Merge branch 'master' of github.com:ethcore/parity into jdb_option2

ethcore/src/client.rs

@@ -87,6 +87,8 @@ pub struct ClientConfig {
 	pub blockchain: BlockChainConfig,
 	/// Prefer journal rather than archive.
 	pub prefer_journal: bool,
+	/// The name of the client instance.
+	pub name: String,
 }
 
 impl Default for ClientConfig {
@@ -95,6 +97,7 @@ impl Default for ClientConfig {
 			queue: Default::default(),
 			blockchain: Default::default(),
 			prefer_journal: false,
+			name: Default::default(),
 		}
 	}
 }
@@ -224,7 +227,7 @@ pub struct Client<V = CanonVerifier> where V: Verifier {
 }
 
 const HISTORY: u64 = 1000;
-const CLIENT_DB_VER_STR: &'static str = "5.0";
+const CLIENT_DB_VER_STR: &'static str = "5.2";
 
 impl Client<CanonVerifier> {
 	/// Create a new client with given spec and DB path.

parity/main.rs

@@ -53,6 +53,16 @@ use docopt::Docopt;
 use daemonize::Daemonize;
 use number_prefix::{binary_prefix, Standalone, Prefixed};
 
+fn die_with_message(msg: &str) -> ! {
+	println!("ERROR: {}", msg);
+	exit(1);
+}
+
+#[macro_export]
+macro_rules! die {
+	($($arg:tt)*) => (die_with_message(&format!("{}", format_args!($($arg)*))));
+}
+
 const USAGE: &'static str = r#"
 Parity. Ethereum Client.
   By Wood/Paronyan/Kotewicz/Drwięga/Volf.
@@ -62,13 +72,16 @@ Usage:
   parity daemon <pid-file> [options] [ --no-bootstrap | <enode>... ]
   parity [options] [ --no-bootstrap | <enode>... ]
 
-Options:
+Protocol Options:
   --chain CHAIN            Specify the blockchain type. CHAIN may be either a JSON chain specification file
-                           or frontier, mainnet, morden, or testnet [default: frontier].
+                           or olympic, frontier, homestead, mainnet, morden, or testnet [default: homestead].
+  --testnet                Equivalent to --chain testnet (geth-compatible).
+  --networkid INDEX        Override the network identifier from the chain we are on.
   --archive                Client should not prune the state/storage trie.
-  -d --db-path PATH        Specify the database & configuration directory path [default: $HOME/.parity]
+  -d --datadir PATH        Specify the database & configuration directory path [default: $HOME/.parity]
-  --keys-path PATH         Specify the path for JSON key files to be found [default: $HOME/.web3/keys]
+  --identity NAME          Specify your node's name.
 
+Networking Options:
   --no-bootstrap           Don't bother trying to connect to any nodes initially.
   --listen-address URL     Specify the IP/port on which to listen for peers [default: 0.0.0.0:30304].
   --public-address URL     Specify the IP/port on which peers may connect.
@@ -78,18 +91,32 @@ Options:
   --no-upnp                Disable trying to figure out the correct public adderss over UPnP.
   --node-key KEY           Specify node secret key, either as 64-character hex string or input to SHA3 operation.
 
+API and Console Options:
+  -j --jsonrpc             Enable the JSON-RPC API sever.
+  --jsonrpc-addr HOST      Specify the hostname portion of the JSONRPC API server [default: 127.0.0.1].
+  --jsonrpc-port PORT      Specify the port portion of the JSONRPC API server [default: 8545].
+  --jsonrpc-cors URL       Specify CORS header for JSON-RPC API responses [default: null].
+  --jsonrpc-apis APIS      Specify the APIs available through the JSONRPC interface. APIS is a comma-delimited
+                           list of API name. Possible name are web3, eth and net. [default: web3,eth,net].
+  --rpc                    Equivalent to --jsonrpc (geth-compatible).
+  --rpcaddr HOST           Equivalent to --jsonrpc-addr HOST (geth-compatible).
+  --rpcport PORT           Equivalent to --jsonrpc-port PORT (geth-compatible).
+  --rpcapi APIS            Equivalent to --jsonrpc-apis APIS (geth-compatible).
+  --rpccorsdomain URL      Equivalent to --jsonrpc-cors URL (geth-compatible).
+
+Sealing/Mining Options:
+  --author ADDRESS         Specify the block author (aka "coinbase") address for sending block rewards
+                           from sealed blocks [default: 0037a6b811ffeb6e072da21179d11b1406371c63].
+  --extradata STRING      Specify a custom extra-data for authored blocks, no more than 32 characters.
+
+Memory Footprint Options:
   --cache-pref-size BYTES  Specify the prefered size of the blockchain cache in bytes [default: 16384].
   --cache-max-size BYTES   Specify the maximum size of the blockchain cache in bytes [default: 262144].
   --queue-max-size BYTES   Specify the maximum size of memory to use for block queue [default: 52428800].
+  --cache MEGABYTES        Set total amount of cache to use for the entire system, mutually exclusive with 
+                           other cache options (geth-compatible).
 
