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Remove locks from the block chain

This commit is contained in:
arkpar 2016-02-22 00:36:59 +01:00
parent c8076b2f9d
commit 778fa92ebe
8 changed files with 75 additions and 112 deletions
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3
Cargo.lock generated
View File

@ -151,6 +151,7 @@ dependencies = [
[[package]]
name = "eth-secp256k1"
version = "0.5.4"
source = "git+https://github.com/arkpar/rust-secp256k1.git#45503e1de68d909b1862e3f2bdb9e1cdfdff3f1e"
dependencies = [
"arrayvec 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
"gcc 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
@ -222,7 +223,7 @@ dependencies = [
"crossbeam 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"elastic-array 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"env_logger 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"eth-secp256k1 0.5.4",
"eth-secp256k1 0.5.4 (git+https://github.com/arkpar/rust-secp256k1.git)",
"ethcore-devtools 0.9.99",
"heapsize 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"igd 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",

2
Cargo.toml
View File

@ -32,4 +32,4 @@ path = "parity/main.rs"
name = "parity"
[profile.release]
debug = true
debug = false

12
ethcore/src/block_queue.rs
View File

@ -99,6 +99,7 @@ impl QueueSignal {
}
struct Verification {
// All locks must be captured in the order declared here.
unverified: Mutex<VecDeque<UnVerifiedBlock>>,
verified: Mutex<VecDeque<PreVerifiedBlock>>,
verifying: Mutex<VecDeque<VerifyingBlock>>,
@ -123,7 +124,7 @@ impl BlockQueue {
let panic_handler = PanicHandler::new_in_arc();
let mut verifiers: Vec<JoinHandle<()>> = Vec::new();
let thread_count = max(::num_cpus::get(), 5) - 0;
let thread_count = max(::num_cpus::get(), 3) - 2;
for i in 0..thread_count {
let verification = verification.clone();
let engine = engine.clone();
@ -137,7 +138,6 @@ impl BlockQueue {
.name(format!("Verifier #{}", i))
.spawn(move || {
panic_handler.catch_panic(move || {
lower_thread_priority();
BlockQueue::verify(verification, engine, more_to_verify, ready_signal, deleting, empty)
}).unwrap()
})
@ -392,7 +392,7 @@ mod tests {
#[test]
fn can_import_blocks() {
let mut queue = get_test_queue();
let queue = get_test_queue();
if let Err(e) = queue.import_block(get_good_dummy_block()) {
panic!("error importing block that is valid by definition({:?})", e);
}
@ -400,7 +400,7 @@ mod tests {
#[test]
fn returns_error_for_duplicates() {
let mut queue = get_test_queue();
let queue = get_test_queue();
if let Err(e) = queue.import_block(get_good_dummy_block()) {
panic!("error importing block that is valid by definition({:?})", e);
}
@ -419,7 +419,7 @@ mod tests {
#[test]
fn returns_ok_for_drained_duplicates() {
let mut queue = get_test_queue();
let queue = get_test_queue();
let block = get_good_dummy_block();
let hash = BlockView::new(&block).header().hash().clone();
if let Err(e) = queue.import_block(block) {
@ -436,7 +436,7 @@ mod tests {
#[test]
fn returns_empty_once_finished() {
let mut queue = get_test_queue();
let queue = get_test_queue();
queue.import_block(get_good_dummy_block()).expect("error importing block that is valid by definition");
queue.flush();
queue.drain(1);

