Merge branch 'fixed_hash_util' into move_hash

Cargo.lock

@@ -15,6 +15,7 @@ dependencies = [
  "ethcore-ipc-codegen 1.3.0",
  "ethcore-ipc-hypervisor 1.2.0",
  "ethcore-ipc-nano 1.3.0",
+ "ethcore-ipc-tests 0.1.0",
  "ethcore-logger 1.3.0",
  "ethcore-rpc 1.3.0",
  "ethcore-signer 1.3.0",
@@ -78,6 +79,19 @@ dependencies = [
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bit-set"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-vec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bitflags"
 version = "0.3.3"
@@ -244,6 +258,7 @@ dependencies = [
 name = "ethcore"
 version = "1.3.0"
 dependencies = [
+ "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bloomchain 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "clippy 0.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -265,7 +280,6 @@ dependencies = [
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -332,7 +346,6 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
  "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -340,11 +353,25 @@ name = "ethcore-ipc-nano"
 version = "1.3.0"
 dependencies = [
  "ethcore-ipc 1.3.0",
- "jsonrpc-core 2.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
 ]
 
+[[package]]
+name = "ethcore-ipc-tests"
+version = "0.1.0"
+dependencies = [
+ "ethcore-devtools 1.3.0",
+ "ethcore-ipc 1.3.0",
+ "ethcore-ipc-codegen 1.3.0",
+ "ethcore-ipc-nano 1.3.0",
+ "ethcore-util 1.3.0",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
+ "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethcore-logger"
 version = "1.3.0"
@@ -492,7 +519,6 @@ dependencies = [
  "parking_lot 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -620,7 +646,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "json-ipc-server"
 version = "0.2.4"
-source = "git+https://github.com/ethcore/json-ipc-server.git#93c2756f669c6a1872dec1ef755a0870f40c03c3"
+source = "git+https://github.com/ethcore/json-ipc-server.git#7a02a0f8b249fda100b9bab5f90b2081d410d8cf"
 dependencies = [
  "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -899,7 +925,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "parity-dapps"
 version = "0.6.0"
-source = "git+https://github.com/ethcore/parity-ui.git#7120546d08d4d9eb648e255c04935002223d362f"
+source = "git+https://github.com/ethcore/parity-ui.git#697e860dedc45003909602a002e7743478ab173a"
 dependencies = [
  "aster 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -913,7 +939,7 @@ dependencies = [
 [[package]]
 name = "parity-dapps-home"
 version = "0.6.0"
-source = "git+https://github.com/ethcore/parity-ui.git#7120546d08d4d9eb648e255c04935002223d362f"
+source = "git+https://github.com/ethcore/parity-ui.git#697e860dedc45003909602a002e7743478ab173a"
 dependencies = [
  "parity-dapps 0.6.0 (git+https://github.com/ethcore/parity-ui.git)",
 ]
@@ -921,7 +947,7 @@ dependencies = [
 [[package]]
 name = "parity-dapps-signer"
 version = "0.6.0"
-source = "git+https://github.com/ethcore/parity-ui.git#7120546d08d4d9eb648e255c04935002223d362f"
+source = "git+https://github.com/ethcore/parity-ui.git#697e860dedc45003909602a002e7743478ab173a"
 dependencies = [
  "parity-dapps 0.6.0 (git+https://github.com/ethcore/parity-ui.git)",
 ]
@@ -929,7 +955,7 @@ dependencies = [
 [[package]]
 name = "parity-dapps-status"
 version = "0.6.0"
-source = "git+https://github.com/ethcore/parity-ui.git#7120546d08d4d9eb648e255c04935002223d362f"
+source = "git+https://github.com/ethcore/parity-ui.git#697e860dedc45003909602a002e7743478ab173a"
 dependencies = [
  "parity-dapps 0.6.0 (git+https://github.com/ethcore/parity-ui.git)",
 ]
@@ -937,7 +963,7 @@ dependencies = [
 [[package]]
 name = "parity-dapps-wallet"
 version = "0.6.0"
-source = "git+https://github.com/ethcore/parity-ui.git#7120546d08d4d9eb648e255c04935002223d362f"
+source = "git+https://github.com/ethcore/parity-ui.git#697e860dedc45003909602a002e7743478ab173a"
 dependencies = [
  "parity-dapps 0.6.0 (git+https://github.com/ethcore/parity-ui.git)",
 ]

Cargo.toml

@@ -10,6 +10,7 @@ build = "build.rs"
 rustc_version = "0.1"
 syntex = "*"
 ethcore-ipc-codegen = { path = "ipc/codegen" }
+ethcore-ipc-tests = { path = "ipc/tests" }
 
 [dependencies]
 log = "0.3"
@@ -56,8 +57,9 @@ default = ["ui", "use-precompiled-js"]
 ui = ["dapps", "ethcore-signer/ui"]
 use-precompiled-js = ["ethcore-dapps/use-precompiled-js", "ethcore-signer/use-precompiled-js"]
 dapps = ["ethcore-dapps"]
-dev = ["clippy", "ethcore/dev", "ethcore-util/dev", "ethsync/dev", "ethcore-rpc/dev", "ethcore-dapps/dev", "ethcore-signer/dev"]
 ipc = ["ethcore/ipc"]
+dev = ["clippy", "ethcore/dev", "ethcore-util/dev", "ethsync/dev", "ethcore-rpc/dev", "ethcore-dapps/dev", "ethcore-signer/dev"]
+json-tests = ["ethcore/json-tests"]
 
 [[bin]]
 path = "parity/main.rs"

db/src/database.rs

@@ -25,12 +25,6 @@ use std::mem;
 use ipc::binary::BinaryConvertError;
 use std::collections::{VecDeque, HashMap, BTreeMap};
 
-impl From<String> for Error {
-	fn from(s: String) -> Error {
-		Error::RocksDb(s)
-	}
-}
-
 enum WriteCacheEntry {
 	Remove,
 	Write(Vec<u8>),

db/src/traits.rs

@@ -31,8 +31,8 @@ pub struct KeyValue {
 	pub value: Vec<u8>,
 }
 
-	#[derive(Debug, Binary)]
+#[derive(Debug, Binary)]
-	pub enum Error {
+pub enum Error {
 	AlreadyOpen,
 	IsClosed,
 	RocksDb(String),
@@ -41,6 +41,12 @@ pub struct KeyValue {
 	UncommitedTransactions,
 }
 
+impl From<String> for Error {
+	fn from(s: String) -> Error {
+		Error::RocksDb(s)
+	}
+}
+
 /// Database configuration
 #[derive(Binary)]
 pub struct DatabaseConfig {
@@ -68,7 +74,7 @@ impl DatabaseConfig {
 	}
 }
 
-	pub trait DatabaseService : Sized {
+pub trait DatabaseService : Sized {
 	/// Opens database in the specified path
 	fn open(&self, config: DatabaseConfig, path: String) -> Result<(), Error>;
 

devtools/src/test_socket.rs

@@ -62,6 +62,7 @@ impl TestSocket {
 impl Read for TestSocket {
 	fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
 		let end_position = cmp::min(self.read_buffer.len(), self.cursor+buf.len());
+		if self.cursor > end_position { return Ok(0) }
 		let len = cmp::max(end_position - self.cursor, 0);
 		match len {
 			0 => Ok(0),
@@ -69,7 +70,7 @@ impl Read for TestSocket {
 				for i in self.cursor..end_position {
 					buf[i-self.cursor] = self.read_buffer[i];
 				}
-				self.cursor = self.cursor + buf.len();
+				self.cursor = end_position;
 				Ok(len)
 			}
 		}

ethcore/Cargo.toml

@@ -8,7 +8,6 @@ authors = ["Ethcore <admin@ethcore.io>"]
 build = "build.rs"
 
 [build-dependencies]
-syntex = "*"
 "ethcore-ipc-codegen" = { path = "../ipc/codegen" }
 
 [dependencies]
@@ -17,21 +16,22 @@ env_logger = "0.3"
 rustc-serialize = "0.3"
 heapsize = "0.3"
 rust-crypto = "0.2.34"
-time = "0.1"
-ethcore-util = { path = "../util" }
-evmjit = { path = "../evmjit", optional = true }
-ethash = { path = "../ethash" }
 num_cpus = "0.2"
-clippy = { version = "0.0.79", optional = true}
 crossbeam = "0.2.9"
 lazy_static = "0.2"
+bloomchain = "0.1"
+rayon = "0.3.1"
+semver = "0.2"
+bit-set = "0.4"
+time = "0.1"
+evmjit = { path = "../evmjit", optional = true }
+clippy = { version = "0.0.79", optional = true}
+ethash = { path = "../ethash" }
+ethcore-util = { path = "../util" }
 ethcore-devtools = { path = "../devtools" }
 ethjson = { path = "../json" }
-bloomchain = "0.1"
 ethcore-ipc = { path = "../ipc/rpc" }
-rayon = "0.3.1"
 ethstore = { path = "../ethstore" }
-semver = "0.2"
 ethcore-ipc-nano = { path = "../ipc/nano" }
 
 [dependencies.hyper]

ethcore/build.rs

@@ -14,48 +14,10 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-extern crate syntex;
+extern crate ethcore_ipc_codegen;
-extern crate ethcore_ipc_codegen as codegen;
-
-use std::env;
-use std::path::Path;
 
 fn main() {
-	let out_dir = env::var_os("OUT_DIR").unwrap();
+	ethcore_ipc_codegen::derive_binary("src/types/mod.rs.in").unwrap();
-	// serialization pass
+	ethcore_ipc_codegen::derive_ipc("src/client/traits.rs").unwrap();
-	{
+	ethcore_ipc_codegen::derive_ipc("src/client/chain_notify.rs").unwrap();
-		let src = Path::new("src/types/mod.rs.in");
-		let dst = Path::new(&out_dir).join("types.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
-
-	// blockchain client interface
-	{
-		let src = Path::new("src/client/traits.rs");
-		let intermediate = Path::new(&out_dir).join("traits.intermediate.rs.in");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &intermediate).unwrap();
-
-		let dst = Path::new(&out_dir).join("traits.ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &intermediate, &dst).unwrap();
-	}
-
-	// chain notify interface
-	{
-		let src = Path::new("src/client/chain_notify.rs");
-		let intermediate = Path::new(&out_dir).join("chain_notify.intermediate.rs.in");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &intermediate).unwrap();
-
-		let dst = Path::new(&out_dir).join("chain_notify.ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &intermediate, &dst).unwrap();
-	}
 }

ethcore/res/instant_seal.json

@@ -0,0 +1,33 @@
+{
+	"name": "TestInstantSeal",
+	"engine": {
+		"InstantSeal": null
+	},
+	"params": {
+		"accountStartNonce": "0x0100000",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x2"
+	},
+	"genesis": {
+		"seal": {
+			"ethereum": {
+				"nonce": "0x00006d6f7264656e",
+				"mixHash": "0x00000000000000000000000000000000000000647572616c65787365646c6578"
+			}
+		},
+		"difficulty": "0x20000",
+		"author": "0x0000000000000000000000000000000000000000",
+		"timestamp": "0x00",
+		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"extraData": "0x",
+		"gasLimit": "0x2fefd8"
+	},
+	"accounts": {
+		"0000000000000000000000000000000000000001": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
+		"0000000000000000000000000000000000000002": { "balance": "1", "nonce": "1048576", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
+		"0000000000000000000000000000000000000003": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
+		"0000000000000000000000000000000000000004": { "balance": "1", "nonce": "1048576", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"102e61f5d8f9bc71d0ad4a084df4e65e05ce0e1c": { "balance": "1606938044258990275541962092341162602522202993782792835301376", "nonce": "1048576" }
+	}
+}

ethcore/src/account_provider.rs

@@ -107,18 +107,23 @@ impl_bridge_type!(Message, 32, H256, SSMessage);
 impl_bridge_type!(Address, 20, H160, SSAddress);
 
 
-struct NullDir;
+#[derive(Default)]
+struct NullDir {
+	accounts: RwLock<HashMap<SSAddress, SafeAccount>>,
+}
 
 impl KeyDirectory for NullDir {
 	fn load(&self) -> Result<Vec<SafeAccount>, SSError> {
-		Ok(vec![])
+		Ok(self.accounts.read().values().cloned().collect())
 	}
 
 	fn insert(&self, account: SafeAccount) -> Result<SafeAccount, SSError> {
+		self.accounts.write().insert(account.address.clone(), account.clone());
 		Ok(account)
 	}
 
-	fn remove(&self, _address: &SSAddress) -> Result<(), SSError> {
+	fn remove(&self, address: &SSAddress) -> Result<(), SSError> {
+		self.accounts.write().remove(address);
 		Ok(())
 	}
 }
@@ -164,7 +169,7 @@ impl AccountProvider {
 	pub fn transient_provider() -> Self {
 		AccountProvider {
 			unlocked: RwLock::new(HashMap::new()),
-			sstore: Box::new(EthStore::open(Box::new(NullDir)).unwrap())
+			sstore: Box::new(EthStore::open(Box::new(NullDir::default())).unwrap())
 		}
 	}
 
@@ -184,13 +189,14 @@ impl AccountProvider {
 	}
 
 	/// Returns addresses of all accounts.
-	pub fn accounts(&self) -> Vec<H160> {
+	pub fn accounts(&self) -> Result<Vec<H160>, Error> {
-		self.sstore.accounts().into_iter().map(|a| H160(a.into())).collect()
+		let accounts = try!(self.sstore.accounts()).into_iter().map(|a| H160(a.into())).collect();
+		Ok(accounts)
 	}
 
 	/// Returns each account along with name and meta.
 	pub fn accounts_info(&self) -> Result<HashMap<H160, AccountMeta>, Error> {
-		let r: HashMap<H160, AccountMeta> = self.sstore.accounts()
+		let r: HashMap<H160, AccountMeta> = try!(self.sstore.accounts())
 			.into_iter()
 			.map(|a| (H160(a.clone().into()), self.account_meta(a).unwrap_or_else(|_| Default::default())))
 			.collect();

ethcore/src/blockchain/blockchain.rs

@@ -16,7 +16,6 @@
 
 //! Blockchain database.
 
-use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrder};
 use bloomchain as bc;
 use util::*;
 use header::*;
@@ -32,6 +31,7 @@ use blockchain::update::ExtrasUpdate;
 use blockchain::{CacheSize, ImportRoute, Config};
 use db::{Writable, Readable, CacheUpdatePolicy};
 use client::{DB_COL_EXTRA, DB_COL_HEADERS, DB_COL_BODIES};
+use cache_manager::CacheManager;
 
 const LOG_BLOOMS_LEVELS: usize = 3;
 const LOG_BLOOMS_ELEMENTS_PER_INDEX: usize = 16;
@@ -130,11 +130,6 @@ enum CacheID {
 	BlockReceipts(H256),
 }
 
-struct CacheManager {
-	cache_usage: VecDeque<HashSet<CacheID>>,
-	in_use: HashSet<CacheID>,
-}
-
 impl bc::group::BloomGroupDatabase for BlockChain {
 	fn blooms_at(&self, position: &bc::group::GroupPosition) -> Option<bc::group::BloomGroup> {
 		let position = LogGroupPosition::from(position.clone());
@@ -148,8 +143,6 @@ impl bc::group::BloomGroupDatabase for BlockChain {
 /// **Does not do input data verification.**
 pub struct BlockChain {
 	// All locks must be captured in the order declared here.
-	pref_cache_size: AtomicUsize,
-	max_cache_size: AtomicUsize,
 	blooms_config: bc::Config,
 
 	best_block: RwLock<BestBlock>,
@@ -167,7 +160,11 @@ pub struct BlockChain {
 
 	db: Arc<Database>,
 
-	cache_man: RwLock<CacheManager>,
+	cache_man: RwLock<CacheManager<CacheID>>,
+
+	pending_best_block: RwLock<Option<BestBlock>>,
+	pending_block_hashes: RwLock<HashMap<BlockNumber, H256>>,
+	pending_transaction_addresses: RwLock<HashMap<H256, TransactionAddress>>,
 }
 
 impl BlockProvider for BlockChain {
@@ -297,8 +294,6 @@ impl BlockProvider for BlockChain {
 	}
 }
 
-const COLLECTION_QUEUE_SIZE: usize = 8;
-
 pub struct AncestryIter<'a> {
 	current: H256,
 	chain: &'a BlockChain,
@@ -320,12 +315,10 @@ impl<'a> Iterator for AncestryIter<'a> {
 impl BlockChain {
 	/// Create new instance of blockchain from given Genesis
 	pub fn new(config: Config, genesis: &[u8], db: Arc<Database>) -> BlockChain {
-		let mut cache_man = CacheManager{cache_usage: VecDeque::new(), in_use: HashSet::new()};
+		// 400 is the avarage size of the key
-		(0..COLLECTION_QUEUE_SIZE).foreach(|_| cache_man.cache_usage.push_back(HashSet::new()));
+		let cache_man = CacheManager::new(config.pref_cache_size, config.max_cache_size, 400);
 
 		let bc = BlockChain {
-			pref_cache_size: AtomicUsize::new(config.pref_cache_size),
-			max_cache_size: AtomicUsize::new(config.max_cache_size),
 			blooms_config: bc::Config {
 				levels: LOG_BLOOMS_LEVELS,
 				elements_per_index: LOG_BLOOMS_ELEMENTS_PER_INDEX,
@@ -340,6 +333,9 @@ impl BlockChain {
 			block_receipts: RwLock::new(HashMap::new()),
 			db: db.clone(),
 			cache_man: RwLock::new(cache_man),
+			pending_best_block: RwLock::new(None),
+			pending_block_hashes: RwLock::new(HashMap::new()),
+			pending_transaction_addresses: RwLock::new(HashMap::new()),
 		};
 
 		// load best block
@@ -449,12 +445,6 @@ impl BlockChain {
 		None
 	}
 
-	/// Set the cache configuration.
-	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:
 	///
 	/// - a vector of hashes of all blocks, ordered from `from` to `to`.
@@ -557,6 +547,8 @@ impl BlockChain {
 			return ImportRoute::none();
 		}
 
+		assert!(self.pending_best_block.read().is_none());
+
 		let block_rlp = UntrustedRlp::new(bytes);
 		let compressed_header = block_rlp.at(0).unwrap().compress(RlpType::Blocks);
 		let compressed_body = UntrustedRlp::new(&Self::block_to_body(bytes)).compress(RlpType::Blocks);
@@ -576,7 +568,7 @@ impl BlockChain {
 			);
 		}
 
-		self.apply_update(batch, ExtrasUpdate {
+		self.prepare_update(batch, ExtrasUpdate {
 			block_hashes: self.prepare_block_hashes_update(bytes, &info),
 			block_details: self.prepare_block_details_update(bytes, &info),
 			block_receipts: self.prepare_block_receipts_update(receipts, &info),
@@ -631,8 +623,8 @@ impl BlockChain {
 		}
 	}
 
-	/// Applies extras update.
+	/// Prepares extras update.
-	fn apply_update(&self, batch: &DBTransaction, update: ExtrasUpdate) {
+	fn prepare_update(&self, batch: &DBTransaction, update: ExtrasUpdate) {
 		{
 			for hash in update.block_details.keys().cloned() {
 				self.note_used(CacheID::BlockDetails(hash));
@@ -655,27 +647,44 @@ impl BlockChain {
 		// These cached values must be updated last with all three locks taken to avoid
 		// cache decoherence
 		{
-			let mut best_block = self.best_block.write();
+			let mut best_block = self.pending_best_block.write();
 			// update best block
 			match update.info.location {
 				BlockLocation::Branch => (),
 				_ => {
 					batch.put(DB_COL_EXTRA, b"best", &update.info.hash).unwrap();
-					*best_block = BestBlock {
+					*best_block = Some(BestBlock {
 						hash: update.info.hash,
 						number: update.info.number,
 						total_difficulty: update.info.total_difficulty,
 						block: update.block.to_vec(),
-					};
+					});
 				}
 			}
 
+			let mut write_hashes = self.pending_block_hashes.write();
+			let mut write_txs = self.pending_transaction_addresses.write();
+
+			batch.extend_with_cache(DB_COL_EXTRA, &mut *write_hashes, update.block_hashes, CacheUpdatePolicy::Overwrite);
+			batch.extend_with_cache(DB_COL_EXTRA, &mut *write_txs, update.transactions_addresses, CacheUpdatePolicy::Overwrite);
+		}
+	}
+
+	/// Applt pending insertion updates
+	pub fn commit(&self) {
+		let mut best_block = self.best_block.write();
 		let mut write_hashes = self.block_hashes.write();
 		let mut write_txs = self.transaction_addresses.write();
-
+		let mut pending_best_block = self.pending_best_block.write();
-			batch.extend_with_cache(DB_COL_EXTRA, &mut *write_hashes, update.block_hashes, CacheUpdatePolicy::Remove);
+		let mut pending_write_hashes = self.pending_block_hashes.write();
-			batch.extend_with_cache(DB_COL_EXTRA, &mut *write_txs, update.transactions_addresses, CacheUpdatePolicy::Remove);
+		let mut pending_write_txs = self.pending_transaction_addresses.write();
+		// update best block
+		if let Some(block) = pending_best_block.take() {
+			*best_block = block;
 		}
+
+		write_hashes.extend(mem::replace(&mut *pending_write_hashes, HashMap::new()));
+		write_txs.extend(mem::replace(&mut *pending_write_txs, HashMap::new()));
 	}
 
 	/// Iterator that lists `first` and then all of `first`'s ancestors, by hash.
@@ -874,35 +883,13 @@ impl BlockChain {
 	/// 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();
-		if !cache_man.cache_usage[0].contains(&id) {
+		cache_man.note_used(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.load(AtomicOrder::Relaxed) {
-			// rotate cache
 		let mut cache_man = self.cache_man.write();
-			const AVERAGE_BYTES_PER_CACHE_ENTRY: usize = 400; //estimated
+		cache_man.collect_garbage(|| self.cache_size().total(), | ids | {
-			if cache_man.cache_usage[0].len() > self.pref_cache_size.load(AtomicOrder::Relaxed) / COLLECTION_QUEUE_SIZE / AVERAGE_BYTES_PER_CACHE_ENTRY {
-				trace!("Cache rotation, cache_size = {}", self.cache_size().total());
-				let cache = cache_man.cache_usage.pop_back().unwrap();
-				cache_man.cache_usage.push_front(cache);
-			}
-			return;
-		}
-
-		for i in 0..COLLECTION_QUEUE_SIZE {
-			{
-				trace!("Cache cleanup round started {}, cache_size = {}", i, self.cache_size().total());
 			let mut block_headers = self.block_headers.write();
 			let mut block_bodies = self.block_bodies.write();
 			let mut block_details = self.block_details.write();
@@ -910,25 +897,18 @@ impl BlockChain {
 			let mut transaction_addresses = self.transaction_addresses.write();
 			let mut blocks_blooms = self.blocks_blooms.write();
 			let mut block_receipts = self.block_receipts.write();
-				let mut cache_man = self.cache_man.write();
 
-				for id in cache_man.cache_usage.pop_back().unwrap().into_iter() {
+			for id in &ids {
-					cache_man.in_use.remove(&id);
+				match *id {
-					match id {
+					CacheID::BlockHeader(ref h) => { block_headers.remove(h); },
-						CacheID::BlockHeader(h) => { block_headers.remove(&h); },
+					CacheID::BlockBody(ref h) => { block_bodies.remove(h); },
-						CacheID::BlockBody(h) => { block_bodies.remove(&h); },
+					CacheID::BlockDetails(ref h) => { block_details.remove(h); }
-						CacheID::BlockDetails(h) => { block_details.remove(&h); }
+					CacheID::BlockHashes(ref h) => { block_hashes.remove(h); }
-						CacheID::BlockHashes(h) => { block_hashes.remove(&h); }
+					CacheID::TransactionAddresses(ref h) => { transaction_addresses.remove(h); }
-						CacheID::TransactionAddresses(h) => { transaction_addresses.remove(&h); }
+					CacheID::BlocksBlooms(ref h) => { blocks_blooms.remove(h); }
-						CacheID::BlocksBlooms(h) => { blocks_blooms.remove(&h); }
+					CacheID::BlockReceipts(ref h) => { block_receipts.remove(h); }
-						CacheID::BlockReceipts(h) => { block_receipts.remove(&h); }
 				}
 			}
-				cache_man.cache_usage.push_front(HashSet::new());
-
-				// TODO: handle block_hashes properly.
-				block_hashes.clear();
-
 			block_headers.shrink_to_fit();
 			block_bodies.shrink_to_fit();
 			block_details.shrink_to_fit();
@@ -936,12 +916,7 @@ impl BlockChain {
 			transaction_addresses.shrink_to_fit();
 			blocks_blooms.shrink_to_fit();
 			block_receipts.shrink_to_fit();
-			}
+		});
-			trace!("Cache cleanup round complete {}, cache_size = {}", i, self.cache_size().total());
-			if self.cache_size().total() < self.max_cache_size.load(AtomicOrder::Relaxed) { break; }
-		}
-
-		// TODO: m_lastCollection = chrono::system_clock::now();
 	}
 
 	/// Create a block body from a block.
@@ -991,6 +966,8 @@ mod tests {
 		// when
 		let batch = db.transaction();
 		bc.insert_block(&batch, &first, vec![]);
+		assert_eq!(bc.best_block_number(), 0);
+		bc.commit();
 		// NOTE no db.write here (we want to check if best block is cached)
 
 		// then
@@ -1020,6 +997,7 @@ mod tests {
 		let batch = db.transaction();
 		bc.insert_block(&batch, &first, vec![]);
 		db.write(batch).unwrap();
+		bc.commit();
 
 		assert_eq!(bc.block_hash(0), Some(genesis_hash.clone()));
 		assert_eq!(bc.best_block_number(), 1);
@@ -1047,6 +1025,7 @@ mod tests {
 			let block = canon_chain.generate(&mut finalizer).unwrap();
 			block_hashes.push(BlockView::new(&block).header_view().sha3());
 			bc.insert_block(&batch, &block, vec![]);
+			bc.commit();
 		}
 		db.write(batch).unwrap();
 
