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use std::collections::{VecDeque, HashMap, HashSet};
use std::collections::hash_map::Entry;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
use std::thread;
use parking_lot::{Mutex, Condvar};
use chain::IndexedTransaction;
use message::{types, common};
use primitives::hash::H256;
use synchronization_executor::{Task, TaskExecutor};
use types::{PeerIndex, RequestId, BlockHeight, StorageRef, ExecutorRef, MemoryPoolRef, PeersRef};
use utils::KnownHashType;
#[derive(Debug, PartialEq)]
pub enum ServerTask {
GetData(PeerIndex, types::GetData),
ReversedGetData(PeerIndex, types::GetData, types::NotFound),
GetBlocks(PeerIndex, types::GetBlocks),
GetHeaders(PeerIndex, types::GetHeaders, RequestId),
Mempool(PeerIndex),
GetBlockTxn(PeerIndex, types::GetBlockTxn),
}
pub trait Server : Send + Sync + 'static {
fn execute(&self, task: ServerTask);
fn on_disconnect(&self, peer_index: PeerIndex);
}
pub struct ServerImpl {
queue_ready: Arc<Condvar>,
queue: Arc<Mutex<ServerQueue>>,
worker_thread: Option<thread::JoinHandle<()>>,
}
struct ServerQueue {
is_stopping: AtomicBool,
queue_ready: Arc<Condvar>,
peers_queue: VecDeque<usize>,
tasks_queue: HashMap<usize, VecDeque<ServerTask>>,
}
struct ServerTaskExecutor<T> where T: TaskExecutor {
peers: PeersRef,
executor: ExecutorRef<T>,
storage: StorageRef,
memory_pool: MemoryPoolRef,
}
impl Server for ServerImpl {
fn execute(&self, task: ServerTask) {
self.queue.lock().add_task(task);
}
fn on_disconnect(&self, peer_index: PeerIndex) {
self.queue.lock().remove_peer_tasks(peer_index);
}
}
impl ServerTask {
pub fn peer_index(&self) -> PeerIndex {
match *self {
ServerTask::GetData(peer_index, _)
| ServerTask::ReversedGetData(peer_index, _, _)
| ServerTask::GetBlocks(peer_index, _)
| ServerTask::GetHeaders(peer_index, _, _)
| ServerTask::Mempool(peer_index)
| ServerTask::GetBlockTxn(peer_index, _) => peer_index,
}
}
}
impl ServerImpl {
pub fn new<T: TaskExecutor>(peers: PeersRef, storage: StorageRef, memory_pool: MemoryPoolRef, executor: Arc<T>) -> Self {
let executor = ServerTaskExecutor::new(peers, storage, memory_pool, executor);
let queue_ready = Arc::new(Condvar::new());
let queue = Arc::new(Mutex::new(ServerQueue::new(queue_ready.clone())));
let mut server = ServerImpl {
queue_ready: queue_ready.clone(),
queue: queue.clone(),
worker_thread: None,
};
server.worker_thread = Some(thread::spawn(move || {
ServerImpl::server_worker(queue_ready, queue, executor);
}));
server
}
fn server_worker<T: TaskExecutor>(queue_ready: Arc<Condvar>, queue: Arc<Mutex<ServerQueue>>, executor: ServerTaskExecutor<T>) {
loop {
let task = {
let mut queue = queue.lock();
if queue.is_stopping.load(Ordering::SeqCst) {
break
}
queue.next_task()
.or_else(|| {
queue_ready.wait(&mut queue);
queue.next_task()
})
};
if let Some(task) = task {
if let Some(task) = executor.execute(task) {
queue.lock().add_task_front(task);
}
}
}
}
}
impl Drop for ServerImpl {
fn drop(&mut self) {
if let Some(join_handle) = self.worker_thread.take() {
self.queue.lock().is_stopping.store(true, Ordering::SeqCst);
self.queue_ready.notify_one();
join_handle.join().expect("Clean shutdown.");
}
}
}
impl ServerQueue {
pub fn new(queue_ready: Arc<Condvar>) -> Self {
ServerQueue {
is_stopping: AtomicBool::new(false),
queue_ready: queue_ready,
peers_queue: VecDeque::new(),
tasks_queue: HashMap::new(),
}
}
pub fn next_task(&mut self) -> Option<ServerTask> {
self.peers_queue.pop_front()
.map(|peer_index| {
let (peer_task, is_last_peer_task) = {
let peer_tasks = self.tasks_queue.get_mut(&peer_index)
