openethereum/ethcore/src/spec/seal.rs
Niklas Adolfsson 98b7c07171 Update license header and scripts (#8666)
* Update `add_license` script

* run script

* add `remove duplicate lines script` and run it

* Revert changes `English spaces`

* strip whitespaces

* Revert `GPL` in files with `apache/mit license`

* don't append `gpl license` in files with other lic

* Don't append `gpl header` in files with other lic.

* re-ran script

* include c and cpp files too

* remove duplicate header

* rebase nit
2018-06-04 10:19:50 +02:00

121 lines
3.0 KiB
Rust

// Copyright 2015-2018 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/>.
//! Spec seal.
use rlp::RlpStream;
use ethereum_types::{H64, H256, H520};
use ethjson;
/// Classic ethereum seal.
pub struct Ethereum {
/// Seal nonce.
pub nonce: H64,
/// Seal mix hash.
pub mix_hash: H256,
}
impl Into<Generic> for Ethereum {
fn into(self) -> Generic {
let mut s = RlpStream::new_list(2);
s.append(&self.mix_hash).append(&self.nonce);
Generic(s.out())
}
}
/// AuthorityRound seal.
pub struct AuthorityRound {
/// Seal step.
pub step: usize,
/// Seal signature.
pub signature: H520,
}
/// Tendermint seal.
pub struct Tendermint {
/// Seal round.
pub round: usize,
/// Proposal seal signature.
pub proposal: H520,
/// Precommit seal signatures.
pub precommits: Vec<H520>,
}
impl Into<Generic> for AuthorityRound {
fn into(self) -> Generic {
let mut s = RlpStream::new_list(2);
s.append(&self.step).append(&self.signature);
Generic(s.out())
}
}
impl Into<Generic> for Tendermint {
fn into(self) -> Generic {
let mut stream = RlpStream::new_list(3);
stream
.append(&self.round)
.append(&self.proposal)
.append_list(&self.precommits);
Generic(stream.out())
}
}
pub struct Generic(pub Vec<u8>);
/// Genesis seal type.
pub enum Seal {
/// Classic ethereum seal.
Ethereum(Ethereum),
/// AuthorityRound seal.
AuthorityRound(AuthorityRound),
/// Tendermint seal.
Tendermint(Tendermint),
/// Generic RLP seal.
Generic(Generic),
}
impl From<ethjson::spec::Seal> for Seal {
fn from(s: ethjson::spec::Seal) -> Self {
match s {
ethjson::spec::Seal::Ethereum(eth) => Seal::Ethereum(Ethereum {
nonce: eth.nonce.into(),
mix_hash: eth.mix_hash.into()
}),
ethjson::spec::Seal::AuthorityRound(ar) => Seal::AuthorityRound(AuthorityRound {
step: ar.step.into(),
signature: ar.signature.into()
}),
ethjson::spec::Seal::Tendermint(tender) => Seal::Tendermint(Tendermint {
round: tender.round.into(),
proposal: tender.proposal.into(),
precommits: tender.precommits.into_iter().map(Into::into).collect()
}),
ethjson::spec::Seal::Generic(g) => Seal::Generic(Generic(g.into())),
}
}
}
impl Into<Generic> for Seal {
fn into(self) -> Generic {
match self {
Seal::Generic(generic) => generic,
Seal::Ethereum(eth) => eth.into(),
Seal::AuthorityRound(ar) => ar.into(),
Seal::Tendermint(tender) => tender.into(),
}
}
}