-  -j --jsonrpc             Enable the JSON-RPC API sever.
+Miscellaneous Options:
-  --jsonrpc-url URL        Specify URL for JSON-RPC API server [default: 127.0.0.1:8545].
-  --jsonrpc-cors URL       Specify CORS header for JSON-RPC API responses [default: null].
-
-  --author ADDRESS         Specify the block author (aka "coinbase") address for sending block rewards
-                           from sealed blocks [default: 0037a6b811ffeb6e072da21179d11b1406371c63].
-  --extra-data STRING      Specify a custom extra-data for authored blocks, no more than 32 characters.
-
   -l --logging LOGGING     Specify the logging level.
   -v --version             Show information about version.
   -h --help                Show this screen.
@@ -101,14 +128,18 @@ struct Args {
 	arg_pid_file: String,
 	arg_enode: Vec<String>,
 	flag_chain: String,
+	flag_testnet: bool,
 	flag_db_path: String,
+	flag_networkid: Option<String>,
+	flag_identity: String,
+	flag_cache: Option<usize>,
 	flag_keys_path: String,
 	flag_archive: bool,
 	flag_no_bootstrap: bool,
 	flag_listen_address: String,
 	flag_public_address: Option<String>,
 	flag_address: Option<String>,
-	flag_peers: u32,
+	flag_peers: usize,
 	flag_no_discovery: bool,
 	flag_no_upnp: bool,
 	flag_node_key: Option<String>,
@@ -116,8 +147,15 @@ struct Args {
 	flag_cache_max_size: usize,
 	flag_queue_max_size: usize,
 	flag_jsonrpc: bool,
-	flag_jsonrpc_url: String,
+	flag_jsonrpc_addr: String,
+	flag_jsonrpc_port: u16,
 	flag_jsonrpc_cors: String,
+	flag_jsonrpc_apis: String,
+	flag_rpc: bool,
+	flag_rpcaddr: Option<String>,
+	flag_rpcport: Option<u16>,
+	flag_rpccorsdomain: Option<String>,
+	flag_rpcapi: Option<String>,
 	flag_logging: Option<String>,
 	flag_version: bool,
 	flag_author: String,
@@ -151,14 +189,23 @@ fn setup_log(init: &Option<String>) {
 }
 
 #[cfg(feature = "rpc")]
-fn setup_rpc_server(client: Arc<Client>, sync: Arc<EthSync>, url: &str, cors_domain: &str) {
+fn setup_rpc_server(client: Arc<Client>, sync: Arc<EthSync>, url: &str, cors_domain: &str, apis: Vec<&str>) {
 	use rpc::v1::*;
 
 	let mut server = rpc::HttpServer::new(1);
-	server.add_delegate(Web3Client::new().to_delegate());
+	for api in apis.into_iter() {
+		match api {
+			"web3" => server.add_delegate(Web3Client::new().to_delegate()),
+			"net" => server.add_delegate(NetClient::new(&sync).to_delegate()),
+			"eth" => {
 				server.add_delegate(EthClient::new(&client, &sync).to_delegate());
 				server.add_delegate(EthFilterClient::new(&client).to_delegate());
-	server.add_delegate(NetClient::new(&sync).to_delegate());
+			}
+			_ => {
+				die!("{}: Invalid API name to be enabled.", api);
+			}
+		}
+	}
 	server.start_async(url, cors_domain);
 }
 
@@ -179,16 +226,6 @@ By Wood/Paronyan/Kotewicz/Drwięga/Volf.\
 ", version());
 }
 
-fn die_with_message(msg: &str) -> ! {
-	println!("ERROR: {}", msg);
-	exit(1);
-}
-
-#[macro_export]
-macro_rules! die {
-	($($arg:tt)*) => (die_with_message(&format!("{}", format_args!($($arg)*))));
-}
-
 struct Configuration {
 	args: Args
 }
@@ -221,8 +258,11 @@ impl Configuration {
 	}
 