@@ -1077,7 +1056,10 @@ mod tests {
 		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
 
 		let batch = db.transaction();
-		bc.insert_block(&batch, &b1a, vec![]);
+		for b in [&b1a, &b1b, &b2a, &b2b, &b3a, &b3b, &b4a, &b4b, &b5a, &b5b].iter() {
+			bc.insert_block(&batch, b, vec![]);
+			bc.commit();
+		}
 		bc.insert_block(&batch, &b1b, vec![]);
 		bc.insert_block(&batch, &b2a, vec![]);
 		bc.insert_block(&batch, &b2b, vec![]);
@@ -1123,11 +1105,16 @@ mod tests {
 
 		let batch = db.transaction();
 		let ir1 = bc.insert_block(&batch, &b1, vec![]);
+		bc.commit();
 		let ir2 = bc.insert_block(&batch, &b2, vec![]);
+		bc.commit();
 		let ir3b = bc.insert_block(&batch, &b3b, vec![]);
+		bc.commit();
 		db.write(batch).unwrap();
+		assert_eq!(bc.block_hash(3).unwrap(), b3b_hash);
 		let batch = db.transaction();
 		let ir3a = bc.insert_block(&batch, &b3a, vec![]);
+		bc.commit();
 		db.write(batch).unwrap();
 
 		assert_eq!(ir1, ImportRoute {
@@ -1235,6 +1222,7 @@ mod tests {
 			let batch = db.transaction();
 			bc.insert_block(&batch, &first, vec![]);
 			db.write(batch).unwrap();
+			bc.commit();
 			assert_eq!(bc.best_block_hash(), first_hash);
 		}
 
@@ -1299,6 +1287,7 @@ mod tests {
 		let batch = db.transaction();
 		bc.insert_block(&batch, &b1, vec![]);
 		db.write(batch).unwrap();
+		bc.commit();
 
 		let transactions = bc.transactions(&b1_hash).unwrap();
 		assert_eq!(transactions.len(), 7);
@@ -1311,6 +1300,7 @@ mod tests {
 		let batch = db.transaction();
 		let res = bc.insert_block(&batch, bytes, receipts);
 		db.write(batch).unwrap();
+		bc.commit();
 		res
 	}
 
@@ -1401,11 +1391,13 @@ mod tests {
 			for _ in 0..5 {
 				let canon_block = canon_chain.generate(&mut finalizer).unwrap();
 				bc.insert_block(&batch, &canon_block, vec![]);
+				bc.commit();
 			}
 
 			assert_eq!(bc.best_block_number(), 5);
 			bc.insert_block(&batch, &uncle, vec![]);
 			db.write(batch).unwrap();
+			bc.commit();
 		}
 
 		// re-loading the blockchain should load the correct best block.
@@ -1431,7 +1423,9 @@ mod tests {
 
 		let batch = db.transaction();
 		bc.insert_block(&batch, &first, vec![]);
+		bc.commit();
 		bc.insert_block(&batch, &second, vec![]);
+		bc.commit();
 		db.write(batch).unwrap();
 
 		assert_eq!(bc.rewind(), Some(first_hash.clone()));

ethcore/src/cache_manager.rs

@@ -0,0 +1,69 @@
+// 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/>.
+
+use std::collections::{VecDeque, HashSet};
+use std::hash::Hash;
+
+const COLLECTION_QUEUE_SIZE: usize = 8;
+
+pub struct CacheManager<T> where T: Eq + Hash {
+	pref_cache_size: usize,
+	max_cache_size: usize,
+	bytes_per_cache_entry: usize,
+	cache_usage: VecDeque<HashSet<T>>
+}
+
+impl<T> CacheManager<T> where T: Eq + Hash {
+	pub fn new(pref_cache_size: usize, max_cache_size: usize, bytes_per_cache_entry: usize) -> Self {
+		CacheManager {
+			pref_cache_size: pref_cache_size,
+			max_cache_size: max_cache_size,
+			bytes_per_cache_entry: bytes_per_cache_entry,
+			cache_usage: (0..COLLECTION_QUEUE_SIZE).into_iter().map(|_| Default::default()).collect(),
+		}
+	}
+
+	pub fn note_used(&mut self, id: T) {
+		if !self.cache_usage[0].contains(&id) {
+			if let Some(c) = self.cache_usage.iter_mut().skip(1).find(|e| e.contains(&id)) {
+				c.remove(&id);
+			}
+			self.cache_usage[0].insert(id);
+		}
+	}
+
+	pub fn collect_garbage<C, F>(&mut self, current_size: C, mut notify_unused: F) where C: Fn() -> usize, F: FnMut(HashSet<T>) {
+		if current_size() < self.pref_cache_size {
+			self.rotate_cache_if_needed();
+			return;
+		}
+
+		for _ in 0..COLLECTION_QUEUE_SIZE {
+			notify_unused(self.cache_usage.pop_back().unwrap());
+			self.cache_usage.push_front(Default::default());
+			if current_size() < self.max_cache_size {
+				break;
+			}
+		}
+	}
+
+	fn rotate_cache_if_needed(&mut self) {
+		if self.cache_usage[0].len() * self.bytes_per_cache_entry > self.pref_cache_size / COLLECTION_QUEUE_SIZE {
+			let cache = self.cache_usage.pop_back().unwrap();
+			self.cache_usage.push_front(cache);
+		}
+	}
+}

ethcore/src/client/client.rs

@@ -178,15 +178,15 @@ impl Client {
 		db_config.compaction = config.db_compaction.compaction_profile();
 		db_config.wal = config.db_wal;
 
-		let db = Arc::new(Database::open(&db_config, &path.to_str().unwrap()).expect("Error opening database"));
+		let db = Arc::new(try!(Database::open(&db_config, &path.to_str().unwrap()).map_err(ClientError::Database)));
 		let chain = Arc::new(BlockChain::new(config.blockchain, &gb, db.clone()));
 		let tracedb = Arc::new(try!(TraceDB::new(config.tracing, db.clone(), chain.clone())));
 
 		let mut state_db = journaldb::new(db.clone(), config.pruning, DB_COL_STATE);
 		if state_db.is_empty() && spec.ensure_db_good(state_db.as_hashdb_mut()) {
 			let batch = DBTransaction::new(&db);
-			state_db.commit(&batch, 0, &spec.genesis_header().hash(), None).expect("Error commiting genesis state to state DB");
+			try!(state_db.commit(&batch, 0, &spec.genesis_header().hash(), None));
-			db.write(batch).expect("Error writing genesis state to state DB");
+			try!(db.write(batch).map_err(ClientError::Database));
 		}
 
 		if !chain.block_header(&chain.best_block_hash()).map_or(true, |h| state_db.contains(h.state_root())) {
@@ -452,6 +452,7 @@ impl Client {
 		});
 		// Final commit to the DB
 		self.db.write(batch).expect("State DB write failed.");
+		self.chain.commit();
 
 		self.update_last_hashes(&parent, hash);
 		route
@@ -549,6 +550,7 @@ impl Client {
 	pub fn tick(&self) {
 		self.chain.collect_garbage();
 		self.block_queue.collect_garbage();
+		self.tracedb.collect_garbage();
 
 		match self.mode {
 			Mode::Dark(timeout) => {
@@ -582,11 +584,6 @@ impl Client {
 		}
 	}
 
-	/// Set up the cache behaviour.
-	pub fn configure_cache(&self, pref_cache_size: usize, max_cache_size: usize) {
-		self.chain.configure_cache(pref_cache_size, max_cache_size);
-	}
-
 	/// Look up the block number for the given block ID.
 	pub fn block_number(&self, id: BlockID) -> Option<BlockNumber> {
 		match id {

ethcore/src/client/error.rs

@@ -1,4 +1,5 @@
 use trace::Error as TraceError;
+use util::UtilError;
 use std::fmt::{Display, Formatter, Error as FmtError};
 
 /// Client configuration errors.
@@ -6,6 +7,10 @@ use std::fmt::{Display, Formatter, Error as FmtError};
 pub enum Error {
 	/// TraceDB configuration error.
 	Trace(TraceError),
+	/// Database error
+	Database(String),
+	/// Util error
+	Util(UtilError),
 }
 
 impl From<TraceError> for Error {
@@ -14,10 +19,18 @@ impl From<TraceError> for Error {
 	}
 }
 
+impl From<UtilError> for Error {
+	fn from(err: UtilError) -> Self {
+		Error::Util(err)
+	}
+}
+
 impl Display for Error {
 	fn fmt(&self, f: &mut Formatter) -> Result<(), FmtError> {
 		match *self {
-			Error::Trace(ref err) => write!(f, "{}", err)
+			Error::Trace(ref err) => write!(f, "{}", err),
+			Error::Util(ref err) => write!(f, "{}", err),
+			Error::Database(ref s) => write!(f, "Database error: {}", s),
 		}
 	}
 }

ethcore/src/client/mod.rs

@@ -40,13 +40,13 @@ pub use self::traits::{BlockChainClient, MiningBlockChainClient, RemoteClient};
 
 mod traits {
 	#![allow(dead_code, unused_assignments, unused_variables, missing_docs)] // codegen issues
-	include!(concat!(env!("OUT_DIR"), "/traits.ipc.rs"));
+	include!(concat!(env!("OUT_DIR"), "/traits.rs"));
 }
 
 pub mod chain_notify {
 	//! Chain notify interface
 
 	#![allow(dead_code, unused_assignments, unused_variables, missing_docs)] // codegen issues
-	include!(concat!(env!("OUT_DIR"), "/chain_notify.ipc.rs"));
+	include!(concat!(env!("OUT_DIR"), "/chain_notify.rs"));
 }
 

ethcore/src/client/test_client.rs

@@ -257,7 +257,7 @@ pub fn get_temp_journal_db() -> GuardedTempResult<Box<JournalDB>> {
 }
 
 impl MiningBlockChainClient for TestBlockChainClient {
-	fn prepare_open_block(&self, _author: Address, _gas_range_target: (U256, U256), _extra_data: Bytes) -> OpenBlock {
+	fn prepare_open_block(&self, author: Address, gas_range_target: (U256, U256), extra_data: Bytes) -> OpenBlock {
 		let engine = &self.spec.engine;
 		let genesis_header = self.spec.genesis_header();
 		let mut db_result = get_temp_journal_db();
@@ -265,7 +265,7 @@ impl MiningBlockChainClient for TestBlockChainClient {
 		self.spec.ensure_db_good(db.as_hashdb_mut());
 
 		let last_hashes = vec![genesis_header.hash()];
-		OpenBlock::new(
+		let mut open_block = OpenBlock::new(
 			engine.deref(),
 			self.vm_factory(),
 			Default::default(),
@@ -273,10 +273,13 @@ impl MiningBlockChainClient for TestBlockChainClient {
 			db,
 			&genesis_header,
 			last_hashes,
-			Address::zero(),
+			author,
-			(3141562.into(), 31415620.into()),
+			gas_range_target,
-			vec![]
+			extra_data
-		).expect("Opening block for tests will not fail.")
+		).expect("Opening block for tests will not fail.");
+		// TODO [todr] Override timestamp for predictability (set_timestamp_now kind of sucks)
+		open_block.set_timestamp(10_000_000);
+		open_block
 	}
 
 	fn vm_factory(&self) -> &EvmFactory {

ethcore/src/engines/instant_seal.rs

@@ -0,0 +1,108 @@
+// 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/>.
+
+use std::collections::BTreeMap;
+use util::hash::Address;
+use builtin::Builtin;
+use engines::Engine;
+use spec::CommonParams;
+use evm::Schedule;
+use env_info::EnvInfo;
+use block::ExecutedBlock;
+use common::Bytes;
+use account_provider::AccountProvider;
+
+/// An engine which does not provide any consensus mechanism, just seals blocks internally.
+pub struct InstantSeal {
+	params: CommonParams,
+	builtins: BTreeMap<Address, Builtin>,
+}
+
+impl InstantSeal {
+	/// Returns new instance of InstantSeal with default VM Factory
+	pub fn new(params: CommonParams, builtins: BTreeMap<Address, Builtin>) -> Self {
+		InstantSeal {
+			params: params,
+			builtins: builtins,
+		}
+	}
+}
+
+impl Engine for InstantSeal {
+	fn name(&self) -> &str {
+		"InstantSeal"
+	}
+
+	fn params(&self) -> &CommonParams {
+		&self.params
+	}
+
+	fn builtins(&self) -> &BTreeMap<Address, Builtin> {
+		&self.builtins
+	}
+
+	fn schedule(&self, _env_info: &EnvInfo) -> Schedule {
+		Schedule::new_homestead()
+	}
+
+	fn generate_seal(&self, _block: &ExecutedBlock, _accounts: Option<&AccountProvider>) -> Option<Vec<Bytes>> {
+		Some(Vec::new())
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use common::*;
+	use tests::helpers::*;
+	use account_provider::AccountProvider;
+	use spec::Spec;
+	use block::*;
+
+	/// Create a new test chain spec with `BasicAuthority` consensus engine.
+	fn new_test_instant() -> Spec { Spec::load(include_bytes!("../../res/instant_seal.json")) }
+
+	#[test]
+	fn instant_can_seal() {
+		let tap = AccountProvider::transient_provider();
+		let addr = tap.insert_account("".sha3(), "").unwrap();
+
+		let spec = new_test_instant();
+		let engine = &spec.engine;
+		let genesis_header = spec.genesis_header();
+		let mut db_result = get_temp_journal_db();
+		let mut db = db_result.take();
+		spec.ensure_db_good(db.as_hashdb_mut());
+		let last_hashes = vec![genesis_header.hash()];
+		let vm_factory = Default::default();
+		let b = OpenBlock::new(engine.deref(), &vm_factory, Default::default(), false, db, &genesis_header, last_hashes, addr, (3141562.into(), 31415620.into()), vec![]).unwrap();
+		let b = b.close_and_lock();
+		// Seal with empty AccountProvider.
+		let seal = engine.generate_seal(b.block(), Some(&tap)).unwrap();
+		assert!(b.try_seal(engine.deref(), seal).is_ok());
+	}
+
+	#[test]
+	fn instant_cant_verify() {
+		let engine = new_test_instant().engine;
+		let mut header: Header = Header::default();
+
+		assert!(engine.verify_block_basic(&header, None).is_ok());
+
+		header.set_seal(vec![rlp::encode(&Signature::zero()).to_vec()]);
+
+		assert!(engine.verify_block_unordered(&header, None).is_ok());
+	}
+}

ethcore/src/engines/mod.rs

@@ -17,9 +17,11 @@
 //! Consensus engine specification and basic implementations.
 
 mod null_engine;
+mod instant_seal;
 mod basic_authority;
 
 pub use self::null_engine::NullEngine;
+pub use self::instant_seal::InstantSeal;
 pub use self::basic_authority::BasicAuthority;
 
 use common::*;

ethcore/src/evm/evm.rs

@@ -107,9 +107,9 @@ pub trait CostType: ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Out
 	fn overflow_add(self, other: Self) -> (Self, bool);
 	/// Multiple with overflow
 	fn overflow_mul(self, other: Self) -> (Self, bool);
-	/// Single-step full multiplication and division: `self*other/div`
+	/// Single-step full multiplication and shift: `(self*other) >> shr`
 	/// Should not overflow on intermediate steps
-	fn overflow_mul_div(self, other: Self, div: Self) -> (Self, bool);
+	fn overflow_mul_shr(self, other: Self, shr: usize) -> (Self, bool);
 }
 
 impl CostType for U256 {
@@ -133,14 +133,14 @@ impl CostType for U256 {
 		Uint::overflowing_mul(self, other)
 	}
 
-	fn overflow_mul_div(self, other: Self, div: Self) -> (Self, bool) {
+	fn overflow_mul_shr(self, other: Self, shr: usize) -> (Self, bool) {
 		let x = self.full_mul(other);
-		let (U512(parts), o) = Uint::overflowing_div(x, U512::from(div));
+		let U512(parts) = x;
 		let overflow = (parts[4] | parts[5] | parts[6] | parts[7]) > 0;
-
+		let U512(parts) = x >> shr;
 		(
 			U256([parts[0], parts[1], parts[2], parts[3]]),
-			o | overflow
+			overflow
 		)
 	}
 }
@@ -169,11 +169,13 @@ impl CostType for usize {
 		self.overflowing_mul(other)
 	}
 
-	fn overflow_mul_div(self, other: Self, div: Self) -> (Self, bool) {
+	fn overflow_mul_shr(self, other: Self, shr: usize) -> (Self, bool) {
 		let (c, o) = U128::from(self).overflowing_mul(U128::from(other));
-		let (U128(parts), o1) = c.overflowing_div(U128::from(div));
+		let U128(parts) = c;
+		let overflow = o | (parts[1] > 0);
+		let U128(parts) = c >> shr;
 		let result = parts[0] as usize;
-		let overflow = o | o1 | (parts[1] > 0) | (parts[0] > result as u64);
+		let overflow = overflow | (parts[0] > result as u64);
 		(result, overflow)
 	}
 }
@@ -189,13 +191,13 @@ pub trait Evm {
 
 
 #[test]
-fn should_calculate_overflow_mul_div_without_overflow() {
+fn should_calculate_overflow_mul_shr_without_overflow() {
 	// given
-	let num = 10_000_000;
+	let num = 1048576;
 
 	// when
-	let (res1, o1) = U256::from(num).overflow_mul_div(U256::from(num), U256::from(num));
+	let (res1, o1) = U256::from(num).overflow_mul_shr(U256::from(num), 20);
-	let (res2, o2) = num.overflow_mul_div(num, num);
+	let (res2, o2) = num.overflow_mul_shr(num, 20);
 
 	// then
 	assert_eq!(res1, U256::from(num));
@@ -205,22 +207,21 @@ fn should_calculate_overflow_mul_div_without_overflow() {
 }
 
 #[test]
-fn should_calculate_overflow_mul_div_with_overflow() {
+fn should_calculate_overflow_mul_shr_with_overflow() {
 	// given
 	let max = ::std::u64::MAX;
 	let num1 = U256([max, max, max, max]);
 	let num2 = ::std::usize::MAX;
 
 	// when
-	let (res1, o1) = num1.overflow_mul_div(num1, num1 - U256::from(2));
+	let (res1, o1) = num1.overflow_mul_shr(num1, 256);
-	let (res2, o2) = num2.overflow_mul_div(num2, num2 - 2);
+	let (res2, o2) = num2.overflow_mul_shr(num2, 64);
 
 	// then
-	// (x+2)^2/x = (x^2 + 4x + 4)/x = x + 4 + 4/x ~ (MAX-2) + 4 + 0 = 1
+	assert_eq!(res2, num2 - 1);
-	assert_eq!(res2, 1);
 	assert!(o2);
 
-	assert_eq!(res1, U256::from(1));
+	assert_eq!(res1, !U256::zero() - U256::one());
 	assert!(o1);
 }
 

ethcore/src/evm/ext.rs

@@ -18,8 +18,8 @@
 
 use util::common::*;
 use evm::{self, Schedule};
-use types::executed::CallType;
 use env_info::*;
+use types::executed::CallType;
 
 /// Result of externalities create function.
 pub enum ContractCreateResult {

ethcore/src/evm/interpreter/gasometer.rs

@@ -37,6 +37,7 @@ enum InstructionCost<Cost: CostType> {
 
 pub struct Gasometer<Gas: CostType> {
 	pub current_gas: Gas,
+	pub current_mem_gas: Gas,
 }
 
 impl<Gas: CostType> Gasometer<Gas> {
@@ -44,6 +45,7 @@ impl<Gas: CostType> Gasometer<Gas> {
 	pub fn new(current_gas: Gas) -> Self {
 		Gasometer {
 			current_gas: current_gas,
+			current_mem_gas: Gas::from(0),
 		}
 	}
 
@@ -62,7 +64,7 @@ impl<Gas: CostType> Gasometer<Gas> {
 		info: &InstructionInfo,
 		stack: &Stack<U256>,
 		current_mem_size: usize,
-	) -> evm::Result<(Gas, usize)> {
+	) -> evm::Result<(Gas, Gas, usize)> {
 		let schedule = ext.schedule();
 		let tier = instructions::get_tier_idx(info.tier);
 		let default_gas = Gas::from(schedule.tier_step_gas[tier]);
@@ -76,11 +78,11 @@ impl<Gas: CostType> Gasometer<Gas> {
 				let newval = stack.peek(1);
 				let val = U256::from(ext.storage_at(&address).as_slice());
 
-				let gas = if U256::zero() == val && &U256::zero() != newval {
+				let gas = if val.is_zero() && !newval.is_zero() {
 					schedule.sstore_set_gas
 				} else {
 					// Refund for below case is added when actually executing sstore
-					// !self.is_zero(&val) && self.is_zero(newval)
+					// !is_zero(&val) && is_zero(newval)
 					schedule.sstore_reset_gas
 				};
 				InstructionCost::Gas(Gas::from(gas))
@@ -89,25 +91,25 @@ impl<Gas: CostType> Gasometer<Gas> {
 				InstructionCost::Gas(Gas::from(schedule.sload_gas))
 			},
 			instructions::MSTORE | instructions::MLOAD => {
-				InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 32)))
+				InstructionCost::GasMem(default_gas, try!(mem_needed_const(stack.peek(0), 32)))
 			},
 			instructions::MSTORE8 => {
-				InstructionCost::GasMem(default_gas, try!(self.mem_needed_const(stack.peek(0), 1)))
+				InstructionCost::GasMem(default_gas, try!(mem_needed_const(stack.peek(0), 1)))
 			},
 			instructions::RETURN => {
-				InstructionCost::GasMem(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
+				InstructionCost::GasMem(default_gas, try!(mem_needed(stack.peek(0), stack.peek(1))))
 			},
 			instructions::SHA3 => {
 				let w = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(1))), 31));
 				let words = w >> 5;
 				let gas = Gas::from(schedule.sha3_gas) + (Gas::from(schedule.sha3_word_gas) * words);
-				InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
+				InstructionCost::GasMem(gas, try!(mem_needed(stack.peek(0), stack.peek(1))))
 			},
 			instructions::CALLDATACOPY | instructions::CODECOPY => {
-				InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(0), stack.peek(2))), try!(Gas::from_u256(*stack.peek(2))))
+				InstructionCost::GasMemCopy(default_gas, try!(mem_needed(stack.peek(0), stack.peek(2))), try!(Gas::from_u256(*stack.peek(2))))
 			},
 			instructions::EXTCODECOPY => {
-				InstructionCost::GasMemCopy(default_gas, try!(self.mem_needed(stack.peek(1), stack.peek(3))), try!(Gas::from_u256(*stack.peek(3))))
+				InstructionCost::GasMemCopy(default_gas, try!(mem_needed(stack.peek(1), stack.peek(3))), try!(Gas::from_u256(*stack.peek(3))))
 			},
 			instructions::LOG0...instructions::LOG4 => {
 				let no_of_topics = instructions::get_log_topics(instruction);
@@ -115,13 +117,13 @@ impl<Gas: CostType> Gasometer<Gas> {
 
 				let data_gas = overflowing!(try!(Gas::from_u256(*stack.peek(1))).overflow_mul(Gas::from(schedule.log_data_gas)));
 				let gas = overflowing!(data_gas.overflow_add(Gas::from(log_gas)));
-				InstructionCost::GasMem(gas, try!(self.mem_needed(stack.peek(0), stack.peek(1))))
+				InstructionCost::GasMem(gas, try!(mem_needed(stack.peek(0), stack.peek(1))))
 			},
 			instructions::CALL | instructions::CALLCODE => {
 				let mut gas  = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(0))), schedule.call_gas));
 				let mem = cmp::max(
-					try!(self.mem_needed(stack.peek(5), stack.peek(6))),
+					try!(mem_needed(stack.peek(5), stack.peek(6))),
-					try!(self.mem_needed(stack.peek(3), stack.peek(4)))
+					try!(mem_needed(stack.peek(3), stack.peek(4)))
 				);
 
 				let address = u256_to_address(stack.peek(1));
@@ -130,7 +132,7 @@ impl<Gas: CostType> Gasometer<Gas> {
 					gas = overflowing!(gas.overflow_add(Gas::from(schedule.call_new_account_gas)));
 				};
 
-				if stack.peek(2) > &U256::zero() {
+				if !stack.peek(2).is_zero() {
 					gas = overflowing!(gas.overflow_add(Gas::from(schedule.call_value_transfer_gas)));
 				};
 
@@ -139,14 +141,14 @@ impl<Gas: CostType> Gasometer<Gas> {
 			instructions::DELEGATECALL => {
 				let gas = overflowing!(add_gas_usize(try!(Gas::from_u256(*stack.peek(0))), schedule.call_gas));
 				let mem = cmp::max(
-					try!(self.mem_needed(stack.peek(4), stack.peek(5))),
+					try!(mem_needed(stack.peek(4), stack.peek(5))),
-					try!(self.mem_needed(stack.peek(2), stack.peek(3)))
+					try!(mem_needed(stack.peek(2), stack.peek(3)))
 				);
 				InstructionCost::GasMem(gas, mem)
 			},
 			instructions::CREATE => {
 				let gas = Gas::from(schedule.create_gas);
-				let mem = try!(self.mem_needed(stack.peek(1), stack.peek(2)));
+				let mem = try!(mem_needed(stack.peek(1), stack.peek(2)));
 				InstructionCost::GasMem(gas, mem)
 			},
 			instructions::EXP => {
@@ -160,66 +162,65 @@ impl<Gas: CostType> Gasometer<Gas> {
 
 		match cost {
 			InstructionCost::Gas(gas) => {
-				Ok((gas, 0))
+				Ok((gas, self.current_mem_gas, 0))
 			},
 			InstructionCost::GasMem(gas, mem_size) => {
-				let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
+				let (mem_gas_cost, new_mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
-				let gas = overflowing!(gas.overflow_add(mem_gas));
+				let gas = overflowing!(gas.overflow_add(mem_gas_cost));
-				Ok((gas, new_mem_size))
+				Ok((gas, new_mem_gas, new_mem_size))
 			},
 			InstructionCost::GasMemCopy(gas, mem_size, copy) => {
-				let (mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
+				let (mem_gas_cost, new_mem_gas, new_mem_size) = try!(self.mem_gas_cost(schedule, current_mem_size, &mem_size));
-				let copy = overflowing!(add_gas_usize(copy, 31));
+				let copy = overflowing!(add_gas_usize(copy, 31)) >> 5;
-				let copy_gas = Gas::from(schedule.copy_gas) * (copy / Gas::from(32 as usize));
+				let copy_gas = Gas::from(schedule.copy_gas) * copy;
 				let gas = overflowing!(gas.overflow_add(copy_gas));
-				let gas = overflowing!(gas.overflow_add(mem_gas));
+				let gas = overflowing!(gas.overflow_add(mem_gas_cost));
-				Ok((gas, new_mem_size))
+				Ok((gas, new_mem_gas, new_mem_size))
 			}
 		}
 	}
 
