Integrating TransactionQueue with client

Cargo.lock

@@ -125,6 +125,14 @@ dependencies = [
  "libc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "deque"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "docopt"
 version = "0.6.78"
@@ -259,6 +267,7 @@ dependencies = [
  "heapsize 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -629,6 +638,16 @@ dependencies = [
  "libc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rayon"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "deque 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "regex"
 version = "0.1.54"

ethcore/src/client.rs

@@ -123,6 +123,9 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get block total difficulty.
 	fn block_total_difficulty(&self, id: BlockId) -> Option<U256>;
 
+	/// Get address nonce.
+	fn nonce(&self, address: &Address) -> U256;
+
 	/// Get address code.
 	fn code(&self, address: &Address) -> Option<Bytes>;
 
@@ -445,6 +448,10 @@ impl BlockChainClient for Client {
 		Self::block_hash(&chain, id).and_then(|hash| chain.block_details(&hash)).map(|d| d.total_difficulty)
 	}
 
+	fn nonce(&self, address: &Address) -> U256 {
+		self.state().nonce(address)
+	}
+
 	fn code(&self, address: &Address) -> Option<Bytes> {
 		self.state().code(address)
 	}

sync/Cargo.toml

@@ -17,6 +17,7 @@ time = "0.1.34"
 rand = "0.3.13"
 heapsize = "0.3"
 rustc-serialize = "0.3"
+rayon = "0.3.1"
 
 [features]
 default = []

sync/src/chain.rs

@@ -30,14 +30,17 @@
 ///
 
 use util::*;
+use rayon::prelude::*;
 use std::mem::{replace};
-use ethcore::views::{HeaderView};
+use ethcore::views::{HeaderView, BlockView};
 use ethcore::header::{BlockNumber, Header as BlockHeader};
 use ethcore::client::{BlockChainClient, BlockStatus, BlockId};
 use range_collection::{RangeCollection, ToUsize, FromUsize};
 use ethcore::error::*;
 use ethcore::block::Block;
+use ethcore::transaction::SignedTransaction;
 use io::SyncIo;
+use transaction_queue::TransactionQueue;
 use time;
 use super::SyncConfig;
 
@@ -209,6 +212,8 @@ pub struct ChainSync {
 	max_download_ahead_blocks: usize,
 	/// Network ID
 	network_id: U256,
+	/// Transactions Queue
+	transaction_queue: Mutex<TransactionQueue>,
 }
 
 type RlpResponseResult = Result<Option<(PacketId, RlpStream)>, PacketDecodeError>;
@@ -234,6 +239,7 @@ impl ChainSync {
 			last_send_block_number: 0,
 			max_download_ahead_blocks: max(MAX_HEADERS_TO_REQUEST, config.max_download_ahead_blocks),
 			network_id: config.network_id,
+			transaction_queue: Mutex::new(TransactionQueue::new()),
 		}
 	}
 
@@ -292,6 +298,7 @@ impl ChainSync {
 		self.starting_block = 0;
 		self.highest_block = None;
 		self.have_common_block = false;
+		self.transaction_queue.lock().unwrap().clear();
 		self.starting_block = io.chain().chain_info().best_block_number;
 		self.state = SyncState::NotSynced;
 	}
@@ -913,8 +920,16 @@ impl ChainSync {
 		}
 	}
 	/// Called when peer sends us new transactions
-	fn on_peer_transactions(&mut self, _io: &mut SyncIo, _peer_id: PeerId, _r: &UntrustedRlp) -> Result<(), PacketDecodeError> {
-		Ok(())
+	fn on_peer_transactions(&mut self, io: &mut SyncIo, peer_id: PeerId, r: &UntrustedRlp) -> Result<(), PacketDecodeError> {
+		let chain = io.chain();
+		let item_count = r.item_count();
+		trace!(target: "sync", "{} -> Transactions ({} entries)", peer_id, item_count);
+		let fetch_latest_nonce = |a : &Address| chain.nonce(a);
+		for i in 0..item_count {
+			let tx: SignedTransaction = try!(r.val_at(i));
+			self.transaction_queue.lock().unwrap().add(tx, &fetch_latest_nonce);
+		}
+ 		Ok(())
 	}
 
