1047 lines
57 KiB
Rust
1047 lines
57 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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//! Blockchain database.
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use util::*;
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use header::*;
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use extras::*;
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use transaction::*;
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use views::*;
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use receipt::Receipt;
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use chainfilter::{ChainFilter, BloomIndex, FilterDataSource};
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use blockchain::block_info::{BlockInfo, BlockLocation};
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use blockchain::best_block::BestBlock;
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use blockchain::bloom_indexer::BloomIndexer;
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use blockchain::tree_route::TreeRoute;
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use blockchain::update::ExtrasUpdate;
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use blockchain::CacheSize;
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const BLOOM_INDEX_SIZE: usize = 16;
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const BLOOM_LEVELS: u8 = 3;
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/// Blockchain configuration.
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#[derive(Debug)]
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pub struct BlockChainConfig {
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/// Preferred cache size in bytes.
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pub pref_cache_size: usize,
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/// Maximum cache size in bytes.
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pub max_cache_size: usize,
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}
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impl Default for BlockChainConfig {
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fn default() -> Self {
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BlockChainConfig {
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pref_cache_size: 1 << 14,
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max_cache_size: 1 << 20,
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}
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}
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}
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/// Interface for querying blocks by hash and by number.
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pub trait BlockProvider {
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/// Returns true if the given block is known
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/// (though not necessarily a part of the canon chain).
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fn is_known(&self, hash: &H256) -> bool;
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/// Get raw block data
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fn block(&self, hash: &H256) -> Option<Bytes>;
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/// Get the familial details concerning a block.
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fn block_details(&self, hash: &H256) -> Option<BlockDetails>;
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/// Get the hash of given block's number.
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fn block_hash(&self, index: BlockNumber) -> Option<H256>;
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/// Get the address of transaction with given hash.
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fn transaction_address(&self, hash: &H256) -> Option<TransactionAddress>;
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/// Get receipts of block with given hash.
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fn block_receipts(&self, hash: &H256) -> Option<BlockReceipts>;
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/// Get the partial-header of a block.
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fn block_header(&self, hash: &H256) -> Option<Header> {
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self.block(hash).map(|bytes| BlockView::new(&bytes).header())
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}
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/// Get a list of uncles for a given block.
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/// Returns None if block deos not exist.
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fn uncles(&self, hash: &H256) -> Option<Vec<Header>> {
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self.block(hash).map(|bytes| BlockView::new(&bytes).uncles())
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}
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/// Get a list of uncle hashes for a given block.
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/// Returns None if block does not exist.
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fn uncle_hashes(&self, hash: &H256) -> Option<Vec<H256>> {
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self.block(hash).map(|bytes| BlockView::new(&bytes).uncle_hashes())
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}
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/// Get the number of given block's hash.
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fn block_number(&self, hash: &H256) -> Option<BlockNumber> {
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self.block(hash).map(|bytes| BlockView::new(&bytes).header_view().number())
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}
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/// Get transaction with given transaction hash.
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fn transaction(&self, address: &TransactionAddress) -> Option<LocalizedTransaction> {
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self.block(&address.block_hash).and_then(|bytes| BlockView::new(&bytes).localized_transaction_at(address.index))
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}
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/// Get a list of transactions for a given block.
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/// Returns None if block does not exist.
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fn transactions(&self, hash: &H256) -> Option<Vec<LocalizedTransaction>> {
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self.block(hash).map(|bytes| BlockView::new(&bytes).localized_transactions())
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}
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/// Returns reference to genesis hash.
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fn genesis_hash(&self) -> H256 {
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self.block_hash(0).expect("Genesis hash should always exist")
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}
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/// Returns the header of the genesis block.
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fn genesis_header(&self) -> Header {
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self.block_header(&self.genesis_hash()).unwrap()
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}
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/// Returns numbers of blocks containing given bloom.
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fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockNumber, to_block: BlockNumber) -> Vec<BlockNumber>;
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}
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#[derive(Debug, Hash, Eq, PartialEq, Clone)]
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enum CacheID {
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Block(H256),
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Extras(ExtrasIndex, H256),
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}
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struct CacheManager {
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cache_usage: VecDeque<HashSet<CacheID>>,
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in_use: HashSet<CacheID>,
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}
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/// Structure providing fast access to blockchain data.
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///
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/// **Does not do input data verification.**
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pub struct BlockChain {
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pref_cache_size: usize,
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max_cache_size: usize,
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best_block: RwLock<BestBlock>,
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// block cache
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blocks: RwLock<HashMap<H256, Bytes>>,
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// extra caches
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block_details: RwLock<HashMap<H256, BlockDetails>>,
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block_hashes: RwLock<HashMap<BlockNumber, H256>>,
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transaction_addresses: RwLock<HashMap<H256, TransactionAddress>>,
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block_logs: RwLock<HashMap<H256, BlockLogBlooms>>,
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blocks_blooms: RwLock<HashMap<H256, BlocksBlooms>>,
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block_receipts: RwLock<HashMap<H256, BlockReceipts>>,
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extras_db: Database,
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blocks_db: Database,
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cache_man: RwLock<CacheManager>,
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// blooms indexing
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bloom_indexer: BloomIndexer,
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}
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impl FilterDataSource for BlockChain {
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fn bloom_at_index(&self, bloom_index: &BloomIndex) -> Option<H2048> {
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let location = self.bloom_indexer.location(bloom_index);
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self.blocks_blooms(&location.hash).and_then(|blooms| blooms.blooms.into_iter().nth(location.index).cloned())
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}
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}
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impl BlockProvider for BlockChain {
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/// Returns true if the given block is known
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/// (though not necessarily a part of the canon chain).
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fn is_known(&self, hash: &H256) -> bool {
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self.query_extras_exist(hash, &self.block_details)
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}
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/// Get raw block data
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fn block(&self, hash: &H256) -> Option<Bytes> {
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{
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let read = self.blocks.read().unwrap();
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if let Some(v) = read.get(hash) {
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return Some(v.clone());
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}
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}
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let opt = self.blocks_db.get(hash)
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.expect("Low level database error. Some issue with disk?");
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self.note_used(CacheID::Block(hash.clone()));
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match opt {
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Some(b) => {
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let bytes: Bytes = b.to_vec();
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let mut write = self.blocks.write().unwrap();
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write.insert(hash.clone(), bytes.clone());
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Some(bytes)
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},
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None => None
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}
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}
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/// Get the familial details concerning a block.