 	fn spec(&self) -> Spec {
+		if self.args.flag_testnet {
+			return ethereum::new_morden();
+		}
 		match self.args.flag_chain.as_ref() {
-			"frontier" | "mainnet" => ethereum::new_frontier(),
+			"frontier" | "homestead" | "mainnet" => ethereum::new_frontier(),
 			"morden" | "testnet" => ethereum::new_morden(),
 			"olympic" => ethereum::new_olympic(),
 			f => Spec::from_json_utf8(contents(f).unwrap_or_else(|_| die!("{}: Couldn't read chain specification file. Sure it exists?", f)).as_ref()),
@@ -276,7 +316,7 @@ impl Configuration {
 		ret.public_address = public;
 		ret.use_secret = self.args.flag_node_key.as_ref().map(|s| Secret::from_str(&s).unwrap_or_else(|_| s.sha3()));
 		ret.discovery_enabled = !self.args.flag_no_discovery;
-		ret.ideal_peers = self.args.flag_peers;
+		ret.ideal_peers = self.args.flag_peers as u32;
 		let mut net_path = PathBuf::from(&self.path());
 		net_path.push("network");
 		ret.config_path = Some(net_path.to_str().unwrap().to_owned());
@@ -307,13 +347,22 @@ impl Configuration {
 		let spec = self.spec();
 		let net_settings = self.net_settings(&spec);
 		let mut sync_config = SyncConfig::default();
-		sync_config.network_id = spec.network_id();
+		sync_config.network_id = self.args.flag_networkid.as_ref().map(|id| U256::from_str(id).unwrap_or_else(|_| die!("{}: Invalid index given with --networkid", id))).unwrap_or(spec.network_id());
 
 		// Build client
 		let mut client_config = ClientConfig::default();
+		match self.args.flag_cache {
+			Some(mb) => {
+				client_config.blockchain.max_cache_size = mb * 1024 * 1024;
+				client_config.blockchain.pref_cache_size = client_config.blockchain.max_cache_size / 2;
+			}
+			None => {
 				client_config.blockchain.pref_cache_size = self.args.flag_cache_pref_size;
 				client_config.blockchain.max_cache_size = self.args.flag_cache_max_size;
+			}
+		}
 		client_config.prefer_journal = !self.args.flag_archive;
+		client_config.name = self.args.flag_identity.clone();
 		client_config.queue.max_mem_use = self.args.flag_queue_max_size;
 		let mut service = ClientService::start(client_config, spec, net_settings, &Path::new(&self.path())).unwrap();
 		let client = service.client().clone();
@@ -324,9 +373,16 @@ impl Configuration {
 		let sync = EthSync::register(service.network(), sync_config, client);
 
 		// Setup rpc
-		if self.args.flag_jsonrpc {
+		if self.args.flag_jsonrpc || self.args.flag_rpc {
-			setup_rpc_server(service.client(), sync.clone(), &self.args.flag_jsonrpc_url, &self.args.flag_jsonrpc_cors);
+			let url = format!("{}:{}",
-			SocketAddr::from_str(&self.args.flag_jsonrpc_url).unwrap_or_else(|_|die!("{}: Invalid JSONRPC listen address given with --jsonrpc-url. Should be of the form 'IP:port'.", self.args.flag_jsonrpc_url));
+				self.args.flag_rpcaddr.as_ref().unwrap_or(&self.args.flag_jsonrpc_addr),
+				self.args.flag_rpcport.unwrap_or(self.args.flag_jsonrpc_port)
+			);
+			SocketAddr::from_str(&url).unwrap_or_else(|_|die!("{}: Invalid JSONRPC listen host/port given.", url));
+			let cors = self.args.flag_rpccorsdomain.as_ref().unwrap_or(&self.args.flag_jsonrpc_cors);
+			// TODO: use this as the API list.
+			let apis = self.args.flag_rpcapi.as_ref().unwrap_or(&self.args.flag_jsonrpc_apis);
+			setup_rpc_server(service.client(), sync.clone(), &url, cors, apis.split(",").collect());
 		}
 
 		// Register IO handler

rpc/src/v1/impls/eth.rs

@@ -312,7 +312,8 @@ impl EthFilter for EthFilterClient {
 					None => Ok(Value::Array(vec![] as Vec<Value>)),
 					Some(info) => match info.filter {
 						PollFilter::Block => {
-							let current_number = client.chain_info().best_block_number;
+							// + 1, cause we want to return hashes including current block hash.
+							let current_number = client.chain_info().best_block_number + 1;
 							let hashes = (info.block_number..current_number).into_iter()
 								.map(BlockId::Number)
 								.filter_map(|id| client.block_hash(id))

sync/src/chain.rs

@@ -900,9 +900,8 @@ impl ChainSync {
 		}
 		match sync.send(peer_id, packet_id, packet) {
 			Err(e) => {
-				warn!(target:"sync", "Error sending request: {:?}", e);
+				debug!(target:"sync", "Error sending request: {:?}", e);
 				sync.disable_peer(peer_id);
-				self.on_peer_aborting(sync, peer_id);
 			}
 			Ok(_) => {
 				let mut peer = self.peers.get_mut(&peer_id).unwrap();
@@ -915,9 +914,8 @@ impl ChainSync {
 	/// Generic packet sender
 	fn send_packet(&mut self, sync: &mut SyncIo, peer_id: PeerId, packet_id: PacketId, packet: Bytes) {
 		if let Err(e) = sync.send(peer_id, packet_id, packet) {
-			warn!(target:"sync", "Error sending packet: {:?}", e);
+			debug!(target:"sync", "Error sending packet: {:?}", e);
 			sync.disable_peer(peer_id);
-			self.on_peer_aborting(sync, peer_id);
 		}
 	}
 	/// Called when peer sends us new transactions