-	fn is_zero(&self, val: &Gas) -> bool {
+	fn mem_gas_cost(&self, schedule: &evm::Schedule, current_mem_size: usize, mem_size: &Gas) -> evm::Result<(Gas, Gas, usize)> {
-		&Gas::from(0) == val
-	}
-
-	fn mem_needed_const(&self, mem: &U256, add: usize) -> evm::Result<Gas> {
-		Gas::from_u256(overflowing!(mem.overflowing_add(U256::from(add))))
-	}
-
-	fn mem_needed(&self, offset: &U256, size: &U256) -> evm::Result<Gas> {
-		if self.is_zero(&try!(Gas::from_u256(*size))) {
-			return Ok(Gas::from(0));
-		}
-
-		Gas::from_u256(overflowing!(offset.overflowing_add(*size)))
-	}
-
-	fn mem_gas_cost(&self, schedule: &evm::Schedule, current_mem_size: usize, mem_size: &Gas) -> evm::Result<(Gas, usize)> {
 		let gas_for_mem = |mem_size: Gas| {
 			let s = mem_size >> 5;
 			// s * memory_gas + s * s / quad_coeff_div
 			let a = overflowing!(s.overflow_mul(Gas::from(schedule.memory_gas)));
 
 			// Calculate s*s/quad_coeff_div
-			let b = overflowing!(s.overflow_mul_div(s, Gas::from(schedule.quad_coeff_div)));
+			debug_assert_eq!(schedule.quad_coeff_div, 512);
+			let b = overflowing!(s.overflow_mul_shr(s, 9));
 			Ok(overflowing!(a.overflow_add(b)))
 		};
 
 		let current_mem_size = Gas::from(current_mem_size);
 		let req_mem_size_rounded = (overflowing!(mem_size.overflow_add(Gas::from(31 as usize))) >> 5) << 5;
 
-		let mem_gas_cost = if req_mem_size_rounded > current_mem_size {
+		let (mem_gas_cost, new_mem_gas) = if req_mem_size_rounded > current_mem_size {
 			let new_mem_gas = try!(gas_for_mem(req_mem_size_rounded));
-			let current_mem_gas = try!(gas_for_mem(current_mem_size));
+			(new_mem_gas - self.current_mem_gas, new_mem_gas)
-			new_mem_gas - current_mem_gas
 		} else {
-			Gas::from(0)
+			(Gas::from(0), self.current_mem_gas)
 		};
 
-		Ok((mem_gas_cost, req_mem_size_rounded.as_usize()))
+		Ok((mem_gas_cost, new_mem_gas, req_mem_size_rounded.as_usize()))
 	}
 }
 
+
+#[inline]
+fn mem_needed_const<Gas: CostType>(mem: &U256, add: usize) -> evm::Result<Gas> {
+	Gas::from_u256(overflowing!(mem.overflowing_add(U256::from(add))))
+}
+
+#[inline]
+fn mem_needed<Gas: CostType>(offset: &U256, size: &U256) -> evm::Result<Gas> {
+	if size.is_zero() {
+		return Ok(Gas::from(0));
+	}
+
+	Gas::from_u256(overflowing!(offset.overflowing_add(*size)))
+}
+
 #[inline]
 fn add_gas_usize<Gas: CostType>(value: Gas, num: usize) -> (Gas, bool) {
 	value.overflow_add(Gas::from(num))
@@ -251,9 +252,10 @@ fn test_calculate_mem_cost() {
 	let mem_size = 5;
 
 	// when
-	let (mem_cost, mem_size) = gasometer.mem_gas_cost(&schedule, current_mem_size, &mem_size).unwrap();
+	let (mem_cost, new_mem_gas, mem_size) = gasometer.mem_gas_cost(&schedule, current_mem_size, &mem_size).unwrap();
 
 	// then
 	assert_eq!(mem_cost, 3);
+	assert_eq!(new_mem_gas, 3);
 	assert_eq!(mem_size, 32);
 }

ethcore/src/evm/interpreter/mod.rs

@@ -41,6 +41,7 @@ use common::*;
 use types::executed::CallType;
 use super::instructions::{self, Instruction, InstructionInfo};
 use evm::{self, MessageCallResult, ContractCreateResult, GasLeft, CostType};
+use bit_set::BitSet;
 
 #[cfg(feature = "evm-debug")]
 fn color(instruction: Instruction, name: &'static str) -> String {
@@ -115,12 +116,13 @@ impl<Cost: CostType> evm::Evm for Interpreter<Cost> {
 			try!(self.verify_instruction(ext, instruction, &info, &stack));
 
 			// Calculate gas cost
-			let (gas_cost, mem_size) = try!(gasometer.get_gas_cost_mem(ext, instruction, &info, &stack, self.mem.size()));
+			let (gas_cost, mem_gas, mem_size) = try!(gasometer.get_gas_cost_mem(ext, instruction, &info, &stack, self.mem.size()));
 			// TODO: make compile-time removable if too much of a performance hit.
 			let trace_executed = ext.trace_prepare_execute(reader.position - 1, instruction, &gas_cost.as_u256());
 
 			try!(gasometer.verify_gas(&gas_cost));
 			self.mem.expand(mem_size);
+			gasometer.current_mem_gas = mem_gas;
 			gasometer.current_gas = gasometer.current_gas - gas_cost;
 
 			evm_debug!({
@@ -540,10 +542,10 @@ impl<Cost: CostType> Interpreter<Cost> {
 		}
 	}
 
-	fn verify_jump(&self, jump_u: U256, valid_jump_destinations: &HashSet<usize>) -> evm::Result<usize> {
+	fn verify_jump(&self, jump_u: U256, valid_jump_destinations: &BitSet) -> evm::Result<usize> {
 		let jump = jump_u.low_u64() as usize;
 
-		if valid_jump_destinations.contains(&jump) && jump_u < U256::from(!0 as usize) {
+		if valid_jump_destinations.contains(jump) && U256::from(jump) == jump_u {
 			Ok(jump)
 		} else {
 			Err(evm::Error::BadJumpDestination {
@@ -765,8 +767,8 @@ impl<Cost: CostType> Interpreter<Cost> {
 		Ok(())
 	}
 
-	fn find_jump_destinations(&self, code: &[u8]) -> HashSet<CodePosition> {
+	fn find_jump_destinations(&self, code: &[u8]) -> BitSet {
-		let mut jump_dests = HashSet::new();
+		let mut jump_dests = BitSet::with_capacity(code.len());
 		let mut position = 0;
 
 		while position < code.len() {
@@ -818,5 +820,5 @@ fn test_find_jump_destinations() {
 	let valid_jump_destinations = interpreter.find_jump_destinations(&code);
 
 	// then
-	assert!(valid_jump_destinations.contains(&66));
+	assert!(valid_jump_destinations.contains(66));
 }

ethcore/src/evm/mod.rs

@@ -35,3 +35,4 @@ pub use self::evm::{Evm, Error, Finalize, GasLeft, Result, CostType};
 pub use self::ext::{Ext, ContractCreateResult, MessageCallResult};
 pub use self::factory::{Factory, VMType};
 pub use self::schedule::Schedule;
+pub use types::executed::CallType;

ethcore/src/evm/schedule.rs

@@ -129,3 +129,14 @@ impl Schedule {
 		}
 	}
 }
+
+#[test]
+#[cfg(test)]
+fn schedule_evm_assumptions() {
+	let s1 = Schedule::new_frontier();
+	let s2 = Schedule::new_homestead();
+
+	// To optimize division we assume 2**9 for quad_coeff_div
+	assert_eq!(s1.quad_coeff_div, 512);
+	assert_eq!(s2.quad_coeff_div, 512);
+}

ethcore/src/lib.rs

@@ -95,6 +95,7 @@ pub extern crate ethstore;
 extern crate semver;
 extern crate ethcore_ipc_nano as nanoipc;
 extern crate ethcore_devtools as devtools;
+extern crate bit_set;
 
 #[cfg(feature = "jit" )] extern crate evmjit;
 
@@ -117,6 +118,7 @@ pub mod snapshot;
 pub mod action_params;
 #[macro_use] pub mod evm;
 
+mod cache_manager;
 mod blooms;
 mod db;
 mod common;

ethcore/src/miner/external.rs

@@ -16,7 +16,8 @@
 
 use std::collections::HashMap;
 use std::sync::Arc;
-use util::{RwLock, U256, H256};
+use std::time::{Instant, Duration};
+use util::{Mutex, U256, H256};
 
 /// External miner interface.
 pub trait ExternalMinerService: Send + Sync {
@@ -25,50 +26,50 @@ pub trait ExternalMinerService: Send + Sync {
 
 	/// Total hashrate.
 	fn hashrate(&self) -> U256;
-
-	/// Returns true if external miner is mining.
-	fn is_mining(&self) -> bool;
 }
 
 /// External Miner.
 pub struct ExternalMiner {
-	hashrates: Arc<RwLock<HashMap<H256, U256>>>,
+	hashrates: Arc<Mutex<HashMap<H256, (Instant, U256)>>>,
 }
 
 impl Default for ExternalMiner {
 	fn default() -> Self {
 		ExternalMiner {
-			hashrates: Arc::new(RwLock::new(HashMap::new())),
+			hashrates: Arc::new(Mutex::new(HashMap::new())),
 		}
 	}
 }
 
 impl ExternalMiner {
 	/// Creates new external miner with prefilled hashrates.
-	pub fn new(hashrates: Arc<RwLock<HashMap<H256, U256>>>) -> Self {
+	pub fn new(hashrates: Arc<Mutex<HashMap<H256, (Instant, U256)>>>) -> Self {
 		ExternalMiner {
-			hashrates: hashrates
+			hashrates: hashrates,
 		}
 	}
 }
 
+const ENTRY_TIMEOUT: u64 = 2;
+
 impl ExternalMinerService for ExternalMiner {
 	fn submit_hashrate(&self, hashrate: U256, id: H256) {
-		self.hashrates.write().insert(id, hashrate);
+		self.hashrates.lock().insert(id, (Instant::now() + Duration::from_secs(ENTRY_TIMEOUT), hashrate));
 	}
 
 	fn hashrate(&self) -> U256 {
-		self.hashrates.read().iter().fold(U256::from(0), |sum, (_, v)| sum + *v)
+		let mut hashrates = self.hashrates.lock();
-	}
+		let h = hashrates.drain().filter(|&(_, (t, _))| t > Instant::now()).collect();
-
+		*hashrates = h;
-	fn is_mining(&self) -> bool {
+		hashrates.iter().fold(U256::from(0), |sum, (_, &(_, v))| sum + v)
-		!self.hashrates.read().is_empty()
 	}
 }
 
 #[cfg(test)]
 mod tests {
 	use super::*;
+	use std::thread::sleep;
+	use std::time::Duration;
 	use util::{H256, U256};
 
 	fn miner() -> ExternalMiner {
@@ -76,16 +77,18 @@ mod tests {
 	}
 
 	#[test]
-	fn should_return_that_is_mining_if_there_is_at_least_one_entry() {
+	fn it_should_forget_old_hashrates() {
 		// given
 		let m = miner();
-		assert_eq!(m.is_mining(), false);
+		assert_eq!(m.hashrate(), U256::from(0));
+		m.submit_hashrate(U256::from(10), H256::from(1));
+		assert_eq!(m.hashrate(), U256::from(10));
 
 		// when
-		m.submit_hashrate(U256::from(10), H256::from(1));
+		sleep(Duration::from_secs(3));
 
 		// then
-		assert_eq!(m.is_mining(), true);
+		assert_eq!(m.hashrate(), U256::from(0));
 	}
 
 	#[test]

ethcore/src/miner/miner.rs

@@ -780,6 +780,10 @@ impl MinerService for Miner {
 		}
 	}
 
+	fn is_sealing(&self) -> bool {
+		self.sealing_work.lock().queue.is_in_use()
+	}
+
 	fn map_sealing_work<F, T>(&self, chain: &MiningBlockChainClient, f: F) -> Option<T> where F: FnOnce(&ClosedBlock) -> T {
 		trace!(target: "miner", "map_sealing_work: entering");
 		self.enable_and_prepare_sealing(chain);

ethcore/src/miner/mod.rs

@@ -150,6 +150,9 @@ pub trait MinerService : Send + Sync {
 	/// Returns highest transaction nonce for given address.
 	fn last_nonce(&self, address: &Address) -> Option<U256>;
 
+	/// Is it currently sealing?
+	fn is_sealing(&self) -> bool;
+
 	/// Suggested gas price.
 	fn sensible_gas_price(&self) -> U256 { 20000000000u64.into() }
 

ethcore/src/pod_account.rs

@@ -96,7 +96,7 @@ impl From<ethjson::spec::Account> for PodAccount {
 		PodAccount {
 			balance: a.balance.map_or_else(U256::zero, Into::into),
 			nonce: a.nonce.map_or_else(U256::zero, Into::into),
-			code: Some(vec![]),
+			code: a.code.map(Into::into).or(Some(Vec::new())),
 			storage: BTreeMap::new()
 		}
 	}

ethcore/src/spec/spec.rs

@@ -17,7 +17,7 @@
 //! Parameters for a block chain.
 
 use common::*;
-use engines::{Engine, NullEngine, BasicAuthority};
+use engines::{Engine, NullEngine, InstantSeal, BasicAuthority};
 use pod_state::*;
 use account_db::*;
 use super::genesis::Genesis;
@@ -133,6 +133,7 @@ impl Spec {
 	fn engine(engine_spec: ethjson::spec::Engine, params: CommonParams, builtins: BTreeMap<Address, Builtin>) -> Box<Engine> {
 		match engine_spec {
 			ethjson::spec::Engine::Null => Box::new(NullEngine::new(params, builtins)),
+			ethjson::spec::Engine::InstantSeal => Box::new(InstantSeal::new(params, builtins)),
 			ethjson::spec::Engine::Ethash(ethash) => Box::new(ethereum::Ethash::new(params, From::from(ethash.params), builtins)),
 			ethjson::spec::Engine::BasicAuthority(basic_authority) => Box::new(BasicAuthority::new(params, From::from(basic_authority.params), builtins)),
 		}

ethcore/src/state.rs

@@ -167,22 +167,26 @@ impl State {
 
 	/// Get the balance of account `a`.
 	pub fn balance(&self, a: &Address) -> U256 {
-		self.get(a, false).as_ref().map_or(U256::zero(), |account| *account.balance())
+		self.ensure_cached(a, false,
+			|a| a.as_ref().map_or(U256::zero(), |account| *account.balance()))
 	}
 
 	/// Get the nonce of account `a`.
 	pub fn nonce(&self, a: &Address) -> U256 {
-		self.get(a, false).as_ref().map_or(U256::zero(), |account| *account.nonce())
+		self.ensure_cached(a, false,
+			|a| a.as_ref().map_or(U256::zero(), |account| *account.nonce()))
 	}
 
 	/// Mutate storage of account `address` so that it is `value` for `key`.
 	pub fn storage_at(&self, address: &Address, key: &H256) -> H256 {
-		self.get(address, false).as_ref().map_or(H256::new(), |a|a.storage_at(&AccountDB::new(self.db.as_hashdb(), address), key))
+		self.ensure_cached(address, false,
+			|a| a.as_ref().map_or(H256::new(), |a|a.storage_at(&AccountDB::new(self.db.as_hashdb(), address), key)))
 	}
 
 	/// Mutate storage of account `a` so that it is `value` for `key`.
 	pub fn code(&self, a: &Address) -> Option<Bytes> {
-		self.get(a, true).as_ref().map_or(None, |a|a.code().map(|x|x.to_vec()))
+		self.ensure_cached(a, true,
+			|a| a.as_ref().map_or(None, |a|a.code().map(|x|x.to_vec())))
 	}
 
 	/// Add `incr` to the balance of account `a`.
@@ -306,11 +310,13 @@ impl State {
 
 	fn query_pod(&mut self, query: &PodState) {
 		for (ref address, ref pod_account) in query.get() {
-			if self.get(address, true).is_some() {
+			self.ensure_cached(address, true, |a| {
+				if a.is_some() {
 					for key in pod_account.storage.keys() {
 						self.storage_at(address, key);
 					}
 				}
+			});
 		}
 	}
 
@@ -323,9 +329,10 @@ impl State {
 		pod_state::diff_pod(&state_pre.to_pod(), &pod_state_post)
 	}
 
-	/// Pull account `a` in our cache from the trie DB and return it.
+	/// Ensure account `a` is in our cache of the trie DB and return a handle for getting it.
 	/// `require_code` requires that the code be cached, too.
-	fn get<'a>(&'a self, a: &Address, require_code: bool) -> &'a Option<Account> {
+	fn ensure_cached<'a, F, U>(&'a self, a: &'a Address, require_code: bool, f: F) -> U
+		where F: FnOnce(&Option<Account>) -> U {
 		let have_key = self.cache.borrow().contains_key(a);
 		if !have_key {
 			let db = self.trie_factory.readonly(self.db.as_hashdb(), &self.root).expect(SEC_TRIE_DB_UNWRAP_STR);
@@ -336,7 +343,8 @@ impl State {
 				account.cache_code(&AccountDB::new(self.db.as_hashdb(), a));
 			}
 		}
-		unsafe { ::std::mem::transmute(self.cache.borrow().get(a).unwrap()) }
+
+		f(self.cache.borrow().get(a).unwrap())
 	}
 
 	/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.

ethcore/src/tests/helpers.rs

@@ -261,6 +261,7 @@ pub fn generate_dummy_blockchain(block_number: u32) -> GuardedTempResult<BlockCh
 	let batch = db.transaction();
 	for block_order in 1..block_number {
 		bc.insert_block(&batch, &create_unverifiable_block(block_order, bc.best_block_hash()), vec![]);
+		bc.commit();
 	}
 	db.write(batch).unwrap();
 
@@ -279,6 +280,7 @@ pub fn generate_dummy_blockchain_with_extra(block_number: u32) -> GuardedTempRes
 	let batch = db.transaction();
 	for block_order in 1..block_number {
 		bc.insert_block(&batch, &create_unverifiable_block_with_extra(block_order, bc.best_block_hash(), None), vec![]);
+		bc.commit();
 	}
 	db.write(batch).unwrap();
 

ethcore/src/trace/config.rs

@@ -68,8 +68,10 @@ pub struct Config {
 	pub enabled: Switch,
 	/// Traces blooms configuration.
 	pub blooms: BloomConfig,
-	/// Database cache-size if not default
+	/// Preferef cache-size.
-	pub db_cache_size: Option<usize>,
+	pub pref_cache_size: usize,
+	/// Max cache-size.
+	pub max_cache_size: usize,
 }
 
 impl Default for Config {
@@ -80,7 +82,8 @@ impl Default for Config {
 				levels: 3,
 				elements_per_index: 16,
 			},
-			db_cache_size: None,
+			pref_cache_size: 15 * 1024 * 1024,
+			max_cache_size: 20 * 1024 * 1024,
 		}
 	}
 }

ethcore/src/trace/db.rs

@@ -20,14 +20,14 @@ use std::collections::HashMap;
 use std::sync::Arc;
 use bloomchain::{Number, Config as BloomConfig};
 use bloomchain::group::{BloomGroupDatabase, BloomGroupChain, GroupPosition, BloomGroup};
-use util::{H256, H264, Database, DBTransaction, RwLock};
+use util::{H256, H264, Database, DBTransaction, RwLock, HeapSizeOf};
 use header::BlockNumber;
 use trace::{LocalizedTrace, Config, Switch, Filter, Database as TraceDatabase, ImportRequest, DatabaseExtras, Error};
 use db::{Key, Writable, Readable, CacheUpdatePolicy};
 use blooms;
 use super::flat::{FlatTrace, FlatBlockTraces, FlatTransactionTraces};
 use client::DB_COL_TRACE;
-
+use cache_manager::CacheManager;
 
 const TRACE_DB_VER: &'static [u8] = b"1.0";
 
@@ -62,6 +62,12 @@ impl From<GroupPosition> for TraceGroupPosition {
 	}
 }
 
+impl HeapSizeOf for TraceGroupPosition {
+	fn heap_size_of_children(&self) -> usize {
+		0
+	}
+}
+
 /// Helper data structure created cause [u8; 6] does not implement Deref to &[u8].
 pub struct TraceGroupKey([u8; 6]);
 
@@ -88,11 +94,18 @@ impl Key<blooms::BloomGroup> for TraceGroupPosition {
 	}
 }
 
+#[derive(Debug, Hash, Eq, PartialEq)]
+enum CacheID {
+	Trace(H256),
+	Bloom(TraceGroupPosition),
+}
+
 /// Trace database.
 pub struct TraceDB<T> where T: DatabaseExtras {
 	// cache
 	traces: RwLock<HashMap<H256, FlatBlockTraces>>,
 	blooms: RwLock<HashMap<TraceGroupPosition, blooms::BloomGroup>>,
+	cache_manager: RwLock<CacheManager<CacheID>>,
 	// db
 	tracesdb: Arc<Database>,
 	// config,
@@ -106,6 +119,7 @@ pub struct TraceDB<T> where T: DatabaseExtras {
 impl<T> BloomGroupDatabase for TraceDB<T> where T: DatabaseExtras {
 	fn blooms_at(&self, position: &GroupPosition) -> Option<BloomGroup> {
 		let position = TraceGroupPosition::from(position.clone());
+		self.note_used(CacheID::Bloom(position.clone()));
 		self.tracesdb.read_with_cache(DB_COL_TRACE, &self.blooms, &position).map(Into::into)
 	}
 }
@@ -136,6 +150,7 @@ impl<T> TraceDB<T> where T: DatabaseExtras {
 		let db = TraceDB {
 			traces: RwLock::new(HashMap::new()),
 			blooms: RwLock::new(HashMap::new()),
+			cache_manager: RwLock::new(CacheManager::new(config.pref_cache_size, config.max_cache_size, 10 * 1024)),
 			tracesdb: tracesdb,
 			bloom_config: config.blooms,
 			enabled: enabled,
@@ -145,8 +160,39 @@ impl<T> TraceDB<T> where T: DatabaseExtras {
 		Ok(db)
 	}
 
+	fn cache_size(&self) -> usize {
+		let traces = self.traces.read().heap_size_of_children();
+		let blooms = self.blooms.read().heap_size_of_children();
+		traces + blooms
+	}
+
+	/// Let the cache system know that a cacheable item has been used.
+	fn note_used(&self, id: CacheID) {
+		let mut cache_manager = self.cache_manager.write();
+		cache_manager.note_used(id);
+	}
+
+	/// Ticks our cache system and throws out any old data.
+	pub fn collect_garbage(&self) {
+		let mut cache_manager = self.cache_manager.write();
+		cache_manager.collect_garbage(|| self.cache_size(), | ids | {
+			let mut traces = self.traces.write();
+			let mut blooms = self.blooms.write();
+
+			for id in &ids {
+				match *id {
+					CacheID::Trace(ref h) => { traces.remove(h); },
+					CacheID::Bloom(ref h) => { blooms.remove(h); },
+				}
+			}
+			traces.shrink_to_fit();
+			blooms.shrink_to_fit();
+		});
+	}
+
 	/// Returns traces for block with hash.
 	fn traces(&self, block_hash: &H256) -> Option<FlatBlockTraces> {
+		self.note_used(CacheID::Trace(block_hash.clone()));
 		self.tracesdb.read_with_cache(DB_COL_TRACE, &self.traces, block_hash)
 	}
 
@@ -218,6 +264,8 @@ impl<T> TraceDatabase for TraceDB<T> where T: DatabaseExtras {
 
 		// at first, let's insert new block traces
 		{
+			// note_used must be called before locking traces to avoid cache/traces deadlock on garbage collection
+			self.note_used(CacheID::Trace(request.block_hash.clone()));
 			let mut traces = self.traces.write();
 			// it's important to use overwrite here,
 			// cause this value might be queried by hash later
@@ -247,6 +295,9 @@ impl<T> TraceDatabase for TraceDB<T> where T: DatabaseExtras {
 				.collect::<HashMap<TraceGroupPosition, blooms::BloomGroup>>();
 
 			let mut blooms = self.blooms.write();
+			for key in blooms_to_insert.keys() {
+				self.note_used(CacheID::Bloom(key.clone()));
+			}
 			batch.extend_with_cache(DB_COL_TRACE, blooms.deref_mut(), blooms_to_insert, CacheUpdatePolicy::Remove);
 		}
 	}
@@ -373,6 +424,7 @@ mod tests {
 		}
 	}
 
+	#[derive(Clone)]
 	struct Extras {
 		block_hashes: HashMap<BlockNumber, H256>,
 		transaction_hashes: HashMap<BlockNumber, Vec<H256>>,
@@ -600,4 +652,36 @@ mod tests {
 		assert_eq!(tracedb.trace(0, 0, vec![]).unwrap(), create_simple_localized_trace(0, block_0.clone(), tx_0.clone()));
 		assert_eq!(tracedb.trace(1, 0, vec![]).unwrap(), create_simple_localized_trace(1, block_1.clone(), tx_1.clone()));
 	}
+
+	#[test]
+	fn query_trace_after_reopen() {
+		let temp = RandomTempPath::new();
+		let db = new_db(temp.as_str());
+		let mut config = Config::default();
+		let mut extras = Extras::default();
+		let block_0 = H256::from(0xa1);
+		let tx_0 = H256::from(0xff);
+
+		extras.block_hashes.insert(0, block_0.clone());
+		extras.transaction_hashes.insert(0, vec![tx_0.clone()]);
+
+		// set tracing on
+		config.enabled = Switch::On;
+
+		{
+			let tracedb = TraceDB::new(config.clone(), db.clone(), Arc::new(extras.clone())).unwrap();
+
+			// import block 0
+			let request = create_simple_import_request(0, block_0.clone());
+			let batch = DBTransaction::new(&db);
+			tracedb.import(&batch, request);
+			db.write(batch).unwrap();
+		}
+
+		{
+			let tracedb = TraceDB::new(config.clone(), db.clone(), Arc::new(extras)).unwrap();
+			let traces = tracedb.transaction_traces(0, 0);
+			assert_eq!(traces.unwrap(), vec![create_simple_localized_trace(0, block_0, tx_0)]);
+		}
+	}
 }

ethcore/src/types/mod.rs

@@ -17,4 +17,4 @@
 //! Types used in the public api
 
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
-include!(concat!(env!("OUT_DIR"), "/types.rs"));
+include!(concat!(env!("OUT_DIR"), "/mod.rs.in"));

ethcore/src/types/trace_types/flat.rs

@@ -20,6 +20,7 @@ use std::collections::VecDeque;
 use std::mem;
 use ipc::binary::BinaryConvertError;
 use util::rlp::*;
+use util::HeapSizeOf;
 use basic_types::LogBloom;
 use super::trace::{Action, Res};
 
