Engine backports (#4718)

* custom dev presets

* add registrar field

* use constructor for dev registrar

* fix test

ethcore/src/engines/authority_round.rs

@@ -49,6 +49,8 @@ pub struct AuthorityRoundParams {
 	pub step_duration: Duration,
 	/// Block reward.
 	pub block_reward: U256,
+	/// Namereg contract address.
+	pub registrar: Address,
 	/// Starting step,
 	pub start_step: Option<u64>,
 	/// Valid validators.
@@ -62,6 +64,7 @@ impl From<ethjson::spec::AuthorityRoundParams> for AuthorityRoundParams {
 			step_duration: Duration::from_secs(p.step_duration.into()),
 			validators: p.validators,
 			block_reward: p.block_reward.map_or_else(U256::zero, Into::into),
+			registrar: p.registrar.map_or_else(Address::new, Into::into),
 			start_step: p.start_step.map(Into::into),
 		}
 	}
@@ -73,6 +76,7 @@ pub struct AuthorityRound {
 	params: CommonParams,
 	gas_limit_bound_divisor: U256,
 	block_reward: U256,
+	registrar: Address,
 	step_duration: Duration,
 	builtins: BTreeMap<Address, Builtin>,
 	transition_service: IoService<()>,
@@ -112,6 +116,7 @@ impl AuthorityRound {
 				params: params,
 				gas_limit_bound_divisor: our_params.gas_limit_bound_divisor,
 				block_reward: our_params.block_reward,
+				registrar: our_params.registrar,
 				step_duration: our_params.step_duration,
 				builtins: builtins,
 				transition_service: IoService::<()>::start()?,
@@ -180,11 +185,16 @@ impl IoHandler<()> for TransitionHandler {
 
 impl Engine for AuthorityRound {
 	fn name(&self) -> &str { "AuthorityRound" }
+
 	fn version(&self) -> SemanticVersion { SemanticVersion::new(1, 0, 0) }
+
 	/// Two fields - consensus step and the corresponding proposer signature.
 	fn seal_fields(&self) -> usize { 2 }
 
 	fn params(&self) -> &CommonParams { &self.params }
+
+	fn additional_params(&self) -> HashMap<String, String> { hash_map!["registrar".to_owned() => self.registrar.hex()] }
+
 	fn builtins(&self) -> &BTreeMap<Address, Builtin> { &self.builtins }
 
 	fn step(&self) {

ethcore/src/engines/instant_seal.rs

@@ -15,7 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::collections::BTreeMap;
-use util::Address;
+use util::{Address, HashMap};
 use builtin::Builtin;
 use engines::{Engine, Seal};
 use env_info::EnvInfo;
@@ -26,14 +26,16 @@ use block::ExecutedBlock;
 /// An engine which does not provide any consensus mechanism, just seals blocks internally.
 pub struct InstantSeal {
 	params: CommonParams,
+	registrar: Address,
 	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 {
+	pub fn new(params: CommonParams, registrar: Address, builtins: BTreeMap<Address, Builtin>) -> Self {
 		InstantSeal {
 			params: params,
+			registrar: registrar,
 			builtins: builtins,
 		}
 	}
@@ -48,6 +50,10 @@ impl Engine for InstantSeal {
 		&self.params
 	}
 
+	fn additional_params(&self) -> HashMap<String, String> {
+		hash_map!["registrar".to_owned() => self.registrar.hex()]
+	}
+
 	fn builtins(&self) -> &BTreeMap<Address, Builtin> {
 		&self.builtins
 	}
@@ -76,9 +82,9 @@ mod tests {
 	fn instant_can_seal() {
 		let spec = Spec::new_instant();
 		let engine = &*spec.engine;
-		let genesis_header = spec.genesis_header();
 		let mut db_result = get_temp_state_db();
 		let db = spec.ensure_db_good(db_result.take(), &Default::default()).unwrap();
+		let genesis_header = spec.genesis_header();
 		let last_hashes = Arc::new(vec![genesis_header.hash()]);
 		let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, Address::default(), (3141562.into(), 31415620.into()), vec![]).unwrap();
 		let b = b.close_and_lock();