util/src/journaldb.rs

@@ -46,17 +46,17 @@ use std::env;
 /// data nodes that go out of history scope and must be written to disk.
 ///
 /// Commit workflow:
-/// Create a new journal record from the transaction overlay.
+/// 1. Create a new journal record from the transaction overlay.
-/// Inseart each node from the transaction overlay into the History overlay increasing reference
+/// 2. Inseart each node from the transaction overlay into the History overlay increasing reference
 /// count if it is already there. Note that the reference counting is managed by `MemoryDB`
-/// Clear the transaction overlay.
+/// 3. Clear the transaction overlay.
-/// For a canonical journal record that becomes ancient inserts its insertions into the disk DB
+/// 4. For a canonical journal record that becomes ancient inserts its insertions into the disk DB
-/// For each journal record that goes out of the history scope (becomes ancient) remove its
+/// 5. For each journal record that goes out of the history scope (becomes ancient) remove its
 /// insertions from the history overlay, decreasing the reference counter and removing entry if 
 /// if reaches zero.
-/// For a canonical journal record that becomes ancient delete its removals from the disk only if 
+/// 6. For a canonical journal record that becomes ancient delete its removals from the disk only if 
 /// the removed key is not present in the history overlay.
-/// Delete ancient record from memory and disk.
+/// 7. Delete ancient record from memory and disk.
 /// 
 pub struct JournalDB {
 	transaction_overlay: MemoryDB,
@@ -66,13 +66,11 @@ pub struct JournalDB {
 
 struct JournalOverlay {
 	backing_overlay: MemoryDB,
-	journal: VecDeque<JournalEntry>
+	journal: HashMap<u64, Vec<JournalEntry>>
 }
 
 struct JournalEntry {
 	id: H256,
-	index: usize,
-	era: u64,
 	insertions: Vec<H256>,
 	deletions: Vec<H256>,
 }
@@ -200,29 +198,6 @@ impl JournalDB {
 		let mut journal_overlay = self.journal_overlay.as_mut().unwrap().write().unwrap();
 		let batch = DBTransaction::new();
 		{
-			let mut index = 0usize;
-			let mut last;
-
-			while {
-				let record = try!(self.backing.get({
-					let mut r = RlpStream::new_list(3);
-					r.append(&now);
-					r.append(&index);
-					r.append(&&PADDING[..]);
-					last = r.drain();
-					&last
-				}));
-				match record {
-					Some(r) => {
-						assert!(&Rlp::new(&r).val_at::<H256>(0) != id);
-						true
-					},
-					None => false,
-				}
-			} {
-				index += 1;
-			}
-
 			let mut r = RlpStream::new_list(3);
 			let mut tx = self.transaction_overlay.drain();
 			let inserted_keys: Vec<_> = tx.iter().filter_map(|(k, &(_, c))| if c > 0 { Some(k.clone()) } else { None }).collect();
@@ -238,25 +213,33 @@ impl JournalDB {
 				journal_overlay.backing_overlay.emplace(k, v);
 			}
 			r.append(&removed_keys);
-			try!(batch.put(&last, r.as_raw()));
+
+			let mut k = RlpStream::new_list(3);
+			let index = journal_overlay.journal.get(&now).map(|j| j.len()).unwrap_or(0);
+			k.append(&now);
+			k.append(&index);
+			k.append(&&PADDING[..]);
+			try!(batch.put(&k.drain(), r.as_raw()));
 			try!(batch.put(&LATEST_ERA_KEY, &encode(&now)));
-			journal_overlay.journal.push_back(JournalEntry { id: id.clone(), index: index, era: now, insertions: inserted_keys, deletions: removed_keys });
+			journal_overlay.journal.entry(now).or_insert_with(Vec::new).push(JournalEntry { id: id.clone(), insertions: inserted_keys, deletions: removed_keys });
 		}
 