@@ -47,6 +48,12 @@ impl FlatTrace {
 	}
 }
 
+impl HeapSizeOf for FlatTrace {
+	fn heap_size_of_children(&self) -> usize {
+		self.trace_address.heap_size_of_children()
+	}
+}
+
 impl Encodable for FlatTrace {
 	fn rlp_append(&self, s: &mut RlpStream) {
 		s.begin_list(4);
@@ -82,6 +89,12 @@ impl From<Vec<FlatTrace>> for FlatTransactionTraces {
 	}
 }
 
+impl HeapSizeOf for FlatTransactionTraces {
+	fn heap_size_of_children(&self) -> usize {
+		self.0.heap_size_of_children()
+	}
+}
+
 impl FlatTransactionTraces {
 	/// Returns bloom of all traces in the collection.
 	pub fn bloom(&self) -> LogBloom {
@@ -111,6 +124,12 @@ impl Into<Vec<FlatTrace>> for FlatTransactionTraces {
 #[derive(Debug, PartialEq, Clone)]
 pub struct FlatBlockTraces(Vec<FlatTransactionTraces>);
 
+impl HeapSizeOf for FlatBlockTraces {
+	fn heap_size_of_children(&self) -> usize {
+		self.0.heap_size_of_children()
+	}
+}
+
 impl From<Vec<FlatTransactionTraces>> for FlatBlockTraces {
 	fn from(v: Vec<FlatTransactionTraces>) -> Self {
 		FlatBlockTraces(v)
@@ -145,31 +164,63 @@ impl Into<Vec<FlatTransactionTraces>> for FlatBlockTraces {
 #[cfg(test)]
 mod tests {
 	use super::{FlatBlockTraces, FlatTransactionTraces, FlatTrace};
-	use trace::trace::{Action, Res, CallResult, Call};
+	use trace::trace::{Action, Res, CallResult, Call, Suicide};
 	use types::executed::CallType;
 
 	#[test]
 	fn test_trace_serialization() {
 		use util::rlp;
+		// block #51921
 
 		let flat_trace = FlatTrace {
 			action: Action::Call(Call {
-				from: 1.into(),
+				from: "8dda5e016e674683241bf671cced51e7239ea2bc".parse().unwrap(),
-				to: 2.into(),
+				to: "37a5e19cc2d49f244805d5c268c0e6f321965ab9".parse().unwrap(),
-				value: 3.into(),
+				value: "3627e8f712373c0000".parse().unwrap(),
-				gas: 4.into(),
+				gas: 0x03e8.into(),
-				input: vec![0x5],
+				input: vec![],
 				call_type: CallType::Call,
 			}),
 			result: Res::Call(CallResult {
-				gas_used: 10.into(),
+				gas_used: 0.into(),
-				output: vec![0x11, 0x12]
+				output: vec![],
 			}),
 			trace_address: Default::default(),
 			subtraces: 0,
 		};
 
-		let block_traces = FlatBlockTraces(vec![FlatTransactionTraces(vec![flat_trace])]);
+		let flat_trace1 = FlatTrace {
+			action: Action::Call(Call {
+				from: "3d0768da09ce77d25e2d998e6a7b6ed4b9116c2d".parse().unwrap(),
+				to: "412fda7643b37d436cb40628f6dbbb80a07267ed".parse().unwrap(),
+				value: 0.into(),
+				gas: 0x010c78.into(),
+				input: vec![0x41, 0xc0, 0xe1, 0xb5],
+				call_type: CallType::Call,
+			}),
+			result: Res::Call(CallResult {
+				gas_used: 0x0127.into(),
+				output: vec![],
+			}),
+			trace_address: Default::default(),
+			subtraces: 1,
+		};
+
+		let flat_trace2 = FlatTrace {
+			action: Action::Suicide(Suicide {
+				address: "412fda7643b37d436cb40628f6dbbb80a07267ed".parse().unwrap(),
+				balance: 0.into(),
+				refund_address: "3d0768da09ce77d25e2d998e6a7b6ed4b9116c2d".parse().unwrap(),
+			}),
+			result: Res::None,
+			trace_address: vec![0].into_iter().collect(),
+			subtraces: 0,
+		};
+
+		let block_traces = FlatBlockTraces(vec![
+			FlatTransactionTraces(vec![flat_trace]),
+			FlatTransactionTraces(vec![flat_trace1, flat_trace2])
+		]);
 
 		let encoded = rlp::encode(&block_traces);
 		let decoded = rlp::decode(&encoded);

ethcore/src/types/trace_types/trace.rs

@@ -252,7 +252,7 @@ impl Decodable for Suicide {
 		let res = Suicide {
 			address: try!(d.val_at(0)),
 			refund_address: try!(d.val_at(1)),
-			balance: try!(d.val_at(3)),
+			balance: try!(d.val_at(2)),
 		};
 
 		Ok(res)
@@ -298,7 +298,7 @@ impl Decodable for Action {
 		match action_type {
 			0 => d.val_at(1).map(Action::Call),
 			1 => d.val_at(1).map(Action::Create),
-			2 => d.val_at(2).map(Action::Suicide),
+			2 => d.val_at(1).map(Action::Suicide),
 			_ => Err(DecoderError::Custom("Invalid action type.")),
 		}
 	}

ethstore/src/bin/ethstore.rs

@@ -138,7 +138,7 @@ fn execute<S, I>(command: I) -> Result<String, Error> where I: IntoIterator<Item
 		let ok = store.change_password(&address, &old_pwd, &new_pwd).is_ok();
 		Ok(format!("{}", ok))
 	} else if args.cmd_list {
-		let accounts = store.accounts();
+		let accounts = try!(store.accounts());
 		Ok(format_accounts(&accounts))
 	} else if args.cmd_import {
 		let src = try!(key_dir(&args.flag_src));

ethstore/src/crypto.rs

@@ -68,7 +68,7 @@ pub mod aes {
 	use rcrypto::blockmodes::{CtrMode, CbcDecryptor, PkcsPadding};
 	use rcrypto::aessafe::{AesSafe128Encryptor, AesSafe128Decryptor};
 	use rcrypto::symmetriccipher::{Encryptor, Decryptor, SymmetricCipherError};
-	use rcrypto::buffer::{RefReadBuffer, RefWriteBuffer};
+	use rcrypto::buffer::{RefReadBuffer, RefWriteBuffer, WriteBuffer};
 
 	/// Encrypt a message
 	pub fn encrypt(k: &[u8], iv: &[u8], plain: &[u8], dest: &mut [u8]) {
@@ -83,10 +83,12 @@ pub mod aes {
 	}
 
 	/// Decrypt a message using cbc mode
-	pub fn decrypt_cbc(k: &[u8], iv: &[u8], encrypted: &[u8], dest: &mut [u8]) -> Result<(), SymmetricCipherError> {
+	pub fn decrypt_cbc(k: &[u8], iv: &[u8], encrypted: &[u8], dest: &mut [u8]) -> Result<usize, SymmetricCipherError> {
 		let mut encryptor = CbcDecryptor::new(AesSafe128Decryptor::new(k), PkcsPadding, iv.to_vec());
-		try!(encryptor.decrypt(&mut RefReadBuffer::new(encrypted), &mut RefWriteBuffer::new(dest), true));
+		let len = dest.len();
-		Ok(())
+		let mut buffer = RefWriteBuffer::new(dest);
+		try!(encryptor.decrypt(&mut RefReadBuffer::new(encrypted), &mut buffer, true));
+		Ok(len - buffer.remaining())
 	}
 
 }

ethstore/src/ethstore.rs

@@ -16,6 +16,7 @@
 
 use std::collections::BTreeMap;
 use std::sync::RwLock;
+use std::mem;
 use ethkey::KeyPair;
 use crypto::KEY_ITERATIONS;
 use random::Random;
@@ -56,6 +57,26 @@ impl EthStore {
 		cache.insert(account.address.clone(), account);
 		Ok(())
 	}
+
+	fn reload_accounts(&self) -> Result<(), Error> {
+		let mut cache = self.cache.write().unwrap();
+		let accounts = try!(self.dir.load());
+		let new_accounts: BTreeMap<_, _> = accounts.into_iter().map(|account| (account.address.clone(), account)).collect();
+		mem::replace(&mut *cache, new_accounts);
+		Ok(())
+	}
+
+	fn get(&self, address: &Address) -> Result<SafeAccount, Error> {
+		{
+			let cache = self.cache.read().unwrap();
+			if let Some(account) = cache.get(address) {
+				return Ok(account.clone())
+			}
+		}
+		try!(self.reload_accounts());
+		let cache = self.cache.read().unwrap();
+		cache.get(address).cloned().ok_or(Error::InvalidAccount)
+	}
 }
 
 impl SecretStore for EthStore {
@@ -68,17 +89,15 @@ impl SecretStore for EthStore {
 		Ok(address)
 	}
 
-	fn accounts(&self) -> Vec<Address> {
+	fn accounts(&self) -> Result<Vec<Address>, Error> {
-		self.cache.read().unwrap().keys().cloned().collect()
+		try!(self.reload_accounts());
+		Ok(self.cache.read().unwrap().keys().cloned().collect())
 	}
 
 	fn change_password(&self, address: &Address, old_password: &str, new_password: &str) -> Result<(), Error> {
 		// change password
-		let account = {
+		let account = try!(self.get(address));
-			let cache = self.cache.read().unwrap();
+		let account = try!(account.change_password(old_password, new_password, self.iterations));
-			let account = try!(cache.get(address).ok_or(Error::InvalidAccount));
-			try!(account.change_password(old_password, new_password, self.iterations))
-		};
 
 		// save to file
 		self.save(account)
@@ -86,8 +105,7 @@ impl SecretStore for EthStore {
 
 	fn remove_account(&self, address: &Address, password: &str) -> Result<(), Error> {
 		let can_remove = {
-			let cache = self.cache.read().unwrap();
+			let account = try!(self.get(address));
-			let account = try!(cache.get(address).ok_or(Error::InvalidAccount));
 			account.check_password(password)
 		};
 
@@ -101,49 +119,37 @@ impl SecretStore for EthStore {
 		}
 	}
 
-	fn sign(&self, account: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
+	fn sign(&self, address: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
-		let cache = self.cache.read().unwrap();
+		let account = try!(self.get(address));
-		let account = try!(cache.get(account).ok_or(Error::InvalidAccount));
 		account.sign(password, message)
 	}
 
-	fn uuid(&self, addr: &Address) -> Result<UUID, Error> {
+	fn uuid(&self, address: &Address) -> Result<UUID, Error> {
-		let cache = self.cache.read().unwrap();
+		let account = try!(self.get(address));
-		let account = try!(cache.get(addr).ok_or(Error::InvalidAccount));
 		Ok(account.id.into())
 	}
 
-	fn name(&self, addr: &Address) -> Result<String, Error> {
+	fn name(&self, address: &Address) -> Result<String, Error> {
-		let cache = self.cache.read().unwrap();
+		let account = try!(self.get(address));
-		let account = try!(cache.get(addr).ok_or(Error::InvalidAccount));
 		Ok(account.name.clone())
 	}
 
-	fn meta(&self, addr: &Address) -> Result<String, Error> {
+	fn meta(&self, address: &Address) -> Result<String, Error> {
-		let cache = self.cache.read().unwrap();
+		let account = try!(self.get(address));
-		let account = try!(cache.get(addr).ok_or(Error::InvalidAccount));
 		Ok(account.meta.clone())
 	}
 
-	fn set_name(&self, addr: &Address, name: String) -> Result<(), Error> {
+	fn set_name(&self, address: &Address, name: String) -> Result<(), Error> {
-		let account = {
+		let mut account = try!(self.get(address));
-			let cache = self.cache.read().unwrap();
-			let mut account = try!(cache.get(addr).ok_or(Error::InvalidAccount)).clone();
 		account.name = name;
-			account
-		};
 
 		// save to file
 		self.save(account)
 	}
 
-	fn set_meta(&self, addr: &Address, meta: String) -> Result<(), Error> {
+	fn set_meta(&self, address: &Address, meta: String) -> Result<(), Error> {
-		let account = {
+		let mut account = try!(self.get(address));
-			let cache = self.cache.read().unwrap();
-			let mut account = try!(cache.get(addr).ok_or(Error::InvalidAccount)).clone();
 		account.meta = meta;
-			account
-		};
 
 		// save to file
 		self.save(account)

ethstore/src/json/hash.rs

@@ -109,4 +109,3 @@ macro_rules! impl_hash {
 impl_hash!(H128, 16);
 impl_hash!(H160, 20);
 impl_hash!(H256, 32);
-impl_hash!(H768, 96);

ethstore/src/json/mod.rs.in

@@ -11,10 +11,10 @@ mod version;
 pub use self::cipher::{Cipher, CipherSer, CipherSerParams, Aes128Ctr};
 pub use self::crypto::Crypto;
 pub use self::error::Error;
-pub use self::hash::{H128, H160, H256, H768};
+pub use self::hash::{H128, H160, H256};
 pub use self::id::UUID;
 pub use self::kdf::{Kdf, KdfSer, Prf, Pbkdf2, Scrypt, KdfSerParams};
 pub use self::key_file::KeyFile;
-pub use self::presale::PresaleWallet;
+pub use self::presale::{PresaleWallet, Encseed};
 pub use self::version::Version;
 

ethstore/src/json/presale.rs

@@ -1,10 +1,34 @@
 use std::io::Read;
+use std::ops::Deref;
 use serde_json;
-use super::{H160, H768};
+use serde::{Deserialize, Deserializer, Error};
+use rustc_serialize::hex::FromHex;
+use super::{H160};
+
+#[derive(Debug, PartialEq)]
+pub struct Encseed(Vec<u8>);
+
+impl Deref for Encseed {
+	type Target = [u8];
+
+	fn deref(&self) -> &Self::Target {
+		&self.0
+	}
+}
+
+impl Deserialize for Encseed {
+	fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
+		where D: Deserializer
+	{
+		let s = try!(String::deserialize(deserializer));
+		let data = try!(s.from_hex().map_err(|e| Error::custom(format!("Invalid hex value {}", e))));
+		Ok(Encseed(data))
+	}
+}
 
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct PresaleWallet {
-	pub encseed: H768,
+	pub encseed: Encseed,
 	#[serde(rename = "ethaddr")]
 	pub address: H160,
 }
@@ -19,7 +43,8 @@ impl PresaleWallet {
 mod tests {
 	use std::str::FromStr;
 	use serde_json;
-	use json::{PresaleWallet, H160, H768};
+	use rustc_serialize::hex::FromHex;
+	use json::{PresaleWallet, H160, Encseed};
 
 	#[test]
 	fn presale_wallet() {
@@ -32,7 +57,27 @@ mod tests {
 		} "#;
 
 		let expected = PresaleWallet {
-			encseed: H768::from_str("137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066").unwrap(),
+			encseed: Encseed("137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066".from_hex().unwrap()),
+			address: H160::from_str("ede84640d1a1d3e06902048e67aa7db8d52c2ce1").unwrap(),
+		};
+
+		let wallet: PresaleWallet = serde_json::from_str(json).unwrap();
+		assert_eq!(expected, wallet);
+	}
+
+	#[test]
+	fn long_presale_wallet() {
+		let json = r#"
+		{
+			"encseed":
+			"137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0d",
+			"ethaddr": "ede84640d1a1d3e06902048e67aa7db8d52c2ce1",
+			"email": "123@gmail.com",
+			"btcaddr": "1JvqEc6WLhg6GnyrLBe2ztPAU28KRfuseH"
+		} "#;
+
+		let expected = PresaleWallet {
+			encseed: Encseed("137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dedb3bc0a9ac6c79b9c426c5878ca2c9d06ff42a23cb648312fc32ba83649de0928e066137103c28caeebbcea5d7f95edb97a289ded151b72159137cb7b2671f394f54cff8c121589dcb373e267225547b3c71cbdb54f6e48ec85cd549f96cf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0dcf0d".from_hex().unwrap()),
 			address: H160::from_str("ede84640d1a1d3e06902048e67aa7db8d52c2ce1").unwrap(),
 		};
 

ethstore/src/presale.rs

@@ -10,7 +10,7 @@ use {crypto, Error};
 
 pub struct PresaleWallet {
 	iv: [u8; 16],
-	ciphertext: [u8; 80],
+	ciphertext: Vec<u8>,
 	address: Address,
 }
 
@@ -19,8 +19,8 @@ impl From<json::PresaleWallet> for PresaleWallet {
 		let mut iv = [0u8; 16];
 		iv.copy_from_slice(&wallet.encseed[..16]);
 
-		let mut ciphertext = [0u8; 80];
+		let mut ciphertext = vec![];
-		ciphertext.copy_from_slice(&wallet.encseed[16..]);
+		ciphertext.extend_from_slice(&wallet.encseed[16..]);
 
 		PresaleWallet {
 			iv: iv,
@@ -42,10 +42,11 @@ impl PresaleWallet {
 		let mut derived_key = vec![0u8; 16];
 		pbkdf2(&mut h_mac, password.as_bytes(), 2000, &mut derived_key);
 
-		let mut key = [0u8; 64];
+		let mut key = vec![0; self.ciphertext.len()];
-		try!(crypto::aes::decrypt_cbc(&derived_key, &self.iv, &self.ciphertext, &mut key).map_err(|_| Error::InvalidPassword));
+		let len = try!(crypto::aes::decrypt_cbc(&derived_key, &self.iv, &self.ciphertext, &mut key).map_err(|_| Error::InvalidPassword));
+		let unpadded = &key[..len];
 
-		let secret = Secret::from(key.keccak256());
+		let secret = Secret::from(unpadded.keccak256());
 		if let Ok(kp) = KeyPair::from_secret(secret) {
 			if kp.address() == self.address {
 				return Ok(kp)

ethstore/src/secret_store.rs

@@ -21,7 +21,7 @@ use json::UUID;
 pub trait SecretStore: Send + Sync {
 	fn insert_account(&self, secret: Secret, password: &str) -> Result<Address, Error>;
 
-	fn accounts(&self) -> Vec<Address>;
+	fn accounts(&self) -> Result<Vec<Address>, Error>;
 
 	fn change_password(&self, account: &Address, old_password: &str, new_password: &str) -> Result<(), Error>;
 

ethstore/tests/api.rs

@@ -46,11 +46,11 @@ fn random_secret() -> Secret {
 fn secret_store_create_account() {
 	let dir = TransientDir::create().unwrap();
 	let store = EthStore::open(Box::new(dir)).unwrap();
-	assert_eq!(store.accounts().len(), 0);
+	assert_eq!(store.accounts().unwrap().len(), 0);
 	assert!(store.insert_account(random_secret(), "").is_ok());
-	assert_eq!(store.accounts().len(), 1);
+	assert_eq!(store.accounts().unwrap().len(), 1);
 	assert!(store.insert_account(random_secret(), "").is_ok());
-	assert_eq!(store.accounts().len(), 2);
+	assert_eq!(store.accounts().unwrap().len(), 2);
 }
 
 #[test]
@@ -58,7 +58,7 @@ fn secret_store_sign() {
 	let dir = TransientDir::create().unwrap();
 	let store = EthStore::open(Box::new(dir)).unwrap();
 	assert!(store.insert_account(random_secret(), "").is_ok());
-	let accounts = store.accounts();
+	let accounts = store.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	assert!(store.sign(&accounts[0], "", &Default::default()).is_ok());
 	assert!(store.sign(&accounts[0], "1", &Default::default()).is_err());
@@ -69,7 +69,7 @@ fn secret_store_change_password() {
 	let dir = TransientDir::create().unwrap();
 	let store = EthStore::open(Box::new(dir)).unwrap();
 	assert!(store.insert_account(random_secret(), "").is_ok());
-	let accounts = store.accounts();
+	let accounts = store.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	assert!(store.sign(&accounts[0], "", &Default::default()).is_ok());
 	assert!(store.change_password(&accounts[0], "", "1").is_ok());
@@ -82,10 +82,10 @@ fn secret_store_remove_account() {
 	let dir = TransientDir::create().unwrap();
 	let store = EthStore::open(Box::new(dir)).unwrap();
 	assert!(store.insert_account(random_secret(), "").is_ok());
-	let accounts = store.accounts();
+	let accounts = store.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	assert!(store.remove_account(&accounts[0], "").is_ok());
-	assert_eq!(store.accounts().len(), 0);
+	assert_eq!(store.accounts().unwrap().len(), 0);
 	assert!(store.remove_account(&accounts[0], "").is_err());
 }
 
@@ -107,7 +107,7 @@ fn pat_path() -> &'static str {
 fn secret_store_laod_geth_files() {
 	let dir = DiskDirectory::at(test_path());
 	let store = EthStore::open(Box::new(dir)).unwrap();
-	assert_eq!(store.accounts(), vec![
+	assert_eq!(store.accounts().unwrap(), vec![
 		Address::from_str("3f49624084b67849c7b4e805c5988c21a430f9d9").unwrap(),
 		Address::from_str("5ba4dcf897e97c2bdf8315b9ef26c13c085988cf").unwrap(),
 		Address::from_str("63121b431a52f8043c16fcf0d1df9cb7b5f66649").unwrap(),
@@ -118,7 +118,7 @@ fn secret_store_laod_geth_files() {
 fn secret_store_load_pat_files() {
 	let dir = DiskDirectory::at(pat_path());
 	let store = EthStore::open(Box::new(dir)).unwrap();
-	assert_eq!(store.accounts(), vec![
+	assert_eq!(store.accounts().unwrap(), vec![
 		Address::from_str("3f49624084b67849c7b4e805c5988c21a430f9d9").unwrap(),
 		Address::from_str("5ba4dcf897e97c2bdf8315b9ef26c13c085988cf").unwrap(),
 	]);

evmbin/Cargo.lock

@@ -47,6 +47,19 @@ dependencies = [
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bit-set"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-vec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bitflags"
 version = "0.3.3"
@@ -168,6 +181,7 @@ dependencies = [
 name = "ethcore"
 version = "1.3.0"
 dependencies = [
+ "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bloomchain 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -253,7 +267,7 @@ dependencies = [
  "nix 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "rocksdb 0.4.5",
+ "rocksdb 0.4.5 (git+https://github.com/ethcore/rust-rocksdb)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -738,14 +752,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "rocksdb"
 version = "0.4.5"
+source = "git+https://github.com/ethcore/rust-rocksdb#eadce7f74cfe92b99ce63a77af425b47857239b8"
 dependencies = [
  "libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "rocksdb-sys 0.3.0",
+ "rocksdb-sys 0.3.0 (git+https://github.com/ethcore/rust-rocksdb)",
 ]
 
 [[package]]
 name = "rocksdb-sys"
 version = "0.3.0"
+source = "git+https://github.com/ethcore/rust-rocksdb#eadce7f74cfe92b99ce63a77af425b47857239b8"
 dependencies = [
  "gcc 0.3.28 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",

evmbin/src/ext.rs

@@ -19,7 +19,7 @@
 use std::collections::HashMap;
 use util::{U256, H256, Address, Bytes, FixedHash};
 use ethcore::client::EnvInfo;
-use ethcore::evm::{self, Ext, ContractCreateResult, MessageCallResult, Schedule};
+use ethcore::evm::{self, Ext, ContractCreateResult, MessageCallResult, Schedule, CallType};
 
 pub struct FakeExt {
 	schedule: Schedule,
@@ -67,7 +67,8 @@ impl Ext for FakeExt {
 			_value: Option<U256>,
 			_data: &[u8],
 			_code_address: &Address,
-			_output: &mut [u8]) -> MessageCallResult {
+			_output: &mut [u8],
+			_call_type: CallType) -> MessageCallResult {
 		unimplemented!();
 	}
 

ipc/codegen/src/lib.rs

@@ -95,3 +95,58 @@ pub fn register(reg: &mut rustc_plugin::Registry) {
 
 	reg.register_attribute("ipc".to_owned(), AttributeType::Normal);
 }
+
+#[derive(Debug)]
+pub enum Error { InvalidFileName, ExpandFailure }
+
+pub fn derive_ipc(src_path: &str) -> Result<(), Error> {
+	use std::env;
+	use std::path::{Path, PathBuf};
+
+	let out_dir = env::var_os("OUT_DIR").unwrap();
+	let file_name = try!(PathBuf::from(src_path).file_name().ok_or(Error::InvalidFileName).map(|val| val.to_str().unwrap().to_owned()));
+
+	let mut intermediate_file_name = file_name.clone();
+	intermediate_file_name.push_str(".rpc.in");
+
+	let intermediate_path = Path::new(&out_dir).join(&intermediate_file_name);
+	let final_path = Path::new(&out_dir).join(&file_name);
+
+	{
+		let mut registry = syntex::Registry::new();
+		register(&mut registry);
+		if let Err(_) = registry.expand("", &Path::new(src_path), &intermediate_path) {
+			// will be reported by compiler
+			return Err(Error::ExpandFailure)
+		}
+	}
+
+	{
+		let mut registry = syntex::Registry::new();
+		register(&mut registry);
+		if let Err(_) = registry.expand("", &intermediate_path, &final_path) {
+			// will be reported by compiler
+			return Err(Error::ExpandFailure)
+		}
+	}
+
+	Ok(())
+}
+
+pub fn derive_binary(src_path: &str) -> Result<(), Error> {
+	use std::env;
+	use std::path::{Path, PathBuf};
+
+	let out_dir = env::var_os("OUT_DIR").unwrap();
+	let file_name = try!(PathBuf::from(src_path).file_name().ok_or(Error::InvalidFileName).map(|val| val.to_str().unwrap().to_owned()));
+	let final_path = Path::new(&out_dir).join(&file_name);
+
+	let mut registry = syntex::Registry::new();
+	register(&mut registry);
+	if let Err(_) = registry.expand("", &Path::new(src_path), &final_path) {
+		// will be reported by compiler
+		return Err(Error::ExpandFailure)
+	}
+
+	Ok(())
+}

ipc/hypervisor/Cargo.toml

@@ -15,5 +15,4 @@ semver = "0.2"
 log = "0.3"
 
