283 lines
8.9 KiB
Rust
283 lines
8.9 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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//! Test implementation of miner service.
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use std::sync::Arc;
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use std::collections::{BTreeMap, BTreeSet, HashMap};
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use bytes::Bytes;
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use ethcore::block::{SealedBlock, IsBlock};
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use ethcore::client::{Nonce, PrepareOpenBlock, StateClient, EngineInfo};
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use ethcore::engines::{EthEngine, signer::EngineSigner};
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use ethcore::error::Error;
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use ethcore::miner::{self, MinerService, AuthoringParams};
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use ethereum_types::{H256, U256, Address};
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use miner::pool::local_transactions::Status as LocalTransactionStatus;
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use miner::pool::{verifier, VerifiedTransaction, QueueStatus};
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use parking_lot::{RwLock, Mutex};
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use types::transaction::{self, UnverifiedTransaction, SignedTransaction, PendingTransaction};
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use txpool;
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use types::BlockNumber;
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use types::block::Block;
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use types::header::Header;
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use types::ids::BlockId;
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use types::receipt::RichReceipt;
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/// Test miner service.
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pub struct TestMinerService {
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/// Imported transactions.
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pub imported_transactions: Mutex<Vec<SignedTransaction>>,
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/// Pre-existed pending transactions
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pub pending_transactions: Mutex<HashMap<H256, SignedTransaction>>,
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/// Pre-existed local transactions
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pub local_transactions: Mutex<BTreeMap<H256, LocalTransactionStatus>>,
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/// Pre-existed pending receipts
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pub pending_receipts: Mutex<Vec<RichReceipt>>,
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/// Next nonces.
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pub next_nonces: RwLock<HashMap<Address, U256>>,
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/// Signer (if any)
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pub signer: RwLock<Option<Box<EngineSigner>>>,
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authoring_params: RwLock<AuthoringParams>,
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}
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impl Default for TestMinerService {
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fn default() -> TestMinerService {
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TestMinerService {
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imported_transactions: Default::default(),
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pending_transactions: Default::default(),
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local_transactions: Default::default(),
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pending_receipts: Default::default(),
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next_nonces: Default::default(),
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authoring_params: RwLock::new(AuthoringParams {
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author: Address::zero(),
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gas_range_target: (12345.into(), 54321.into()),
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extra_data: vec![1, 2, 3, 4],
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}),
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signer: RwLock::new(None),
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}
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}
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}
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impl TestMinerService {
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/// Increments nonce for given address.
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pub fn increment_nonce(&self, address: &Address) {
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let mut next_nonces = self.next_nonces.write();
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let nonce = next_nonces.entry(*address).or_insert_with(|| 0.into());
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*nonce = *nonce + 1;
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}
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}
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impl StateClient for TestMinerService {
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// State will not be used by test client anyway, since all methods that accept state are mocked
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type State = ();
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fn latest_state(&self) -> Self::State {
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()
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}
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fn state_at(&self, _id: BlockId) -> Option<Self::State> {
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Some(())
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}
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}
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impl EngineInfo for TestMinerService {
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fn engine(&self) -> &EthEngine {
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unimplemented!()
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}
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}
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impl MinerService for TestMinerService {
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type State = ();
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fn pending_state(&self, _latest_block_number: BlockNumber) -> Option<Self::State> {
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None
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}
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fn pending_block_header(&self, _latest_block_number: BlockNumber) -> Option<Header> {
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None
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}
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fn pending_block(&self, _latest_block_number: BlockNumber) -> Option<Block> {
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None
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}
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fn authoring_params(&self) -> AuthoringParams {
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self.authoring_params.read().clone()
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}
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fn set_author(&self, author: miner::Author) {
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self.authoring_params.write().author = author.address();
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if let miner::Author::Sealer(signer) = author {
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*self.signer.write() = Some(signer);
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}
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}
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fn set_extra_data(&self, extra_data: Bytes) {
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self.authoring_params.write().extra_data = extra_data;
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}
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fn set_gas_range_target(&self, target: (U256, U256)) {
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self.authoring_params.write().gas_range_target = target;
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}
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/// Imports transactions to transaction queue.
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fn import_external_transactions<C: Nonce + Sync>(&self, chain: &C, transactions: Vec<UnverifiedTransaction>)
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-> Vec<Result<(), transaction::Error>>
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{
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// lets assume that all txs are valid
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let transactions: Vec<_> = transactions.into_iter().map(|tx| SignedTransaction::new(tx).unwrap()).collect();
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self.imported_transactions.lock().extend_from_slice(&transactions);
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for sender in transactions.iter().map(|tx| tx.sender()) {
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let nonce = self.next_nonce(chain, &sender);
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self.next_nonces.write().insert(sender, nonce);
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}
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transactions
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.iter()
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.map(|_| Ok(()))
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.collect()
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}
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/// Imports transactions to transaction queue.