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fn block_details(&self, hash: &H256) -> Option<BlockDetails> {
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self.query_extras(hash, &self.block_details)
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}
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/// Get the hash of given block's number.
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fn block_hash(&self, index: BlockNumber) -> Option<H256> {
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self.query_extras(&index, &self.block_hashes)
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}
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/// Get the address of transaction with given hash.
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fn transaction_address(&self, hash: &H256) -> Option<TransactionAddress> {
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self.query_extras(hash, &self.transaction_addresses)
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}
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/// Get receipts of block with given hash.
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fn block_receipts(&self, hash: &H256) -> Option<BlockReceipts> {
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self.query_extras(hash, &self.block_receipts)
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}
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/// Returns numbers of blocks containing given bloom.
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fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockNumber, to_block: BlockNumber) -> Vec<BlockNumber> {
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let filter = ChainFilter::new(self, self.bloom_indexer.index_size(), self.bloom_indexer.levels());
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filter.blocks_with_bloom(bloom, from_block as usize, to_block as usize).into_iter().map(|b| b as BlockNumber).collect()
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}
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}
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const COLLECTION_QUEUE_SIZE: usize = 8;
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impl BlockChain {
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/// Create new instance of blockchain from given Genesis
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pub fn new(config: BlockChainConfig, genesis: &[u8], path: &Path) -> BlockChain {
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// open extras db
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let mut extras_path = path.to_path_buf();
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extras_path.push("extras");
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let extras_db = Database::open_default(extras_path.to_str().unwrap()).unwrap();
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// open blocks db
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let mut blocks_path = path.to_path_buf();
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blocks_path.push("blocks");
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let blocks_db = Database::open_default(blocks_path.to_str().unwrap()).unwrap();
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let mut cache_man = CacheManager{cache_usage: VecDeque::new(), in_use: HashSet::new()};
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(0..COLLECTION_QUEUE_SIZE).foreach(|_| cache_man.cache_usage.push_back(HashSet::new()));
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let bc = BlockChain {
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pref_cache_size: config.pref_cache_size,
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max_cache_size: config.max_cache_size,
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best_block: RwLock::new(BestBlock::default()),
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blocks: RwLock::new(HashMap::new()),
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block_details: RwLock::new(HashMap::new()),
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block_hashes: RwLock::new(HashMap::new()),
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transaction_addresses: RwLock::new(HashMap::new()),
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block_logs: RwLock::new(HashMap::new()),
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blocks_blooms: RwLock::new(HashMap::new()),
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block_receipts: RwLock::new(HashMap::new()),
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extras_db: extras_db,
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blocks_db: blocks_db,
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cache_man: RwLock::new(cache_man),
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bloom_indexer: BloomIndexer::new(BLOOM_INDEX_SIZE, BLOOM_LEVELS)
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};
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// load best block
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let best_block_hash = match bc.extras_db.get(b"best").unwrap() {
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Some(best) => H256::from_slice(&best),
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None => {
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// best block does not exist
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// we need to insert genesis into the cache
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let block = BlockView::new(genesis);
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let header = block.header_view();
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let hash = block.sha3();
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let details = BlockDetails {
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number: header.number(),
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total_difficulty: header.difficulty(),
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parent: header.parent_hash(),
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children: vec![]
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};
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bc.blocks_db.put(&hash, genesis).unwrap();
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let batch = DBTransaction::new();
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batch.put_extras(&hash, &details);
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batch.put_extras(&header.number(), &hash);
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batch.put(b"best", &hash).unwrap();
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bc.extras_db.write(batch).unwrap();
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hash
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}
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};
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{
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let mut best_block = bc.best_block.write().unwrap();
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best_block.number = bc.block_number(&best_block_hash).unwrap();
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best_block.total_difficulty = bc.block_details(&best_block_hash).unwrap().total_difficulty;
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best_block.hash = best_block_hash;
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}
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bc
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}
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/// Set the cache configuration.
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pub fn configure_cache(&mut self, pref_cache_size: usize, max_cache_size: usize) {
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self.pref_cache_size = pref_cache_size;
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self.max_cache_size = max_cache_size;
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}
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/// Returns a tree route between `from` and `to`, which is a tuple of:
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///
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/// - a vector of hashes of all blocks, ordered from `from` to `to`.
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///
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/// - common ancestor of these blocks.
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///
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/// - an index where best common ancestor would be
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///
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/// 1.) from newer to older
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///
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/// - bc: `A1 -> A2 -> A3 -> A4 -> A5`
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/// - from: A5, to: A4
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/// - route:
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///
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/// ```json
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/// { blocks: [A5], ancestor: A4, index: 1 }
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/// ```
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///
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/// 2.) from older to newer
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///
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/// - bc: `A1 -> A2 -> A3 -> A4 -> A5`
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/// - from: A3, to: A4
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/// - route:
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///
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/// ```json
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/// { blocks: [A4], ancestor: A3, index: 0 }
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/// ```
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///
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/// 3.) fork:
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///
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/// - bc:
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///
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/// ```text
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/// A1 -> A2 -> A3 -> A4
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/// -> B3 -> B4
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/// ```
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/// - from: B4, to: A4
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/// - route:
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///
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/// ```json
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/// { blocks: [B4, B3, A3, A4], ancestor: A2, index: 2 }
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/// ```
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pub fn tree_route(&self, from: H256, to: H256) -> TreeRoute {
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let mut from_branch = vec![];
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let mut to_branch = vec![];
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let mut from_details = self.block_details(&from).expect(&format!("0. Expected to find details for block {:?}", from));
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let mut to_details = self.block_details(&to).expect(&format!("1. Expected to find details for block {:?}", to));
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let mut current_from = from;
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let mut current_to = to;
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// reset from && to to the same level
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while from_details.number > to_details.number {
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from_branch.push(current_from);
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current_from = from_details.parent.clone();
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from_details = self.block_details(&from_details.parent).expect(&format!("2. Expected to find details for block {:?}", from_details.parent));
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}
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while to_details.number > from_details.number {
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to_branch.push(current_to);
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current_to = to_details.parent.clone();
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to_details = self.block_details(&to_details.parent).expect(&format!("3. Expected to find details for block {:?}", to_details.parent));
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}
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assert_eq!(from_details.number, to_details.number);
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// move to shared parent
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while current_from != current_to {
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from_branch.push(current_from);
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current_from = from_details.parent.clone();
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from_details = self.block_details(&from_details.parent).expect(&format!("4. Expected to find details for block {:?}", from_details.parent));
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to_branch.push(current_to);
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current_to = to_details.parent.clone();
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to_details = self.block_details(&to_details.parent).expect(&format!("5. Expected to find details for block {:?}", from_details.parent));
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}
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let index = from_branch.len();
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from_branch.extend(to_branch.into_iter().rev());
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TreeRoute {
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blocks: from_branch,
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ancestor: current_from,
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index: index
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}
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}
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/// Inserts the block into backing cache database.
