Merge pull request #3759 from ethcore/auth-bft

Tendermint Engine

json/src/spec/engine.rs

@@ -19,6 +19,7 @@
 use spec::Ethash;
 use spec::BasicAuthority;
 use spec::AuthorityRound;
+use spec::Tendermint;
 
 /// Engine deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
@@ -33,6 +34,8 @@ pub enum Engine {
 	BasicAuthority(BasicAuthority),
 	/// AuthorityRound engine.
 	AuthorityRound(AuthorityRound),
+	/// Tendermint engine.
+	Tendermint(Tendermint)
 }
 
 #[cfg(test)]

json/src/spec/mod.rs

@@ -27,6 +27,7 @@ pub mod state;
 pub mod ethash;
 pub mod basic_authority;
 pub mod authority_round;
+pub mod tendermint;
 
 pub use self::account::Account;
 pub use self::builtin::{Builtin, Pricing, Linear};
@@ -39,3 +40,4 @@ 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};
+pub use self::tendermint::{Tendermint, TendermintParams};

json/src/spec/tendermint.rs

@@ -0,0 +1,67 @@
+// 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/>.
+
+//! Tendermint params deserialization.
+
+use uint::Uint;
+use hash::Address;
+
+/// Tendermint params deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct TendermintParams {
+	/// Gas limit divisor.
+	#[serde(rename="gasLimitBoundDivisor")]
+	pub gas_limit_bound_divisor: Uint,
+	/// Valid authorities
+	pub authorities: Vec<Address>,
+	/// Propose step timeout in milliseconds.
+	#[serde(rename="timeoutPropose")]
+	pub timeout_propose: Option<Uint>,
+	/// Prevote step timeout in milliseconds.
+	#[serde(rename="timeoutPrevote")]
+	pub timeout_prevote: Option<Uint>,
+	/// Precommit step timeout in milliseconds.
+	#[serde(rename="timeoutPrecommit")]
+	pub timeout_precommit: Option<Uint>,
+	/// Commit step timeout in milliseconds.
+	#[serde(rename="timeoutCommit")]
+	pub timeout_commit: Option<Uint>,
+}
+
+/// Tendermint engine deserialization.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct Tendermint {
+	/// Ethash params.
+	pub params: TendermintParams,
+}
+
+#[cfg(test)]
+mod tests {
+	use serde_json;
+	use spec::tendermint::Tendermint;
+
+	#[test]
+	fn basic_authority_deserialization() {
+		let s = r#"{
+			"params": {
+				"gasLimitBoundDivisor": "0x0400",
+				"authorities" : ["0xc6d9d2cd449a754c494264e1809c50e34d64562b"]
+			}
+		}"#;
+
+		let _deserialized: Tendermint = serde_json::from_str(s).unwrap();
+	}
+}