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fn import_own_transaction<C: Nonce + Sync>(&self, _chain: &C, _pending: PendingTransaction)
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-> Result<(), transaction::Error> {
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// this function is no longer called directly from RPC
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unimplemented!();
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}
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/// Imports transactions to queue - treats as local based on trusted flag, config, and tx source
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fn import_claimed_local_transaction<C: Nonce + Sync>(&self, chain: &C, pending: PendingTransaction, _trusted: bool)
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-> Result<(), transaction::Error> {
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// keep the pending nonces up to date
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let sender = pending.transaction.sender();
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let nonce = self.next_nonce(chain, &sender);
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self.next_nonces.write().insert(sender, nonce);
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// lets assume that all txs are valid
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self.imported_transactions.lock().push(pending.transaction);
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Ok(())
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}
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/// Called when blocks are imported to chain, updates transactions queue.
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fn chain_new_blocks<C>(&self, _chain: &C, _imported: &[H256], _invalid: &[H256], _enacted: &[H256], _retracted: &[H256], _is_internal: bool) {
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unimplemented!();
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}
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/// New chain head event. Restart mining operation.
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fn update_sealing<C>(&self, _chain: &C) {
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unimplemented!();
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}
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fn work_package<C: PrepareOpenBlock>(&self, chain: &C) -> Option<(H256, BlockNumber, u64, U256)> {
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let params = self.authoring_params();
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let open_block = chain.prepare_open_block(params.author, params.gas_range_target, params.extra_data).unwrap();
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let closed = open_block.close().unwrap();
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let header = closed.header();
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Some((header.hash(), header.number(), header.timestamp(), *header.difficulty()))
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}
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fn transaction(&self, hash: &H256) -> Option<Arc<VerifiedTransaction>> {
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self.pending_transactions.lock().get(hash).cloned().map(|tx| {
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Arc::new(VerifiedTransaction::from_pending_block_transaction(tx))
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})
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}
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fn remove_transaction(&self, hash: &H256) -> Option<Arc<VerifiedTransaction>> {
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self.pending_transactions.lock().remove(hash).map(|tx| {
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Arc::new(VerifiedTransaction::from_pending_block_transaction(tx))
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})
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}
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fn pending_transactions(&self, _best_block: BlockNumber) -> Option<Vec<SignedTransaction>> {
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Some(self.pending_transactions.lock().values().cloned().collect())
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}
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fn local_transactions(&self) -> BTreeMap<H256, LocalTransactionStatus> {
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self.local_transactions.lock().iter().map(|(hash, stats)| (*hash, stats.clone())).collect()
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}
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fn ready_transactions<C>(&self, _chain: &C, _max_len: usize, _ordering: miner::PendingOrdering) -> Vec<Arc<VerifiedTransaction>> {
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self.queued_transactions()
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}
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fn pending_transaction_hashes<C>(&self, _chain: &C) -> BTreeSet<H256> {
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self.queued_transactions().into_iter().map(|tx| tx.signed().hash()).collect()
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}
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fn queued_transactions(&self) -> Vec<Arc<VerifiedTransaction>> {
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self.pending_transactions.lock().values().cloned().map(|tx| {
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Arc::new(VerifiedTransaction::from_pending_block_transaction(tx))
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}).collect()
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}
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fn queued_transaction_hashes(&self) -> Vec<H256> {
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self.pending_transactions.lock().keys().cloned().map(|hash| hash).collect()
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}
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fn pending_receipts(&self, _best_block: BlockNumber) -> Option<Vec<RichReceipt>> {
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Some(self.pending_receipts.lock().clone())
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}
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fn next_nonce<C: Nonce + Sync>(&self, _chain: &C, address: &Address) -> U256 {
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self.next_nonces.read().get(address).cloned().unwrap_or_default()
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}
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fn is_currently_sealing(&self) -> bool {
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false
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}
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fn queue_status(&self) -> QueueStatus {
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QueueStatus {
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options: verifier::Options {
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minimal_gas_price: 0x1312d00.into(),
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block_gas_limit: 5_000_000.into(),
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tx_gas_limit: 5_000_000.into(),
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no_early_reject: false,
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},
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status: txpool::LightStatus {
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mem_usage: 1_000,
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transaction_count: 52,
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senders: 1,
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},
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limits: txpool::Options {
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max_count: 1_024,
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max_per_sender: 16,
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max_mem_usage: 5_000,
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},
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}
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}
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/// Submit `seal` as a valid solution for the header of `pow_hash`.
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/// Will check the seal, but not actually insert the block into the chain.
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fn submit_seal(&self, _pow_hash: H256, _seal: Vec<Bytes>) -> Result<SealedBlock, Error> {
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unimplemented!();
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}
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fn sensible_gas_price(&self) -> U256 {
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20_000_000_000u64.into()
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}
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fn sensible_gas_limit(&self) -> U256 {
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0x5208.into()
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}
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}
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