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call into chain WASM to check for changes

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This commit is contained in:
Robert Habermeier
2018-10-28 20:50:31 +01:00
parent 442e300163
commit 55ca13ab09
1 changed files with 15 additions and 12 deletions
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substrate/core/finality-grandpa/src/lib.rs
+15 -12
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@@ -48,7 +48,7 @@ use client::{Client, error::Error as ClientError, ImportNotifications, backend::
use codec::{Encode, Decode};
use consensus_common::{BlockImport, ImportBlock, ImportResult};
use runtime_primitives::traits::{
NumberFor, Block as BlockT, Header as HeaderT, DigestItemFor,
NumberFor, Block as BlockT, Header as HeaderT, DigestFor,
};
use runtime_primitives::generic::BlockId;
use substrate_primitives::{ed25519, AuthorityId, Blake2Hasher};
@@ -434,7 +434,6 @@ impl<Block: BlockT, B, E, N> grandpa::Chain<Block::Hash, NumberFor<Block>> for E
N: Network + 'static,
N::In: 'static,
NumberFor<Block>: BlockNumberOps,
DigestItemFor<Block>: CompatibleDigestItem<NumberFor<Block>>,
{
fn ancestry(&self, base: Block::Hash, block: Block::Hash) -> Result<Vec<Block::Hash>, GrandpaError> {
let tree_route_res = ::client::blockchain::tree_route(
@@ -529,7 +528,6 @@ impl<B, E, Block: BlockT, N> voter::Environment<Block::Hash, NumberFor<Block>> f
N: Network + 'static,
N::In: 'static,
NumberFor<Block>: BlockNumberOps,
DigestItemFor<Block>: CompatibleDigestItem<NumberFor<Block>>,
{
type Timer = Box<Future<Item = (), Error = Self::Error>>;
type Id = AuthorityId;
@@ -686,7 +684,7 @@ pub struct GrandpaBlockImport<B, E, Block: BlockT> {
impl<B, E, Block: BlockT> BlockImport<Block> for GrandpaBlockImport<B, E, Block> where
B: Backend<Block, Blake2Hasher> + 'static,
E: CallExecutor<Block, Blake2Hasher> + 'static + Clone,
DigestItemFor<Block>: CompatibleDigestItem<NumberFor<Block>>,
DigestFor<Block>: Encode,
{
type Error = ClientError;
@@ -696,13 +694,20 @@ impl<B, E, Block: BlockT> BlockImport<Block> for GrandpaBlockImport<B, E, Block>
use runtime_primitives::traits::Digest;
use authorities::PendingChange;
let maybe_event = block.header.digest().logs().iter()
.filter_map(|log| log.scheduled_change())
.next()
.map(|change| (block.header.hash(), *block.header.number(), change));
let maybe_change: Option<ScheduledChange<NumberFor<Block>>> = self.inner.call_api_at(
&BlockId::hash(block.header.parent_hash().clone()),
::fg_primitives::PENDING_CHANGE_CALL,
block.header.digest()
)?;
let maybe_change = maybe_change.map(|change| (
block.header.hash(),
block.header.number().clone(),
change
));
let result = self.inner.import_block(block, new_authorities);
if let (true, Some((hash, number, change))) = (result.is_ok(), maybe_event) {
if let (true, Some((hash, number, change))) = (result.is_ok(), maybe_change) {
self.authority_set.add_pending_change(PendingChange {
next_authorities: change.next_authorities,
finalization_depth: number + change.delay,
@@ -734,7 +739,7 @@ pub fn run_grandpa<B, E, Block: BlockT, N>(
N: Network + 'static,
N::In: 'static,
NumberFor<Block>: BlockNumberOps,
DigestItemFor<Block>: CompatibleDigestItem<NumberFor<Block>>,
DigestFor<Block>: Encode,
{
use futures::future::{self, Loop as FutureLoop};
@@ -826,8 +831,6 @@ mod tests {
use keyring::Keyring;
use client::BlockchainEvents;
impl CompatibleDigestItem<NumberFor<Block>> for DigestItemFor<Block> { }
#[derive(Clone)]
struct TestGrandpaNetwork {
inner: Arc<Mutex<TestNet>>,