.expect("entry from tasks_queue is removed when empty; when empty, peer is removed from peers_queue; qed");
let peer_task = peer_tasks.pop_front()
.expect("entry from peer_tasks is removed when empty; when empty, peer is removed from peers_queue; qed");
(peer_task, peer_tasks.is_empty())
};
if !is_last_peer_task {
self.peers_queue.push_back(peer_index);
} else {
self.tasks_queue.remove(&peer_index);
}
peer_task
})
}
pub fn add_task(&mut self, task: ServerTask) {
let peer_index = task.peer_index();
match self.tasks_queue.entry(peer_index) {
Entry::Occupied(mut entry) => {
let add_to_peers_queue = entry.get().is_empty();
entry.get_mut().push_back(task);
if add_to_peers_queue {
self.peers_queue.push_back(peer_index);
}
},
Entry::Vacant(entry) => {
let mut new_tasks = VecDeque::new();
new_tasks.push_back(task);
entry.insert(new_tasks);
self.peers_queue.push_back(peer_index);
}
}
self.queue_ready.notify_one();
}
pub fn add_task_front(&mut self, task: ServerTask) {
let peer_index = task.peer_index();
match self.tasks_queue.entry(peer_index) {
Entry::Occupied(mut entry) => {
let add_to_peers_queue = entry.get().is_empty();
entry.get_mut().push_front(task);
if add_to_peers_queue {
self.peers_queue.push_back(peer_index);
}
},
Entry::Vacant(entry) => {
let mut new_tasks = VecDeque::new();
new_tasks.push_back(task);
entry.insert(new_tasks);
self.peers_queue.push_back(peer_index);
}
}
self.queue_ready.notify_one();
}
pub fn remove_peer_tasks(&mut self, peer_index: PeerIndex) {
if self.tasks_queue.remove(&peer_index).is_some() {
let position = self.peers_queue.iter().position(|p| p == &peer_index)
.expect("there are tasks for peer in tasks_queue; all tasks from tasks_queue are queued in peers_queue; qed");
self.peers_queue.remove(position);
}
}
}
impl<TExecutor> ServerTaskExecutor<TExecutor> where TExecutor: TaskExecutor {
pub fn new(peers: PeersRef, storage: StorageRef, memory_pool: MemoryPoolRef, executor: ExecutorRef<TExecutor>) -> Self {
ServerTaskExecutor {
peers: peers,
storage: storage,
memory_pool: memory_pool,
executor: executor,
}
}
pub fn execute(&self, task: ServerTask) -> Option<ServerTask> {
match task {
ServerTask::GetData(peer_index, message) => return self.serve_get_data(peer_index, message),
ServerTask::ReversedGetData(peer_index, message, notfound) => return self.serve_reversed_get_data(peer_index, message, notfound),
ServerTask::GetBlocks(peer_index, message) => self.serve_get_blocks(peer_index, message),
ServerTask::GetHeaders(peer_index, message, request_id) => self.serve_get_headers(peer_index, message, request_id),
ServerTask::Mempool(peer_index) => self.serve_mempool(peer_index),
ServerTask::GetBlockTxn(peer_index, message) => self.serve_get_block_txn(peer_index, message),
}
None
}
fn serve_get_data(&self, peer_index: PeerIndex, mut message: types::GetData) -> Option<ServerTask> {
message.inventory.reverse();
let notfound = types::NotFound { inventory: Vec::new(), };
Some(ServerTask::ReversedGetData(peer_index, message, notfound))
}
fn serve_reversed_get_data(&self, peer_index: PeerIndex, mut message: types::GetData, mut notfound: types::NotFound) -> Option<ServerTask> {
let next_item = match message.inventory.pop() {
None => {
if !notfound.inventory.is_empty() {
trace!(target: "sync", "'getdata' from peer#{} container contains {} unknown items", peer_index, notfound.inventory.len());
self.executor.execute(Task::NotFound(peer_index, notfound));
}
return None;
},
Some(next_item) => next_item,
};
match next_item.inv_type {
common::InventoryType::MessageTx => {
if let Some(transaction) = self.memory_pool.read().read_by_hash(&next_item.hash) {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with tx {}", peer_index, next_item.hash.to_reversed_str());