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/// Expects the block to be valid and already verified.
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/// If the block is already known, does nothing.
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pub fn insert_block(&self, bytes: &[u8], receipts: Vec<Receipt>) {
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// create views onto rlp
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let block = BlockView::new(bytes);
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let header = block.header_view();
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let hash = header.sha3();
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if self.is_known(&hash) {
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return;
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}
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// store block in db
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self.blocks_db.put(&hash, &bytes).unwrap();
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let info = self.block_info(bytes);
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self.apply_update(ExtrasUpdate {
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block_hashes: self.prepare_block_hashes_update(bytes, &info),
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block_details: self.prepare_block_details_update(bytes, &info),
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block_receipts: self.prepare_block_receipts_update(receipts, &info),
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transactions_addresses: self.prepare_transaction_addresses_update(bytes, &info),
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blocks_blooms: self.prepare_block_blooms_update(bytes, &info),
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info: info
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});
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}
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/// Applies extras update.
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fn apply_update(&self, update: ExtrasUpdate) {
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let batch = DBTransaction::new();
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batch.put(b"best", &update.info.hash).unwrap();
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// update best block
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let mut best_block = self.best_block.write().unwrap();
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match update.info.location {
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BlockLocation::Branch => (),
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_ => {
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*best_block = BestBlock {
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hash: update.info.hash,
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number: update.info.number,
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total_difficulty: update.info.total_difficulty
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};
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}
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}
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let mut write_hashes = self.block_hashes.write().unwrap();
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for (number, hash) in &update.block_hashes {
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batch.put_extras(number, hash);
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write_hashes.remove(number);
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}
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let mut write_details = self.block_details.write().unwrap();
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for (hash, details) in update.block_details.into_iter() {
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batch.put_extras(&hash, &details);
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write_details.insert(hash, details);
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}
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let mut write_receipts = self.block_receipts.write().unwrap();
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for (hash, receipt) in &update.block_receipts {
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batch.put_extras(hash, receipt);
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write_receipts.remove(hash);
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}
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let mut write_txs = self.transaction_addresses.write().unwrap();
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for (hash, tx_address) in &update.transactions_addresses {
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batch.put_extras(hash, tx_address);
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write_txs.remove(hash);
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}
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let mut write_blocks_blooms = self.blocks_blooms.write().unwrap();
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for (bloom_hash, blocks_bloom) in &update.blocks_blooms {
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batch.put_extras(bloom_hash, blocks_bloom);
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write_blocks_blooms.remove(bloom_hash);
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}
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// update extras database
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self.extras_db.write(batch).unwrap();
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}
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/// Get inserted block info which is critical to preapre extras updates.
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fn block_info(&self, block_bytes: &[u8]) -> BlockInfo {
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let block = BlockView::new(block_bytes);
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let header = block.header_view();
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let hash = block.sha3();
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let number = header.number();
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let parent_hash = header.parent_hash();
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let parent_details = self.block_details(&parent_hash).expect(format!("Invalid parent hash: {:?}", parent_hash).as_ref());
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let total_difficulty = parent_details.total_difficulty + header.difficulty();
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let is_new_best = total_difficulty > self.best_block_total_difficulty();
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BlockInfo {
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hash: hash,
|
|
number: number,
|
|
total_difficulty: total_difficulty,
|
|
location: if is_new_best {
|
|
// on new best block we need to make sure that all ancestors
|
|
// are moved to "canon chain"
|
|
// find the route between old best block and the new one
|
|
let best_hash = self.best_block_hash();
|
|
let route = self.tree_route(best_hash, parent_hash);
|
|
|
|
assert_eq!(number, parent_details.number + 1);
|
|
|
|
match route.blocks.len() {
|
|
0 => BlockLocation::CanonChain,
|
|
_ => BlockLocation::BranchBecomingCanonChain {
|
|
ancestor: route.ancestor,
|
|
route: route.blocks.into_iter().skip(route.index).collect()
|
|
}
|
|
}
|
|
} else {
|
|
BlockLocation::Branch
|
|
}
|
|
}
|
|
}
|
|
|
|
/// This function returns modified block hashes.
|
|
fn prepare_block_hashes_update(&self, block_bytes: &[u8], info: &BlockInfo) -> HashMap<BlockNumber, H256> {
|
|
let mut block_hashes = HashMap::new();
|
|
let block = BlockView::new(block_bytes);
|
|
let header = block.header_view();
|
|
let number = header.number();
|
|
|
|
match info.location {
|
|
BlockLocation::Branch => (),
|
|
BlockLocation::CanonChain => {
|
|
block_hashes.insert(number, info.hash.clone());
|
|
},
|
|
BlockLocation::BranchBecomingCanonChain { ref ancestor, ref route } => {
|
|
let ancestor_number = self.block_number(ancestor).unwrap();
|
|
let start_number = ancestor_number + 1;
|
|
|
|
for (index, hash) in route.iter().cloned().enumerate() {
|
|
block_hashes.insert(start_number + index as BlockNumber, hash);
|
|
}
|
|
|
|
block_hashes.insert(number, info.hash.clone());
|
|
}
|
|
}
|
|
|
|
block_hashes
|
|
}
|
|
|
|
/// This function returns modified block details.