48
ethcore/src/blockchain.rs
View File

@ -16,6 +16,7 @@
//! Blockchain database.
use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrder};
use util::*;
use rocksdb::{DB, WriteBatch, Writable};
use header::*;
@ -147,8 +148,9 @@ struct CacheManager {
///
/// **Does not do input data verification.**
pub struct BlockChain {
pref_cache_size: usize,
max_cache_size: usize,
// All locks must be captured in the order declared here.
pref_cache_size: AtomicUsize,
max_cache_size: AtomicUsize,
best_block: RwLock<BestBlock>,
@ -166,6 +168,7 @@ pub struct BlockChain {
blocks_db: DB,
cache_man: RwLock<CacheManager>,
insert_lock: Mutex<()>
}
impl BlockProvider for BlockChain {
@ -261,8 +264,8 @@ impl BlockChain {
(0..COLLECTION_QUEUE_SIZE).foreach(|_| cache_man.cache_usage.push_back(HashSet::new()));
let bc = BlockChain {
pref_cache_size: 1 << 14,
max_cache_size: 1 << 20,
pref_cache_size: AtomicUsize::new(1 << 14),
max_cache_size: AtomicUsize::new(1 << 20),
best_block: RwLock::new(BestBlock::new()),
blocks: RwLock::new(HashMap::new()),
block_details: RwLock::new(HashMap::new()),
@ -273,6 +276,7 @@ impl BlockChain {
extras_db: extras_db,
blocks_db: blocks_db,
cache_man: RwLock::new(cache_man),
insert_lock: Mutex::new(()),
};
// load best block
@ -315,9 +319,9 @@ impl BlockChain {
}
/// Set the cache configuration.
pub fn configure_cache(&mut self, pref_cache_size: usize, max_cache_size: usize) {
self.pref_cache_size = pref_cache_size;
self.max_cache_size = max_cache_size;
pub fn configure_cache(&self, pref_cache_size: usize, max_cache_size: usize) {
self.pref_cache_size.store(pref_cache_size, AtomicOrder::Relaxed);
self.max_cache_size.store(max_cache_size, AtomicOrder::Relaxed);
}
/// Returns a tree route between `from` and `to`, which is a tuple of:
@ -435,22 +439,26 @@ impl BlockChain {
return;
}
let _lock = self.insert_lock.lock();
// store block in db
self.blocks_db.put(&hash, &bytes).unwrap();
let (batch, new_best, details) = self.block_to_extras_insert_batch(bytes);
// update best block
let mut best_block = self.best_block.write().unwrap();
if let Some(b) = new_best {
*best_block = b;
{
// update best block
let mut best_block = self.best_block.write().unwrap();
if let Some(b) = new_best {
*best_block = b;
}
}
// update caches
let mut write = self.block_details.write().unwrap();
write.remove(&header.parent_hash());
write.insert(hash.clone(), details);
self.note_used(CacheID::Block(hash));
{
// update caches
let mut write = self.block_details.write().unwrap();
write.remove(&header.parent_hash());
write.insert(hash.clone(), details);
self.note_used(CacheID::Block(hash));
}
// update extras database
self.extras_db.write(batch).unwrap();
}
@ -622,17 +630,17 @@ impl BlockChain {
/// 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; }
if self.cache_size().total() < self.pref_cache_size.load(AtomicOrder::Relaxed) { 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 cache_man = self.cache_man.write().unwrap();
for id in cache_man.cache_usage.pop_back().unwrap().into_iter() {
cache_man.in_use.remove(&id);
@ -650,7 +658,7 @@ impl BlockChain {
// TODO: handle block_hashes properly.
block_hashes.clear();
}
if self.cache_size().total() < self.max_cache_size { break; }
if self.cache_size().total() < self.max_cache_size.load(AtomicOrder::Relaxed) { break; }
}
// TODO: m_lastCollection = chrono::system_clock::now();

