX_PEER_LAG_PROPAGATION {
let mut peers = sync.get_lagging_peers(&chain_info);
let peers = sync.get_lagging_peers(&chain_info);
if sealed.is_empty() {
let hashes = SyncPropagator::propagate_new_hashes(sync, &chain_info, io, &peers);
peers = ChainSync::select_random_peers(&peers);
let peers = ChainSync::select_random_peers(&peers);
let blocks = SyncPropagator::propagate_blocks(sync, &chain_info, io, sealed, &peers);
if blocks != 0 || hashes != 0 {
trace!(target: "sync", "Sent latest {} blocks and {} hashes to peers.", blocks, hashes);
@ -318,7 +337,7 @@ impl SyncPropagator {
}
/// Generic packet sender
fn send_packet(sync: &mut SyncIo, peer_id: PeerId, packet_id: PacketId, packet: Bytes) {
pub fn send_packet(sync: &mut SyncIo, peer_id: PeerId, packet_id: PacketId, packet: Bytes) {
if let Err(e) = sync.send(peer_id, packet_id, packet) {
debug!(target:"sync", "Error sending packet: {:?}", e);
sync.disconnect_peer(peer_id);
@ -419,8 +438,8 @@ mod tests {
asking_blocks: Vec::new(),
asking_hash: None,
ask_time: Instant::now(),
last_sent_transactions: HashSet::new(),
last_sent_private_transactions: HashSet::new(),
last_sent_transactions: Default::default(),
last_sent_private_transactions: Default::default(),
expired: false,
confirmation: ForkConfirmation::Confirmed,
snapshot_number: None,
@ -447,13 +466,13 @@ mod tests {
let queue = RwLock::new(VecDeque::new());
let ss = TestSnapshotService::new();
let mut io = TestIo::new(&mut client, &ss, &queue, None);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// Try to propagate same transactions for the second time
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// Even after new block transactions should not be propagated twice
sync.chain_new_blocks(&mut io, &[], &[], &[], &[], &[], &[]);
// Try to propagate same transactions for the third time
let peer_count3 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count3 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// 1 message should be send
assert_eq!(1, io.packets.len());
@ -474,7 +493,7 @@ mod tests {
let queue = RwLock::new(VecDeque::new());
let ss = TestSnapshotService::new();
let mut io = TestIo::new(&mut client, &ss, &queue, None);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
io.chain.insert_transaction_to_queue();
// New block import should not trigger propagation.
// (we only propagate on timeout)
@ -498,10 +517,10 @@ mod tests {
let queue = RwLock::new(VecDeque::new());
let ss = TestSnapshotService::new();
let mut io = TestIo::new(&mut client, &ss, &queue, None);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
sync.chain_new_blocks(&mut io, &[], &[], &[], &[], &[], &[]);
// Try to propagate same transactions for the second time
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
assert_eq!(0, io.packets.len());
assert_eq!(0, peer_count);
@ -519,7 +538,7 @@ mod tests {
// should sent some
{
let mut io = TestIo::new(&mut client, &ss, &queue, None);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
assert_eq!(1, io.packets.len());
assert_eq!(1, peer_count);
}
@ -528,9 +547,9 @@ mod tests {
let (peer_count2, peer_count3) = {
let mut io = TestIo::new(&mut client, &ss, &queue, None);
// Propagate new transactions
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count2 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// And now the peer should have all transactions
let peer_count3 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
let peer_count3 = SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
(peer_count2, peer_count3)
};
@ -553,7 +572,7 @@ mod tests {
let queue = RwLock::new(VecDeque::new());
let ss = TestSnapshotService::new();
let mut io = TestIo::new(&mut client, &ss, &queue, None);
SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
let stats = sync.transactions_stats();
assert_eq!(stats.len(), 1, "Should maintain stats for single transaction.")
@ -583,7 +602,7 @@ mod tests {
io.peers_info.insert(4, "Parity-Ethereum/v2.7.3-ABCDEFGH".to_owned());
// and new service transaction is propagated to peers
SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// peer#2 && peer#4 are receiving service transaction
assert!(io.packets.iter().any(|p| p.packet_id == 0x02 && p.recipient == 2)); // TRANSACTIONS_PACKET
@ -607,7 +626,7 @@ mod tests {
io.peers_info.insert(1, "Parity-Ethereum/v2.6".to_owned());
// and service + non-service transactions are propagated to peers
SyncPropagator::propagate_new_transactions(&mut sync, &mut io);
SyncPropagator::propagate_new_transactions(&mut sync, &mut io, || true);
// two separate packets for peer are queued:
// 1) with non-service-transaction