 [build-dependencies]
-syntex = "*"
 ethcore-ipc-codegen = { path = "../codegen" }

ipc/hypervisor/build.rs

@@ -14,30 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-extern crate syntex;
+extern crate ethcore_ipc_codegen;
-extern crate ethcore_ipc_codegen as codegen;
-
-use std::env;
-use std::path::Path;
 
 fn main() {
-	let out_dir = env::var_os("OUT_DIR").unwrap();
+	ethcore_ipc_codegen::derive_ipc("src/service.rs.in").unwrap();
-
-	// ipc pass
-	{
-		let src = Path::new("src/service.rs.in");
-		let dst = Path::new(&out_dir).join("hypervisor_service_ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
-
-	// serialization pass
-	{
-		let src = Path::new(&out_dir).join("hypervisor_service_ipc.rs");
-		let dst = Path::new(&out_dir).join("hypervisor_service_cg.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
 }

ipc/hypervisor/src/service.rs

@@ -17,4 +17,4 @@
 //! Parity interprocess hypervisor IPC service
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
 
-include!(concat!(env!("OUT_DIR"), "/hypervisor_service_cg.rs"));
+include!(concat!(env!("OUT_DIR"), "/service.rs.in"));

ipc/nano/Cargo.toml

@@ -7,7 +7,6 @@ license = "GPL-3.0"
 [features]
 
 [dependencies]
-jsonrpc-core = "2.0"
 ethcore-ipc = { path = "../rpc" }
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 log = "0.3"

ipc/nano/src/lib.rs

@@ -19,14 +19,11 @@
 extern crate ethcore_ipc as ipc;
 extern crate nanomsg;
 #[macro_use] extern crate log;
-extern crate jsonrpc_core;
-use jsonrpc_core::IoHandler;
 
 pub use ipc::{WithSocket, IpcInterface, IpcConfig};
 pub use nanomsg::Socket as NanoSocket;
 
 use std::sync::*;
-use std::sync::atomic::*;
 use nanomsg::{Socket, Protocol, Error, Endpoint, PollRequest, PollFd, PollInOut};
 use std::ops::Deref;
 
@@ -218,149 +215,14 @@ impl<S: ?Sized> Worker<S> where S: IpcInterface {
 	}
 }
 
-/// Error in handling JSON RPC request
-pub enum IoHandlerError {
-	BadRequest,
-	HandlerError,
-}
-
-/// Worker to handle JSON RPC requests
-pub struct IoHandlerWorker {
-	handler: Arc<IoHandler>,
-	socket: Socket,
-	_endpoint: Endpoint,
-	poll: Vec<PollFd>,
-	buf: Vec<u8>,
-}
-
-/// IPC server for json-rpc handler (single thread)
-pub struct IoHandlerServer {
-	is_stopping: Arc<AtomicBool>,
-	is_stopped: Arc<AtomicBool>,
-	handler: Arc<IoHandler>,
-	socket_addr: String,
-}
-
-impl IoHandlerServer {
-	/// New IPC server for JSON RPC `handler` and ipc socket address `socket_addr`
-	pub fn new(handler: &Arc<IoHandler>, socket_addr: &str) -> IoHandlerServer {
-		IoHandlerServer {
-			handler: handler.clone(),
-			is_stopping: Arc::new(AtomicBool::new(false)),
-			is_stopped: Arc::new(AtomicBool::new(true)),
-			socket_addr: socket_addr.to_owned(),
-		}
-	}
-
-	/// IPC Server starts (non-blocking, in seprate thread)
-	pub fn start(&self) -> Result<(), SocketError> {
-		let mut worker = try!(IoHandlerWorker::new(&self.handler, &self.socket_addr));
-		self.is_stopping.store(false, Ordering::Relaxed);
-		let worker_is_stopping = self.is_stopping.clone();
-		let worker_is_stopped = self.is_stopped.clone();
-
-		::std::thread::spawn(move || {
-			worker_is_stopped.store(false, Ordering::Relaxed);
-			while !worker_is_stopping.load(Ordering::Relaxed) {
-				worker.poll()
-			}
-			worker_is_stopped.store(true, Ordering::Relaxed);
-		});
-
-		Ok(())
-	}
-
-	/// IPC server stop (func will wait until effective stop)
-	pub fn stop(&self) {
-		self.is_stopping.store(true, Ordering::Relaxed);
-		while !self.is_stopped.load(Ordering::Relaxed) {
-			std::thread::sleep(std::time::Duration::from_millis(50));
-		}
-	}
-}
-
-impl Drop for IoHandlerServer {
-	fn drop(&mut self) {
-		self.stop()
-	}
-}
-
-impl IoHandlerWorker {
-	pub fn new(handler: &Arc<IoHandler>, socket_addr: &str) -> Result<IoHandlerWorker, SocketError> {
-		let mut socket = try!(Socket::new(Protocol::Rep).map_err(|e| {
-			warn!(target: "ipc", "Failed to create ipc socket: {:?}", e);
-			SocketError::RequestLink
-		}));
-
-		let endpoint = try!(socket.bind(socket_addr).map_err(|e| {
-			warn!(target: "ipc", "Failed to bind socket to address '{}': {:?}", socket_addr, e);
-			SocketError::RequestLink
-		}));
-
-		let poll = vec![socket.new_pollfd(PollInOut::In)];
-
-		Ok(IoHandlerWorker {
-			handler: handler.clone(),
-			socket: socket,
-			_endpoint: endpoint,
-			poll: poll,
-			buf: Vec::with_capacity(1024),
-		})
-	}
-
-	pub fn poll(&mut self) {
-		let mut request = PollRequest::new(&mut self.poll[..]);
- 		let _result_guard = Socket::poll(&mut request, POLL_TIMEOUT);
-		let fd = request.get_fds()[0]; 	// guaranteed to exist and be the only one
-										// because contains only immutable socket field as a member
-		if !fd.can_read() {
-			return;
-		}
-
-		unsafe { self.buf.set_len(0); }
-		match self.socket.nb_read_to_end(&mut self.buf) {
-			Ok(0) => {
-				warn!(target: "ipc", "RPC empty message received");
-				return;
-			},
-			Ok(_) => {
-				let rpc_msg = match String::from_utf8(self.buf.clone()) {
-					Ok(val) => val,
-					Err(e) => {
-						warn!(target: "ipc", "RPC decoding error (utf-8): {:?}", e);
-						return;
-					}
-				};
-				let response: Option<String> = self.handler.handle_request(&rpc_msg);
-				if let Some(response_str) = response {
-					let response_bytes = response_str.into_bytes();
-					if let Err(e) = self.socket.nb_write(&response_bytes) {
-						warn!(target: "ipc", "Failed to write response: {:?}", e);
-					}
-				}
-			},
-			Err(Error::TryAgain) => {
-				// no data
-			},
-			Err(x) => {
-				warn!(target: "ipc", "Error polling connections {:?}", x);
-				panic!("IPC RPC fatal error");
-			},
-		}
-	}
-
-}
-
 #[cfg(test)]
 mod service_tests {
 
-	use super::{Worker, IoHandlerServer};
+	use super::Worker;
 	use ipc::*;
 	use std::io::{Read, Write};
 	use std::sync::{Arc, RwLock};
 	use nanomsg::{Socket, Protocol, Endpoint};
-	use jsonrpc_core;
-	use jsonrpc_core::{IoHandler, Value, Params, MethodCommand};
 
 	struct TestInvoke {
 		method_num: u16,
@@ -377,7 +239,7 @@ mod service_tests {
 		}
 	}
 
-	impl IpcInterface<DummyService> for DummyService {
+	impl IpcInterface for DummyService {
 		fn dispatch<R>(&self, _r: &mut R) -> Vec<u8> where R: Read {
 			vec![]
 		}
@@ -400,15 +262,6 @@ mod service_tests {
 		(socket, endpoint)
 	}
 
-	fn dummy_request(addr: &str, buf: &[u8]) -> Vec<u8> {
-		let mut socket = Socket::new(Protocol::Req).unwrap();
-		let _endpoint = socket.connect(addr).unwrap();
-		socket.write(buf).unwrap();
-		let mut buf = Vec::new();
-		socket.read_to_end(&mut buf).unwrap();
-		buf
-	}
-
 	#[test]
 	fn can_create_worker() {
 		let worker = Worker::<DummyService>::new(&Arc::new(DummyService::new()));
@@ -462,29 +315,4 @@ mod service_tests {
 		assert_eq!(0, worker.service.methods_stack.read().unwrap()[0].method_num);
 		assert_eq!(vec![0u8; 1024*1024-2], worker.service.methods_stack.read().unwrap()[0].params);
 	}
-
-	#[test]
-	fn test_jsonrpc_handler() {
-		let url = "ipc:///tmp/parity-test50.ipc";
-
-		struct SayHello;
-		impl MethodCommand for SayHello {
-			fn execute(&self, _params: Params) -> Result<Value, jsonrpc_core::Error> {
-				Ok(Value::String("hello".to_string()))
-			}
-		}
-
-		let io = Arc::new(IoHandler::new());
-		io.add_method("say_hello", SayHello);
-
-		let request = r#"{"jsonrpc": "2.0", "method": "say_hello", "params": [42, 23], "id": 1}"#;
-		let response = r#"{"jsonrpc":"2.0","result":"hello","id":1}"#;
-
-		let server = IoHandlerServer::new(&io, url);
-		server.start().unwrap();
-
-		assert_eq!(String::from_utf8(dummy_request(url, request.as_bytes())).unwrap(), response.to_string());
-
-		server.stop();
-	}
 }

ipc/tests/Cargo.toml

@@ -10,10 +10,11 @@ path = "run.rs"
 [dependencies]
 ethcore-ipc = { path = "../rpc" }
 ethcore-devtools = { path = "../../devtools" }
-semver = "0.2.0"
+semver = "0.2"
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 ethcore-ipc-nano = { path = "../nano" }
 ethcore-util = { path = "../../util" }
+log = "0.3"
 
 [build-dependencies]
 syntex = "0.33"

ipc/tests/binary.rs

@@ -16,4 +16,4 @@
 
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
 
-include!(concat!(env!("OUT_DIR"), "/binary.rs"));
+include!(concat!(env!("OUT_DIR"), "/binary.rs.in"));

ipc/tests/binary.rs.in

@@ -56,3 +56,11 @@ fn opt_two_vec() {
 	let serialized = ::ipc::binary::serialize(&example).unwrap();
 	assert_eq!(serialized, vec![0u8; 16]);
 }
+
+#[test]
+fn enum_with_struct() {
+	let example = EnumWithStruct::Right { how_much: 15 };
+	let serialized = ::ipc::binary::serialize(&example).unwrap();
+	let deserialized = ::ipc::binary::deserialize::<EnumWithStruct>(&serialized).unwrap();
+	assert_eq!(example, deserialized);
+}

ipc/tests/build.rs

@@ -14,76 +14,11 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-extern crate syntex;
 extern crate ethcore_ipc_codegen as codegen;
 
-use std::env;
-use std::path::Path;
-use std::process::exit;
-
 pub fn main() {
-	let out_dir = env::var_os("OUT_DIR").unwrap();
+	codegen::derive_ipc("nested.rs.in").unwrap();
-
+	codegen::derive_ipc("service.rs.in").unwrap();
-	// rpc pass
+	codegen::derive_ipc("with_attrs.rs.in").unwrap();
-	if {
+	codegen::derive_binary("binary.rs.in").unwrap();
-		let src = Path::new("nested.rs.in");
-		let dst = Path::new(&out_dir).join("nested_ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).is_ok()
-	}
-	// serialization pass
-	{
-		let src = Path::new(&out_dir).join("nested_ipc.rs");
-		let dst = Path::new(&out_dir).join("nested_cg.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
-
-	// rpc pass
-	if {
-		let src = Path::new("service.rs.in");
-		let dst = Path::new(&out_dir).join("service_ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).is_ok()
-	}
-	// serialization pass
-	{
-		let src = Path::new(&out_dir).join("service_ipc.rs");
-		let dst = Path::new(&out_dir).join("service_cg.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
-
-	// rpc pass
-	if {
-		let src = Path::new("with_attrs.rs.in");
-		let dst = Path::new(&out_dir).join("with_attrs_ipc.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).is_ok()
-	}
-	// serialization pass
-	{
-		let src = Path::new(&out_dir).join("with_attrs_ipc.rs");
-		let dst = Path::new(&out_dir).join("with_attrs_cg.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		registry.expand("", &src, &dst).unwrap();
-	}
-
-	// rpc pass
-	{
-		let src = Path::new("binary.rs.in");
-		let dst = Path::new(&out_dir).join("binary.rs");
-		let mut registry = syntex::Registry::new();
-		codegen::register(&mut registry);
-		if let Err(err_msg) = registry.expand("", &src, &dst) {
-			println!("error: {}", err_msg);
-			exit(1);
-		}
-	}
 }

ipc/tests/examples.rs

@@ -42,38 +42,6 @@ mod tests {
 		assert_eq!(10, *service.commits.read().unwrap());
 	}
 
-
-	#[test]
-	fn call_service_handshake() {
-		let mut socket = TestSocket::new_ready(vec![0, 0,
-			// part count = 3
-			3, 0, 0, 0, 0, 0, 0, 0,
-			// part sizes
-			5, 0, 0, 0, 0, 0, 0, 0,
-			5, 0, 0, 0, 0, 0, 0, 0,
-			64, 0, 0, 0, 0, 0, 0, 0,
-			// total payload length
-			70, 0, 0, 0, 0, 0, 0, 0,
-			// protocol version
-			b'1', b'.', b'0', b'.', b'0',
-			// api version
-			b'1', b'.', b'0', b'.', b'0',
-			// reserved
-
-				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			]);
-
-		let service = Arc::new(Service::new());
-		let result = service.dispatch(&mut socket);
-
-		// single `true`
-		assert_eq!(vec![1], result);
-	}
-
-
 	#[test]
 	fn call_service_client() {
 		let mut socket = TestSocket::new();
@@ -110,9 +78,9 @@ mod tests {
 
 	#[test]
 	fn query_default_version() {
-		let ver = Arc::<Service>::protocol_version();
+		let ver = Service::protocol_version();
 		assert_eq!(ver, Version::parse("1.0.0").unwrap());
-		let ver = Arc::<Service>::api_version();
+		let ver = Service::api_version();
 		assert_eq!(ver, Version::parse("1.0.0").unwrap());
 	}
 
@@ -153,16 +121,11 @@ mod tests {
 	#[test]
 	fn can_invoke_generic_service() {
 		let mut socket = TestSocket::new();
-		socket.read_buffer = vec![
+		socket.read_buffer = vec![0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
-			1, 0, 0, 0, 0, 0, 0, 0,
-			1, 0, 0, 0, 0, 0, 0, 0,
-			1, 0, 0, 0, 0, 0, 0, 0,
-			0,
-		];
 		let db_client = DBClient::<u64, _>::init(socket);
-
+		let result = db_client.write(vec![1u8; 1]);
-		let result = db_client.write(vec![0u8; 100]);
+		assert_eq!(vec![0, 16, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1],
-
+			db_client.socket().write().unwrap().write_buffer.clone());
 		assert!(result.is_ok());
 	}
 

ipc/tests/nested.rs

@@ -15,4 +15,4 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
-include!(concat!(env!("OUT_DIR"), "/nested_cg.rs"));
+include!(concat!(env!("OUT_DIR"), "/nested.rs.in"));

ipc/tests/nested.rs.in

@@ -15,9 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::sync::RwLock;
-use std::ops::*;
 use ipc::IpcConfig;
-use ipc::BinaryConvertable;
 use std::mem;
 use ipc::binary::BinaryConvertError;
 use std::collections::VecDeque;
@@ -33,7 +31,7 @@ pub trait DBWriter {
 	fn write_slice(&self, data: &[u8]) -> Result<(), DBError>;
 }
 
-impl IpcConfig<DBWriter> for ::std::sync::Arc<DBWriter> {}
+impl IpcConfig for DBWriter {}
 
 #[derive(Binary)]
 pub enum DBError { Write, Read }
@@ -58,4 +56,4 @@ trait DBNotify {
 	fn notify(&self, a: u64, b: u64) -> bool;
 }
 
-impl IpcConfig<DBNotify> for ::std::sync::Arc<DBNotify> { }
+impl IpcConfig for DBNotify { }

ipc/tests/run.rs

@@ -22,6 +22,7 @@ extern crate semver;
 extern crate nanomsg;
 extern crate ethcore_ipc_nano as nanoipc;
 extern crate ethcore_util as util;
+#[macro_use] extern crate log;
 
 pub mod service;
 mod examples;

ipc/tests/service.rs

@@ -15,4 +15,4 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
-include!(concat!(env!("OUT_DIR"), "/service_cg.rs"));
+include!(concat!(env!("OUT_DIR"), "/service.rs.in"));

ipc/tests/service.rs.in

@@ -15,7 +15,6 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::sync::RwLock;
-use std::ops::*;
 use ipc::IpcConfig;
 use std::mem;
 use ipc::binary::BinaryConvertError;
@@ -70,4 +69,4 @@ impl Service {
 	}
 }
 
-impl ::ipc::IpcConfig<Service> for ::std::sync::Arc<Service> {}
+impl ::ipc::IpcConfig for Service {}

ipc/tests/with_attrs.rs

@@ -15,4 +15,4 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 #![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
-include!(concat!(env!("OUT_DIR"), "/with_attrs_cg.rs"));
+include!(concat!(env!("OUT_DIR"), "/with_attrs.rs.in"));

ipc/tests/with_attrs.rs.in

@@ -14,8 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::sync::RwLock;
-use std::ops::*;
 use ipc::IpcConfig;
 use std::mem;
 use ipc::binary::BinaryConvertError;
@@ -31,4 +29,4 @@ impl BadlyNamedService {
 	}
 }
 
-impl ::ipc::IpcConfig<BadlyNamedService> for ::std::sync::Arc<BadlyNamedService> {}
+impl IpcConfig for BadlyNamedService {}

json/src/spec/account.rs

@@ -17,6 +17,7 @@
 //! Spec account deserialization.
 
 use uint::Uint;
+use bytes::Bytes;
 use spec::builtin::Builtin;
 
 /// Spec account.
@@ -28,6 +29,8 @@ pub struct Account {
 	pub balance: Option<Uint>,
 	/// Nonce.
 	pub nonce: Option<Uint>,
+	/// Code.
+	pub code: Option<Bytes>
 }
 
 impl Account {
@@ -41,14 +44,22 @@ impl Account {
 mod tests {
 	use serde_json;
 	use spec::account::Account;
+	use util::numbers::U256;
+	use uint::Uint;
+	use bytes::Bytes;
 
 	#[test]
 	fn account_deserialization() {
 		let s = r#"{
 			"balance": "1",
-			"builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } }
+			"nonce": "0",
+			"builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } },
+			"code": "1234"
 		}"#;
-		let _deserialized: Account = serde_json::from_str(s).unwrap();
+		let deserialized: Account = serde_json::from_str(s).unwrap();
-		// TODO: validate all fields
+		assert_eq!(deserialized.balance.unwrap(), Uint(U256::from(1)));
+		assert_eq!(deserialized.nonce.unwrap(), Uint(U256::from(0)));
+		assert_eq!(deserialized.code.unwrap(), Bytes::new(vec![0x12, 0x34]));
+		assert!(deserialized.builtin.is_some()); // Further tested in builtin.rs
 	}
 }

json/src/spec/basic_authority.rs

@@ -14,12 +14,12 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-//! Ethash params deserialization.
+//! Authority params deserialization.
 
 use uint::Uint;
 use hash::Address;
 
-/// Ethash params deserialization.
+/// Authority params deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct BasicAuthorityParams {
 	/// Gas limit divisor.
@@ -32,7 +32,7 @@ pub struct BasicAuthorityParams {
 	pub authorities: Vec<Address>,
 }
 
-/// Ethash engine deserialization.
+/// Authority engine deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct BasicAuthority {
 	/// Ethash params.

json/src/spec/builtin.rs

@@ -45,7 +45,7 @@ pub struct Builtin {
 #[cfg(test)]
 mod tests {
 	use serde_json;
-	use spec::builtin::Builtin;
+	use spec::builtin::{Builtin, Pricing, Linear};
 
 	#[test]
 	fn builtin_deserialization() {
@@ -53,7 +53,8 @@ mod tests {
 			"name": "ecrecover",
 			"pricing": { "linear": { "base": 3000, "word": 0 } }
 		}"#;
-		let _deserialized: Builtin = serde_json::from_str(s).unwrap();
+		let deserialized: Builtin = serde_json::from_str(s).unwrap();
-		// TODO: validate all fields
+		assert_eq!(deserialized.name, "ecrecover");
+		assert_eq!(deserialized.pricing, Pricing::Linear(Linear { base: 3000, word: 0 }));
 	}
 }

json/src/spec/engine.rs

@@ -24,6 +24,8 @@ use spec::BasicAuthority;
 pub enum Engine {
 	/// Null engine.
 	Null,
+	/// Instantly sealing engine.
+	InstantSeal,
 	/// Ethash engine.
 	Ethash(Ethash),
 	/// BasicAuthority engine.
@@ -44,6 +46,14 @@ mod tests {
 		let deserialized: Engine = serde_json::from_str(s).unwrap();
 		assert_eq!(Engine::Null, deserialized);
 
+		let s = r#"{
+			"InstantSeal": null
+		}"#;
+
+		let deserialized: Engine = serde_json::from_str(s).unwrap();
+		assert_eq!(Engine::InstantSeal, deserialized);
+
+
 		let s = r#"{
 			"Ethash": {
 				"params": {

logger/src/lib.rs

@@ -26,7 +26,7 @@ extern crate time;
 #[macro_use]
 extern crate lazy_static;
 
-use std::env;
+use std::{env, thread};
 use std::sync::Arc;
 use std::fs::File;
 use std::io::Write;
@@ -91,7 +91,8 @@ pub fn setup_log(config: &Config) -> Result<Arc<RotatingLogger>, String> {
 		let with_color = if max_log_level() <= LogLevelFilter::Info {
 			format!("{}{}", Colour::Black.bold().paint(timestamp), record.args())
 		} else {
-			format!("{}{}:{}: {}", Colour::Black.bold().paint(timestamp), record.level(), record.target(), record.args())
+			let name = thread::current().name().map_or_else(Default::default, |x| format!("{}", Colour::Blue.bold().paint(x)));
+			format!("{}{} {} {}  {}", Colour::Black.bold().paint(timestamp), name, record.level(), record.target(), record.args())
 		};
 
 		let removed_color = kill_color(with_color.as_ref());

parity/cache.rs

@@ -20,6 +20,7 @@ const MIN_BC_CACHE_MB: u32 = 4;
 const MIN_DB_CACHE_MB: u32 = 2;
 const MIN_BLOCK_QUEUE_SIZE_LIMIT_MB: u32 = 16;
 const DEFAULT_BLOCK_QUEUE_SIZE_LIMIT_MB: u32 = 50;
+const DEFAULT_TRACE_CACHE_SIZE: u32 = 20;
 
 /// Configuration for application cache sizes.
 /// All	values are represented in MB.
@@ -34,6 +35,8 @@ pub struct CacheConfig {
 	blockchain: u32,
 	/// Size of transaction queue cache.
 	queue: u32,
+	/// Size of traces cache.
+	traces: u32,
 }
 
 impl Default for CacheConfig {
@@ -49,6 +52,7 @@ impl CacheConfig {
 			db: total * 7 / 8,
 			blockchain: total / 8,
 			queue: DEFAULT_BLOCK_QUEUE_SIZE_LIMIT_MB,
+			traces: DEFAULT_TRACE_CACHE_SIZE,
 		}
 	}
 
@@ -58,6 +62,7 @@ impl CacheConfig {
 			db: db,
 			blockchain: blockchain,
 			queue: queue,
+			traces: DEFAULT_TRACE_CACHE_SIZE,
 		}
 	}
 
@@ -80,6 +85,11 @@ impl CacheConfig {
 	pub fn blockchain(&self) -> u32 {
 		max(self.blockchain, MIN_BC_CACHE_MB)
 	}
+
+	/// Size of the traces cache.
+	pub fn traces(&self) -> u32 {
+		self.traces
+	}
 }
 
 #[cfg(test)]

parity/cli.rs

@@ -74,6 +74,9 @@ Account Options:
                            [default: 8180].
   --signer-path PATH       Specify directory where Signer UIs tokens should
                            be stored. [default: $HOME/.parity/signer]
+  --signer-no-validation   Disable Origin and Host headers validation for
+                           Trusted Signer. WARNING: INSECURE. Used only for
+                           development.
 
