add new engine to spec

ethcore/res/authority_round.json

@@ -0,0 +1,39 @@
+{
+	"name": "TestAuthorityRound",
+	"engine": {
+		"BasicAuthority": {
+			"params": {
+				"gasLimitBoundDivisor": "0x0400",
+				"stepDuration": "0x0d",
+				"authorities" : ["0x9cce34f7ab185c7aba1b7c8140d620b4bda941d6"]
+			}
+		}
+	},
+	"params": {
+		"accountStartNonce": "0x0100000",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x69"
+	},
+	"genesis": {
+		"seal": {
+			"generic": {
+				"fields": 1,
+				"rlp": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa"
+			}
+		},
+		"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 } } } },
+		"9cce34f7ab185c7aba1b7c8140d620b4bda941d6": { "balance": "1606938044258990275541962092341162602522202993782792835301376", "nonce": "1048576" }
+	}
+}

ethcore/res/basic_authority.json

@@ -1,5 +1,5 @@
 {
-	"name": "TestAuthority",
+	"name": "TestBasicAuthority",
 	"engine": {
 		"BasicAuthority": {
 			"params": {

ethcore/src/engines/authority_round.rs

@@ -240,7 +240,7 @@ impl Header {
 #[cfg(test)]
 mod tests {
 	use common::*;
-	use rlp::{UntrustedRlp, View, encode, decode};
+	use rlp::encode;
 	use block::*;
 	use tests::helpers::*;
 	use account_provider::AccountProvider;

ethcore/src/engines/basic_authority.rs

@@ -171,13 +171,6 @@ impl Engine for BasicAuthority {
 	}
 }
 
-impl Header {
-	/// Get the none field of the header.
-	pub fn signature(&self) -> H520 {
-		::rlp::decode(&self.seal()[0])
-	}
-}
-
 #[cfg(test)]
 mod tests {
 	use common::*;

ethcore/src/spec/spec.rs

@@ -17,7 +17,7 @@
 //! Parameters for a block chain.
 
 use common::*;
-use engines::{Engine, NullEngine, InstantSeal, BasicAuthority};
+use engines::{Engine, NullEngine, InstantSeal, BasicAuthority, AuthorityRound};
 use pod_state::*;
 use account_db::*;
 use super::genesis::Genesis;
@@ -138,6 +138,7 @@ impl Spec {
 			ethjson::spec::Engine::InstantSeal => Arc::new(InstantSeal::new(params, 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),
 		}
 	}
 

json/src/spec/authority_round.rs

@@ -0,0 +1,59 @@
+// 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/>.
+
+//! Authority params deserialization.
+
+use uint::Uint;
+use hash::Address;
+
+/// Authority params deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct AuthorityRoundParams {
+	/// Gas limit divisor.
+	#[serde(rename="gasLimitBoundDivisor")]
+	pub gas_limit_bound_divisor: Uint,
+	/// Block duration.
+	#[serde(rename="stepDuration")]
+	pub step_duration: Uint,
+	/// Valid authorities
+	pub authorities: Vec<Address>,
+}
+
+/// Authority engine deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct AuthorityRound {
+	/// Ethash params.
+	pub params: AuthorityRoundParams,
+}
+
+#[cfg(test)]
+mod tests {
+	use serde_json;
+	use spec::basic_authority::AuthorityRound;
+
+	#[test]
+	fn basic_authority_deserialization() {
+		let s = r#"{
+			"params": {
+				"gasLimitBoundDivisor": "0x0400",
+				"stepDuration": "0x02",
+				"authorities" : ["0xc6d9d2cd449a754c494264e1809c50e34d64562b"]
+			}
+		}"#;
+
+		let _deserialized: AuthorityRound = serde_json::from_str(s).unwrap();
+	}
+}

json/src/spec/engine.rs

@@ -18,6 +18,7 @@
 
 use spec::Ethash;
 use spec::BasicAuthority;
+use spec::AuthorityRound;
 
 /// Engine deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
@@ -30,6 +31,8 @@ pub enum Engine {
 	Ethash(Ethash),
 	/// BasicAuthority engine.
 	BasicAuthority(BasicAuthority),
+	/// AuthorityRound engine.
+	AuthorityRound(AuthorityRound),
 }
 
 #[cfg(test)]

json/src/spec/mod.rs

@@ -26,6 +26,7 @@ pub mod engine;
 pub mod state;
 pub mod ethash;
 pub mod basic_authority;
+pub mod authority_round;
 
 pub use self::account::Account;
 pub use self::builtin::{Builtin, Pricing, Linear};
@@ -37,3 +38,4 @@ pub use self::engine::Engine;
 pub use self::state::State;
 pub use self::ethash::{Ethash, EthashParams};
 pub use self::basic_authority::{BasicAuthority, BasicAuthorityParams};
+pub use self::authority_round::{AuthorityRound, AuthorityRoundParams};