|
|
fn prepare_block_details_update(&self, block_bytes: &[u8], info: &BlockInfo) -> HashMap<H256, BlockDetails> {
|
|
let block = BlockView::new(block_bytes);
|
|
let header = block.header_view();
|
|
let parent_hash = header.parent_hash();
|
|
|
|
// update parent
|
|
let mut parent_details = self.block_details(&parent_hash).expect(format!("Invalid parent hash: {:?}", parent_hash).as_ref());
|
|
parent_details.children.push(info.hash.clone());
|
|
|
|
// create current block details
|
|
let details = BlockDetails {
|
|
number: header.number(),
|
|
total_difficulty: info.total_difficulty,
|
|
parent: parent_hash.clone(),
|
|
children: vec![]
|
|
};
|
|
|
|
// write to batch
|
|
let mut block_details = HashMap::new();
|
|
block_details.insert(parent_hash, parent_details);
|
|
block_details.insert(info.hash.clone(), details);
|
|
block_details
|
|
}
|
|
|
|
/// This function returns modified block receipts.
|
|
fn prepare_block_receipts_update(&self, receipts: Vec<Receipt>, info: &BlockInfo) -> HashMap<H256, BlockReceipts> {
|
|
let mut block_receipts = HashMap::new();
|
|
block_receipts.insert(info.hash.clone(), BlockReceipts::new(receipts));
|
|
block_receipts
|
|
}
|
|
|
|
/// This function returns modified transaction addresses.
|
|
fn prepare_transaction_addresses_update(&self, block_bytes: &[u8], info: &BlockInfo) -> HashMap<H256, TransactionAddress> {
|
|
let block = BlockView::new(block_bytes);
|
|
let transaction_hashes = block.transaction_hashes();
|
|
|
|
transaction_hashes.into_iter()
|
|
.enumerate()
|
|
.fold(HashMap::new(), |mut acc, (i ,tx_hash)| {
|
|
acc.insert(tx_hash, TransactionAddress {
|
|
block_hash: info.hash.clone(),
|
|
index: i
|
|
});
|
|
acc
|
|
})
|
|
}
|
|
|
|
/// This functions returns modified blocks blooms.
|
|
///
|
|
/// To accelerate blooms lookups, blomms are stored in multiple
|
|
/// layers (BLOOM_LEVELS, currently 3).
|
|
/// ChainFilter is responsible for building and rebuilding these layers.
|
|
/// It returns them in HashMap, where values are Blooms and
|
|
/// keys are BloomIndexes. BloomIndex represents bloom location on one
|
|
/// of these layers.
|
|
///
|
|
/// To reduce number of queries to databse, block blooms are stored
|
|
/// in BlocksBlooms structure which contains info about several
|
|
/// (BLOOM_INDEX_SIZE, currently 16) consecutive blocks blooms.
|
|
///
|
|
/// Later, BloomIndexer is used to map bloom location on filter layer (BloomIndex)
|
|
/// to bloom location in database (BlocksBloomLocation).
|
|
///
|
|
fn prepare_block_blooms_update(&self, block_bytes: &[u8], info: &BlockInfo) -> HashMap<H256, BlocksBlooms> {
|
|
let block = BlockView::new(block_bytes);
|
|
let header = block.header_view();
|
|
|
|
let modified_blooms = match info.location {
|
|
BlockLocation::Branch => HashMap::new(),
|
|
BlockLocation::CanonChain => {
|
|
ChainFilter::new(self, self.bloom_indexer.index_size(), self.bloom_indexer.levels())
|
|
.add_bloom(&header.log_bloom(), header.number() as usize)
|
|
},
|
|
BlockLocation::BranchBecomingCanonChain { ref ancestor, ref route } => {
|
|
let ancestor_number = self.block_number(ancestor).unwrap();
|
|
let start_number = ancestor_number + 1;
|
|
|
|
let mut blooms: Vec<H2048> = route.iter()
|
|
.map(|hash| self.block(hash).unwrap())
|
|
.map(|bytes| BlockView::new(&bytes).header_view().log_bloom())
|
|
.collect();
|
|
|
|
blooms.push(header.log_bloom());
|
|
|
|
ChainFilter::new(self, self.bloom_indexer.index_size(), self.bloom_indexer.levels())
|
|
.reset_chain_head(&blooms, start_number as usize, self.best_block_number() as usize)
|
|
}
|
|
};
|
|
|
|
modified_blooms.into_iter()
|
|
.fold(HashMap::new(), | mut acc, (bloom_index, bloom) | {
|
|
{
|
|
let location = self.bloom_indexer.location(&bloom_index);
|
|
let mut blocks_blooms = acc
|
|
.entry(location.hash.clone())
|
|
.or_insert_with(|| self.blocks_blooms(&location.hash).unwrap_or_else(BlocksBlooms::new));
|
|
assert_eq!(self.bloom_indexer.index_size(), blocks_blooms.blooms.len());
|
|
blocks_blooms.blooms[location.index] = bloom;
|
|
}
|
|
acc
|
|
})
|
|
}
|
|
|
|
/// Get best block hash.
|
|
pub fn best_block_hash(&self) -> H256 {
|
|
self.best_block.read().unwrap().hash.clone()
|
|
}
|
|
|
|
/// Get best block number.
|
|
pub fn best_block_number(&self) -> BlockNumber {
|
|
self.best_block.read().unwrap().number
|
|
}
|
|
|
|
/// Get best block total difficulty.
|
|
pub fn best_block_total_difficulty(&self) -> U256 {
|
|
self.best_block.read().unwrap().total_difficulty
|
|
}
|
|
|
|
/// Get block blooms.