ethcore/src/engines/tendermint/mod.rs

@@ -86,6 +86,7 @@ pub struct Tendermint {
 	authority: RwLock<Address>,
 	/// Password used for signing messages.
 	password: RwLock<Option<String>>,
+	registrar: Address,
 	/// Blockchain height.
 	height: AtomicUsize,
 	/// Consensus round.
@@ -119,6 +120,7 @@ impl Tendermint {
 				block_reward: our_params.block_reward,
 				authority: RwLock::new(Address::default()),
 				password: RwLock::new(None),
+				registrar: our_params.registrar,
 				height: AtomicUsize::new(1),
 				round: AtomicUsize::new(0),
 				step: RwLock::new(Step::Propose),
@@ -376,14 +378,20 @@ impl Tendermint {
 
 impl Engine for Tendermint {
 	fn name(&self) -> &str { "Tendermint" }
+
 	fn version(&self) -> SemanticVersion { SemanticVersion::new(1, 0, 0) }
+
 	/// (consensus round, proposal signature, authority signatures)
 	fn seal_fields(&self) -> usize { 3 }
 
 	fn params(&self) -> &CommonParams { &self.params }
+
+	fn additional_params(&self) -> HashMap<String, String> { hash_map!["registrar".to_owned() => self.registrar.hex()] }
+
 	fn builtins(&self) -> &BTreeMap<Address, Builtin> { &self.builtins }
 
 	fn maximum_uncle_count(&self) -> usize { 0 }
+
 	fn maximum_uncle_age(&self) -> usize { 0 }
 
 	/// Additional engine-specific information for the user/developer concerning `header`.

ethcore/src/engines/tendermint/params.rs

@@ -18,7 +18,7 @@
 
 use ethjson;
 use super::transition::TendermintTimeouts;
-use util::{U256, Uint};
+use util::{U256, Uint, Address, FixedHash};
 use time::Duration;
 
 /// `Tendermint` params.
@@ -32,6 +32,8 @@ pub struct TendermintParams {
 	pub timeouts: TendermintTimeouts,
 	/// Block reward.
 	pub block_reward: U256,
+	/// Namereg contract address.
+	pub registrar: Address,
 }
 
 fn to_duration(ms: ethjson::uint::Uint) -> Duration {
@@ -52,6 +54,7 @@ impl From<ethjson::spec::TendermintParams> for TendermintParams {
 				commit: p.timeout_commit.map_or(dt.commit, to_duration),
 			},
 			block_reward: p.block_reward.map_or_else(U256::zero, Into::into),
+			registrar: p.registrar.map_or_else(Address::new, Into::into),
 		}
 	}
 }

ethcore/src/spec/spec.rs

@@ -157,7 +157,7 @@ impl Spec {
 	fn engine(engine_spec: ethjson::spec::Engine, params: CommonParams, builtins: BTreeMap<Address, Builtin>) -> Arc<Engine> {
 		match engine_spec {
 			ethjson::spec::Engine::Null => Arc::new(NullEngine::new(params, builtins)),
-			ethjson::spec::Engine::InstantSeal => Arc::new(InstantSeal::new(params, builtins)),
+			ethjson::spec::Engine::InstantSeal(instant) => Arc::new(InstantSeal::new(params, instant.params.registrar.map_or_else(Address::new, Into::into), builtins)),
 			ethjson::spec::Engine::Ethash(ethash) => Arc::new(ethereum::Ethash::new(params, From::from(ethash.params), builtins)),
 			ethjson::spec::Engine::BasicAuthority(basic_authority) => Arc::new(BasicAuthority::new(params, From::from(basic_authority.params), builtins)),
 			ethjson::spec::Engine::AuthorityRound(authority_round) => AuthorityRound::new(params, From::from(authority_round.params), builtins).expect("Failed to start AuthorityRound consensus engine."),

json/src/spec/authority_round.rs

@@ -17,6 +17,7 @@
 //! Authority params deserialization.
 
 use uint::Uint;
+use hash::Address;
 use super::ValidatorSet;
 
 /// Authority params deserialization.
@@ -33,6 +34,8 @@ pub struct AuthorityRoundParams {
 	/// Block reward.
 	#[serde(rename="blockReward")]
 	pub block_reward: Option<Uint>,
+	/// Address of the registrar contract.
+	pub registrar: Option<Address>,
 	/// Starting step. Determined automatically if not specified.
 	/// To be used for testing only.
 	#[serde(rename="startStep")]

json/src/spec/engine.rs

@@ -16,7 +16,7 @@
 
 //! Engine deserialization.
 