+		let journal_overlay = journal_overlay.deref_mut();
 		// apply old commits' details
 		if let Some((end_era, canon_id)) = end {
+			if let Some(ref mut records) = journal_overlay.journal.get_mut(&end_era) {
 				let mut canon_insertions: Vec<(H256, Bytes)> = Vec::new();
 				let mut canon_deletions: Vec<H256> = Vec::new();
 				let mut overlay_deletions: Vec<H256> = Vec::new();
-			while journal_overlay.journal.front().map_or(false, |e| e.era <= end_era) {
+				let mut index = 0usize;
-				let mut journal = journal_overlay.journal.pop_front().unwrap();
+				for mut journal in records.drain(..) {
 					//delete the record from the db
 					let mut r = RlpStream::new_list(3);
-				r.append(&journal.era);
+					r.append(&end_era);
-				r.append(&journal.index);
+					r.append(&index);
 					r.append(&&PADDING[..]);
 					try!(batch.delete(&r.drain()));
-				trace!("commit: Delete journal for time #{}.{}: {}, (canon was {}): +{} -{} entries", end_era, journal.index, journal.id, canon_id, journal.insertions.len(), journal.deletions.len());
+					trace!("commit: Delete journal for time #{}.{}: {}, (canon was {}): +{} -{} entries", end_era, index, journal.id, canon_id, journal.insertions.len(), journal.deletions.len());
 					{
 						if canon_id == journal.id {
 							for h in &journal.insertions {
@@ -269,8 +252,7 @@ impl JournalDB {
 						}
 						overlay_deletions.append(&mut journal.insertions);
 					}
-				if canon_id == journal.id {
+					index +=1;
-				}
 				}
 				// apply canon inserts first
 				for (k, v) in canon_insertions {
@@ -288,6 +270,8 @@ impl JournalDB {
 				}
 				journal_overlay.backing_overlay.purge();
 			}
+			journal_overlay.journal.remove(&end_era);
+		}
 		try!(self.backing.write(batch));
 		Ok(0 as u32)
 	}
@@ -297,7 +281,7 @@ impl JournalDB {
 	}
 
 	fn read_overlay(db: &Database) -> JournalOverlay {
-		let mut journal = VecDeque::new();
+		let mut journal = HashMap::new();
 		let mut overlay = MemoryDB::new();
 		let mut count = 0;
 		if let Some(val) = db.get(&LATEST_ERA_KEY).expect("Low-level database error.") {
@@ -311,6 +295,7 @@ impl JournalDB {
 					r.append(&&PADDING[..]);
 					&r.drain()
 				}).expect("Low-level database error.") {
+					trace!("read_counters: era={}, index={}", era, index);
 					let rlp = Rlp::new(&rlp_data);
 					let id: H256 = rlp.val_at(0);
 					let insertions = rlp.at(1);
@@ -323,10 +308,8 @@ impl JournalDB {
 						inserted_keys.push(k);
 						count += 1;
 					}
-					journal.push_front(JournalEntry {
+					journal.entry(era).or_insert_with(Vec::new).push(JournalEntry {
 						id: id,
-						index: index,
-						era: era,
 						insertions: inserted_keys,
 						deletions: deletions,
 					});
@@ -413,6 +396,28 @@ mod tests {
 	use super::*;
 	use hashdb::*;
 
+	#[test]
+	fn insert_same_in_fork() {
+		// history is 1
+		let mut jdb = JournalDB::new_temp();
+
+		let x = jdb.insert(b"X");
+		jdb.commit(1, &b"1".sha3(), None).unwrap();
+		jdb.commit(2, &b"2".sha3(), None).unwrap();
+		jdb.commit(3, &b"1002a".sha3(), Some((1, b"1".sha3()))).unwrap();
+		jdb.commit(4, &b"1003a".sha3(), Some((2, b"2".sha3()))).unwrap();
+
+		jdb.remove(&x);
+		jdb.commit(3, &b"1002b".sha3(), Some((1, b"1".sha3()))).unwrap();
+		let x = jdb.insert(b"X");
+		jdb.commit(4, &b"1003b".sha3(), Some((2, b"2".sha3()))).unwrap();
+
+		jdb.commit(5, &b"1004a".sha3(), Some((3, b"1002a".sha3()))).unwrap();
+		jdb.commit(6, &b"1005a".sha3(), Some((4, b"1003a".sha3()))).unwrap();
+
+		assert!(jdb.exists(&x));
+	}
+
 	#[test]
 	fn long_history() {
 		// history is 3
@@ -533,6 +538,7 @@ mod tests {
 		assert!(jdb.exists(&foo));
 	}
 
+
 	#[test]
 	fn reopen() {
 		let mut dir = ::std::env::temp_dir();
@@ -574,20 +580,27 @@ mod tests {
 			// history is 1
 			let foo = jdb.insert(b"foo");
 			jdb.commit(0, &b"0".sha3(), None).unwrap();
+			jdb.commit(1, &b"1".sha3(), Some((0, b"0".sha3()))).unwrap();
+
+			// foo is ancient history.
+
 			jdb.insert(b"foo");
-			jdb.commit(1, &b"1".sha3(), None).unwrap();
+			jdb.commit(2, &b"2".sha3(), Some((1, b"1".sha3()))).unwrap();
 			foo
 		};
 