|
|
fn blocks_blooms(&self, hash: &H256) -> Option<BlocksBlooms> {
|
|
self.query_extras(hash, &self.blocks_blooms)
|
|
}
|
|
|
|
fn query_extras<K, T>(&self, hash: &K, cache: &RwLock<HashMap<K, T>>) -> Option<T> where
|
|
T: Clone + Decodable + ExtrasIndexable,
|
|
K: ExtrasSliceConvertable + Eq + Hash + Clone {
|
|
{
|
|
let read = cache.read().unwrap();
|
|
if let Some(v) = read.get(hash) {
|
|
return Some(v.clone());
|
|
}
|
|
}
|
|
|
|
if let Some(h) = hash.as_h256() {
|
|
self.note_used(CacheID::Extras(T::extras_index(), h.clone()));
|
|
}
|
|
|
|
self.extras_db.get_extras(hash).map(| t: T | {
|
|
let mut write = cache.write().unwrap();
|
|
write.insert(hash.clone(), t.clone());
|
|
t
|
|
})
|
|
}
|
|
|
|
fn query_extras_exist<K, T>(&self, hash: &K, cache: &RwLock<HashMap<K, T>>) -> bool where
|
|
K: ExtrasSliceConvertable + Eq + Hash + Clone,
|
|
T: ExtrasIndexable {
|
|
{
|
|
let read = cache.read().unwrap();
|
|
if let Some(_) = read.get(hash) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
self.extras_db.extras_exists::<_, T>(hash)
|
|
}
|
|
|
|
/// Get current cache size.
|
|
pub fn cache_size(&self) -> CacheSize {
|
|
CacheSize {
|
|
blocks: self.blocks.read().unwrap().heap_size_of_children(),
|
|
block_details: self.block_details.read().unwrap().heap_size_of_children(),
|
|
transaction_addresses: self.transaction_addresses.read().unwrap().heap_size_of_children(),
|
|
block_logs: self.block_logs.read().unwrap().heap_size_of_children(),
|
|
blocks_blooms: self.blocks_blooms.read().unwrap().heap_size_of_children(),
|
|
block_receipts: self.block_receipts.read().unwrap().heap_size_of_children()
|
|
}
|
|
}
|
|
|
|
/// Let the cache system know that a cacheable item has been used.
|
|
fn note_used(&self, id: CacheID) {
|
|
let mut cache_man = self.cache_man.write().unwrap();
|
|
if !cache_man.cache_usage[0].contains(&id) {
|
|
cache_man.cache_usage[0].insert(id.clone());
|
|
if cache_man.in_use.contains(&id) {
|
|
if let Some(c) = cache_man.cache_usage.iter_mut().skip(1).find(|e|e.contains(&id)) {
|
|
c.remove(&id);
|
|
}
|
|
} else {
|
|
cache_man.in_use.insert(id);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Ticks our cache system and throws out any old data.
|
|
pub fn collect_garbage(&self) {
|
|
if self.cache_size().total() < self.pref_cache_size { return; }
|
|
|
|
for _ in 0..COLLECTION_QUEUE_SIZE {
|
|
{
|
|
let mut cache_man = self.cache_man.write().unwrap();
|
|
let mut blocks = self.blocks.write().unwrap();
|
|
let mut block_details = self.block_details.write().unwrap();
|
|
let mut block_hashes = self.block_hashes.write().unwrap();
|
|
let mut transaction_addresses = self.transaction_addresses.write().unwrap();
|
|
let mut block_logs = self.block_logs.write().unwrap();
|
|
let mut blocks_blooms = self.blocks_blooms.write().unwrap();
|
|
let mut block_receipts = self.block_receipts.write().unwrap();
|
|
|
|
for id in cache_man.cache_usage.pop_back().unwrap().into_iter() {
|
|
cache_man.in_use.remove(&id);
|
|
match id {
|
|
CacheID::Block(h) => { blocks.remove(&h); },
|
|
CacheID::Extras(ExtrasIndex::BlockDetails, h) => { block_details.remove(&h); },
|
|
CacheID::Extras(ExtrasIndex::TransactionAddress, h) => { transaction_addresses.remove(&h); },
|
|
CacheID::Extras(ExtrasIndex::BlockLogBlooms, h) => { block_logs.remove(&h); },
|
|
CacheID::Extras(ExtrasIndex::BlocksBlooms, h) => { blocks_blooms.remove(&h); },
|
|
CacheID::Extras(ExtrasIndex::BlockReceipts, h) => { block_receipts.remove(&h); },
|
|
_ => panic!(),
|
|
}
|
|
}
|
|
cache_man.cache_usage.push_front(HashSet::new());
|
|
|
|
// TODO: handle block_hashes properly.