let transaction = IndexedTransaction::new(next_item.hash, transaction.clone());
self.executor.execute(Task::Transaction(peer_index, transaction));
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::MessageWitnessTx => {
if let Some(transaction) = self.memory_pool.read().read_by_hash(&next_item.hash) {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with witness-tx {}", peer_index, next_item.hash.to_reversed_str());
let transaction = IndexedTransaction::new(next_item.hash, transaction.clone());
self.executor.execute(Task::WitnessTransaction(peer_index, transaction));
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::MessageBlock => {
if let Some(block) = self.storage.block(next_item.hash.clone().into()) {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with block {}", peer_index, next_item.hash.to_reversed_str());
self.executor.execute(Task::Block(peer_index, block.into()));
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::MessageFilteredBlock => {
if let Some(block) = self.storage.block(next_item.hash.clone().into()) {
let message_artefacts = self.peers.build_merkle_block(peer_index, &block.into());
if let Some(message_artefacts) = message_artefacts {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with merkleblock {}", peer_index, next_item.hash.to_reversed_str());
self.executor.execute(Task::MerkleBlock(peer_index, message_artefacts.merkleblock));
for matched_transaction in message_artefacts.matching_transactions {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with merkletx {}", peer_index, matched_transaction.hash.to_reversed_str());
self.executor.execute(Task::Transaction(peer_index, matched_transaction));
}
} else {
notfound.inventory.push(next_item);
}
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::MessageCompactBlock => {
if let Some(block) = self.storage.block(next_item.hash.clone().into()) {
let message = self.peers.build_compact_block(peer_index, &block.into());
if let Some(message) = message {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with compactblock {}", peer_index, next_item.hash.to_reversed_str());
self.executor.execute(Task::CompactBlock(peer_index, message));
}
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::MessageWitnessBlock => {
if let Some(block) = self.storage.block(next_item.hash.clone().into()) {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with witness-block {}", peer_index, next_item.hash.to_reversed_str());
self.executor.execute(Task::WitnessBlock(peer_index, block.into()));
} else {
notfound.inventory.push(next_item);
}
},
common::InventoryType::Error | common::InventoryType::MessageWitnessFilteredBlock => (),
}
Some(ServerTask::ReversedGetData(peer_index, message, notfound))
}
fn serve_get_blocks(&self, peer_index: PeerIndex, message: types::GetBlocks) {
if let Some(block_height) = self.locate_best_common_block(&message.hash_stop, &message.block_locator_hashes) {
let inventory: Vec<_> = (block_height + 1..block_height + 1 + (types::GETBLOCKS_MAX_RESPONSE_HASHES as BlockHeight))
.map(|block_height| self.storage.block_hash(block_height))
.take_while(Option::is_some)
.map(Option::unwrap)
.take_while(|block_hash| block_hash != &message.hash_stop)
.map(common::InventoryVector::block)
.collect();
if !inventory.is_empty() {
trace!(target: "sync", "'getblocks' response to peer#{} is ready with {} hashes", peer_index, inventory.len());
self.executor.execute(Task::Inventory(peer_index, types::Inv::with_inventory(inventory)));
} else {
trace!(target: "sync", "'getblocks' request from peer#{} is ignored as there are no new blocks for peer", peer_index);