 		{
 			let mut jdb = JournalDB::new(dir.to_str().unwrap());
 			jdb.remove(&foo);
-			jdb.commit(2, &b"2".sha3(), Some((1, b"1".sha3()))).unwrap();
-			assert!(jdb.exists(&foo));
 			jdb.commit(3, &b"3".sha3(), Some((2, b"2".sha3()))).unwrap();
+			assert!(jdb.exists(&foo));
+			jdb.remove(&foo);
+			jdb.commit(4, &b"4".sha3(), Some((3, b"3".sha3()))).unwrap();
+			jdb.commit(5, &b"5".sha3(), Some((4, b"4".sha3()))).unwrap();
 			assert!(!jdb.exists(&foo));
 		}
 	}
+
 	#[test]
 	fn reopen_fork() {
 		let mut dir = ::std::env::temp_dir();

util/src/network/connection.rs

@@ -190,25 +190,25 @@ impl Connection {
 
 	/// Register this connection with the IO event loop.
 	pub fn register_socket<Host: Handler>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
-		trace!(target: "net", "connection register; token={:?}", reg);
+		trace!(target: "network", "connection register; token={:?}", reg);
 		if let Err(e) = event_loop.register(&self.socket, reg, self.interest, PollOpt::edge() | PollOpt::oneshot()) {
-			debug!("Failed to register {:?}, {:?}", reg, e);
+			trace!(target: "network", "Failed to register {:?}, {:?}", reg, e);
 		}
 		Ok(())
 	}
 
 	/// Update connection registration. Should be called at the end of the IO handler.
 	pub fn update_socket<Host: Handler>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
-		trace!(target: "net", "connection reregister; token={:?}", reg);
+		trace!(target: "network", "connection reregister; token={:?}", reg);
 		event_loop.reregister( &self.socket, reg, self.interest, PollOpt::edge() | PollOpt::oneshot()).or_else(|e| {
-			debug!("Failed to reregister {:?}, {:?}", reg, e);
+			trace!(target: "network", "Failed to reregister {:?}, {:?}", reg, e);
 			Ok(())
 		})
 	}
 
 	/// Delete connection registration. Should be called at the end of the IO handler.
 	pub fn deregister_socket<Host: Handler>(&self, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
-		trace!(target: "net", "connection deregister; token={:?}", self.token);
+		trace!(target: "network", "connection deregister; token={:?}", self.token);
 		event_loop.deregister(&self.socket).ok(); // ignore errors here
 		Ok(())
 	}

util/src/network/handshake.rs

@@ -222,7 +222,7 @@ impl Handshake {
 
 	/// Parse, validate and confirm auth message
 	fn read_auth(&mut self, secret: &Secret, data: &[u8]) -> Result<(), UtilError> {
-		trace!(target:"net", "Received handshake auth from {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Received handshake auth from {:?}", self.connection.socket.peer_addr());
 		if data.len() != V4_AUTH_PACKET_SIZE {
 			debug!(target:"net", "Wrong auth packet size");
 			return Err(From::from(NetworkError::BadProtocol));
@@ -253,7 +253,7 @@ impl Handshake {
 	}
 
 	fn read_auth_eip8(&mut self, secret: &Secret, data: &[u8]) -> Result<(), UtilError> {
-		trace!(target:"net", "Received EIP8 handshake auth from {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Received EIP8 handshake auth from {:?}", self.connection.socket.peer_addr());
 		self.auth_cipher.extend_from_slice(data);
 		let auth = try!(ecies::decrypt(secret, &self.auth_cipher[0..2], &self.auth_cipher[2..]));
 		let rlp = UntrustedRlp::new(&auth);
@@ -268,7 +268,7 @@ impl Handshake {
 
 	/// Parse and validate ack message
 	fn read_ack(&mut self, secret: &Secret, data: &[u8]) -> Result<(), UtilError> {
-		trace!(target:"net", "Received handshake auth to {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Received handshake auth to {:?}", self.connection.socket.peer_addr());
 		if data.len() != V4_ACK_PACKET_SIZE {
 			debug!(target:"net", "Wrong ack packet size");
 			return Err(From::from(NetworkError::BadProtocol));
@@ -296,7 +296,7 @@ impl Handshake {
 	}
 
 	fn read_ack_eip8(&mut self, secret: &Secret, data: &[u8]) -> Result<(), UtilError> {
-		trace!(target:"net", "Received EIP8 handshake auth from {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Received EIP8 handshake auth from {:?}", self.connection.socket.peer_addr());
 		self.ack_cipher.extend_from_slice(data);
 		let ack = try!(ecies::decrypt(secret, &self.ack_cipher[0..2], &self.ack_cipher[2..]));
 		let rlp = UntrustedRlp::new(&ack);
@@ -309,7 +309,7 @@ impl Handshake {
 