|
|
block_hashes.clear();
|
|
}
|
|
if self.cache_size().total() < self.max_cache_size { break; }
|
|
}
|
|
|
|
// TODO: m_lastCollection = chrono::system_clock::now();
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use std::str::FromStr;
|
|
use rustc_serialize::hex::FromHex;
|
|
use util::hash::*;
|
|
use blockchain::{BlockProvider, BlockChain, BlockChainConfig};
|
|
use tests::helpers::*;
|
|
use devtools::*;
|
|
|
|
#[test]
|
|
fn valid_tests_extra32() {
|
|
let genesis = "f901fcf901f7a00000000000000000000000000000000000000000000000000000000000000000a01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347948888f1f195afa192cfee860698584c030f4c9db1a0925002c3260b44e44c3edebad1cc442142b03020209df1ab8bb86752edbd2cd7a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421b90100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008302000080832fefd8808454c98c8142a0363659b251bf8b819179874c8cce7b9b983d7f3704cbb58a3b334431f7032871889032d09c281e1236c0c0".from_hex().unwrap();
|
|
|
|
let temp = RandomTempPath::new();
|
|
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
|
|
|
|
let genesis_hash = H256::from_str("3caa2203f3d7c136c0295ed128a7d31cea520b1ca5e27afe17d0853331798942").unwrap();
|
|
|
|
assert_eq!(bc.genesis_hash(), genesis_hash.clone());
|
|
assert_eq!(bc.best_block_number(), 0);
|
|
assert_eq!(bc.best_block_hash(), genesis_hash.clone());
|
|
assert_eq!(bc.block_hash(0), Some(genesis_hash.clone()));
|
|
assert_eq!(bc.block_hash(1), None);
|
|
assert_eq!(bc.block_details(&genesis_hash).unwrap().children, vec![]);
|
|
|
|
let first = "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".from_hex().unwrap();
|
|
|
|
bc.insert_block(&first, vec![]);
|
|
|
|
let first_hash = H256::from_str("a940e5af7d146b3b917c953a82e1966b906dace3a4e355b5b0a4560190357ea1").unwrap();
|
|
|
|
assert_eq!(bc.block_hash(0), Some(genesis_hash.clone()));
|
|
assert_eq!(bc.best_block_number(), 1);
|
|
assert_eq!(bc.best_block_hash(), first_hash.clone());
|
|
assert_eq!(bc.block_hash(1), Some(first_hash.clone()));
|
|
assert_eq!(bc.block_details(&first_hash).unwrap().parent, genesis_hash.clone());
|
|
assert_eq!(bc.block_details(&genesis_hash).unwrap().children, vec![first_hash.clone()]);
|
|
assert_eq!(bc.block_hash(2), None);
|
|
}
|
|
|
|
#[test]
|
|
#[cfg_attr(feature="dev", allow(cyclomatic_complexity))]
|
|
fn test_small_fork() {
|
|
let genesis = "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".from_hex().unwrap();
|
|
let b1 = "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".from_hex().unwrap();
|
|
let b2 = "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".from_hex().unwrap();
|
|
let b3a = "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".from_hex().unwrap();
|
|
let b3b = "f90265f901f9a036fde1253128666fcb95a5956da14a73489e988bb72738717ec1d31e1cee781aa01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347948888f1f195afa192cfee860698584c030f4c9db1a0ab87dc338bfd6f662b1cd90bc0c9e40a1b2146a095312393c9e13ce3a5008b09a0e609b7a7d4b8a2403ec1268627ecd98783627246e8f1b26addb3ff504f76a054a0592fabf92476512952db3a69a2481a42912e668a1ee28c4c322e703bb665f8beb90100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008302008003832fefd882a1f084562791ee80a0fe7098fa7e4ac5d637eea81fb23f8f78346826dbab430068dd9a249d0afa99818853e1a6b201ae3545f866f86402018304cb2f94ec0e71ad0a90ffe1909d27dac207f7680abba42d0284c04062261ca06edc9ce8e7da4cc34067beb325dcad59e5655a164a5100a50bc3eb681b12c716a0abf9053d5de65b1be81fe50d327b84de685efbeecea34e7b747180a6c6023e44c0".from_hex().unwrap();
|
|
|
|
let genesis_hash = H256::from_str("5716670833ec874362d65fea27a7cd35af5897d275b31a44944113111e4e96d2").unwrap();
|
|
let b1_hash = H256::from_str("437e51676ff10756fcfee5edd9159fa41dbcb1b2c592850450371cbecd54ee4f").unwrap();
|
|
let b2_hash = H256::from_str("36fde1253128666fcb95a5956da14a73489e988bb72738717ec1d31e1cee781a").unwrap();
|
|
let b3a_hash = H256::from_str("c208f88c9f5bf7e00840439742c12e5226d9752981f3ec0521bdcb6dd08af277").unwrap();
|
|
let b3b_hash = H256::from_str("bf72270ae0d95c9ea39a6adab994793fddb8c10fba7391e26279474124605d54").unwrap();
|
|
|
|
// b3a is a part of canon chain, whereas b3b is part of sidechain
|
|
let best_block_hash = H256::from_str("c208f88c9f5bf7e00840439742c12e5226d9752981f3ec0521bdcb6dd08af277").unwrap();
|
|
|
|
let temp = RandomTempPath::new();
|
|
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
|
|
bc.insert_block(&b1, vec![]);
|
|
bc.insert_block(&b2, vec![]);
|
|
bc.insert_block(&b3a, vec![]);
|
|
bc.insert_block(&b3b, vec![]);
|
|
|
|
assert_eq!(bc.best_block_hash(), best_block_hash);
|
|
assert_eq!(bc.block_number(&genesis_hash).unwrap(), 0);
|
|
assert_eq!(bc.block_number(&b1_hash).unwrap(), 1);
|
|
assert_eq!(bc.block_number(&b2_hash).unwrap(), 2);
|
|
assert_eq!(bc.block_number(&b3a_hash).unwrap(), 3);
|
|
assert_eq!(bc.block_number(&b3b_hash).unwrap(), 3);
|
|
|
|
assert_eq!(bc.block_hash(0).unwrap(), genesis_hash);
|
|
assert_eq!(bc.block_hash(1).unwrap(), b1_hash);
|
|
assert_eq!(bc.block_hash(2).unwrap(), b2_hash);
|
|
assert_eq!(bc.block_hash(3).unwrap(), b3a_hash);
|
|
|
|
// test trie route
|
|
let r0_1 = bc.tree_route(genesis_hash.clone(), b1_hash.clone());
|
|
assert_eq!(r0_1.ancestor, genesis_hash);
|
|
assert_eq!(r0_1.blocks, [b1_hash.clone()]);
|
|
assert_eq!(r0_1.index, 0);
|
|
|
|
let r0_2 = bc.tree_route(genesis_hash.clone(), b2_hash.clone());
|
|
assert_eq!(r0_2.ancestor, genesis_hash);
|
|
assert_eq!(r0_2.blocks, [b1_hash.clone(), b2_hash.clone()]);
|
|
assert_eq!(r0_2.index, 0);
|
|
|
|
let r1_3a = bc.tree_route(b1_hash.clone(), b3a_hash.clone());
|
|
assert_eq!(r1_3a.ancestor, b1_hash);
|
|
assert_eq!(r1_3a.blocks, [b2_hash.clone(), b3a_hash.clone()]);
|
|
assert_eq!(r1_3a.index, 0);
|
|
|
|
let r1_3b = bc.tree_route(b1_hash.clone(), b3b_hash.clone());
|
|
assert_eq!(r1_3b.ancestor, b1_hash);
|
|
assert_eq!(r1_3b.blocks, [b2_hash.clone(), b3b_hash.clone()]);
|
|
assert_eq!(r1_3b.index, 0);
|
|
|
|