63
ethcore/src/client.rs
View File

@ -169,7 +169,7 @@ impl ClientReport {
/// Blockchain database client backed by a persistent database. Owns and manages a blockchain and a block queue.
/// Call `import_block()` to import a block asynchronously; `flush_queue()` flushes the queue.
pub struct Client {
chain: Arc<RwLock<BlockChain>>,
chain: Arc<BlockChain>,
engine: Arc<Box<Engine>>,
state_db: Mutex<JournalDB>,
block_queue: BlockQueue,
@ -190,7 +190,7 @@ impl Client {
dir.push(format!("v{}-sec-pruned", CLIENT_DB_VER_STR));
let path = dir.as_path();
let gb = spec.genesis_block();
let chain = Arc::new(RwLock::new(BlockChain::new(&gb, path)));
let chain = Arc::new(BlockChain::new(&gb, path));
let mut opts = Options::new();
opts.set_max_open_files(256);
opts.create_if_missing(true);
@ -258,13 +258,13 @@ impl Client {
}
let header = &block.header;
if let Err(e) = verify_block_family(&header, &block.bytes, self.engine.deref().deref(), self.chain.read().unwrap().deref()) {
if let Err(e) = verify_block_family(&header, &block.bytes, self.engine.deref().deref(), self.chain.deref()) {
warn!(target: "client", "Stage 3 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
self.block_queue.mark_as_bad(&header.hash());
bad.insert(block.header.hash());
break;
};
let parent = match self.chain.read().unwrap().block_header(&header.parent_hash) {
let parent = match self.chain.block_header(&header.parent_hash) {
Some(p) => p,
None => {
warn!(target: "client", "Block import failed for #{} ({}): Parent not found ({}) ", header.number(), header.hash(), header.parent_hash);
@ -278,7 +278,7 @@ impl Client {
last_hashes.resize(256, H256::new());
last_hashes[0] = header.parent_hash.clone();
for i in 0..255 {
match self.chain.read().unwrap().block_details(&last_hashes[i]) {
match self.chain.block_details(&last_hashes[i]) {
Some(details) => {
last_hashes[i + 1] = details.parent.clone();
},
@ -304,9 +304,9 @@ impl Client {
good_blocks.push(header.hash().clone());
self.chain.write().unwrap().insert_block(&block.bytes); //TODO: err here?
self.chain.insert_block(&block.bytes); //TODO: err here?
let ancient = if header.number() >= HISTORY { Some(header.number() - HISTORY) } else { None };
match result.drain().commit(header.number(), &header.hash(), ancient.map(|n|(n, self.chain.read().unwrap().block_hash(n).unwrap()))) {
match result.drain().commit(header.number(), &header.hash(), ancient.map(|n|(n, self.chain.block_hash(n).unwrap()))) {
Ok(_) => (),
Err(e) => {
warn!(target: "client", "State DB commit failed: {:?}", e);
@ -331,7 +331,7 @@ impl Client {
/// Get info on the cache.
pub fn cache_info(&self) -> CacheSize {
self.chain.read().unwrap().cache_size()
self.chain.cache_size()
}
/// Get the report.
@ -341,12 +341,12 @@ impl Client {
/// Tick the client.
pub fn tick(&self) {
self.chain.read().unwrap().collect_garbage();
self.chain.collect_garbage();
}
/// Set up the cache behaviour.
pub fn configure_cache(&self, pref_cache_size: usize, max_cache_size: usize) {
self.chain.write().unwrap().configure_cache(pref_cache_size, max_cache_size);
self.chain.configure_cache(pref_cache_size, max_cache_size);
}
fn block_hash(chain: &BlockChain, id: BlockId) -> Option<H256> {
@ -361,14 +361,12 @@ impl Client {
impl BlockChainClient for Client {
fn block_header(&self, id: BlockId) -> Option<Bytes> {
let chain = self.chain.read().unwrap();
Self::block_hash(&chain, id).and_then(|hash| chain.block(&hash).map(|bytes| BlockView::new(&bytes).rlp().at(0).as_raw().to_vec()))
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block(&hash).map(|bytes| BlockView::new(&bytes).rlp().at(0).as_raw().to_vec()))
}
fn block_body(&self, id: BlockId) -> Option<Bytes> {
let chain = self.chain.read().unwrap();
Self::block_hash(&chain, id).and_then(|hash| {
chain.block(&hash).map(|bytes| {
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash).map(|bytes| {
let rlp = Rlp::new(&bytes);
let mut body = RlpStream::new_list(2);
body.append_raw(rlp.at(1).as_raw(), 1);
@ -379,24 +377,21 @@ impl BlockChainClient for Client {
}
fn block(&self, id: BlockId) -> Option<Bytes> {
let chain = self.chain.read().unwrap();
Self::block_hash(&chain, id).and_then(|hash| {
chain.block(&hash)
Self::block_hash(&self.chain, id).and_then(|hash| {
self.chain.block(&hash)
})
}
fn block_status(&self, id: BlockId) -> BlockStatus {
let chain = self.chain.read().unwrap();
match Self::block_hash(&chain, id) {
Some(ref hash) if chain.is_known(hash) => BlockStatus::InChain,
match Self::block_hash(&self.chain, id) {
Some(ref hash) if self.chain.is_known(hash) => BlockStatus::InChain,
Some(hash) => self.block_queue.block_status(&hash),
None => BlockStatus::Unknown
}
}
fn block_total_difficulty(&self, id: BlockId) -> Option<U256> {
let chain = self.chain.read().unwrap();
Self::block_hash(&chain, id).and_then(|hash| chain.block_details(&hash)).map(|d| d.total_difficulty)
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block_details(&hash)).map(|d| d.total_difficulty)
}
fn code(&self, address: &Address) -> Option<Bytes> {
@ -404,18 +399,17 @@ impl BlockChainClient for Client {
}
fn transaction(&self, id: TransactionId) -> Option<LocalizedTransaction> {
let chain = self.chain.read().unwrap();
match id {
TransactionId::Hash(ref hash) => chain.transaction_address(hash),
TransactionId::Location(id, index) => Self::block_hash(&chain, id).map(|hash| TransactionAddress {
TransactionId::Hash(ref hash) => self.chain.transaction_address(hash),
TransactionId::Location(id, index) => Self::block_hash(&self.chain, id).map(|hash| TransactionAddress {
block_hash: hash,
index: index
})
}.and_then(|address| chain.transaction(&address))
}.and_then(|address| self.chain.transaction(&address))
}
fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute> {
self.chain.read().unwrap().tree_route(from.clone(), to.clone())
self.chain.tree_route(from.clone(), to.clone())
}
fn state_data(&self, _hash: &H256) -> Option<Bytes> {
@ -428,7 +422,7 @@ impl BlockChainClient for Client {
fn import_block(&self, bytes: Bytes) -> ImportResult {
let header = BlockView::new(&bytes).header();
if self.chain.read().unwrap().is_known(&header.hash()) {
if self.chain.is_known(&header.hash()) {
return Err(ImportError::AlreadyInChain);
}
if self.block_status(BlockId::Hash(header.parent_hash)) == BlockStatus::Unknown {
@ -446,13 +440,12 @@ impl BlockChainClient for Client {
}
fn chain_info(&self) -> BlockChainInfo {
let chain = self.chain.read().unwrap();
BlockChainInfo {
total_difficulty: chain.best_block_total_difficulty(),
pending_total_difficulty: chain.best_block_total_difficulty(),
genesis_hash: chain.genesis_hash(),
best_block_hash: chain.best_block_hash(),
best_block_number: From::from(chain.best_block_number())
total_difficulty: self.chain.best_block_total_difficulty(),
pending_total_difficulty: self.chain.best_block_total_difficulty(),
genesis_hash: self.chain.genesis_hash(),
best_block_hash: self.chain.best_block_hash(),
best_block_number: From::from(self.chain.best_block_number())
}
}
}