-use super::{Ethash, BasicAuthority, AuthorityRound, Tendermint};
+use super::{Ethash, InstantSeal, BasicAuthority, AuthorityRound, Tendermint};
 
 /// Engine deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
@@ -26,7 +26,7 @@ pub enum Engine {
 	Null,
 	/// Instantly sealing engine.
 	#[serde(rename="instantSeal")]
-	InstantSeal,
+	InstantSeal(InstantSeal),
 	/// Ethash engine.
 	Ethash(Ethash),
 	/// BasicAuthority engine.
@@ -55,12 +55,10 @@ mod tests {
 		assert_eq!(Engine::Null, deserialized);
 
 		let s = r#"{
-			"instantSeal": null
+			"instantSeal": { "params": {} }
 		}"#;
 
-		let deserialized: Engine = serde_json::from_str(s).unwrap();
-		assert_eq!(Engine::InstantSeal, deserialized);
-
+		let _deserialized: Engine = serde_json::from_str(s).unwrap();
 
 		let s = r#"{
 			"Ethash": {

json/src/spec/instant_seal.rs

@@ -0,0 +1,50 @@
+// Copyright 2015-2017 Parity Technologies (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/>.
+
+//! Instant params deserialization.
+
+use hash::Address;
+
+/// Instant params deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct InstantSealParams {
+	/// Address of the registrar contract.
+	pub registrar: Option<Address>,
+}
+
+/// Instant engine deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct InstantSeal {
+	/// Instant Seal params.
+	pub params: InstantSealParams,
+}
+
+#[cfg(test)]
+mod tests {
+	use serde_json;
+	use spec::instant_seal::InstantSeal;
+
+	#[test]
+	fn instant_seal_deserialization() {
+		let s = r#"{
+			"params": {
+				"registrar": "0xc6d9d2cd449a754c494264e1809c50e34d64562b"
+			}
+		}"#;
+
+		let _deserialized: InstantSeal = serde_json::from_str(s).unwrap();
+	}
+}

json/src/spec/mod.rs

@@ -26,6 +26,7 @@ pub mod engine;
 pub mod state;
 pub mod ethash;
 pub mod validator_set;
+pub mod instant_seal;
 pub mod basic_authority;
 pub mod authority_round;
 pub mod tendermint;
@@ -40,6 +41,7 @@ pub use self::engine::Engine;
 pub use self::state::State;
 pub use self::ethash::{Ethash, EthashParams};
 pub use self::validator_set::ValidatorSet;
+pub use self::instant_seal::{InstantSeal, InstantSealParams};
 pub use self::basic_authority::{BasicAuthority, BasicAuthorityParams};
 pub use self::authority_round::{AuthorityRound, AuthorityRoundParams};
 pub use self::tendermint::{Tendermint, TendermintParams};

json/src/spec/tendermint.rs

@@ -17,6 +17,7 @@
 //! Tendermint params deserialization.
 
 use uint::Uint;
+use hash::Address;
 use super::ValidatorSet;
 
 /// Tendermint params deserialization.
@@ -42,6 +43,8 @@ pub struct TendermintParams {
 	/// Block reward.
 	#[serde(rename="blockReward")]
 	pub block_reward: Option<Uint>,
+	/// Address of the registrar contract.
+	pub registrar: Option<Address>,
 }
 
 /// Tendermint engine deserialization.

parity/configuration.rs

@@ -33,7 +33,7 @@ use ethcore_rpc::NetworkSettings;
 use cache::CacheConfig;
 use helpers::{to_duration, to_mode, to_block_id, to_u256, to_pending_set, to_price, replace_home, replace_home_for_db,
 geth_ipc_path, parity_ipc_path, to_bootnodes, to_addresses, to_address, to_gas_limit, to_queue_strategy};
-use params::{ResealPolicy, AccountsConfig, GasPricerConfig, MinerExtras};
+use params::{SpecType, ResealPolicy, AccountsConfig, GasPricerConfig, MinerExtras};
 use ethcore_logger::Config as LogConfig;
 use dir::{self, Directories, default_hypervisor_path, default_local_path, default_data_path};
 use dapps::Configuration as DappsConfiguration;
@@ -102,7 +102,6 @@ impl Configuration {
 		let vm_type = self.vm_type()?;
 		let mode = match self.args.flag_mode.as_ref() { "last" => None, mode => Some(to_mode(&mode, self.args.flag_mode_timeout, self.args.flag_mode_alarm)?), };
 		let update_policy = self.update_policy()?;
-		let miner_options = self.miner_options()?;
 		let logger_config = self.logger_config();
 		let http_conf = self.http_config()?;
 		let ipc_conf = self.ipc_config()?;
@@ -307,6 +306,12 @@ impl Configuration {
 
 			let verifier_settings = self.verifier_settings();
 