42
ethcore/sync/src/chain/supplier.rs
View File

@ -27,6 +27,7 @@ use sync_io::SyncIo;
use super::{
ChainSync,
SyncHandler,
RlpResponseResult,
PacketDecodeError,
BLOCK_BODIES_PACKET,
@ -47,6 +48,8 @@ use super::{
RECEIPTS_PACKET,
SNAPSHOT_DATA_PACKET,
SNAPSHOT_MANIFEST_PACKET,
STATUS_PACKET,
TRANSACTIONS_PACKET,
};
/// The Chain Sync Supplier: answers requests from peers with available data
@ -56,6 +59,7 @@ impl SyncSupplier {
/// Dispatch incoming requests and responses
pub fn dispatch_packet(sync: &RwLock<ChainSync>, io: &mut SyncIo, peer: PeerId, packet_id: u8, data: &[u8]) {
let rlp = Rlp::new(data);
let result = match packet_id {
GET_BLOCK_BODIES_PACKET => SyncSupplier::return_rlp(io, &rlp, peer,
SyncSupplier::return_block_bodies,
@ -80,9 +84,39 @@ impl SyncSupplier {
GET_SNAPSHOT_DATA_PACKET => SyncSupplier::return_rlp(io, &rlp, peer,
SyncSupplier::return_snapshot_data,
|e| format!("Error sending snapshot data: {:?}", e)),
CONSENSUS_DATA_PACKET => ChainSync::on_consensus_packet(io, peer, &rlp),
_ => {
STATUS_PACKET => {
sync.write().on_packet(io, peer, packet_id, data);
Ok(())
},
// Packets that require the peer to be confirmed
_ => {
if !sync.read().peers.contains_key(&peer) {
debug!(target:"sync", "Unexpected packet {} from unregistered peer: {}:{}", packet_id, peer, io.peer_info(peer));
return;
}
debug!(target: "sync", "{} -> Dispatching packet: {}", peer, packet_id);
match packet_id {
CONSENSUS_DATA_PACKET => {
SyncHandler::on_consensus_packet(io, peer, &rlp)
},
TRANSACTIONS_PACKET => {
let res = {
let sync_ro = sync.read();
SyncHandler::on_peer_transactions(&*sync_ro, io, peer, &rlp)
};
if res.is_err() {
// peer sent invalid data, disconnect.
io.disable_peer(peer);
sync.write().deactivate_peer(io, peer);
}
},
_ => {
sync.write().on_packet(io, peer, packet_id, data);
}
}
Ok(())
}
};
@ -404,7 +438,7 @@ mod test {
io.sender = Some(2usize);
ChainSync::dispatch_packet(&RwLock::new(sync), &mut io, 0usize, GET_NODE_DATA_PACKET, &node_request);
SyncSupplier::dispatch_packet(&RwLock::new(sync), &mut io, 0usize, GET_NODE_DATA_PACKET, &node_request);
assert_eq!(1, io.packets.len());
}
@ -446,7 +480,7 @@ mod test {
assert_eq!(603, rlp_result.unwrap().1.out().len());
io.sender = Some(2usize);
ChainSync::dispatch_packet(&RwLock::new(sync), &mut io, 0usize, GET_RECEIPTS_PACKET, &receipts_request);
SyncSupplier::dispatch_packet(&RwLock::new(sync), &mut io, 0usize, GET_RECEIPTS_PACKET, &receipts_request);
assert_eq!(1, io.packets.len());
}
}

