116 lines
3.8 KiB
Rust
116 lines
3.8 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
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//! Test implementation of miner service.
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use util::{Address, H256, Bytes, U256};
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use util::standard::*;
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use ethcore::error::Error;
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use ethcore::client::BlockChainClient;
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use ethcore::block::ClosedBlock;
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use ethcore::transaction::SignedTransaction;
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use ethminer::{MinerService, MinerStatus, AccountDetails};
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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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/// Latest closed block.
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pub latest_closed_block: Mutex<Option<ClosedBlock>>,
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/// Pre-existed pending transactions
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pub pending_transactions: Mutex<HashMap<H256, SignedTransaction>>,
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/// Last nonces.
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pub last_nonces: RwLock<HashMap<Address, U256>>,
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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: Mutex::new(Vec::new()),
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latest_closed_block: Mutex::new(None),
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pending_transactions: Mutex::new(HashMap::new()),
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last_nonces: RwLock::new(HashMap::new()),
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}
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}
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}
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impl MinerService for TestMinerService {
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/// Returns miner's status.
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fn status(&self) -> MinerStatus {
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MinerStatus {
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transactions_in_pending_queue: 0,
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transactions_in_future_queue: 0,
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transactions_in_pending_block: 1
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}
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}
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/// Imports transactions to transaction queue.
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fn import_transactions<T>(&self, transactions: Vec<SignedTransaction>, _fetch_account: T) -> Vec<Result<(), Error>>
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where T: Fn(&Address) -> AccountDetails {
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// lets assume that all txs are valid
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self.imported_transactions.lock().unwrap().extend_from_slice(&transactions);
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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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/// Returns hashes of transactions currently in pending
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fn pending_transactions_hashes(&self) -> Vec<H256> {
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vec![]
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}
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/// Removes all transactions from the queue and restart mining operation.
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fn clear_and_reset(&self, _chain: &BlockChainClient) {
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unimplemented!();
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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(&self, _chain: &BlockChainClient, _imported: &[H256], _invalid: &[H256], _enacted: &[H256], _retracted: &[H256]) {
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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(&self, _chain: &BlockChainClient) {
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unimplemented!();
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}
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/// Grab the `ClosedBlock` that we want to be sealed. Comes as a mutex that you have to lock.
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fn sealing_block(&self, _chain: &BlockChainClient) -> &Mutex<Option<ClosedBlock>> {
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&self.latest_closed_block
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}
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fn transaction(&self, hash: &H256) -> Option<SignedTransaction> {
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self.pending_transactions.lock().unwrap().get(hash).cloned()
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}
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fn pending_transactions(&self) -> Vec<SignedTransaction> {
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self.pending_transactions.lock().unwrap().values().cloned().collect()
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}
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fn last_nonce(&self, address: &Address) -> Option<U256> {
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self.last_nonces.read().unwrap().get(address).cloned()
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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, _chain: &BlockChainClient, _pow_hash: H256, _seal: Vec<Bytes>) -> Result<(), Error> {
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unimplemented!();
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}
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}
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