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header fns, extra_info

This commit is contained in:
keorn 2016-11-15 11:27:09 +00:00
parent d19e8c5505
commit 06e5416537
1 changed files with 21 additions and 7 deletions
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28
ethcore/src/engines/tendermint/mod.rs
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@ -213,6 +213,14 @@ fn block_hash(header: &Header) -> H256 {
header.rlp(Seal::WithSome(1)).sha3()
}
fn proposer_signature(header: &Header) -> H520 {
try!(UntrustedRlp::new(header.seal()[1].as_slice()).as_val())
}
fn consensus_round(header: &Header) -> Round {
try!(UntrustedRlp::new(header.seal()[0].as_slice()).as_val())
}
impl Engine for Tendermint {
fn name(&self) -> &str { "Tendermint" }
fn version(&self) -> SemanticVersion { SemanticVersion::new(1, 0, 0) }
@ -223,7 +231,14 @@ impl Engine for Tendermint {
fn builtins(&self) -> &BTreeMap<Address, Builtin> { &self.builtins }
/// Additional engine-specific information for the user/developer concerning `header`.
fn extra_info(&self, _header: &Header) -> HashMap<String, String> { hash_map!["signature".to_owned() => "TODO".to_owned()] }
fn extra_info(&self, header: &Header) -> BTreeMap<String, String> {
map![
"signature".into() => proposer_signature(header).as_ref().map(ToString::to_string).unwrap_or("".into()),
"height".into() => header.number().to_string(),
"round".into() => consensus_round(header).as_ref().map(ToString::to_string).unwrap_or("".into()),
"block_hash".into() => block_hash(header).as_ref().map(ToString::to_string).unwrap_or("".into())
]
}
fn schedule(&self, _env_info: &EnvInfo) -> Schedule {
Schedule::new_homestead()
@ -253,7 +268,7 @@ impl Engine for Tendermint {
/// This assumes that all uncles are valid uncles (i.e. of at least one generation before the current).
fn on_close_block(&self, block: &mut ExecutedBlock) {
let round = self.round.load(AtomicOrdering::SeqCst);
vec![::rlp::encode(&round).to_vec()]
block.header.set_seal(vec![::rlp::encode(&round).to_vec(), Vec::new(), Vec::new()]);
}
/// Round proposer switching.
@ -272,7 +287,7 @@ impl Engine for Tendermint {
Step::Commit => {
// Commit the block using a complete signature set.
let round = self.round.load(AtomicOrdering::SeqCst);
if let Some((proposer, votes)) = self.votes.seal_signatures(header.number() as Height, round, block_hash(header)).split_first() {
if let Some((proposer, votes)) = self.votes.seal_signatures(header.number() as Height, round, Some(block_hash(header))).split_first() {
if votes.len() + 1 > self.threshold() {
return Some(vec![
::rlp::encode(&round).to_vec(),
@ -337,15 +352,14 @@ impl Engine for Tendermint {
/// Also transitions to Prevote if verifying Proposal.
fn verify_block_unordered(&self, header: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
let proposal_signature: H520 = try!(UntrustedRlp::new(header.seal()[1].as_slice()).as_val());
let proposer = public_to_address(&try!(recover(&proposal_signature.into(), &block_hash(header))));
let proposer = public_to_address(&try!(recover(&proposal_signature(header).into(), &block_hash(header))));
if !self.is_proposer(&proposer) {
try!(Err(BlockError::InvalidSeal))
}
let proposal = ConsensusMessage {
signature: proposal_signature,
height: header.number() as usize,
round: try!(UntrustedRlp::new(header.seal()[0].as_slice()).as_val()),
height: header.number() as Height,
round: consensus_round(header),
step: Step::Propose,
block_hash: Some(block_hash(header))
};