 Networking Options:
   --no-network             Disable p2p networking.
@@ -337,6 +340,7 @@ pub struct Args {
 	pub flag_no_signer: bool,
 	pub flag_signer_port: u16,
 	pub flag_signer_path: String,
+	pub flag_signer_no_validation: bool,
 	pub flag_force_sealing: bool,
 	pub flag_reseal_on_txs: String,
 	pub flag_reseal_min_period: u64,

parity/configuration.rs

@@ -303,6 +303,7 @@ impl Configuration {
 			enabled: self.signer_enabled(),
 			port: self.args.flag_signer_port,
 			signer_path: self.directories().signer,
+			skip_origin_validation: self.args.flag_signer_no_validation,
 		}
 	}
 
@@ -789,6 +790,19 @@ mod tests {
 		assert_eq!(conf0.signer_enabled(), false);
 	}
 
+	#[test]
+	fn should_parse_signer_allow_all_flag() {
+		// given
+
+		// when
+		let conf0 = parse(&["parity", "--signer-no-validation"]);
+		let conf1 = parse(&["parity"]);
+
+		// then
+		assert_eq!(conf0.args.flag_signer_no_validation, true);
+		assert_eq!(conf1.args.flag_signer_no_validation, false);
+	}
+
 	#[test]
 	fn should_not_bail_on_empty_line_in_reserved_peers() {
 		let temp = RandomTempPath::new();

parity/helpers.rs

@@ -102,7 +102,7 @@ pub fn to_address(s: Option<String>) -> Result<Address, String> {
 
 pub fn to_addresses(s: &Option<String>) -> Result<Vec<Address>, String> {
 	match *s {
-		Some(ref adds) if adds.is_empty() => adds.split(',')
+		Some(ref adds) if !adds.is_empty() => adds.split(',')
 			.map(|a| clean_0x(a).parse().map_err(|_| format!("Invalid address: {:?}", a)))
 			.collect(),
 		_ => Ok(Vec::new()),
@@ -212,6 +212,10 @@ pub fn to_client_config(
 	client_config.db_cache_size = Some(cache_config.db_state_cache_size() as usize);
 	// db queue cache size, in bytes
 	client_config.queue.max_mem_use = cache_config.queue() as usize * mb;
+	// in bytes
+	client_config.tracing.max_cache_size = cache_config.traces() as usize * mb;
+	// in bytes
+	client_config.tracing.pref_cache_size = cache_config.traces() as usize * 3 / 4 * mb;
 
 	client_config.mode = mode;
 	client_config.tracing.enabled = tracing;
@@ -295,7 +299,7 @@ mod tests {
 	use util::{U256};
 	use ethcore::client::{Mode, BlockID};
 	use ethcore::miner::PendingSet;
-	use super::{to_duration, to_mode, to_block_id, to_u256, to_pending_set, to_address, to_price, geth_ipc_path, to_bootnodes};
+	use super::{to_duration, to_mode, to_block_id, to_u256, to_pending_set, to_address, to_addresses, to_price, geth_ipc_path, to_bootnodes};
 
 	#[test]
 	fn test_to_duration() {
@@ -366,6 +370,18 @@ mod tests {
 		assert_eq!(to_address(None).unwrap(), Default::default());
 	}
 
+	#[test]
+	fn test_to_addresses() {
+		let addresses = to_addresses(&Some("0xD9A111feda3f362f55Ef1744347CDC8Dd9964a41,D9A111feda3f362f55Ef1744347CDC8Dd9964a42".into())).unwrap();
+		assert_eq!(
+			addresses,
+			vec![
+				"D9A111feda3f362f55Ef1744347CDC8Dd9964a41".parse().unwrap(),
+				"D9A111feda3f362f55Ef1744347CDC8Dd9964a42".parse().unwrap(),
+			]
+		);
+	}
+
 	#[test]
 	#[cfg_attr(feature = "dev", allow(float_cmp))]
 	fn test_to_price() {

parity/migration.rs

@@ -241,7 +241,7 @@ pub fn migrate(path: &Path, pruning: Algorithm, compaction_profile: CompactionPr
 		// Remove the database dir (it shouldn't exist anyway, but it might when migration was interrupted)
 		let _ = fs::remove_dir_all(db_path.clone());
 		try!(consolidate_database(legacy::blocks_database_path(path), db_path.clone(), client::DB_COL_HEADERS, Extract::Header, &compaction_profile));
-		try!(consolidate_database(legacy::blocks_database_path(path), db_path.clone(), client::DB_COL_BODIES, Extract::Header, &compaction_profile));
+		try!(consolidate_database(legacy::blocks_database_path(path), db_path.clone(), client::DB_COL_BODIES, Extract::Body, &compaction_profile));
 		try!(consolidate_database(legacy::extras_database_path(path), db_path.clone(), client::DB_COL_EXTRA, Extract::All, &compaction_profile));
 		try!(consolidate_database(legacy::state_database_path(path), db_path.clone(), client::DB_COL_STATE, Extract::All, &compaction_profile));
 		try!(consolidate_database(legacy::trace_database_path(path), db_path.clone(), client::DB_COL_TRACE, Extract::All, &compaction_profile));

parity/rpc_apis.rs

@@ -104,8 +104,8 @@ pub struct Dependencies {
 	pub external_miner: Arc<ExternalMiner>,
 	pub logger: Arc<RotatingLogger>,
 	pub settings: Arc<NetworkSettings>,
-	pub allow_pending_receipt_query: bool,
 	pub net_service: Arc<ManageNetwork>,
+	pub geth_compatibility: bool,
 }
 
 fn to_modules(apis: &[Api]) -> BTreeMap<String, String> {
@@ -163,7 +163,10 @@ pub fn setup_rpc<T: Extendable>(server: T, deps: Arc<Dependencies>, apis: ApiSet
 					&deps.secret_store,
 					&deps.miner,
 					&deps.external_miner,
-					deps.allow_pending_receipt_query
+					EthClientOptions {
+						allow_pending_receipt_query: !deps.geth_compatibility,
+						send_block_number_in_get_work: !deps.geth_compatibility,
+					}
 				);
 				server.add_delegate(client.to_delegate());
 

parity/run.rs

@@ -211,8 +211,8 @@ pub fn execute(cmd: RunCmd) -> Result<(), String> {
 		external_miner: external_miner.clone(),
 		logger: logger.clone(),
 		settings: Arc::new(cmd.net_settings.clone()),
-		allow_pending_receipt_query: !cmd.geth_compatibility,
+		net_service: manage_network.clone(),
-		net_service: manage_network.clone()
+		geth_compatibility: cmd.geth_compatibility,
 	});
 
 	let dependencies = rpc::Dependencies {
@@ -311,7 +311,7 @@ fn prepare_account_provider(dirs: &Directories, cfg: AccountsConfig) -> Result<A
 
 	for a in cfg.unlocked_accounts {
 		if passwords.iter().find(|p| account_service.unlock_account_permanently(a, (*p).clone()).is_ok()).is_none() {
-			return Err(format!("No password given to unlock account {}. Pass the password using `--password`.", a));
+			return Err(format!("No password found to unlock account {}. Make sure valid password is present in files passed using `--password`.", a));
 		}
 	}
 

parity/signer.rs

@@ -32,6 +32,7 @@ pub struct Configuration {
 	pub enabled: bool,
 	pub port: u16,
 	pub signer_path: String,
+	pub skip_origin_validation: bool,
 }
 
 impl Default for Configuration {
@@ -40,6 +41,7 @@ impl Default for Configuration {
 			enabled: true,
 			port: 8180,
 			signer_path: replace_home("$HOME/.parity/signer"),
+			skip_origin_validation: false,
 		}
 	}
 }
@@ -89,6 +91,11 @@ fn do_start(conf: Configuration, deps: Dependencies) -> Result<SignerServer, Str
 			deps.apis.signer_queue.clone(),
 			codes_path(conf.signer_path),
 		);
+		if conf.skip_origin_validation {
+			warn!("{}", Colour::Red.bold().paint("*** INSECURE *** Running Trusted Signer with no origin validation."));
+			info!("If you do not intend this, exit now.");
+		}
+		let server = server.skip_origin_validation(conf.skip_origin_validation);
 		let server = rpc_apis::setup_rpc(server, deps.apis, rpc_apis::ApiSet::SafeContext);
 		server.start(addr)
 	};

rpc/src/v1/helpers/mod.rs

@@ -21,5 +21,5 @@ mod signing_queue;
 
 pub use self::poll_manager::PollManager;
 pub use self::poll_filter::PollFilter;
-pub use self::requests::{TransactionRequest, TransactionConfirmation, CallRequest};
+pub use self::requests::{TransactionRequest, FilledTransactionRequest, ConfirmationRequest, ConfirmationPayload, CallRequest};
 pub use self::signing_queue::{ConfirmationsQueue, ConfirmationPromise, ConfirmationResult, SigningQueue, QueueEvent};

rpc/src/v1/helpers/requests.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use util::{Address, U256};
+use util::{Address, U256, Bytes, H256};
 
 /// Transaction request coming from RPC
 #[derive(Debug, Clone, Default, Eq, PartialEq, Hash)]
@@ -30,18 +30,42 @@ pub struct TransactionRequest {
 	/// Value of transaction in wei
 	pub value: Option<U256>,
 	/// Additional data sent with transaction
-	pub data: Option<Vec<u8>>,
+	pub data: Option<Bytes>,
 	/// Transaction's nonce
 	pub nonce: Option<U256>,
 }
 
-/// Transaction confirmation waiting in a queue
+/// Transaction request coming from RPC with default values filled in.
 #[derive(Debug, Clone, Default, Eq, PartialEq, Hash)]
-pub struct TransactionConfirmation {
+pub struct FilledTransactionRequest {
-	/// Id of this confirmation
+	/// Sender
-	pub id: U256,
+	pub from: Address,
-	/// TransactionRequest
+	/// Recipient
-	pub transaction: TransactionRequest,
+	pub to: Option<Address>,
+	/// Gas Price
+	pub gas_price: U256,
+	/// Gas
+	pub gas: U256,
+	/// Value of transaction in wei
+	pub value: U256,
+	/// Additional data sent with transaction
+	pub data: Bytes,
+	/// Transaction's nonce
+	pub nonce: Option<U256>,
+}
+
+impl From<FilledTransactionRequest> for TransactionRequest {
+	fn from(r: FilledTransactionRequest) -> Self {
+		TransactionRequest {
+			from: r.from,
+			to: r.to,
+			gas_price: Some(r.gas_price),
+			gas: Some(r.gas),
+			value: Some(r.value),
+			data: Some(r.data),
+			nonce: r.nonce,
+		}
+	}
 }
 
 /// Call request
@@ -62,3 +86,21 @@ pub struct CallRequest {
 	/// Nonce
 	pub nonce: Option<U256>,
 }
+
+/// Confirmation object
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub struct ConfirmationRequest {
+	/// Id of this confirmation
+	pub id: U256,
+	/// Payload to confirm
+	pub payload: ConfirmationPayload,
+}
+
+/// Payload to confirm in Trusted Signer
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub enum ConfirmationPayload {
+	/// Transaction
+	Transaction(FilledTransactionRequest),
+	/// Sign request
+	Sign(Address, H256),
+}

rpc/src/v1/helpers/signing_queue.rs

@@ -17,10 +17,10 @@
 use std::thread;
 use std::time::{Instant, Duration};
 use std::sync::{mpsc, Arc};
-use std::collections::HashMap;
+use std::collections::BTreeMap;
 use jsonrpc_core;
 use util::{Mutex, RwLock, U256};
-use v1::helpers::{TransactionRequest, TransactionConfirmation};
+use v1::helpers::{ConfirmationRequest, ConfirmationPayload};
 
 /// Result that can be returned from JSON RPC.
 pub type RpcResult = Result<jsonrpc_core::Value, jsonrpc_core::Error>;
@@ -54,41 +54,41 @@ pub type QueueEventReceiver = mpsc::Receiver<QueueEvent>;
 pub trait SigningQueue: Send + Sync {
 	/// Add new request to the queue.
 	/// Returns a `ConfirmationPromise` that can be used to await for resolution of given request.
-	fn add_request(&self, transaction: TransactionRequest) -> ConfirmationPromise;
+	fn add_request(&self, request: ConfirmationPayload) -> ConfirmationPromise;
 
 	/// Removes a request from the queue.
-	/// Notifies possible token holders that transaction was rejected.
+	/// Notifies possible token holders that request was rejected.
-	fn request_rejected(&self, id: U256) -> Option<TransactionConfirmation>;
+	fn request_rejected(&self, id: U256) -> Option<ConfirmationRequest>;
 
 	/// Removes a request from the queue.
-	/// Notifies possible token holders that transaction was confirmed and given hash was assigned.
+	/// Notifies possible token holders that request was confirmed and given hash was assigned.
-	fn request_confirmed(&self, id: U256, result: RpcResult) -> Option<TransactionConfirmation>;
+	fn request_confirmed(&self, id: U256, result: RpcResult) -> Option<ConfirmationRequest>;
 
 	/// Returns a request if it is contained in the queue.
-	fn peek(&self, id: &U256) -> Option<TransactionConfirmation>;
+	fn peek(&self, id: &U256) -> Option<ConfirmationRequest>;
 
 	/// Return copy of all the requests in the queue.
-	fn requests(&self) -> Vec<TransactionConfirmation>;
+	fn requests(&self) -> Vec<ConfirmationRequest>;
 
-	/// Returns number of transactions awaiting confirmation.
+	/// Returns number of requests awaiting confirmation.
 	fn len(&self) -> usize;
 
-	/// Returns true if there are no transactions awaiting confirmation.
+	/// Returns true if there are no requests awaiting confirmation.
 	fn is_empty(&self) -> bool;
 }
 
 #[derive(Debug, Clone, PartialEq)]
-/// Result of a pending transaction.
+/// Result of a pending confirmation request.
 pub enum ConfirmationResult {
-	/// The transaction has not yet been confirmed nor rejected.
+	/// The request has not yet been confirmed nor rejected.
 	Waiting,
-	/// The transaction has been rejected.
+	/// The request has been rejected.
 	Rejected,
-	/// The transaction has been confirmed.
+	/// The request has been confirmed.
 	Confirmed(RpcResult),
 }
 
-/// Time you need to confirm the transaction in UI.
+/// Time you need to confirm the request in UI.
 /// This is the amount of time token holder will wait before
 /// returning `None`.
 /// Unless we have a multi-threaded RPC this will lock
@@ -100,12 +100,14 @@ const QUEUE_TIMEOUT_DURATION_SEC : u64 = 20;
 pub struct ConfirmationToken {
 	result: Arc<Mutex<ConfirmationResult>>,
 	handle: thread::Thread,
-	request: TransactionConfirmation,
+	request: ConfirmationRequest,
+	timeout: Duration,
 }
 
 pub struct ConfirmationPromise {
 	id: U256,
 	result: Arc<Mutex<ConfirmationResult>>,
+	timeout: Duration,
 }
 
 impl ConfirmationToken {
@@ -121,6 +123,7 @@ impl ConfirmationToken {
 		ConfirmationPromise {
 			id: self.request.id,
 			result: self.result.clone(),
+			timeout: self.timeout,
 		}
 	}
 }
@@ -134,8 +137,7 @@ impl ConfirmationPromise {
 	/// Returns `None` if transaction was rejected or timeout reached.
 	/// Returns `Some(result)` if transaction was confirmed.
 	pub fn wait_with_timeout(&self) -> Option<RpcResult> {
-		let timeout = Duration::from_secs(QUEUE_TIMEOUT_DURATION_SEC);
+		let res = self.wait_until(Instant::now() + self.timeout);
-		let res = self.wait_until(Instant::now() + timeout);
 		match res {
 			ConfirmationResult::Confirmed(h) => Some(h),
 			ConfirmationResult::Rejected | ConfirmationResult::Waiting => None,
@@ -146,11 +148,11 @@ impl ConfirmationPromise {
 	pub fn result(&self) -> ConfirmationResult { self.wait_until(Instant::now()) }
 
 	/// Blocks current thread and awaits for
-	/// resolution of the transaction (rejected / confirmed)
+	/// resolution of the request (rejected / confirmed)
-	/// Returns `None` if transaction was rejected or timeout reached.
+	/// Returns `None` if request was rejected or timeout reached.
-	/// Returns `Some(result)` if transaction was confirmed.
+	/// Returns `Some(result)` if request was confirmed.
 	pub fn wait_until(&self, deadline: Instant) -> ConfirmationResult {
-		trace!(target: "own_tx", "Signer: Awaiting transaction confirmation... ({:?}).", self.id);
+		trace!(target: "own_tx", "Signer: Awaiting confirmation... ({:?}).", self.id);
 		loop {
 			let now = Instant::now();
 			// Check the result...
@@ -166,12 +168,13 @@ impl ConfirmationPromise {
 	}
 }
 
-/// Queue for all unconfirmed transactions.
+/// Queue for all unconfirmed requests.
 pub struct ConfirmationsQueue {
 	id: Mutex<U256>,
-	queue: RwLock<HashMap<U256, ConfirmationToken>>,
+	queue: RwLock<BTreeMap<U256, ConfirmationToken>>,
 	sender: Mutex<mpsc::Sender<QueueEvent>>,
 	receiver: Mutex<Option<mpsc::Receiver<QueueEvent>>>,
+	timeout: Duration,
 }
 
 impl Default for ConfirmationsQueue {
@@ -180,14 +183,23 @@ impl Default for ConfirmationsQueue {
 
 		ConfirmationsQueue {
 			id: Mutex::new(U256::from(0)),
-			queue: RwLock::new(HashMap::new()),
+			queue: RwLock::new(BTreeMap::new()),
 			sender: Mutex::new(send),
 			receiver: Mutex::new(Some(recv)),
+			timeout: Duration::from_secs(QUEUE_TIMEOUT_DURATION_SEC),
 		}
 	}
 }
 
 impl ConfirmationsQueue {
+	#[cfg(test)]
+	/// Creates new confirmations queue with specified timeout
+	pub fn with_timeout(timeout: Duration) -> Self {
+		let mut queue = Self::default();
+		queue.timeout = timeout;
+		queue
+	}
+
 	/// Blocks the thread and starts listening for notifications regarding all actions in the queue.
 	/// For each event, `listener` callback will be invoked.
 	/// This method can be used only once (only single consumer of events can exist).
@@ -221,9 +233,9 @@ impl ConfirmationsQueue {
 		let _ = self.sender.lock().send(message);
 	}
 
-	/// Removes transaction from this queue and notifies `ConfirmationPromise` holders about the result.
+	/// Removes requests from this queue and notifies `ConfirmationPromise` holders about the result.
 	/// Notifies also a receiver about that event.
-	fn remove(&self, id: U256, result: Option<RpcResult>) -> Option<TransactionConfirmation> {
+	fn remove(&self, id: U256, result: Option<RpcResult>) -> Option<ConfirmationRequest> {
 		let token = self.queue.write().remove(&id);
 
 		if let Some(token) = token {
@@ -248,7 +260,7 @@ impl Drop for ConfirmationsQueue {
 }
 
 impl SigningQueue for ConfirmationsQueue {
-	fn add_request(&self, transaction: TransactionRequest) -> ConfirmationPromise {
+	fn add_request(&self, request: ConfirmationPayload) -> ConfirmationPromise {
 		// Increment id
 		let id = {
 			let mut last_id = self.id.lock();
@@ -257,16 +269,19 @@ impl SigningQueue for ConfirmationsQueue {
 		};
 		// Add request to queue
 		let res = {
+			debug!(target: "own_tx", "Signer: New entry ({:?}) in confirmation queue.", id);
+			trace!(target: "own_tx", "Signer: ({:?}) : {:?}", id, request);
+
 			let mut queue = self.queue.write();
 			queue.insert(id, ConfirmationToken {
 				result: Arc::new(Mutex::new(ConfirmationResult::Waiting)),
 				handle: thread::current(),
-				request: TransactionConfirmation {
+				request: ConfirmationRequest {
 					id: id,
-					transaction: transaction,
+					payload: request,
 				},
+				timeout: self.timeout,
 			});
-			debug!(target: "own_tx", "Signer: New transaction ({:?}) in confirmation queue.", id);
 			queue.get(&id).map(|token| token.as_promise()).expect("Token was just inserted.")
 		};
 		// Notify listeners
@@ -275,21 +290,21 @@ impl SigningQueue for ConfirmationsQueue {
 
 	}
 
-	fn peek(&self, id: &U256) -> Option<TransactionConfirmation> {
+	fn peek(&self, id: &U256) -> Option<ConfirmationRequest> {
 		self.queue.read().get(id).map(|token| token.request.clone())
 	}
 
-	fn request_rejected(&self, id: U256) -> Option<TransactionConfirmation> {
+	fn request_rejected(&self, id: U256) -> Option<ConfirmationRequest> {
-		debug!(target: "own_tx", "Signer: Transaction rejected ({:?}).", id);
+		debug!(target: "own_tx", "Signer: Request rejected ({:?}).", id);
 		self.remove(id, None)
 	}
 
-	fn request_confirmed(&self, id: U256, result: RpcResult) -> Option<TransactionConfirmation> {
+	fn request_confirmed(&self, id: U256, result: RpcResult) -> Option<ConfirmationRequest> {
 		debug!(target: "own_tx", "Signer: Transaction confirmed ({:?}).", id);
 		self.remove(id, Some(result))
 	}
 
-	fn requests(&self) -> Vec<TransactionConfirmation> {
+	fn requests(&self) -> Vec<ConfirmationRequest> {
 		let queue = self.queue.read();
 		queue.values().map(|token| token.request.clone()).collect()
 	}
@@ -312,20 +327,20 @@ mod test {
 	use std::thread;
 	use std::sync::Arc;
 	use util::{Address, U256, H256, Mutex};
-	use v1::helpers::{SigningQueue, ConfirmationsQueue, QueueEvent, TransactionRequest};
+	use v1::helpers::{SigningQueue, ConfirmationsQueue, QueueEvent, FilledTransactionRequest, ConfirmationPayload};
 	use v1::types::H256 as NH256;
 	use jsonrpc_core::to_value;
 
-	fn request() -> TransactionRequest {
+	fn request() -> ConfirmationPayload {
-		TransactionRequest {
+		ConfirmationPayload::Transaction(FilledTransactionRequest {
 			from: Address::from(1),
 			to: Some(Address::from(2)),
-			gas_price: None,
+			gas_price: 0.into(),
-			gas: None,
+			gas: 10_000.into(),
-			value: Some(U256::from(10_000_000)),
+			value: 10_000_000.into(),
-			data: None,
+			data: vec![],
 			nonce: None,
-		}
+		})
 	}
 
 	#[test]
@@ -391,6 +406,6 @@ mod test {
 		assert_eq!(all.len(), 1);
 		let el = all.get(0).unwrap();
 		assert_eq!(el.id, U256::from(1));
-		assert_eq!(el.transaction, request);
+		assert_eq!(el.payload, request);
 	}
 }

rpc/src/v1/impls/eth.rs

@@ -47,6 +47,23 @@ use v1::helpers::CallRequest as CRequest;
 use v1::impls::{default_gas_price, dispatch_transaction, error_codes};
 use serde;
 
+/// Eth RPC options
+pub struct EthClientOptions {
+	/// Returns receipt from pending blocks
+	pub allow_pending_receipt_query: bool,
+	/// Send additional block number when asking for work
+	pub send_block_number_in_get_work: bool,
+}
+
+impl Default for EthClientOptions {
+	fn default() -> Self {
+		EthClientOptions {
+			allow_pending_receipt_query: true,
+			send_block_number_in_get_work: true,
+		}
+	}
+}
+
 /// Eth rpc implementation.
 pub struct EthClient<C, S: ?Sized, M, EM> where
 	C: MiningBlockChainClient,
@@ -60,7 +77,7 @@ pub struct EthClient<C, S: ?Sized, M, EM> where
 	miner: Weak<M>,
 	external_miner: Arc<EM>,
 	seed_compute: Mutex<SeedHashCompute>,
-	allow_pending_receipt_query: bool,
+	options: EthClientOptions,
 }
 
 impl<C, S: ?Sized, M, EM> EthClient<C, S, M, EM> where
@@ -70,7 +87,7 @@ impl<C, S: ?Sized, M, EM> EthClient<C, S, M, EM> where
 	EM: ExternalMinerService {
 
 	/// Creates new EthClient.
-	pub fn new(client: &Arc<C>, sync: &Arc<S>, accounts: &Arc<AccountProvider>, miner: &Arc<M>, em: &Arc<EM>, allow_pending_receipt_query: bool)
+	pub fn new(client: &Arc<C>, sync: &Arc<S>, accounts: &Arc<AccountProvider>, miner: &Arc<M>, em: &Arc<EM>, options: EthClientOptions)
 		-> EthClient<C, S, M, EM> {
 		EthClient {
 			client: Arc::downgrade(client),
@@ -79,7 +96,7 @@ impl<C, S: ?Sized, M, EM> EthClient<C, S, M, EM> where
 			accounts: Arc::downgrade(accounts),
 			external_miner: em.clone(),
 			seed_compute: Mutex::new(SeedHashCompute::new()),
-			allow_pending_receipt_query: allow_pending_receipt_query,
+			options: options,
 		}
 	}
 
@@ -316,7 +333,7 @@ impl<C, S: ?Sized, M, EM> Eth for EthClient<C, S, M, EM> where
 	fn is_mining(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
 		match params {
-			Params::None => to_value(&self.external_miner.is_mining()),
+			Params::None => to_value(&(take_weak!(self.miner).is_sealing())),
 			_ => Err(Error::invalid_params())
 		}
 	}
@@ -340,10 +357,16 @@ impl<C, S: ?Sized, M, EM> Eth for EthClient<C, S, M, EM> where
 		}
 	}
 
