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integrate dispute finality (#3484)

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* finality_target adjustments

* fn finality_target

* partially address review comments

* fixins

* more rustic if condition

* fix tests

* fixins

* Update node/core/approval-voting/src/lib.rs

Co-authored-by: Andronik Ordian <write@reusable.software>

* Update node/core/approval-voting/src/lib.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* review comments part one

* rename candidates -> block_descriptions

* testing outline (incomplete, WIP)

* test foo

* split RelayChainSelection into RelayChainSelection{,WithFallback}, introduce HeaderProvider{,Provider}

* make some stuff public (revert this soon™)

* some test improvements

* slips of pens

* test fixins

* add another trait abstraction

* pending edge case tests + warnings fixes

* more test cases

* fin

* chore fmt

* fix cargo.lock

* Undo obsolete changes

* // comments

* make mod pub(crate)

* fix

* minimize static bounds

* resolve number() as before

* fmt

* post merge fix

* address some nits

Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
This commit is contained in:
Bernhard Schuster
2021-07-26 11:54:50 -04:00
committed by GitHub
parent bd9b743872
commit 6519ba987c
11 changed files with 1090 additions and 100 deletions
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polkadot/node/service/src/grandpa_support.rs
+8 -7
View File
@@ -18,23 +18,24 @@
use std::sync::Arc;
use sp_runtime::traits::{Block as BlockT, NumberFor};
use sp_runtime::generic::BlockId;
use sp_runtime::traits::Header as _;
use sp_runtime::traits::{Block as BlockT, NumberFor};
use crate::HeaderProvider;
#[cfg(feature = "full-node")]
use polkadot_primitives::v1::Hash;
/// Returns the block hash of the block at the given `target_number` by walking
/// backwards from the given `current_header`.
pub(super) fn walk_backwards_to_target_block<Block, B>(
backend: &B,
pub(super) fn walk_backwards_to_target_block<Block, HP>(
backend: &HP,
target_number: NumberFor<Block>,
current_header: &Block::Header,
) -> Result<(Block::Hash, NumberFor<Block>), sp_blockchain::Error>
where
Block: BlockT,
B: sp_blockchain::HeaderBackend<Block>,
HP: HeaderProvider<Block>,
{
let mut target_hash = current_header.hash();
let mut target_header = current_header.clone();
@@ -54,7 +55,7 @@ where
target_hash = *target_header.parent_hash();
target_header = backend
.header(BlockId::Hash(target_hash))?
.header(target_hash)?
.expect("Header known to exist due to the existence of one of its descendants; qed");
}
}
@@ -69,7 +70,7 @@ pub(crate) struct PauseAfterBlockFor<N>(pub(crate) N, pub(crate) N);
impl<Block, B> grandpa::VotingRule<Block, B> for PauseAfterBlockFor<NumberFor<Block>>
where
Block: BlockT,
B: sp_blockchain::HeaderBackend<Block>,
B: sp_blockchain::HeaderBackend<Block> + 'static,
{
fn restrict_vote(
&self,