14
ethcore/src/verification.rs
View File

@ -57,12 +57,18 @@ pub fn verify_block_basic(header: &Header, bytes: &[u8], engine: &Engine) -> Res
/// Still operates on a individual block
/// Returns a PreVerifiedBlock structure populated with transactions
pub fn verify_block_unordered(header: Header, bytes: Bytes, engine: &Engine) -> Result<PreVerifiedBlock, Error> {
try!(engine.verify_block_unordered(&header, Some(&bytes)));
for u in Rlp::new(&bytes).at(2).iter().map(|rlp| rlp.as_val::<Header>()) {
try!(engine.verify_block_unordered(&u, None));
}
// Verify transactions.
let mut transactions = Vec::new();
let v = BlockView::new(&bytes);
for t in v.transactions() {
try!(engine.verify_transaction(&t, &header));
transactions.push(t);
{
let v = BlockView::new(&bytes);
for t in v.transactions() {
try!(engine.verify_transaction(&t, &header));
transactions.push(t);
}
}
Ok(PreVerifiedBlock {
header: header,

2
util/src/lib.rs
View File

@ -143,7 +143,6 @@ pub mod network;
pub mod log;
pub mod panics;
pub mod keys;
mod thread;
pub use common::*;
pub use misc::*;
@ -164,5 +163,4 @@ pub use semantic_version::*;
pub use network::*;
pub use io::*;
pub use log::*;
pub use thread::*;

43
util/src/thread.rs
View File

@ -1,43 +0,0 @@
// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
//! Thread management helpers
use libc::{c_int, pthread_self, pthread_t};
#[repr(C)]
struct sched_param {
priority: c_int,
padding: c_int,
}
extern {
fn setpriority(which: c_int, who: c_int, prio: c_int) -> c_int;
fn pthread_setschedparam(thread: pthread_t, policy: c_int, param: *const sched_param) -> c_int;
}
const PRIO_DARWIN_THREAD: c_int = 3;
const PRIO_DARWIN_BG: c_int = 0x1000;
const SCHED_RR: c_int = 2;
/// Lower thread priority and put it into background mode
#[cfg(target_os="macos")]
pub fn lower_thread_priority() {
let sp = sched_param { priority: 0, padding: 0 };
if unsafe { pthread_setschedparam(pthread_self(), SCHED_RR, &sp) } == -1 {
trace!("Could not decrease thread piority");
}
//unsafe { setpriority(PRIO_DARWIN_THREAD, 0, PRIO_DARWIN_BG); }
}