openethereum/src/ethash.rs

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use common::*;
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use block::*;
use spec::*;
use engine::*;
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/// Engine using Ethash proof-of-work consensus algorithm, suitable for Ethereum
/// mainnet chains in the Olympic, Frontier and Homestead eras.
pub struct Ethash {
spec: Spec,
}
impl Ethash {
pub fn new_boxed(spec: Spec) -> Box<Engine> {
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Box::new(Ethash{spec: spec})
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}
}
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impl Engine for Ethash {
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fn name(&self) -> &str { "Ethash" }
fn spec(&self) -> &Spec { &self.spec }
fn evm_schedule(&self, _env_info: &EnvInfo) -> EvmSchedule { EvmSchedule::new_frontier() }
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/// Apply the block reward on finalisation of the block.
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fn on_close_block(&self, block: &mut Block) {
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let a = block.header().author.clone();
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block.state_mut().add_balance(&a, &decode(&self.spec().engine_params.get("block_reward").unwrap()));
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}
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}
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// TODO: test for on_close_block.
#[test]
fn playpen() {
use util::sha3::*;
use util::overlaydb::*;
let engine = Spec::new_morden().to_engine().unwrap();
let genesis_header = engine.spec().genesis_header();
let mut db = OverlayDB::new_temp();
engine.spec().ensure_db_good(&mut db);
let b = OpenBlock::new(engine.deref(), db, &genesis_header, vec![genesis_header.hash()]);
}