}
} else {
self.peers.misbehaving(peer_index, "Got 'getblocks' message without known blocks");
return;
}
}
fn serve_get_headers(&self, peer_index: PeerIndex, message: types::GetHeaders, request_id: RequestId) {
if let Some(block_height) = self.locate_best_common_block(&message.hash_stop, &message.block_locator_hashes) {
let headers: Vec<_> = (block_height + 1..block_height + 1 + (types::GETHEADERS_MAX_RESPONSE_HEADERS as BlockHeight))
.map(|block_height| self.storage.block_hash(block_height))
.take_while(Option::is_some)
.map(Option::unwrap)
.take_while(|block_hash| block_hash != &message.hash_stop)
.map(|block_hash| self.storage.block_header(block_hash.into()))
.take_while(Option::is_some)
.map(Option::unwrap)
.collect();
trace!(target: "sync", "'getheaders' response to peer#{} is ready with {} headers", peer_index, headers.len());
self.executor.execute(Task::Headers(peer_index, types::Headers::with_headers(headers), Some(request_id)));
} else {
self.peers.misbehaving(peer_index, "Got 'headers' message without known blocks");
return;
}
}
fn serve_mempool(&self, peer_index: PeerIndex) {
let inventory: Vec<_> = self.memory_pool.read()
.get_transactions_ids()
.into_iter()
.map(common::InventoryVector::tx)
.collect();
if !inventory.is_empty() {
trace!(target: "sync", "'mempool' response to peer#{} is ready with {} transactions", peer_index, inventory.len());
self.executor.execute(Task::Inventory(peer_index, types::Inv::with_inventory(inventory)));
} else {
trace!(target: "sync", "'mempool' request from peer#{} is ignored as pool is empty", peer_index);
}
}
fn serve_get_block_txn(&self, peer_index: PeerIndex, message: types::GetBlockTxn) {
if !self.peers.is_hash_known_as(peer_index, &message.request.blockhash, KnownHashType::CompactBlock) {
self.peers.misbehaving(peer_index, &format!("Got 'getblocktxn' message for non-sent block: {}", message.request.blockhash.to_reversed_str()));
return;
}
let block_transactions = self.storage.block_transaction_hashes(message.request.blockhash.clone().into());
let block_transactions_len = block_transactions.len();
let requested_len = message.request.indexes.len();
if requested_len > block_transactions_len {
self.peers.misbehaving(peer_index, &format!("Got 'getblocktxn' message with {} transactions, when there are: {}", requested_len, block_transactions_len));
return;
}
let mut requested_indexes = HashSet::new();
let mut transactions = Vec::with_capacity(message.request.indexes.len());
for transaction_index in message.request.indexes {
if transaction_index >= block_transactions_len {
self.peers.misbehaving(peer_index, &format!("Got 'getblocktxn' message with index {}, larger than index of last transaction {}", transaction_index, block_transactions_len - 1));
return;
}
if !requested_indexes.insert(transaction_index) {
self.peers.misbehaving(peer_index, &format!("Got 'getblocktxn' message where same index {} has been requested several times", transaction_index));
return;
}
if let Some(transaction) = self.storage.transaction(&block_transactions[transaction_index]) {
transactions.push(transaction);
} else {
warn!(target: "sync", "'getblocktxn' request from peer#{} is ignored as we have failed to find transaction {} in storage", peer_index, block_transactions[transaction_index].to_reversed_str());
return;
}
}
trace!(target: "sync", "'getblocktxn' response to peer#{} is ready with {} transactions", peer_index, transactions.len());
self.executor.execute(Task::BlockTxn(peer_index, types::BlockTxn {
request: common::BlockTransactions {
blockhash: message.request.blockhash,
transactions: transactions,
}
}));