2
ethcore/sync/src/sync_io.rs
View File

@ -52,7 +52,7 @@ pub trait SyncIo {
fn protocol_version(&self, protocol: &ProtocolId, peer_id: PeerId) -> u8;
/// Returns if the chain block queue empty
fn is_chain_queue_empty(&self) -> bool {
self.chain().queue_info().is_empty()
self.chain().is_queue_empty()
}
/// Check if the session is expired
fn is_expired(&self) -> bool;

4
ethcore/sync/src/tests/helpers.rs
View File

@ -33,7 +33,7 @@ use ethcore::test_helpers;
use sync_io::SyncIo;
use io::{IoChannel, IoContext, IoHandler};
use api::WARP_SYNC_PROTOCOL_ID;
use chain::{ChainSync, ETH_PROTOCOL_VERSION_63, PAR_PROTOCOL_VERSION_3, PRIVATE_TRANSACTION_PACKET, SIGNED_PRIVATE_TRANSACTION_PACKET};
use chain::{ChainSync, ETH_PROTOCOL_VERSION_63, PAR_PROTOCOL_VERSION_3, PRIVATE_TRANSACTION_PACKET, SIGNED_PRIVATE_TRANSACTION_PACKET, SyncSupplier};
use SyncConfig;
use private_tx::SimplePrivateTxHandler;
@ -271,7 +271,7 @@ impl<C: FlushingBlockChainClient> Peer for EthPeer<C> {
fn receive_message(&self, from: PeerId, msg: TestPacket) -> HashSet<PeerId> {
let mut io = TestIo::new(&*self.chain, &self.snapshot_service, &self.queue, Some(from));
ChainSync::dispatch_packet(&self.sync, &mut io, from, msg.packet_id, &msg.data);
SyncSupplier::dispatch_packet(&self.sync, &mut io, from, msg.packet_id, &msg.data);
self.chain.flush();
io.to_disconnect.clone()
}

3
ethcore/sync/src/transactions_stats.rs
View File

@ -15,6 +15,7 @@
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use api::TransactionStats;
use std::hash::BuildHasher;
use std::collections::{HashSet, HashMap};
use ethereum_types::{H256, H512};
use fastmap::H256FastMap;
@ -74,7 +75,7 @@ impl TransactionsStats {
}
/// Retains only transactions present in given `HashSet`.
pub fn retain(&mut self, hashes: &HashSet<H256>) {
pub fn retain<S: BuildHasher>(&mut self, hashes: &HashSet<H256, S>) {
let to_remove = self.pending_transactions.keys()
.filter(|hash| !hashes.contains(hash))
.cloned()

4
miner/src/pool/listener.rs
View File

@ -50,6 +50,10 @@ impl Notifier {
/// Notify listeners about all currently pending transactions.
pub fn notify(&mut self) {
if self.pending.is_empty() {
return;
}
for l in &self.listeners {
(l)(&self.pending);
}