 	/// Send Status message
@@ -1242,6 +1257,34 @@ impl ChainSync {
 		}
 		self.last_send_block_number = chain.best_block_number;
 	}
+
+	/// called when block is imported to chain, updates transactions queue
+	pub fn chain_new_blocks(&mut self, io: &SyncIo, good: &[H256], bad: &[H256]) {
+		fn fetch_transactions(chain: &BlockChainClient, hash: &H256) -> Vec<SignedTransaction> {
+			let block = chain
+				.block(BlockId::Hash(hash.clone()))
+				.expect("Expected in-chain blocks.");
+			let block = BlockView::new(&block);
+			block.transactions()
+		};
+
+		let chain = io.chain();
+		let good = good.par_iter().map(|h| fetch_transactions(chain, h));
+		let bad = bad.par_iter().map(|h| fetch_transactions(chain, h));
+
+		good.for_each(|txs| {
+			let mut transaction_queue = self.transaction_queue.lock().unwrap();
+			transaction_queue.remove_all(&txs);
+		});
+		bad.for_each(|txs| {
+			// populate sender
+			for tx in &txs {
+				let _sender = tx.sender();
+			}
+			let mut transaction_queue = self.transaction_queue.lock().unwrap();
+			transaction_queue.add_all(txs, |a| chain.nonce(a));
+		});
+	}
 }
 
 #[cfg(test)]
@@ -1571,6 +1614,32 @@ mod tests {
 		assert!(result.is_ok());
 	}
 
+	#[test]
+	fn should_add_transactions_to_queue() {
+		// given
+		let mut client = TestBlockChainClient::new();
+		// client.add_blocks(98, BlocksWith::Uncle);
+		// client.add_blocks(1, BlocksWith::UncleAndTransaction);
+		// client.add_blocks(1, BlocksWith::Transaction);
+		let mut sync = dummy_sync_with_peer(client.block_hash_delta_minus(5));
+
+		let good_blocks = vec![client.block_hash_delta_minus(2)];
+		let bad_blocks = vec![client.block_hash_delta_minus(1)];
+
+		let mut queue = VecDeque::new();
+		let io = TestIo::new(&mut client, &mut queue, None);
+
+		// when
+		sync.chain_new_blocks(&io, &[], &good_blocks);
+		assert_eq!(sync.transaction_queue.lock().unwrap().status().pending, 1);
+		sync.chain_new_blocks(&io, &good_blocks, &bad_blocks);
+
+		// then
+		let status = sync.transaction_queue.lock().unwrap().status();
+		assert_eq!(status.pending, 1);
+		assert_eq!(status.future, 0);
+	}
+
 	#[test]
 	fn returns_requested_block_headers() {
 		let mut client = TestBlockChainClient::new();

sync/src/lib.rs

@@ -54,6 +54,7 @@ extern crate ethcore;
 extern crate env_logger;
 extern crate time;
 extern crate rand;
+extern crate rayon;
 #[macro_use]
 extern crate heapsize;
 
@@ -70,8 +71,7 @@ use io::NetSyncIo;
 mod chain;
 mod io;
 mod range_collection;
-// TODO [todr] Made public to suppress dead code warnings
-pub mod transaction_queue;
+mod transaction_queue;
 
 #[cfg(test)]
 mod tests;
@@ -153,8 +153,14 @@ impl NetworkProtocolHandler<SyncMessage> for EthSync {
 	}
 
 	fn message(&self, io: &NetworkContext<SyncMessage>, message: &SyncMessage) {
-		if let SyncMessage::BlockVerified = *message {
-			self.sync.write().unwrap().chain_blocks_verified(&mut NetSyncIo::new(io, self.chain.deref()));
+		match *message {
+			SyncMessage::BlockVerified => {
+				self.sync.write().unwrap().chain_blocks_verified(&mut NetSyncIo::new(io, self.chain.deref()));
+			},
+			SyncMessage::NewChainBlocks { ref good, ref bad } => {
+				let sync_io = NetSyncIo::new(io, self.chain.deref());
+				self.sync.write().unwrap().chain_new_blocks(&sync_io, good, bad);
+			}
 		}
 	}
 }

sync/src/tests/helpers.rs

@@ -105,6 +105,10 @@ impl BlockChainClient for TestBlockChainClient {
 		Some(U256::zero())
 	}
 
+	fn nonce(&self, _address: &Address) -> U256 {
+		U256::zero()
+	}
+
 	fn code(&self, _address: &Address) -> Option<Bytes> {
 		unimplemented!();
 	}