}
fn locate_best_common_block(&self, hash_stop: &H256, locator: &[H256]) -> Option<BlockHeight> {
for block_hash in locator.iter().chain(&[hash_stop.clone()]) {
if let Some(block_number) = self.storage.block_number(block_hash) {
return Some(block_number);
}
let mut block_hash = block_hash.clone();
loop {
let block_header = match self.storage.block_header(block_hash.into()) {
None => break,
Some(block_header) => block_header,
};
if let Some(block_number) = self.storage.block_number(&block_header.previous_header_hash) {
return Some(block_number);
}
block_hash = block_header.previous_header_hash;
}
}
None
}
}
#[cfg(test)]
pub mod tests {
extern crate test_data;
use std::mem::replace;
use std::sync::Arc;
use parking_lot::{Mutex, RwLock};
use db::{BlockChainDatabase};
use message::types;
use message::common::{self, Services, InventoryVector, InventoryType};
use primitives::hash::H256;
use chain::Transaction;
use inbound_connection::tests::DummyOutboundSyncConnection;
use miner::MemoryPool;
use local_node::tests::{default_filterload, make_filteradd};
use synchronization_executor::Task;
use synchronization_executor::tests::DummyTaskExecutor;
use synchronization_peers::{PeersContainer, PeersFilters, PeersImpl};
use types::{PeerIndex, StorageRef, MemoryPoolRef, PeersRef, ExecutorRef};
use utils::KnownHashType;
use super::{Server, ServerTask, ServerImpl, ServerTaskExecutor};
pub struct DummyServer {
tasks: Mutex<Vec<ServerTask>>,
}
impl DummyServer {
pub fn new() -> Self {
DummyServer {
tasks: Mutex::new(Vec::new()),
}
}
pub fn take_tasks(&self) -> Vec<ServerTask> {
replace(&mut *self.tasks.lock(), Vec::new())
}
}
impl Server for DummyServer {
fn execute(&self, task: ServerTask) {
self.tasks.lock().push(task);
}
fn on_disconnect(&self, _peer_index: PeerIndex) {
}
}
fn create_synchronization_server() -> (StorageRef, MemoryPoolRef, ExecutorRef<DummyTaskExecutor>, PeersRef, ServerImpl) {
let peers = Arc::new(PeersImpl::default());
let storage = Arc::new(BlockChainDatabase::init_test_chain(vec![test_data::genesis().into()]));
let memory_pool = Arc::new(RwLock::new(MemoryPool::new()));
let executor = DummyTaskExecutor::new();
let server = ServerImpl::new(peers.clone(), storage.clone(), memory_pool.clone(), executor.clone());
(storage, memory_pool, executor, peers, server)
}
#[test]
fn server_getdata_responds_notfound_when_block_not_found() {
let (_, _, executor, _, server) = create_synchronization_server();
let inventory = vec![
InventoryVector {
inv_type: InventoryType::MessageBlock,
hash: H256::default(),
}
];
server.execute(ServerTask::GetData(0, types::GetData::with_inventory(inventory.clone())));
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::NotFound(0, types::NotFound::with_inventory(inventory))]);
}
#[test]
fn server_getdata_responds_block_when_block_is_found() {
let (_, _, executor, _, server) = create_synchronization_server();
let inventory = vec![
InventoryVector {
inv_type: InventoryType::MessageBlock,
hash: test_data::genesis().hash(),
}
];
server.execute(ServerTask::GetData(0, types::GetData::with_inventory(inventory.clone())));
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Block(0, test_data::genesis().into())]);
}
#[test]
fn server_getblocks_do_not_responds_inventory_when_synchronized() {
let (_, _, executor, _, server) = create_synchronization_server();
let genesis_block_hash = test_data::genesis().hash();
server.execute(ServerTask::GetBlocks(0, types::GetBlocks {
version: 0,
block_locator_hashes: vec![genesis_block_hash.clone()],
hash_stop: H256::default(),
}));
let tasks = DummyTaskExecutor::wait_tasks_for(executor, 100);
assert_eq!(tasks, vec![]);