34
parity/modules.rs
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::sync::Arc;
use std::sync::{Arc, mpsc};
use ethcore::client::BlockChainClient;
use sync::{self, AttachedProtocol, SyncConfig, NetworkConfiguration, Params, ConnectionFilter};
@ -25,12 +25,17 @@ pub use sync::{EthSync, SyncProvider, ManageNetwork, PrivateTxHandler};
pub use ethcore::client::ChainNotify;
use ethcore_logger::Config as LogConfig;
pub type SyncModules = (Arc<SyncProvider>, Arc<ManageNetwork>, Arc<ChainNotify>);
pub type SyncModules = (
Arc<SyncProvider>,
Arc<ManageNetwork>,
Arc<ChainNotify>,
mpsc::Sender<sync::PriorityTask>,
);
pub fn sync(
sync_cfg: SyncConfig,
net_cfg: NetworkConfiguration,
client: Arc<BlockChainClient>,
config: SyncConfig,
network_config: NetworkConfiguration,
chain: Arc<BlockChainClient>,
snapshot_service: Arc<SnapshotService>,
private_tx_handler: Arc<PrivateTxHandler>,
provider: Arc<Provider>,
@ -39,15 +44,20 @@ pub fn sync(
connection_filter: Option<Arc<ConnectionFilter>>,
) -> Result<SyncModules, sync::Error> {
let eth_sync = EthSync::new(Params {
config: sync_cfg,
chain: client,
provider: provider,
snapshot_service: snapshot_service,
config,
chain,
provider,
snapshot_service,
private_tx_handler,
network_config: net_cfg,
attached_protos: attached_protos,
network_config,
attached_protos,
},
connection_filter)?;
Ok((eth_sync.clone() as Arc<SyncProvider>, eth_sync.clone() as Arc<ManageNetwork>, eth_sync.clone() as Arc<ChainNotify>))
Ok((
eth_sync.clone() as Arc<SyncProvider>,
eth_sync.clone() as Arc<ManageNetwork>,
eth_sync.clone() as Arc<ChainNotify>,
eth_sync.priority_tasks()
))
}

19
parity/run.rs
View File

@ -15,7 +15,7 @@
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::any::Any;
use std::sync::{Arc, Weak};
use std::sync::{Arc, Weak, atomic};
use std::time::{Duration, Instant};
use std::thread;
@ -480,7 +480,6 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
cmd.gas_pricer_conf.to_gas_pricer(fetch.clone(), runtime.executor()),
&spec,
Some(account_provider.clone()),
));
miner.set_author(cmd.miner_extras.author, None).expect("Fails only if password is Some; password is None; qed");
miner.set_gas_range_target(cmd.miner_extras.gas_range_target);
@ -637,7 +636,7 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
};
// create sync object
let (sync_provider, manage_network, chain_notify) = modules::sync(
let (sync_provider, manage_network, chain_notify, priority_tasks) = modules::sync(
sync_config,
net_conf.clone().into(),
client.clone(),
@ -651,6 +650,18 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
service.add_notify(chain_notify.clone());
// Propagate transactions as soon as they are imported.
let tx = ::parking_lot::Mutex::new(priority_tasks);
let is_ready = Arc::new(atomic::AtomicBool::new(true));
miner.add_transactions_listener(Box::new(move |_hashes| {
// we want to have only one PendingTransactions task in the queue.
if is_ready.compare_and_swap(true, false, atomic::Ordering::SeqCst) {
let task = ::sync::PriorityTask::PropagateTransactions(Instant::now(), is_ready.clone());
// we ignore error cause it means that we are closing
let _ = tx.lock().send(task);
}
}));
// provider not added to a notification center is effectively disabled
// TODO [debris] refactor it later on
if cmd.private_tx_enabled {
@ -737,7 +748,7 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
let secretstore_deps = secretstore::Dependencies {
client: client.clone(),
sync: sync_provider.clone(),
miner: miner,
miner: miner.clone(),
account_provider: account_provider,
accounts_passwords: &passwords,
};

4
util/fastmap/src/lib.rs
View File

@ -21,11 +21,13 @@ extern crate plain_hasher;
use ethereum_types::H256;
use std::hash;
use std::collections::HashMap;
use std::collections::{HashMap, HashSet};
use plain_hasher::PlainHasher;
/// Specialized version of `HashMap` with H256 keys and fast hashing function.
pub type H256FastMap<T> = HashMap<H256, T, hash::BuildHasherDefault<PlainHasher>>;
/// Specialized version of HashSet with H256 values and fast hashing function.
pub type H256FastSet = HashSet<H256, hash::BuildHasherDefault<PlainHasher>>;
#[cfg(test)]
mod tests {