let r3a_3b = bc.tree_route(b3a_hash.clone(), b3b_hash.clone());
|
|
assert_eq!(r3a_3b.ancestor, b2_hash);
|
|
assert_eq!(r3a_3b.blocks, [b3a_hash.clone(), b3b_hash.clone()]);
|
|
assert_eq!(r3a_3b.index, 1);
|
|
|
|
let r1_0 = bc.tree_route(b1_hash.clone(), genesis_hash.clone());
|
|
assert_eq!(r1_0.ancestor, genesis_hash);
|
|
assert_eq!(r1_0.blocks, [b1_hash.clone()]);
|
|
assert_eq!(r1_0.index, 1);
|
|
|
|
let r2_0 = bc.tree_route(b2_hash.clone(), genesis_hash.clone());
|
|
assert_eq!(r2_0.ancestor, genesis_hash);
|
|
assert_eq!(r2_0.blocks, [b2_hash.clone(), b1_hash.clone()]);
|
|
assert_eq!(r2_0.index, 2);
|
|
|
|
let r3a_1 = bc.tree_route(b3a_hash.clone(), b1_hash.clone());
|
|
assert_eq!(r3a_1.ancestor, b1_hash);
|
|
assert_eq!(r3a_1.blocks, [b3a_hash.clone(), b2_hash.clone()]);
|
|
assert_eq!(r3a_1.index, 2);
|
|
|
|
let r3b_1 = bc.tree_route(b3b_hash.clone(), b1_hash.clone());
|
|
assert_eq!(r3b_1.ancestor, b1_hash);
|
|
assert_eq!(r3b_1.blocks, [b3b_hash.clone(), b2_hash.clone()]);
|
|
assert_eq!(r3b_1.index, 2);
|
|
|
|
let r3b_3a = bc.tree_route(b3b_hash.clone(), b3a_hash.clone());
|
|
assert_eq!(r3b_3a.ancestor, b2_hash);
|
|
assert_eq!(r3b_3a.blocks, [b3b_hash.clone(), b3a_hash.clone()]);
|
|
assert_eq!(r3b_3a.index, 1);
|
|
}
|
|
|
|
#[test]
|
|
fn test_reopen_blockchain_db() {
|
|
let genesis = "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".from_hex().unwrap();
|
|
let b1 = "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".from_hex().unwrap();
|
|
let genesis_hash = H256::from_str("5716670833ec874362d65fea27a7cd35af5897d275b31a44944113111e4e96d2").unwrap();
|
|
let b1_hash = H256::from_str("437e51676ff10756fcfee5edd9159fa41dbcb1b2c592850450371cbecd54ee4f").unwrap();
|
|
|
|
let temp = RandomTempPath::new();
|
|
{
|
|
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
|
|
assert_eq!(bc.best_block_hash(), genesis_hash);
|
|
bc.insert_block(&b1, vec![]);
|
|
assert_eq!(bc.best_block_hash(), b1_hash);
|
|
}
|
|
|
|
{
|
|
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
|
|
assert_eq!(bc.best_block_hash(), b1_hash);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn can_contain_arbitrary_block_sequence() {
|
|
let bc_result = generate_dummy_blockchain(50);
|
|
let bc = bc_result.reference();
|
|
assert_eq!(bc.best_block_number(), 49);
|
|
}
|
|
|
|
#[test]
|
|
fn can_collect_garbage() {
|
|
let bc_result = generate_dummy_blockchain(3000);
|
|
let bc = bc_result.reference();
|
|
|
|
assert_eq!(bc.best_block_number(), 2999);
|
|
let best_hash = bc.best_block_hash();
|
|
let mut block_header = bc.block_header(&best_hash);
|
|
|
|
while !block_header.is_none() {
|
|
block_header = bc.block_header(&block_header.unwrap().parent_hash);
|
|
}
|
|
assert!(bc.cache_size().blocks > 1024 * 1024);
|
|
|
|
for _ in 0..2 {
|
|
bc.collect_garbage();
|
|
}
|
|
assert!(bc.cache_size().blocks < 1024 * 1024);
|
|
}
|
|
|
|
#[test]
|
|
fn can_contain_arbitrary_block_sequence_with_extra() {
|
|
let bc_result = generate_dummy_blockchain_with_extra(25);
|
|
let bc = bc_result.reference();
|
|
assert_eq!(bc.best_block_number(), 24);
|
|
}
|
|
|
|
#[test]
|
|
fn can_contain_only_genesis_block() {
|
|
let bc_result = generate_dummy_empty_blockchain();
|
|
let bc = bc_result.reference();
|
|
assert_eq!(bc.best_block_number(), 0);
|
|
}
|
|
|
|
#[test]
|
|
fn find_transaction_by_hash() {
|
|
let genesis = "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".from_hex().unwrap();
|
|
let b1 = "f904a8f901faa0ce1f26f798dd03c8782d63b3e42e79a64eaea5694ea686ac5d7ce3df5171d1aea01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347948888f1f195afa192cfee860698584c030f4c9db1a0a65c2364cd0f1542d761823dc0109c6b072f14c20459598c5455c274601438f4a070616ebd7ad2ed6fb7860cf7e9df00163842351c38a87cac2c1cb193895035a2a05c5b4fc43c2d45787f54e1ae7d27afdb4ad16dfc567c5692070d5c4556e0b1d7b9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000830200000183023ec683021536845685109780a029f07836e4e59229b3a065913afc27702642c683bba689910b2b2fd45db310d3888957e6d004a31802f902a7f85f800a8255f094aaaf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ca0575da4e21b66fa764be5f74da9389e67693d066fb0d1312e19e17e501da00ecda06baf5a5327595f6619dfc2fcb3f2e6fb410b5810af3cb52d0e7508038e91a188f85f010a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ba04fa966bf34b93abc1bcd665554b7f316b50f928477b50be0f3285ead29d18c5ba017bba0eeec1625ab433746955e125d46d80b7fdc97386c51266f842d8e02192ef85f020a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ca004377418ae981cc32b1312b4a427a1d69a821b28db8584f5f2bd8c6d42458adaa053a1dba1af177fac92f3b6af0a9fa46a22adf56e686c93794b6a012bf254abf5f85f030a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ca04fe13febd28a05f4fcb2f451d7ddc2dda56486d9f8c79a62b0ba4da775122615a0651b2382dd402df9ebc27f8cb4b2e0f3cea68dda2dca0ee9603608f0b6f51668f85f040a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ba078e6a0ba086a08f8450e208a399bb2f2d2a0d984acd2517c7c7df66ccfab567da013254002cd45a97fac049ae00afbc43ed0d9961d0c56a3b2382c80ce41c198ddf85f050a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ba0a7174d8f43ea71c8e3ca9477691add8d80ac8e0ed89d8d8b572041eef81f4a54a0534ea2e28ec4da3b5b944b18c51ec84a5cf35f5b3343c5fb86521fd2d388f506f85f060a82520894bbbf5374fce5edbc8e2a8697c15331677e6ebf0b0a801ba034bd04065833536a10c77ee2a43a5371bc6d34837088b861dd9d4b7f44074b59a078807715786a13876d3455716a6b9cb2186b7a4887a5c31160fc877454958616c0".from_hex().unwrap();
|
|
let b1_hash = H256::from_str("f53f268d23a71e85c7d6d83a9504298712b84c1a2ba220441c86eeda0bf0b6e3").unwrap();
|
|
|
|
let temp = RandomTempPath::new();
|
|
let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
|
|
bc.insert_block(&b1, vec![]);
|
|
|
|
let transactions = bc.transactions(&b1_hash).unwrap();
|
|
assert_eq!(transactions.len(), 7);
|
|
for t in transactions {
|
|
assert_eq!(bc.transaction(&bc.transaction_address(&t.hash()).unwrap()).unwrap(), t);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_bloom_filter_simple() {
|
|