-	fn accounts(&self, _: Params) -> Result<Value, Error> {
+	fn accounts(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
+		match params {
+			Params::None => {
 				let store = take_weak!(self.accounts);
-		to_value(&store.accounts().into_iter().map(Into::into).collect::<Vec<RpcH160>>())
+				let accounts = try!(store.accounts().map_err(|_| Error::internal_error()));
+				to_value(&accounts.into_iter().map(Into::into).collect::<Vec<RpcH160>>())
+			},
+			_ => Err(Error::invalid_params())
+		}
 	}
 
 	fn block_number(&self, params: Params) -> Result<Value, Error> {
@@ -375,7 +398,7 @@ impl<C, S: ?Sized, M, EM> Eth for EthClient<C, S, M, EM> where
 				match block_number {
 					BlockNumber::Pending => to_value(&RpcU256::from(take_weak!(self.miner).storage_at(&*take_weak!(self.client), &address, &H256::from(position)))),
 					id => match take_weak!(self.client).storage_at(&address, &H256::from(position), id.into()) {
-						Some(s) => to_value(&RpcU256::from(s)),
+						Some(s) => to_value(&RpcH256::from(s)),
 						None => Err(make_unsupported_err()), // None is only returned on unsupported requests.
 					}
 				}
@@ -490,7 +513,7 @@ impl<C, S: ?Sized, M, EM> Eth for EthClient<C, S, M, EM> where
 				let miner = take_weak!(self.miner);
 				let hash: H256 = hash.into();
 				match miner.pending_receipts().get(&hash) {
-					Some(receipt) if self.allow_pending_receipt_query => to_value(&Receipt::from(receipt.clone())),
+					Some(receipt) if self.options.allow_pending_receipt_query => to_value(&Receipt::from(receipt.clone())),
 					_ => {
 						let client = take_weak!(self.client);
 						let receipt = client.transaction_receipt(TransactionID::Hash(hash));
@@ -576,8 +599,13 @@ impl<C, S: ?Sized, M, EM> Eth for EthClient<C, S, M, EM> where
 					let pow_hash = b.hash();
 					let target = Ethash::difficulty_to_boundary(b.block().header().difficulty());
 					let seed_hash = self.seed_compute.lock().get_seedhash(b.block().header().number());
+
+					if self.options.send_block_number_in_get_work {
 						let block_number = RpcU256::from(b.block().header().number());
 						to_value(&(RpcH256::from(pow_hash), RpcH256::from(seed_hash), RpcH256::from(target), block_number))
+					} else {
+						to_value(&(RpcH256::from(pow_hash), RpcH256::from(seed_hash), RpcH256::from(target)))
+					}
 				}).unwrap_or(Err(Error::internal_error()))	// no work found.
 			},
 			_ => Err(Error::invalid_params())

rpc/src/v1/impls/eth_signing.rs

@@ -23,24 +23,21 @@ use ethcore::client::MiningBlockChainClient;
 use util::{U256, Address, H256, Mutex};
 use transient_hashmap::TransientHashMap;
 use ethcore::account_provider::AccountProvider;
-use v1::helpers::{SigningQueue, ConfirmationPromise, ConfirmationResult, ConfirmationsQueue, TransactionRequest as TRequest};
+use v1::helpers::{SigningQueue, ConfirmationPromise, ConfirmationResult, ConfirmationsQueue, ConfirmationPayload, TransactionRequest as TRequest, FilledTransactionRequest as FilledRequest};
 use v1::traits::EthSigning;
 use v1::types::{TransactionRequest, H160 as RpcH160, H256 as RpcH256, H520 as RpcH520, U256 as RpcU256};
-use v1::impls::{default_gas_price, sign_and_dispatch, transaction_rejected_error};
+use v1::impls::{default_gas_price, sign_and_dispatch, transaction_rejected_error, signer_disabled_error};
 
-fn fill_optional_fields<C, M>(request: &mut TRequest, client: &C, miner: &M)
+fn fill_optional_fields<C, M>(request: TRequest, client: &C, miner: &M) -> FilledRequest
 	where C: MiningBlockChainClient, M: MinerService {
-	if request.value.is_none() {
+	FilledRequest {
-		request.value = Some(U256::from(0));
+		from: request.from,
-	}
+		to: request.to,
-	if request.gas.is_none() {
+		nonce: request.nonce,
-		request.gas = Some(miner.sensible_gas_limit());
+		gas_price: request.gas_price.unwrap_or_else(|| default_gas_price(client, miner)),
-	}
+		gas: request.gas.unwrap_or_else(|| miner.sensible_gas_limit()),
-	if request.gas_price.is_none() {
+		value: request.value.unwrap_or_else(|| 0.into()),
-		request.gas_price = Some(default_gas_price(client, miner));
+		data: request.data.unwrap_or_else(Vec::new),
-	}
-	if request.data.is_none() {
-		request.data = Some(Vec::new());
 	}
 }
 
@@ -74,10 +71,26 @@ impl<C, M> EthSigningQueueClient<C, M> where C: MiningBlockChainClient, M: Miner
 		Ok(())
 	}
 
-	fn dispatch<F: FnOnce(ConfirmationPromise) -> Result<Value, Error>>(&self, params: Params, f: F) -> Result<Value, Error> {
+	fn dispatch_sign<F: FnOnce(ConfirmationPromise) -> Result<Value, Error>>(&self, params: Params, f: F) -> Result<Value, Error> {
+		from_params::<(RpcH160, RpcH256)>(params).and_then(|(address, msg)| {
+			let address: Address = address.into();
+			let msg: H256 = msg.into();
+
+			let accounts = take_weak!(self.accounts);
+			if accounts.is_unlocked(address) {
+				return to_value(&accounts.sign(address, msg).ok().map_or_else(RpcH520::default, Into::into));
+			}
+
+			let queue = take_weak!(self.queue);
+			let promise = queue.add_request(ConfirmationPayload::Sign(address, msg));
+			f(promise)
+		})
+	}
+
+	fn dispatch_transaction<F: FnOnce(ConfirmationPromise) -> Result<Value, Error>>(&self, params: Params, f: F) -> Result<Value, Error> {
 		from_params::<(TransactionRequest, )>(params)
 			.and_then(|(request, )| {
-				let mut request: TRequest = request.into();
+				let request: TRequest = request.into();
 				let accounts = take_weak!(self.accounts);
 				let (client, miner) = (take_weak!(self.client), take_weak!(self.miner));
 
@@ -87,8 +100,8 @@ impl<C, M> EthSigningQueueClient<C, M> where C: MiningBlockChainClient, M: Miner
 				}
 
 				let queue = take_weak!(self.queue);
-				fill_optional_fields(&mut request, &*client, &*miner);
+				let request = fill_optional_fields(request, &*client, &*miner);
-				let promise = queue.add_request(request);
+				let promise = queue.add_request(ConfirmationPayload::Transaction(request));
 				f(promise)
 			})
 	}
@@ -98,23 +111,32 @@ impl<C, M> EthSigning for EthSigningQueueClient<C, M>
 	where C: MiningBlockChainClient + 'static, M: MinerService + 'static
 {
 
-	fn sign(&self, _params: Params) -> Result<Value, Error> {
+	fn sign(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
-		warn!("Invoking eth_sign is not yet supported with signer enabled.");
+		self.dispatch_sign(params, |promise| {
-		// TODO [ToDr] Implement sign when rest of the signing queue is ready.
+			promise.wait_with_timeout().unwrap_or_else(|| to_value(&RpcH520::default()))
-		rpc_unimplemented!()
+		})
+	}
+
+	fn post_sign(&self, params: Params) -> Result<Value, Error> {
+		try!(self.active());
+		self.dispatch_sign(params, |promise| {
+			let id = promise.id();
+			self.pending.lock().insert(id, promise);
+			to_value(&RpcU256::from(id))
+		})
 	}
 
 	fn send_transaction(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
-		self.dispatch(params, |promise| {
+		self.dispatch_transaction(params, |promise| {
 			promise.wait_with_timeout().unwrap_or_else(|| to_value(&RpcH256::default()))
 		})
 	}
 
 	fn post_transaction(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
-		self.dispatch(params, |promise| {
+		self.dispatch_transaction(params, |promise| {
 			let id = promise.id();
 			self.pending.lock().insert(id, promise);
 			to_value(&RpcU256::from(id))
@@ -193,13 +215,18 @@ impl<C, M> EthSigning for EthSigningUnsafeClient<C, M> where
 			})
 	}
 
+	fn post_sign(&self, _: Params) -> Result<Value, Error> {
+		// We don't support this in non-signer mode.
+		Err(signer_disabled_error())
+	}
+
 	fn post_transaction(&self, _: Params) -> Result<Value, Error> {
 		// We don't support this in non-signer mode.
-		Err(Error::invalid_params())
+		Err(signer_disabled_error())
 	}
 
 	fn check_transaction(&self, _: Params) -> Result<Value, Error> {
 		// We don't support this in non-signer mode.
-		Err(Error::invalid_params())
+		Err(signer_disabled_error())
 	}
 }

rpc/src/v1/impls/ethcore.rs

@@ -27,7 +27,7 @@ use ethcore::miner::MinerService;
 use v1::traits::Ethcore;
 use v1::types::{Bytes, U256};
 use v1::helpers::{SigningQueue, ConfirmationsQueue};
-use v1::impls::error_codes;
+use v1::impls::signer_disabled_error;
 
 /// Ethcore implementation.
 pub struct EthcoreClient<C, M> where
@@ -152,11 +152,7 @@ impl<C, M> Ethcore for EthcoreClient<C, M> where M: MinerService + 'static, C: M
 	fn unsigned_transactions_count(&self, _params: Params) -> Result<Value, Error> {
 		try!(self.active());
 		match self.confirmations_queue {
-			None => Err(Error {
+			None => Err(signer_disabled_error()),
-				code: ErrorCode::ServerError(error_codes::SIGNER_DISABLED),
-				message: "Trusted Signer is disabled. This API is not available.".into(),
-				data: None
-			}),
 			Some(ref queue) => to_value(&queue.len()),
 		}
 	}

rpc/src/v1/impls/mod.rs

@@ -42,7 +42,7 @@ mod traces;
 mod rpc;
 
 pub use self::web3::Web3Client;
-pub use self::eth::EthClient;
+pub use self::eth::{EthClient, EthClientOptions};
 pub use self::eth_filter::EthFilterClient;
 pub use self::eth_signing::{EthSigningUnsafeClient, EthSigningQueueClient};
 pub use self::net::NetClient;
@@ -54,7 +54,7 @@ pub use self::traces::TracesClient;
 pub use self::rpc::RpcClient;
 
 use v1::helpers::TransactionRequest;
-use v1::types::H256 as NH256;
+use v1::types::{H256 as RpcH256, H520 as RpcH520};
 use ethcore::error::Error as EthcoreError;
 use ethcore::miner::MinerService;
 use ethcore::client::MiningBlockChainClient;
@@ -80,7 +80,7 @@ mod error_codes {
 
 fn dispatch_transaction<C, M>(client: &C, miner: &M, signed_transaction: SignedTransaction) -> Result<Value, Error>
 	where C: MiningBlockChainClient, M: MinerService {
-	let hash = NH256::from(signed_transaction.hash());
+	let hash = RpcH256::from(signed_transaction.hash());
 
 	let import = miner.import_own_transaction(client, signed_transaction);
 
@@ -89,6 +89,12 @@ fn dispatch_transaction<C, M>(client: &C, miner: &M, signed_transaction: SignedT
 		.and_then(|_| to_value(&hash))
 }
 
+fn signature_with_password(accounts: &AccountProvider, address: Address, hash: H256, pass: String) -> Result<Value, Error> {
+	accounts.sign_with_password(address, pass, hash)
+		.map_err(password_error)
+		.and_then(|hash| to_value(&RpcH520::from(hash)))
+}
+
 fn prepare_transaction<C, M>(client: &C, miner: &M, request: TransactionRequest) -> Transaction where C: MiningBlockChainClient, M: MinerService {
 	Transaction {
 		nonce: request.nonce
@@ -105,9 +111,10 @@ fn prepare_transaction<C, M>(client: &C, miner: &M, request: TransactionRequest)
 	}
 }
 
-fn unlock_sign_and_dispatch<C, M>(client: &C, miner: &M, request: TransactionRequest, account_provider: &AccountProvider, address: Address, password: String) -> Result<Value, Error>
+fn unlock_sign_and_dispatch<C, M>(client: &C, miner: &M, request: TransactionRequest, account_provider: &AccountProvider, password: String) -> Result<Value, Error>
 	where C: MiningBlockChainClient, M: MinerService {
 
+	let address = request.from;
 	let signed_transaction = {
 		let t = prepare_transaction(client, miner, request);
 		let hash = t.hash();
@@ -140,6 +147,14 @@ fn default_gas_price<C, M>(client: &C, miner: &M) -> U256 where C: MiningBlockCh
 		.unwrap_or_else(|_| miner.sensible_gas_price())
 }
 
+fn signer_disabled_error() -> Error {
+	Error {
+		code: ErrorCode::ServerError(error_codes::SIGNER_DISABLED),
+		message: "Trusted Signer is disabled. This API is not available.".into(),
+		data: None
+	}
+}
+
 fn signing_error(error: AccountError) -> Error {
 	Error {
 		code: ErrorCode::ServerError(error_codes::ACCOUNT_LOCKED),

rpc/src/v1/impls/personal.rs

@@ -62,10 +62,16 @@ impl<C: 'static, M: 'static> Personal for PersonalClient<C, M> where C: MiningBl
 			.unwrap_or_else(|| to_value(&false))
 	}
 
-	fn accounts(&self, _: Params) -> Result<Value, Error> {
+	fn accounts(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
+		match params {
+			Params::None => {
 				let store = take_weak!(self.accounts);
-		to_value(&store.accounts().into_iter().map(Into::into).collect::<Vec<RpcH160>>())
+				let accounts = try!(store.accounts().map_err(|_| Error::internal_error()));
+				to_value(&accounts.into_iter().map(Into::into).collect::<Vec<RpcH160>>())
+			},
+			_ => Err(Error::invalid_params())
+		}
 	}
 
 	fn new_account(&self, params: Params) -> Result<Value, Error> {
@@ -99,10 +105,9 @@ impl<C: 'static, M: 'static> Personal for PersonalClient<C, M> where C: MiningBl
 		from_params::<(TransactionRequest, String)>(params)
 			.and_then(|(request, password)| {
 				let request: TRequest = request.into();
-				let sender = request.from;
 				let accounts = take_weak!(self.accounts);
 
-				unlock_sign_and_dispatch(&*take_weak!(self.client), &*take_weak!(self.miner), request, &*accounts, sender, password)
+				unlock_sign_and_dispatch(&*take_weak!(self.client), &*take_weak!(self.miner), request, &*accounts, password)
 			})
 	}
 

rpc/src/v1/impls/personal_signer.rs

@@ -22,9 +22,9 @@ use ethcore::account_provider::AccountProvider;
 use ethcore::client::MiningBlockChainClient;
 use ethcore::miner::MinerService;
 use v1::traits::PersonalSigner;
-use v1::types::{TransactionModification, TransactionConfirmation, U256};
+use v1::types::{TransactionModification, ConfirmationRequest, U256};
-use v1::impls::unlock_sign_and_dispatch;
+use v1::impls::{unlock_sign_and_dispatch, signature_with_password};
-use v1::helpers::{SigningQueue, ConfirmationsQueue};
+use v1::helpers::{SigningQueue, ConfirmationsQueue, ConfirmationPayload};
 
 /// Transactions confirmation (personal) rpc implementation.
 pub struct SignerClient<C, M> where C: MiningBlockChainClient, M: MinerService {
@@ -55,14 +55,16 @@ impl<C: 'static, M: 'static> SignerClient<C, M> where C: MiningBlockChainClient,
 
 impl<C: 'static, M: 'static> PersonalSigner for SignerClient<C, M> where C: MiningBlockChainClient, M: MinerService {
 
-	fn transactions_to_confirm(&self, _params: Params) -> Result<Value, Error> {
+	fn requests_to_confirm(&self, _params: Params) -> Result<Value, Error> {
 		try!(self.active());
 		let queue = take_weak!(self.queue);
-		to_value(&queue.requests().into_iter().map(From::from).collect::<Vec<TransactionConfirmation>>())
+		to_value(&queue.requests().into_iter().map(From::from).collect::<Vec<ConfirmationRequest>>())
 	}
 
-	fn confirm_transaction(&self, params: Params) -> Result<Value, Error> {
+	fn confirm_request(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
+		// TODO [ToDr] TransactionModification is redundant for some calls
+		// might be better to replace it in future
 		from_params::<(U256, TransactionModification, String)>(params).and_then(
 			|(id, modification, pass)| {
 				let id = id.into();
@@ -70,17 +72,23 @@ impl<C: 'static, M: 'static> PersonalSigner for SignerClient<C, M> where C: Mini
 				let queue = take_weak!(self.queue);
 				let client = take_weak!(self.client);
 				let miner = take_weak!(self.miner);
+
 				queue.peek(&id).map(|confirmation| {
-					let mut request = confirmation.transaction;
+					let result = match confirmation.payload {
+						ConfirmationPayload::Transaction(mut request) => {
 							// apply modification
 							if let Some(gas_price) = modification.gas_price {
-						request.gas_price = Some(gas_price.into());
+								request.gas_price = gas_price.into();
 							}
 
-					let sender = request.from;
+							unlock_sign_and_dispatch(&*client, &*miner, request.into(), &*accounts, pass)
-					let result = unlock_sign_and_dispatch(&*client, &*miner, request, &*accounts, sender, pass);
+						},
-					if let Ok(ref hash) = result {
+						ConfirmationPayload::Sign(address, hash) => {
-						queue.request_confirmed(id, Ok(hash.clone()));
+							signature_with_password(&*accounts, address, hash, pass)
+						}
+					};
+					if let Ok(ref response) = result {
+						queue.request_confirmed(id, Ok(response.clone()));
 					}
 					result
 				}).unwrap_or_else(|| Err(Error::invalid_params()))
@@ -88,7 +96,7 @@ impl<C: 'static, M: 'static> PersonalSigner for SignerClient<C, M> where C: Mini
 		)
 	}
 
-	fn reject_transaction(&self, params: Params) -> Result<Value, Error> {
+	fn reject_request(&self, params: Params) -> Result<Value, Error> {
 		try!(self.active());
 		from_params::<(U256, )>(params).and_then(
 			|(id, )| {

rpc/src/v1/tests/eth.rs

@@ -121,7 +121,7 @@ impl EthTester {
 			&account_provider,
 			&miner_service,
 			&external_miner,
-			true
+			Default::default(),
 		);
 		let eth_sign = EthSigningUnsafeClient::new(
 			&client,

rpc/src/v1/tests/helpers/miner_service.rs

@@ -181,8 +181,9 @@ impl MinerService for TestMinerService {
 		unimplemented!();
 	}
 
-	fn map_sealing_work<F, T>(&self, _chain: &MiningBlockChainClient, _f: F) -> Option<T> where F: FnOnce(&ClosedBlock) -> T {
+	fn map_sealing_work<F, T>(&self, chain: &MiningBlockChainClient, f: F) -> Option<T> where F: FnOnce(&ClosedBlock) -> T {
-		None
+		let open_block = chain.prepare_open_block(self.author(), *self.gas_range_target.write(), self.extra_data());
+		Some(f(&open_block.close()))
 	}
 
 	fn transaction(&self, hash: &H256) -> Option<SignedTransaction> {
@@ -205,6 +206,10 @@ impl MinerService for TestMinerService {
 		self.last_nonces.read().get(address).cloned()
 	}
 
+	fn is_sealing(&self) -> bool {
+		false
+	}
+
 	/// Submit `seal` as a valid solution for the header of `pow_hash`.
 	/// Will check the seal, but not actually insert the block into the chain.
 	fn submit_seal(&self, _chain: &MiningBlockChainClient, _pow_hash: H256, _seal: Vec<Bytes>) -> Result<(), Error> {

rpc/src/v1/tests/mocked/eth.rs

@@ -17,10 +17,11 @@
 use std::str::FromStr;
 use std::collections::HashMap;
 use std::sync::Arc;
+use std::time::{Instant, Duration};
 use jsonrpc_core::IoHandler;
 use util::hash::{Address, H256, FixedHash};
 use util::numbers::{Uint, U256};
-use util::RwLock;
+use util::Mutex;
 use ethcore::account_provider::AccountProvider;
 use ethcore::client::{TestBlockChainClient, EachBlockWith, Executed, TransactionID};
 use ethcore::log_entry::{LocalizedLogEntry, LogEntry};
@@ -28,7 +29,7 @@ use ethcore::receipt::LocalizedReceipt;
 use ethcore::transaction::{Transaction, Action};
 use ethcore::miner::{ExternalMiner, MinerService};
 use ethsync::SyncState;
-use v1::{Eth, EthClient, EthSigning, EthSigningUnsafeClient};
+use v1::{Eth, EthClient, EthClientOptions, EthSigning, EthSigningUnsafeClient};
 use v1::tests::helpers::{TestSyncProvider, Config, TestMinerService};
 use rustc_serialize::hex::ToHex;
 
@@ -57,19 +58,25 @@ struct EthTester {
 	pub sync: Arc<TestSyncProvider>,
 	pub accounts_provider: Arc<AccountProvider>,
 	pub miner: Arc<TestMinerService>,
-	hashrates: Arc<RwLock<HashMap<H256, U256>>>,
+	hashrates: Arc<Mutex<HashMap<H256, (Instant, U256)>>>,
 	pub io: IoHandler,
 }
 
 impl Default for EthTester {
 	fn default() -> Self {
+		Self::new_with_options(Default::default())
+	}
+}
+
+impl EthTester {
+	pub fn new_with_options(options: EthClientOptions) -> Self {
 		let client = blockchain_client();
 		let sync = sync_provider();
 		let ap = accounts_provider();
 		let miner = miner_service();
-		let hashrates = Arc::new(RwLock::new(HashMap::new()));
+		let hashrates = Arc::new(Mutex::new(HashMap::new()));
 		let external_miner = Arc::new(ExternalMiner::new(hashrates.clone()));
-		let eth = EthClient::new(&client, &sync, &ap, &miner, &external_miner, true).to_delegate();
+		let eth = EthClient::new(&client, &sync, &ap, &miner, &external_miner, options).to_delegate();
 		let sign = EthSigningUnsafeClient::new(&client, &ap, &miner).to_delegate();
 		let io = IoHandler::new();
 		io.add_delegate(eth);
@@ -133,9 +140,9 @@ fn rpc_eth_syncing() {
 #[test]
 fn rpc_eth_hashrate() {
 	let tester = EthTester::default();
-	tester.hashrates.write().insert(H256::from(0), U256::from(0xfffa));
+	tester.hashrates.lock().insert(H256::from(0), (Instant::now() + Duration::from_secs(2), U256::from(0xfffa)));
-	tester.hashrates.write().insert(H256::from(0), U256::from(0xfffb));
+	tester.hashrates.lock().insert(H256::from(0), (Instant::now() + Duration::from_secs(2), U256::from(0xfffb)));
-	tester.hashrates.write().insert(H256::from(1), U256::from(0x1));
+	tester.hashrates.lock().insert(H256::from(1), (Instant::now() + Duration::from_secs(2), U256::from(0x1)));
 
 	let request = r#"{"jsonrpc": "2.0", "method": "eth_hashrate", "params": [], "id": 1}"#;
 	let response = r#"{"jsonrpc":"2.0","result":"0xfffc","id":1}"#;
@@ -158,8 +165,8 @@ fn rpc_eth_submit_hashrate() {
 	let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
 
 	assert_eq!(tester.io.handle_request(request), Some(response.to_owned()));
-	assert_eq!(tester.hashrates.read().get(&H256::from("0x59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c")).cloned(),
+	assert_eq!(tester.hashrates.lock().get(&H256::from("0x59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c")).cloned().unwrap().1,
-		Some(U256::from(0x500_000)));
+		U256::from(0x500_000));
 }
 
 #[test]
@@ -210,16 +217,11 @@ fn rpc_eth_author() {
 #[test]
 fn rpc_eth_mining() {
 	let tester = EthTester::default();
+	tester.miner.set_author(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap());
 
 	let request = r#"{"jsonrpc": "2.0", "method": "eth_mining", "params": [], "id": 1}"#;
 	let response = r#"{"jsonrpc":"2.0","result":false,"id":1}"#;
 	assert_eq!(tester.io.handle_request(request), Some(response.to_owned()));
-
-	tester.hashrates.write().insert(H256::from(1), U256::from(0x1));
-
-	let request = r#"{"jsonrpc": "2.0", "method": "eth_mining", "params": [], "id": 1}"#;
-	let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
-	assert_eq!(tester.io.handle_request(request), Some(response.to_owned()));
 }
 
 #[test]
@@ -299,7 +301,7 @@ fn rpc_eth_storage_at() {
 		"params": ["0x0000000000000000000000000000000000000001", "0x4", "latest"],
 		"id": 1
 	}"#;
-	let response = r#"{"jsonrpc":"2.0","result":"0x07","id":1}"#;
+	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000007","id":1}"#;
 
 	assert_eq!(tester.io.handle_request(request), Some(response.to_owned()));
 }
@@ -794,15 +796,26 @@ fn returns_no_work_if_cant_mine() {
 }
 
 #[test]
-fn returns_error_if_can_mine_and_no_closed_block() {
+fn returns_correct_work_package() {
-	use ethsync::{SyncState};
-
 	let eth_tester = EthTester::default();
 	eth_tester.miner.set_author(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap());
-	eth_tester.sync.status.write().state = SyncState::Idle;
 
 	let request = r#"{"jsonrpc": "2.0", "method": "eth_getWork", "params": [], "id": 1}"#;
-	let response = r#"{"jsonrpc":"2.0","error":{"code":-32603,"message":"Internal error","data":null},"id":1}"#;
+	let response = r#"{"jsonrpc":"2.0","result":["0x3bbe93f74e7b97ae00784aeff8819c5cb600dd87e8b282a5d3446f3f871f0347","0x0000000000000000000000000000000000000000000000000000000000000000","0x0000800000000000000000000000000000000000000000000000000000000000","0x01"],"id":1}"#;
+
+	assert_eq!(eth_tester.io.handle_request(request), Some(response.to_owned()));
+}
+
+#[test]
+fn should_not_return_block_number() {
+	let eth_tester = EthTester::new_with_options(EthClientOptions {
+		allow_pending_receipt_query: true,
+		send_block_number_in_get_work: false,
+	});
+	eth_tester.miner.set_author(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap());
+
+	let request = r#"{"jsonrpc": "2.0", "method": "eth_getWork", "params": [], "id": 1}"#;
+	let response = r#"{"jsonrpc":"2.0","result":["0x3bbe93f74e7b97ae00784aeff8819c5cb600dd87e8b282a5d3446f3f871f0347","0x0000000000000000000000000000000000000000000000000000000000000000","0x0000800000000000000000000000000000000000000000000000000000000000"],"id":1}"#;
 
 	assert_eq!(eth_tester.io.handle_request(request), Some(response.to_owned()));
 }

rpc/src/v1/tests/mocked/eth_signing.rs

@@ -16,13 +16,14 @@
 
 use std::str::FromStr;
 use std::sync::Arc;
+use std::time::Duration;
 use jsonrpc_core::IoHandler;
 use v1::impls::EthSigningQueueClient;
 use v1::traits::EthSigning;
 use v1::helpers::{ConfirmationsQueue, SigningQueue};
 use v1::tests::helpers::TestMinerService;
 use util::{Address, FixedHash};
-use util::numbers::{Uint, U256};
+use util::numbers::{Uint, U256, H256};
 use ethcore::account_provider::AccountProvider;
 use ethcore::client::TestBlockChainClient;
 use ethcore::transaction::{Transaction, Action};
@@ -37,7 +38,7 @@ struct EthSigningTester {
 
 impl Default for EthSigningTester {
 	fn default() -> Self {
-		let queue = Arc::new(ConfirmationsQueue::default());
+		let queue = Arc::new(ConfirmationsQueue::with_timeout(Duration::from_millis(1)));
 		let client = Arc::new(TestBlockChainClient::default());
 		let miner = Arc::new(TestMinerService::default());
 		let accounts = Arc::new(AccountProvider::transient_provider());
@@ -58,6 +59,78 @@ fn eth_signing() -> EthSigningTester {
 	EthSigningTester::default()
 }
 