 	/// Sends auth message
 	fn write_auth(&mut self, secret: &Secret, public: &Public) -> Result<(), UtilError> {
-		trace!(target:"net", "Sending handshake auth to {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Sending handshake auth to {:?}", self.connection.socket.peer_addr());
 		let mut data = [0u8; /*Signature::SIZE*/ 65 + /*H256::SIZE*/ 32 + /*Public::SIZE*/ 64 + /*H256::SIZE*/ 32 + 1]; //TODO: use associated constants
 		let len = data.len();
 		{
@@ -336,7 +336,7 @@ impl Handshake {
 
 	/// Sends ack message
 	fn write_ack(&mut self) -> Result<(), UtilError> {
-		trace!(target:"net", "Sending handshake ack to {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Sending handshake ack to {:?}", self.connection.socket.peer_addr());
 		let mut data = [0u8; 1 + /*Public::SIZE*/ 64 + /*H256::SIZE*/ 32]; //TODO: use associated constants
 		let len = data.len();
 		{
@@ -355,7 +355,7 @@ impl Handshake {
 
 	/// Sends EIP8 ack message
 	fn write_ack_eip8(&mut self) -> Result<(), UtilError> {
-		trace!(target:"net", "Sending EIP8 handshake ack to {:?}", self.connection.socket.peer_addr());
+		trace!(target:"network", "Sending EIP8 handshake ack to {:?}", self.connection.socket.peer_addr());
 		let mut rlp = RlpStream::new_list(3);
 		rlp.append(self.ecdhe.public());
 		rlp.append(&self.nonce);

util/src/network/host.rs

@@ -170,29 +170,37 @@ pub struct NetworkContext<'s, Message> where Message: Send + Sync + Clone + 'sta
 	io: &'s IoContext<NetworkIoMessage<Message>>,
 	protocol: ProtocolId,
 	sessions: Arc<RwLock<Slab<SharedSession>>>,
-	session: Option<StreamToken>,
+	session: Option<SharedSession>,
+	session_id: Option<StreamToken>,
 }
 
 impl<'s, Message> NetworkContext<'s, Message> where Message: Send + Sync + Clone + 'static, {
 	/// Create a new network IO access point. Takes references to all the data that can be updated within the IO handler.
 	fn new(io: &'s IoContext<NetworkIoMessage<Message>>,
 		protocol: ProtocolId,
-		session: Option<StreamToken>, sessions: Arc<RwLock<Slab<SharedSession>>>) -> NetworkContext<'s, Message> {
+		session: Option<SharedSession>, sessions: Arc<RwLock<Slab<SharedSession>>>) -> NetworkContext<'s, Message> {
+		let id = session.as_ref().map(|s| s.lock().unwrap().token());
 		NetworkContext {
 			io: io,
 			protocol: protocol,
+			session_id: id,
 			session: session,
 			sessions: sessions,
 		}
 	}
 
+	fn resolve_session(&self, peer: PeerId) -> Option<SharedSession> {
+		match self.session_id {
+			Some(id) if id == peer => self.session.clone(),
+			_ => self.sessions.read().unwrap().get(peer).cloned(),
+		}
+	}
+
 	/// Send a packet over the network to another peer.
 	pub fn send(&self, peer: PeerId, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError> {
-		let session = { self.sessions.read().unwrap().get(peer).cloned() };
+		let session = self.resolve_session(peer);
 		if let Some(session) = session {
-			session.lock().unwrap().deref_mut().send_packet(self.protocol, packet_id as u8, &data).unwrap_or_else(|e| {
+			try!(session.lock().unwrap().deref_mut().send_packet(self.protocol, packet_id as u8, &data));
-						warn!(target: "network", "Send error: {:?}", e);
-					}); //TODO: don't copy vector data
 			try!(self.io.update_registration(peer));
 		} else  {
 			trace!(target: "network", "Send: Peer no longer exist")
@@ -200,14 +208,10 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + Sync + Clone
 		Ok(())
 	}
 
-	/// Respond to a current network message. Panics if no there is no packet in the context.
+	/// Respond to a current network message. Panics if no there is no packet in the context. If the session is expired returns nothing.
 	pub fn respond(&self, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError> {
-		match self.session {
+		assert!(self.session.is_some(), "Respond called without network context");
-			Some(session) => self.send(session, packet_id, data),
+		self.send(self.session_id.unwrap(), packet_id, data)
-			None => {
-				panic!("Respond: Session does not exist")
-			}
-		}
 	}
 