let genesis = "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".from_hex().unwrap();
|
|
|
|
// block b1 (child of genesis)
|
|
let b1 = "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".from_hex().unwrap();
|
|
|
|
// block b2 (child of b1)
|
|
let b2 = "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".from_hex().unwrap();
|
|
|
|
// prepare for fork (b1a, child of genesis)
|
|
let b1a = "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".from_hex().unwrap();
|
|
|
|
// fork (b2a, child of b1a, with higher total difficulty)
|
|
let b2a = "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".from_hex().unwrap();
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// fork back :)
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let b3 = "f902ccf901f9a0e6cd7250e4c32b33c906aca30280911c560ac67bd0a05fbeb874f99ac7e7e47aa01dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347948888f1f195afa192cfee860698584c030f4c9db1a0c70a5dc56146e5ef025e4e5726a6373c6f12fd2f6784093a19ead0a7d17fb292a040645cbce4fd399e7bb9160b4c30c40d7ee616a030d4e18ef0ed3b02bdb65911a086e608555f63628417032a011d107b36427af37d153f0da02ce3f90fdd5e8c08b90100000000000000000000000000000000000000000000000200000008000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000080000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000008302004003832fefd882c0e384562791e880a0e3cc39ff775cc0a32f175995b92e84b729e5c9a3563ff899e3555b908bc21d75887c3cde283f4846a6f8cdf8cb01018304cb2f8080b87e6060604052606e8060106000396000f360606040526000357c010000000000000000000000000000000000000000000000000000000090048063c0406226146037576035565b005b60406004506056565b6040518082815260200191505060405180910390f35b6000600560006000508190555060059050606b565b90561ba05258615c63503c0a600d6994b12ea5750d45b3c69668e2a371b4fbfb9eeff6b8a0a11be762bc90491231274a2945be35a43f23c27775b1ff24dd521702fe15f73ec0".from_hex().unwrap();
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let bloom_b1 = H2048::from_str("00000020000000000000000000000000000000000000000002000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000040000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000400000000000000000000002000").unwrap();
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let bloom_b2 = H2048::from_str("00000000000000000000000000000000000000000000020000001000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000008000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
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let bloom_ba = H2048::from_str("00000000000000000000000000000000000000000000020000000800000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000008000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000").unwrap();
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let temp = RandomTempPath::new();
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let bc = BlockChain::new(BlockChainConfig::default(), &genesis, temp.as_path());
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let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
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assert_eq!(blocks_b1, vec![]);
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assert_eq!(blocks_b2, vec![]);
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bc.insert_block(&b1, vec![]);
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let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
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assert_eq!(blocks_b1, vec![1]);
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assert_eq!(blocks_b2, vec![]);
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bc.insert_block(&b2, vec![]);
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let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
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assert_eq!(blocks_b1, vec![1]);
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assert_eq!(blocks_b2, vec![2]);
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// hasn't been forked yet
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bc.insert_block(&b1a, vec![]);
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let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
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let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
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assert_eq!(blocks_b1, vec![1]);
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assert_eq!(blocks_b2, vec![2]);
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assert_eq!(blocks_ba, vec![]);
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// fork has happend
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bc.insert_block(&b2a, vec![]);
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let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
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let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
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assert_eq!(blocks_b1, vec![]);
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assert_eq!(blocks_b2, vec![]);
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assert_eq!(blocks_ba, vec![1, 2]);
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|
|
// fork back
|
|
bc.insert_block(&b3, vec![]);
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|
let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
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|
let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
|
|
let blocks_ba = bc.blocks_with_bloom(&bloom_ba, 0, 5);
|
|
assert_eq!(blocks_b1, vec![1]);
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|
assert_eq!(blocks_b2, vec![2]);
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|
assert_eq!(blocks_ba, vec![3]);
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|
}
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}
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