}
#[test]
fn server_getblocks_responds_inventory_when_have_unknown_blocks() {
let (storage, _, executor, _, server) = create_synchronization_server();
storage.insert(test_data::block_h1().into()).expect("Db write error");
storage.canonize(&test_data::block_h1().hash()).unwrap();
server.execute(ServerTask::GetBlocks(0, types::GetBlocks {
version: 0,
block_locator_hashes: vec![test_data::genesis().hash()],
hash_stop: H256::default(),
}));
let inventory = vec![InventoryVector {
inv_type: InventoryType::MessageBlock,
hash: test_data::block_h1().hash(),
}];
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Inventory(0, types::Inv::with_inventory(inventory))]);
}
#[test]
fn server_getheaders_do_not_responds_headers_when_synchronized() {
let (_, _, executor, _, server) = create_synchronization_server();
let genesis_block_hash = test_data::genesis().hash();
let dummy_id = 6;
server.execute(ServerTask::GetHeaders(0, types::GetHeaders {
version: 0,
block_locator_hashes: vec![genesis_block_hash.clone()],
hash_stop: H256::default(),
}, dummy_id));
let tasks = DummyTaskExecutor::wait_tasks_for(executor, 100);
assert_eq!(tasks, vec![Task::Headers(0, types::Headers::with_headers(vec![]), Some(dummy_id))]);
}
#[test]
fn server_getheaders_responds_headers_when_have_unknown_blocks() {
let (storage, _, executor, _, server) = create_synchronization_server();
storage.insert(test_data::block_h1().into()).expect("Db write error");
storage.canonize(&test_data::block_h1().hash()).unwrap();
let dummy_id = 0;
server.execute(ServerTask::GetHeaders(0, types::GetHeaders {
version: 0,
block_locator_hashes: vec![test_data::genesis().hash()],
hash_stop: H256::default(),
}, dummy_id));
let headers = vec![
test_data::block_h1().block_header,
];
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Headers(0, types::Headers::with_headers(headers), Some(dummy_id))]);
}
#[test]
fn server_mempool_do_not_responds_inventory_when_empty_memory_pool() {
let (_, _, executor, _, server) = create_synchronization_server();
server.execute(ServerTask::Mempool(0));
let tasks = DummyTaskExecutor::wait_tasks_for(executor, 100);
assert_eq!(tasks, vec![]);
}
#[test]
fn server_mempool_responds_inventory_when_non_empty_memory_pool() {
let (_, memory_pool, executor, _, server) = create_synchronization_server();
let transaction = Transaction::default();
let transaction_hash = transaction.hash();
memory_pool.write().insert_verified(transaction.into());
server.execute(ServerTask::Mempool(0));
let inventory = vec![InventoryVector {
inv_type: InventoryType::MessageTx,
hash: transaction_hash,
}];
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Inventory(0, types::Inv::with_inventory(inventory))]);
}
#[test]
fn server_get_block_txn_responds_when_good_request() {
let (_, _, executor, peers, server) = create_synchronization_server();
peers.insert(0, Services::default(), DummyOutboundSyncConnection::new());
peers.hash_known_as(0, test_data::genesis().hash(), KnownHashType::CompactBlock);
server.execute(ServerTask::GetBlockTxn(0, types::GetBlockTxn {
request: common::BlockTransactionsRequest {
blockhash: test_data::genesis().hash(),
indexes: vec![0],
}
}));
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::BlockTxn(0, types::BlockTxn {
request: common::BlockTransactions {
blockhash: test_data::genesis().hash(),
transactions: vec![test_data::genesis().transactions[0].clone()],
}
})]);
}
#[test]
fn server_get_block_txn_do_not_responds_when_bad_request() {
let (_, _, _, peers, server) = create_synchronization_server();
peers.insert(0, Services::default(), DummyOutboundSyncConnection::new());