+#[test]
+fn should_add_sign_to_queue() {
+	// given
+	let tester = eth_signing();
+	let address = Address::random();
+	assert_eq!(tester.queue.requests().len(), 0);
+
+	// when
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "eth_sign",
+		"params": [
+			""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+			"0x0000000000000000000000000000000000000000000000000000000000000005"
+		],
+		"id": 1
+	}"#;
+	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","id":1}"#;
+
+	// then
+	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
+	assert_eq!(tester.queue.requests().len(), 1);
+}
+
+#[test]
+fn should_post_sign_to_queue() {
+	// given
+	let tester = eth_signing();
+	let address = Address::random();
+	assert_eq!(tester.queue.requests().len(), 0);
+
+	// when
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "eth_postSign",
+		"params": [
+			""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+			"0x0000000000000000000000000000000000000000000000000000000000000005"
+		],
+		"id": 1
+	}"#;
+	let response = r#"{"jsonrpc":"2.0","result":"0x01","id":1}"#;
+
+	// then
+	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
+	assert_eq!(tester.queue.requests().len(), 1);
+}
+
+#[test]
+fn should_sign_if_account_is_unlocked() {
+	// given
+	let tester = eth_signing();
+	let hash: H256 = 5.into();
+	let acc = tester.accounts.new_account("test").unwrap();
+	tester.accounts.unlock_account_permanently(acc, "test".into()).unwrap();
+
+	let signature = tester.accounts.sign(acc, hash).unwrap();
+
+	// when
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "eth_sign",
+		"params": [
+			""#.to_owned() + format!("0x{:?}", acc).as_ref() + r#"",
+			""# + format!("0x{:?}", hash).as_ref() + r#""
+		],
+		"id": 1
+	}"#;
+	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", signature).as_ref() + r#"","id":1}"#;
+	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
+	assert_eq!(tester.queue.requests().len(), 0);
+}
 
 #[test]
 fn should_add_transaction_to_queue() {
@@ -81,7 +154,6 @@ fn should_add_transaction_to_queue() {
 	}"#;
 	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000000","id":1}"#;
 
-
 	// then
 	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
 	assert_eq!(tester.queue.requests().len(), 1);

rpc/src/v1/tests/mocked/personal.rs

@@ -110,7 +110,7 @@ fn new_account() {
 
 	let res = tester.io.handle_request(request);
 
-	let accounts = tester.accounts.accounts();
+	let accounts = tester.accounts.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	let address = accounts[0];
 	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"","id":1}"#;
@@ -122,7 +122,7 @@ fn new_account() {
 fn should_be_able_to_get_account_info() {
 	let tester = setup(None);
 	tester.accounts.new_account("").unwrap();
-	let accounts = tester.accounts.accounts();
+	let accounts = tester.accounts.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	let address = accounts[0];
 
@@ -140,7 +140,7 @@ fn should_be_able_to_get_account_info() {
 fn should_be_able_to_set_name() {
 	let tester = setup(None);
 	tester.accounts.new_account("").unwrap();
-	let accounts = tester.accounts.accounts();
+	let accounts = tester.accounts.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	let address = accounts[0];
 
@@ -161,7 +161,7 @@ fn should_be_able_to_set_name() {
 fn should_be_able_to_set_meta() {
 	let tester = setup(None);
 	tester.accounts.new_account("").unwrap();
-	let accounts = tester.accounts.accounts();
+	let accounts = tester.accounts.accounts().unwrap();
 	assert_eq!(accounts.len(), 1);
 	let address = accounts[0];
 

rpc/src/v1/tests/mocked/personal_signer.rs

@@ -23,7 +23,7 @@ use ethcore::client::TestBlockChainClient;
 use ethcore::transaction::{Transaction, Action};
 use v1::{SignerClient, PersonalSigner};
 use v1::tests::helpers::TestMinerService;
-use v1::helpers::{SigningQueue, ConfirmationsQueue, TransactionRequest};
+use v1::helpers::{SigningQueue, ConfirmationsQueue, FilledTransactionRequest, ConfirmationPayload};
 
 struct PersonalSignerTester {
 	queue: Arc<ConfirmationsQueue>,
@@ -68,22 +68,28 @@ fn signer_tester() -> PersonalSignerTester {
 
 
 #[test]
-fn should_return_list_of_transactions_in_queue() {
+fn should_return_list_of_items_to_confirm() {
 	// given
 	let tester = signer_tester();
-	tester.queue.add_request(TransactionRequest {
+	tester.queue.add_request(ConfirmationPayload::Transaction(FilledTransactionRequest {
 		from: Address::from(1),
 		to: Some(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
-		gas_price: Some(U256::from(10_000)),
+		gas_price: U256::from(10_000),
-		gas: Some(U256::from(10_000_000)),
+		gas: U256::from(10_000_000),
-		value: Some(U256::from(1)),
+		value: U256::from(1),
-		data: None,
+		data: vec![],
 		nonce: None,
-	});
+	}));
+	tester.queue.add_request(ConfirmationPayload::Sign(1.into(), 5.into()));
 
 	// when
-	let request = r#"{"jsonrpc":"2.0","method":"personal_transactionsToConfirm","params":[],"id":1}"#;
+	let request = r#"{"jsonrpc":"2.0","method":"personal_requestsToConfirm","params":[],"id":1}"#;
-	let response = r#"{"jsonrpc":"2.0","result":[{"id":"0x01","transaction":{"data":null,"from":"0x0000000000000000000000000000000000000001","gas":"0x989680","gasPrice":"0x2710","nonce":null,"to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","value":"0x01"}}],"id":1}"#;
+	let response = concat!(
+		r#"{"jsonrpc":"2.0","result":["#,
+		r#"{"id":"0x01","payload":{"transaction":{"data":"0x","from":"0x0000000000000000000000000000000000000001","gas":"0x989680","gasPrice":"0x2710","nonce":null,"to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","value":"0x01"}}},"#,
+		r#"{"id":"0x02","payload":{"sign":{"address":"0x0000000000000000000000000000000000000001","hash":"0x0000000000000000000000000000000000000000000000000000000000000005"}}}"#,
+		r#"],"id":1}"#
+	);
 
 	// then
 	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
@@ -94,19 +100,19 @@ fn should_return_list_of_transactions_in_queue() {
 fn should_reject_transaction_from_queue_without_dispatching() {
 	// given
 	let tester = signer_tester();
-	tester.queue.add_request(TransactionRequest {
+	tester.queue.add_request(ConfirmationPayload::Transaction(FilledTransactionRequest {
 		from: Address::from(1),
 		to: Some(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
-		gas_price: Some(U256::from(10_000)),
+		gas_price: U256::from(10_000),
-		gas: Some(U256::from(10_000_000)),
+		gas: U256::from(10_000_000),
-		value: Some(U256::from(1)),
+		value: U256::from(1),
-		data: None,
+		data: vec![],
 		nonce: None,
-	});
+	}));
 	assert_eq!(tester.queue.requests().len(), 1);
 
 	// when
-	let request = r#"{"jsonrpc":"2.0","method":"personal_rejectTransaction","params":["0x01"],"id":1}"#;
+	let request = r#"{"jsonrpc":"2.0","method":"personal_rejectRequest","params":["0x01"],"id":1}"#;
 	let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
 
 	// then
@@ -119,19 +125,35 @@ fn should_reject_transaction_from_queue_without_dispatching() {
 fn should_not_remove_transaction_if_password_is_invalid() {
 	// given
 	let tester = signer_tester();
-	tester.queue.add_request(TransactionRequest {
+	tester.queue.add_request(ConfirmationPayload::Transaction(FilledTransactionRequest {
 		from: Address::from(1),
 		to: Some(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
-		gas_price: Some(U256::from(10_000)),
+		gas_price: U256::from(10_000),
-		gas: Some(U256::from(10_000_000)),
+		gas: U256::from(10_000_000),
-		value: Some(U256::from(1)),
+		value: U256::from(1),
-		data: None,
+		data: vec![],
 		nonce: None,
-	});
+	}));
 	assert_eq!(tester.queue.requests().len(), 1);
 
 	// when
-	let request = r#"{"jsonrpc":"2.0","method":"personal_confirmTransaction","params":["0x01",{},"xxx"],"id":1}"#;
+	let request = r#"{"jsonrpc":"2.0","method":"personal_confirmRequest","params":["0x01",{},"xxx"],"id":1}"#;
+	let response = r#"{"jsonrpc":"2.0","error":{"code":-32021,"message":"Account password is invalid or account does not exist.","data":"SStore(InvalidAccount)"},"id":1}"#;
+
+	// then
+	assert_eq!(tester.io.handle_request(&request), Some(response.to_owned()));
+	assert_eq!(tester.queue.requests().len(), 1);
+}
+
+#[test]
+fn should_not_remove_sign_if_password_is_invalid() {
+	// given
+	let tester = signer_tester();
+	tester.queue.add_request(ConfirmationPayload::Sign(0.into(), 5.into()));
+	assert_eq!(tester.queue.requests().len(), 1);
+
+	// when
+	let request = r#"{"jsonrpc":"2.0","method":"personal_confirmRequest","params":["0x01",{},"xxx"],"id":1}"#;
 	let response = r#"{"jsonrpc":"2.0","error":{"code":-32021,"message":"Account password is invalid or account does not exist.","data":"SStore(InvalidAccount)"},"id":1}"#;
 
 	// then
@@ -145,15 +167,15 @@ fn should_confirm_transaction_and_dispatch() {
 	let tester = signer_tester();
 	let address = tester.accounts.new_account("test").unwrap();
 	let recipient = Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap();
-	tester.queue.add_request(TransactionRequest {
+	tester.queue.add_request(ConfirmationPayload::Transaction(FilledTransactionRequest {
 		from: address,
 		to: Some(recipient),
-		gas_price: Some(U256::from(10_000)),
+		gas_price: U256::from(10_000),
-		gas: Some(U256::from(10_000_000)),
+		gas: U256::from(10_000_000),
-		value: Some(U256::from(1)),
+		value: U256::from(1),
-		data: None,
+		data: vec![],
 		nonce: None,
-	});
+	}));
 
 	let t = Transaction {
 		nonce: U256::zero(),
@@ -172,7 +194,7 @@ fn should_confirm_transaction_and_dispatch() {
 	// when
 	let request = r#"{
 		"jsonrpc":"2.0",
-		"method":"personal_confirmTransaction",
+		"method":"personal_confirmRequest",
 		"params":["0x01", {"gasPrice":"0x1000"}, "test"],
 		"id":1
 	}"#;

rpc/src/v1/traits/eth.rs

@@ -206,6 +206,10 @@ pub trait EthSigning: Sized + Send + Sync + 'static {
 	/// Signs the data with given address signature.
 	fn sign(&self, _: Params) -> Result<Value, Error>;
 
+	/// Posts sign request asynchronously.
+	/// Will return a confirmation ID for later use with check_transaction.
+	fn post_sign(&self, _: Params) -> Result<Value, Error>;
+
 	/// Sends transaction; will block for 20s to try to return the
 	/// transaction hash.
 	/// If it cannot yet be signed, it will return a transaction ID for
@@ -226,6 +230,7 @@ pub trait EthSigning: Sized + Send + Sync + 'static {
 	fn to_delegate(self) -> IoDelegate<Self> {
 		let mut delegate = IoDelegate::new(Arc::new(self));
 		delegate.add_method("eth_sign", EthSigning::sign);
+		delegate.add_method("eth_postSign", EthSigning::post_sign);
 		delegate.add_method("eth_sendTransaction", EthSigning::send_transaction);
 		delegate.add_method("eth_postTransaction", EthSigning::post_transaction);
 		delegate.add_method("eth_checkTransaction", EthSigning::check_transaction);

rpc/src/v1/traits/personal.rs

@@ -61,24 +61,24 @@ pub trait Personal: Sized + Send + Sync + 'static {
 	}
 }
 
-/// Personal extension for transactions confirmations rpc interface.
+/// Personal extension for confirmations rpc interface.
 pub trait PersonalSigner: Sized + Send + Sync + 'static {
 
-	/// Returns a list of transactions to confirm.
+	/// Returns a list of items to confirm.
-	fn transactions_to_confirm(&self, _: Params) -> Result<Value, Error>;
+	fn requests_to_confirm(&self, _: Params) -> Result<Value, Error>;
 
-	/// Confirm and send a specific transaction.
+	/// Confirm specific request.
-	fn confirm_transaction(&self, _: Params) -> Result<Value, Error>;
+	fn confirm_request(&self, _: Params) -> Result<Value, Error>;
 
-	/// Reject the transaction request.
+	/// Reject the confirmation request.
-	fn reject_transaction(&self, _: Params) -> Result<Value, Error>;
+	fn reject_request(&self, _: Params) -> Result<Value, Error>;
 
 	/// Should be used to convert object to io delegate.
 	fn to_delegate(self) -> IoDelegate<Self> {
 		let mut delegate = IoDelegate::new(Arc::new(self));
-		delegate.add_method("personal_transactionsToConfirm", PersonalSigner::transactions_to_confirm);
+		delegate.add_method("personal_requestsToConfirm", PersonalSigner::requests_to_confirm);
-		delegate.add_method("personal_confirmTransaction", PersonalSigner::confirm_transaction);
+		delegate.add_method("personal_confirmRequest", PersonalSigner::confirm_request);
-		delegate.add_method("personal_rejectTransaction", PersonalSigner::reject_transaction);
+		delegate.add_method("personal_rejectRequest", PersonalSigner::reject_request);
 		delegate
 	}
 }

rpc/src/v1/types/confirmations.rs

@@ -0,0 +1,150 @@
+// 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/>.
+
+//! Types used in Confirmations queue (Trusted Signer)
+
+use v1::types::{U256, TransactionRequest, H160, H256};
+use v1::helpers;
+
+
+/// Confirmation waiting in a queue
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize)]
+pub struct ConfirmationRequest {
+	/// Id of this confirmation
+	pub id: U256,
+	/// Payload
+	pub payload: ConfirmationPayload,
+}
+
+impl From<helpers::ConfirmationRequest> for ConfirmationRequest {
+	fn from(c: helpers::ConfirmationRequest) -> Self {
+		ConfirmationRequest {
+			id: c.id.into(),
+			payload: c.payload.into(),
+		}
+	}
+}
+
+/// Sign request
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize)]
+pub struct SignRequest {
+	/// Address
+	pub address: H160,
+	/// Hash to sign
+	pub hash: H256,
+}
+
+/// Confirmation payload, i.e. the thing to be confirmed
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize)]
+pub enum ConfirmationPayload {
+	/// Transaction
+	#[serde(rename="transaction")]
+	Transaction(TransactionRequest),
+	/// Signature
+	#[serde(rename="sign")]
+	Sign(SignRequest),
+}
+
+impl From<helpers::ConfirmationPayload> for ConfirmationPayload {
+	fn from(c: helpers::ConfirmationPayload) -> Self {
+		match c {
+			helpers::ConfirmationPayload::Transaction(t) => ConfirmationPayload::Transaction(t.into()),
+			helpers::ConfirmationPayload::Sign(address, hash) => ConfirmationPayload::Sign(SignRequest {
+				address: address.into(),
+				hash: hash.into(),
+			}),
+		}
+	}
+}
+
+/// Possible modifications to the confirmed transaction sent by `Trusted Signer`
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct TransactionModification {
+	/// Modified gas price
+	#[serde(rename="gasPrice")]
+	pub gas_price: Option<U256>,
+}
+
+#[cfg(test)]
+mod tests {
+	use std::str::FromStr;
+	use serde_json;
+	use v1::types::U256;
+	use v1::helpers;
+	use super::*;
+
+	#[test]
+	fn should_serialize_sign_confirmation() {
+		// given
+		let request = helpers::ConfirmationRequest {
+			id: 15.into(),
+			payload: helpers::ConfirmationPayload::Sign(1.into(), 5.into()),
+		};
+
+		// when
+		let res = serde_json::to_string(&ConfirmationRequest::from(request));
+		let expected = r#"{"id":"0x0f","payload":{"sign":{"address":"0x0000000000000000000000000000000000000001","hash":"0x0000000000000000000000000000000000000000000000000000000000000005"}}}"#;
+
+		// then
+		assert_eq!(res.unwrap(), expected.to_owned());
+	}
+
+	#[test]
+	fn should_serialize_transaction_confirmation() {
+		// given
+		let request = helpers::ConfirmationRequest {
+			id: 15.into(),
+			payload: helpers::ConfirmationPayload::Transaction(helpers::FilledTransactionRequest {
+				from: 0.into(),
+				to: None,
+				gas: 15_000.into(),
+				gas_price: 10_000.into(),
+				value: 100_000.into(),
+				data: vec![1, 2, 3],
+				nonce: Some(1.into()),
+			}),
+		};
+
+		// when
+		let res = serde_json::to_string(&ConfirmationRequest::from(request));
+		let expected = r#"{"id":"0x0f","payload":{"transaction":{"from":"0x0000000000000000000000000000000000000000","to":null,"gasPrice":"0x2710","gas":"0x3a98","value":"0x0186a0","data":"0x010203","nonce":"0x01"}}}"#;
+
+		// then
+		assert_eq!(res.unwrap(), expected.to_owned());
+	}
+
+	#[test]
+	fn should_deserialize_modification() {
+		// given
+		let s1 = r#"{
+			"gasPrice":"0x0ba43b7400"
+		}"#;
+		let s2 = r#"{}"#;
+
+		// when
+		let res1: TransactionModification = serde_json::from_str(s1).unwrap();
+		let res2: TransactionModification = serde_json::from_str(s2).unwrap();
+
+		// then
+		assert_eq!(res1, TransactionModification {
+			gas_price: Some(U256::from_str("0ba43b7400").unwrap()),
+		});
+		assert_eq!(res2, TransactionModification {
+			gas_price: None,
+		});
+	}
+}
+

rpc/src/v1/types/mod.rs.in

@@ -17,6 +17,8 @@
 mod bytes;
 mod block;
 mod block_number;
+mod call_request;
+mod confirmations;
 mod filter;
 mod hash;
 mod index;
@@ -24,7 +26,6 @@ mod log;
 mod sync;
 mod transaction;
 mod transaction_request;
-mod call_request;
 mod receipt;
 mod trace;
 mod trace_filter;
@@ -33,14 +34,15 @@ mod uint;
 pub use self::bytes::Bytes;
 pub use self::block::{Block, BlockTransactions};
 pub use self::block_number::BlockNumber;
+pub use self::call_request::CallRequest;
+pub use self::confirmations::{ConfirmationPayload, ConfirmationRequest, TransactionModification};
 pub use self::filter::Filter;
 pub use self::hash::{H64, H160, H256, H520, H2048};
 pub use self::index::Index;
 pub use self::log::Log;
 pub use self::sync::{SyncStatus, SyncInfo};
 pub use self::transaction::Transaction;
-pub use self::transaction_request::{TransactionRequest, TransactionConfirmation, TransactionModification};
+pub use self::transaction_request::TransactionRequest;
-pub use self::call_request::CallRequest;
 pub use self::receipt::Receipt;
 pub use self::trace::{LocalizedTrace, TraceResults};
 pub use self::trace_filter::TraceFilter;

rpc/src/v1/types/transaction_request.rs

@@ -17,7 +17,7 @@
 //! `TransactionRequest` type
 
 use v1::types::{Bytes, H160, U256};
-use v1::helpers::{TransactionRequest as Request, TransactionConfirmation as Confirmation};
+use v1::helpers;
 
 /// Transaction request coming from RPC
 #[derive(Debug, Clone, Default, Eq, PartialEq, Hash, Serialize, Deserialize)]
@@ -39,8 +39,8 @@ pub struct TransactionRequest {
 	pub nonce: Option<U256>,
 }
 
-impl From<Request> for TransactionRequest {
+impl From<helpers::TransactionRequest> for TransactionRequest {
-	fn from(r: Request) -> Self {
+	fn from(r: helpers::TransactionRequest) -> Self {
 		TransactionRequest {
 			from: r.from.into(),
 			to: r.to.map(Into::into),
@@ -53,9 +53,23 @@ impl From<Request> for TransactionRequest {
 	}
 }
 
-impl Into<Request> for TransactionRequest {
+impl From<helpers::FilledTransactionRequest> for TransactionRequest {
-	fn into(self) -> Request {
+	fn from(r: helpers::FilledTransactionRequest) -> Self {
-		Request {
+		TransactionRequest {
+			from: r.from.into(),
+			to: r.to.map(Into::into),
+			gas_price: Some(r.gas_price.into()),
+			gas: Some(r.gas.into()),
+			value: Some(r.value.into()),
+			data: Some(r.data.into()),
+			nonce: r.nonce.map(Into::into),
+		}
+	}
+}
+
+impl Into<helpers::TransactionRequest> for TransactionRequest {
+	fn into(self) -> helpers::TransactionRequest {
+		helpers::TransactionRequest {
 			from: self.from.into(),
 			to: self.to.map(Into::into),
 			gas_price: self.gas_price.map(Into::into),
@@ -67,32 +81,6 @@ impl Into<Request> for TransactionRequest {
 	}
 }
 
-/// Transaction confirmation waiting in a queue
-#[derive(Debug, Clone, Default, Eq, PartialEq, Hash, Serialize)]
-pub struct TransactionConfirmation {
-	/// Id of this confirmation
-	pub id: U256,
-	/// TransactionRequest
-	pub transaction: TransactionRequest,
-}
-
-impl From<Confirmation> for TransactionConfirmation {
-	fn from(c: Confirmation) -> Self {
-		TransactionConfirmation {
-			id: c.id.into(),
-			transaction: c.transaction.into(),
-		}
-	}
-}
-
-/// Possible modifications to the confirmed transaction sent by `SignerUI`
-#[derive(Debug, PartialEq, Deserialize)]
-pub struct TransactionModification {
-	/// Modified gas price
-	#[serde(rename="gasPrice")]
-	pub gas_price: Option<U256>,
-}
-
 
 #[cfg(test)]
 mod tests {
@@ -188,7 +176,6 @@ mod tests {
 		});
 	}
 
-
 	#[test]
 	fn transaction_request_deserialize_error() {
 		let s = r#"{
@@ -203,26 +190,5 @@ mod tests {
 
 		assert!(deserialized.is_err(), "Should be error because to is empty");
 	}
-
-	#[test]
-	fn should_deserialize_modification() {
-		// given
-		let s1 = r#"{
-			"gasPrice":"0x0ba43b7400"
-		}"#;
-		let s2 = r#"{}"#;
-
-		// when
-		let res1: TransactionModification = serde_json::from_str(s1).unwrap();
-		let res2: TransactionModification = serde_json::from_str(s2).unwrap();
-
-		// then
-		assert_eq!(res1, TransactionModification {
-			gas_price: Some(U256::from_str("0ba43b7400").unwrap()),
-		});
-		assert_eq!(res2, TransactionModification {
-			gas_price: None,
-		});
-	}
 }
 

scripts/targets.sh

@@ -12,4 +12,6 @@ export TARGETS="
 	-p ethstore \
 	-p ethsync \
 	-p ethcore-ipc \
+	-p ethcore-ipc-tests \
+	-p ethcore-ipc-nano \
 	-p parity"

signer/src/ws_server/mod.rs

@@ -53,6 +53,7 @@ pub struct ServerBuilder {
 	queue: Arc<ConfirmationsQueue>,
 	handler: Arc<IoHandler>,
 	authcodes_path: PathBuf,
+	skip_origin_validation: bool,
 }
 
 impl Extendable for ServerBuilder {
@@ -68,13 +69,21 @@ impl ServerBuilder {
 			queue: queue,
 			handler: Arc::new(IoHandler::new()),
 			authcodes_path: authcodes_path,
+			skip_origin_validation: false,
 		}
 	}
 
+	/// If set to `true` server will not verify Origin of incoming requests.
+	/// Not recommended. Use only for development.
+	pub fn skip_origin_validation(mut self, skip: bool) -> Self {
+		self.skip_origin_validation = skip;
+		self
+	}
+
 	/// Starts a new `WebSocket` server in separate thread.
 	/// Returns a `Server` handle which closes the server when droped.
 	pub fn start(self, addr: SocketAddr) -> Result<Server, ServerError> {
-		Server::start(addr, self.handler, self.queue, self.authcodes_path)
+		Server::start(addr, self.handler, self.queue, self.authcodes_path, self.skip_origin_validation)
 	}
 }
 
@@ -89,10 +98,10 @@ pub struct Server {
 impl Server {
 	/// Starts a new `WebSocket` server in separate thread.
 	/// Returns a `Server` handle which closes the server when droped.
-	fn start(addr: SocketAddr, handler: Arc<IoHandler>, queue: Arc<ConfirmationsQueue>, authcodes_path: PathBuf) -> Result<Server, ServerError> {
+	fn start(addr: SocketAddr, handler: Arc<IoHandler>, queue: Arc<ConfirmationsQueue>, authcodes_path: PathBuf, skip_origin_validation: bool) -> Result<Server, ServerError> {
 		let config = {
 			let mut config = ws::Settings::default();
-			// It's also used for handling min-sysui requests (browser can make many of them in paralel)
+			// accept only handshakes beginning with GET
 			config.method_strict = true;
 			// Was shutting down server when suspending on linux:
 			config.shutdown_on_interrupt = false;
@@ -101,7 +110,9 @@ impl Server {
 
 		// Create WebSocket
 		let origin = format!("{}", addr);
-		let ws = try!(ws::Builder::new().with_settings(config).build(session::Factory::new(handler, origin, authcodes_path)));
+		let ws = try!(ws::Builder::new().with_settings(config).build(
+			session::Factory::new(handler, origin, authcodes_path, skip_origin_validation)
+		));
 
 		let panic_handler = PanicHandler::new_in_arc();
 		let ph = panic_handler.clone();