 	/// Send an IO message
@@ -215,7 +219,6 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + Sync + Clone
 		self.io.message(NetworkIoMessage::User(msg));
 	}
 
-
 	/// Disable current protocol capability for given peer. If no capabilities left peer gets disconnected.
 	pub fn disable_peer(&self, peer: PeerId) {
 		//TODO: remove capability, disconnect if no capabilities left
@@ -239,7 +242,7 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + Sync + Clone
 
 	/// Returns peer identification string
 	pub fn peer_info(&self, peer: PeerId) -> String {
-		let session = { self.sessions.read().unwrap().get(peer).cloned() };
+		let session = self.resolve_session(peer);
 		if let Some(session) = session {
 			return session.lock().unwrap().info.client_version.clone()
 		}
@@ -624,7 +627,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
 		let mut packet_data: Option<(ProtocolId, PacketId, Vec<u8>)> = None;
 		let mut kill = false;
 		let session = { self.sessions.read().unwrap().get(token).cloned() };
-		if let Some(session) = session {
+		if let Some(session) = session.clone() {
 			let mut s = session.lock().unwrap();
 			match s.readable(io, &self.info.read().unwrap()) {
 				Err(e) => {
@@ -656,11 +659,11 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
 		}
 		for p in ready_data {
 			let h = self.handlers.read().unwrap().get(p).unwrap().clone();
-			h.connected(&NetworkContext::new(io, p, Some(token), self.sessions.clone()), &token);
+			h.connected(&NetworkContext::new(io, p, session.clone(), self.sessions.clone()), &token);
 		}
 		if let Some((p, packet_id, data)) = packet_data {
 			let h = self.handlers.read().unwrap().get(p).unwrap().clone();
-			h.read(&NetworkContext::new(io, p, Some(token), self.sessions.clone()), &token, packet_id, &data[1..]);
+			h.read(&NetworkContext::new(io, p, session.clone(), self.sessions.clone()), &token, packet_id, &data[1..]);
 		}
 		io.update_registration(token).unwrap_or_else(|e| debug!(target: "network", "Token registration error: {:?}", e));
 	}
@@ -718,6 +721,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
 		let mut to_disconnect: Vec<ProtocolId> = Vec::new();
 		let mut failure_id = None;
 		let mut deregister = false;
+		let mut expired_session = None;
 		match token {
 			FIRST_HANDSHAKE ... LAST_HANDSHAKE => {
 				let handshakes = self.handshakes.write().unwrap();
@@ -733,6 +737,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
 			FIRST_SESSION ... LAST_SESSION => {
 				let sessions = self.sessions.write().unwrap();
 				if let Some(session) = sessions.get(token).cloned() {
+					expired_session = Some(session.clone());
 					let mut s = session.lock().unwrap();
 					if !s.expired() {
 						if s.is_ready() {
@@ -757,7 +762,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
 		}
 		for p in to_disconnect {
 			let h = self.handlers.read().unwrap().get(p).unwrap().clone();
-			h.disconnected(&NetworkContext::new(io, p, Some(token), self.sessions.clone()), &token);
+			h.disconnected(&NetworkContext::new(io, p, expired_session.clone(), self.sessions.clone()), &token);
 		}
 		if deregister {
 			io.deregister_stream(token).expect("Error deregistering stream");

util/src/network/session.rs

@@ -213,6 +213,9 @@ impl Session {
 
 	/// Send a protocol packet to peer.
 	pub fn send_packet(&mut self, protocol: &str, packet_id: u8, data: &[u8]) -> Result<(), UtilError> {
+		if self.expired() {
+			return Err(From::from(NetworkError::Expired));
+		}
 		let mut i = 0usize;
 		while protocol != self.info.capabilities[i].protocol {
 			i += 1;
@@ -351,15 +354,15 @@ impl Session {
 			offset += caps[i].packet_count;
 			i += 1;
 		}
-		trace!(target: "net", "Hello: {} v{} {} {:?}", client_version, protocol, id, caps);
+		trace!(target: "network", "Hello: {} v{} {} {:?}", client_version, protocol, id, caps);
 		self.info.client_version = client_version;
 		self.info.capabilities = caps;
 		if self.info.capabilities.is_empty() {
-			trace!("No common capabilities with peer.");
+			trace!(target: "network", "No common capabilities with peer.");
 			return Err(From::from(self.disconnect(DisconnectReason::UselessPeer)));
 		}
 		if protocol != host.protocol_version {
-			trace!("Peer protocol version mismatch: {}", protocol);
+			trace!(target: "network", "Peer protocol version mismatch: {}", protocol);
 			return Err(From::from(self.disconnect(DisconnectReason::UselessPeer)));
 		}
 		self.had_hello = true;