+			// Special presets are present for the dev chain.
+			let (gas_pricer, miner_options) = match spec {
+				SpecType::Dev => (GasPricerConfig::Fixed(0.into()), self.miner_options(0)?),
+				_ => (self.gas_pricer_config()?, self.miner_options(self.args.flag_reseal_min_period)?),
+			};
+
 			let run_cmd = RunCmd {
 				cache_config: cache_config,
 				dirs: dirs,
@@ -321,7 +326,7 @@ impl Configuration {
 				net_conf: net_conf,
 				network_id: network_id,
 				acc_conf: self.accounts_config()?,
-				gas_pricer: self.gas_pricer_config()?,
+				gas_pricer: gas_pricer,
 				miner_extras: self.miner_extras()?,
 				update_policy: update_policy,
 				mode: mode,
@@ -459,7 +464,7 @@ impl Configuration {
 		Ok(cfg)
 	}
 
-	fn miner_options(&self) -> Result<MinerOptions, String> {
+	fn miner_options(&self, reseal_min_period: u64) -> Result<MinerOptions, String> {
 		let reseal = self.args.flag_reseal_on_txs.parse::<ResealPolicy>()?;
 
 		let options = MinerOptions {
@@ -475,7 +480,7 @@ impl Configuration {
 			tx_queue_gas_limit: to_gas_limit(&self.args.flag_tx_queue_gas)?,
 			tx_queue_strategy: to_queue_strategy(&self.args.flag_tx_queue_strategy)?,
 			pending_set: to_pending_set(&self.args.flag_relay_set)?,
-			reseal_min_period: Duration::from_millis(self.args.flag_reseal_min_period),
+			reseal_min_period: Duration::from_millis(reseal_min_period),
 			work_queue_size: self.args.flag_work_queue_size,
 			enable_resubmission: !self.args.flag_remove_solved,
 			tx_queue_banning: match self.args.flag_tx_time_limit {
@@ -1093,13 +1098,14 @@ mod tests {
 		let conf3 = parse(&["parity", "--tx-queue-strategy", "gas"]);
 
 		// then
-		assert_eq!(conf0.miner_options().unwrap(), mining_options);
+		let min_period = conf0.args.flag_reseal_min_period;
+		assert_eq!(conf0.miner_options(min_period).unwrap(), mining_options);
 		mining_options.tx_queue_strategy = PrioritizationStrategy::GasFactorAndGasPrice;
-		assert_eq!(conf1.miner_options().unwrap(), mining_options);
+		assert_eq!(conf1.miner_options(min_period).unwrap(), mining_options);
 		mining_options.tx_queue_strategy = PrioritizationStrategy::GasPriceOnly;
-		assert_eq!(conf2.miner_options().unwrap(), mining_options);
+		assert_eq!(conf2.miner_options(min_period).unwrap(), mining_options);
 		mining_options.tx_queue_strategy = PrioritizationStrategy::GasAndGasPrice;
-		assert_eq!(conf3.miner_options().unwrap(), mining_options);
+		assert_eq!(conf3.miner_options(min_period).unwrap(), mining_options);
 	}
 
 	#[test]
@@ -1291,4 +1297,17 @@ mod tests {
 		let conf = Configuration::parse(&args).unwrap();
 		assert!(conf.init_reserved_nodes().is_ok());
 	}
+
+	#[test]
+	fn test_dev_chain() {
+		let args = vec!["parity", "--chain", "dev"];
+		let conf = parse(&args);
+		match conf.into_command().unwrap().cmd {
+			Cmd::Run(c) => {
+				assert_eq!(c.gas_pricer, GasPricerConfig::Fixed(0.into()));
+				assert_eq!(c.miner_options.reseal_min_period, Duration::from_millis(0));
+			},
+			_ => panic!("Should be Cmd::Run"),
+		}
+	}
 }