assert!(peers.enumerate().contains(&0));
server.execute(ServerTask::GetBlockTxn(0, types::GetBlockTxn {
request: common::BlockTransactionsRequest {
blockhash: test_data::genesis().hash(),
indexes: vec![1],
}
}));
use std::thread;
use std::time::Duration;
thread::park_timeout(Duration::from_millis(100));
assert!(!peers.enumerate().contains(&0));
}
#[test]
fn server_getdata_responds_notfound_when_transaction_is_inaccessible() {
let (_, _, executor, _, server) = create_synchronization_server();
let inventory = vec![
InventoryVector {
inv_type: InventoryType::MessageTx,
hash: H256::default(),
},
InventoryVector {
inv_type: InventoryType::MessageTx,
hash: test_data::genesis().transactions[0].hash(),
},
];
server.execute(ServerTask::GetData(0, types::GetData::with_inventory(inventory.clone())));
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::NotFound(0, types::NotFound::with_inventory(inventory))]);
}
#[test]
fn server_getdata_responds_transaction_when_transaction_is_in_memory() {
let (_, memory_pool, executor, _, server) = create_synchronization_server();
let tx_verified: Transaction = test_data::TransactionBuilder::with_output(20).into();
let tx_verified_hash = tx_verified.hash();
{
memory_pool.write().insert_verified(tx_verified.clone().into());
}
let inventory = vec![
InventoryVector {
inv_type: InventoryType::MessageTx,
hash: tx_verified_hash,
},
];
server.execute(ServerTask::GetData(0, types::GetData::with_inventory(inventory.clone())));
let mut tasks = DummyTaskExecutor::wait_tasks(executor.clone());
if tasks.len() != 2 {
tasks.extend(DummyTaskExecutor::wait_tasks_for(executor, 100));
}
assert_eq!(tasks, vec![
Task::Transaction(0, tx_verified.into()),
]);
}
#[test]
fn server_responds_with_nonempty_inventory_when_getdata_stop_hash_filled() {
let (storage, _, executor, _, server) = create_synchronization_server();
{
storage.insert(test_data::block_h1().into()).expect("no error");
storage.canonize(&test_data::block_h1().hash()).unwrap();
}
server.execute(ServerTask::GetBlocks(0, types::GetBlocks {
version: 0,
block_locator_hashes: vec![],
hash_stop: test_data::genesis().hash(),
}));
let inventory = vec![InventoryVector {
inv_type: InventoryType::MessageBlock,
hash: test_data::block_h1().hash(),
}];
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Inventory(0, types::Inv::with_inventory(inventory))]);
}
#[test]
fn server_responds_with_nonempty_headers_when_getdata_stop_hash_filled() {
let (storage, _, executor, _, server) = create_synchronization_server();
{
storage.insert(test_data::block_h1().into()).expect("no error");
storage.canonize(&test_data::block_h1().hash()).unwrap();
}
let dummy_id = 6;
server.execute(ServerTask::GetHeaders(0, types::GetHeaders {
version: 0,
block_locator_hashes: vec![],
hash_stop: test_data::genesis().hash(),
}, dummy_id));
let headers = vec![
test_data::block_h1().block_header,
];
let tasks = DummyTaskExecutor::wait_tasks(executor);
assert_eq!(tasks, vec![Task::Headers(0, types::Headers::with_headers(headers), Some(dummy_id))]);
}
#[test]
fn server_serves_merkleblock() {
let peers = Arc::new(PeersImpl::default());
let storage = Arc::new(BlockChainDatabase::init_test_chain(vec![test_data::genesis().into()]));
let memory_pool = Arc::new(RwLock::new(MemoryPool::new()));
let sync_executor = DummyTaskExecutor::new();
let executor = ServerTaskExecutor::new(peers.clone(), storage.clone(), memory_pool.clone(), sync_executor.clone());
let genesis = test_data::genesis();
let b1 = test_data::block_builder().header().parent(genesis.hash()).build()
.transaction().output().value(10).build().build()
.build();
let b2 = test_data::block_builder().header().parent(b1.hash()).build()
