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Change the difficulty parameter of PowAlgorithm::difficulty function to Hash (#5417)

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This commit is contained in:
Stanislav Tkach
2020-03-30 17:08:41 +03:00
committed by GitHub
parent c3c8552aaa
commit 0bc0d4bebb
1 changed files with 3 additions and 5 deletions
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substrate/client/consensus/pow/src/lib.rs
+3 -5
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@@ -151,7 +151,7 @@ pub trait PowAlgorithm<B: BlockT> {
///
/// This function will be called twice during the import process, so the implementation
/// should be properly cached.
fn difficulty(&self, parent: &BlockId<B>) -> Result<Self::Difficulty, Error<B>>;
fn difficulty(&self, parent: B::Hash) -> Result<Self::Difficulty, Error<B>>;
/// Verify that the seal is valid against given pre hash when parent block is not yet imported.
///
/// None means that preliminary verify is not available for this algorithm.
@@ -335,7 +335,7 @@ impl<B, I, C, S, Algorithm> BlockImport<B> for PowBlockImport<B, I, C, S, Algori
let difficulty = match intermediate.difficulty {
Some(difficulty) => difficulty,
None => self.algorithm.difficulty(&BlockId::hash(parent_hash))?,
None => self.algorithm.difficulty(parent_hash)?,
};
let pre_hash = block.header.hash();
@@ -617,9 +617,7 @@ fn mine_loop<B: BlockT, C, Algorithm, E, SO, S, CAW>(
let (header, body) = proposal.block.deconstruct();
let (difficulty, seal) = {
let difficulty = algorithm.difficulty(
&BlockId::Hash(best_hash),
)?;
let difficulty = algorithm.difficulty(best_hash)?;
loop {
let seal = algorithm.mine(