.transaction().output().value(20).build().build()
.build();
let tx1 = b1.transactions[0].clone();
let tx2 = b2.transactions[0].clone();
let tx1_hash = tx1.hash();
let tx2_hash = tx2.hash();
let b1_hash = b1.hash();
let b2_hash = b2.hash();
storage.insert(b1.clone().into()).expect("no error");
storage.insert(b2.clone().into()).expect("no error");
storage.canonize(&b1.hash()).unwrap();
storage.canonize(&b2.hash()).unwrap();
let peer_index2 = 1; peers.insert(peer_index2, Services::default(), DummyOutboundSyncConnection::new());
let mut loop_task = ServerTask::GetData(peer_index2, types::GetData {inventory: vec![
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b1_hash.clone() },
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b2_hash.clone() },
]});
while let Some(new_task) = executor.execute(loop_task) {
loop_task = new_task;
}
assert_eq!(sync_executor.take_tasks(), vec![Task::NotFound(peer_index2, types::NotFound::with_inventory(vec![
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b1_hash.clone() },
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b2_hash.clone() },
]))]);
let peers_config = vec![
(true, false),
(false, true),
(true, true),
(false, false),
];
let mut counter = 2;
for (get_tx1, get_tx2) in peers_config {
let peer_index = counter; peers.insert(peer_index, Services::default(), DummyOutboundSyncConnection::new());
counter += 1;
peers.set_bloom_filter(peer_index, default_filterload());
if get_tx1 {
peers.update_bloom_filter(peer_index, make_filteradd(&*tx1_hash));
}
if get_tx2 {
peers.update_bloom_filter(peer_index, make_filteradd(&*tx2_hash));
}
let mut loop_task = ServerTask::GetData(peer_index, types::GetData {inventory: vec![
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b1_hash.clone() },
InventoryVector { inv_type: InventoryType::MessageFilteredBlock, hash: b2_hash.clone() },
]});
while let Some(new_task) = executor.execute(loop_task) {
loop_task = new_task;
}
let mut index = 0;
let tasks = sync_executor.take_tasks();
match tasks[index] {
Task::MerkleBlock(_, _) => {
if get_tx1 {
index += 1;
match tasks[index] {
Task::Transaction(_, _) => (),
_ => panic!("unexpected"),
}
}
},
_ => panic!("unexpected"),
}
index += 1;
match tasks[index] {
Task::MerkleBlock(_, _) => {
if get_tx2 {
index += 1;
match tasks[index] {
Task::Transaction(_, _) => (),
_ => panic!("unexpected"),
}
}
},
_ => panic!("unexpected"),
}
}
}
#[test]
fn server_serves_compactblock() {
let peers = Arc::new(PeersImpl::default());
let storage = Arc::new(BlockChainDatabase::init_test_chain(vec![test_data::genesis().into()]));
let memory_pool = Arc::new(RwLock::new(MemoryPool::new()));
let sync_executor = DummyTaskExecutor::new();
let executor = ServerTaskExecutor::new(peers.clone(), storage.clone(), memory_pool.clone(), sync_executor.clone());
let genesis = test_data::genesis();
let b1 = test_data::block_builder().header().parent(genesis.hash()).build()
.transaction().output().value(10).build().build()
.build();
let b1_hash = b1.hash();
storage.insert(b1.clone().into()).expect("no error");
storage.canonize(&b1.hash()).unwrap();
let peer_index2 = 1; peers.insert(peer_index2, Services::default(), DummyOutboundSyncConnection::new());
let mut loop_task = ServerTask::GetData(peer_index2, types::GetData {inventory: vec![
InventoryVector { inv_type: InventoryType::MessageCompactBlock, hash: b1_hash.clone() },
]});
while let Some(new_task) = executor.execute(loop_task) {
loop_task = new_task;
}
let tasks = sync_executor.take_tasks();
assert_eq!(tasks.len(), 1);
match tasks[0] {
Task::CompactBlock(_, _) => (),
_ => panic!("unexpected"),
}
}
}