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Store states efficiently in the hot database (#746)

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* Sparse hot DB and block root tree

* Fix store_tests

* Ensure loads of hot states on boundaries are fast

* Milder error for unaligned finalized blocks
This commit is contained in:
Michael Sproul
2020-01-08 13:58:01 +11:00
committed by GitHub
parent 26dde26c48
commit f36a5a15d6
18 changed files with 953 additions and 226 deletions
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7
beacon_node/store/src/iter.rs
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@@ -120,7 +120,7 @@ impl<'a, E: EthSpec, S: Store<E>> ParentRootBlockIterator<'a, E, S> {
}
impl<'a, E: EthSpec, S: Store<E>> Iterator for ParentRootBlockIterator<'a, E, S> {
type Item = BeaconBlock<E>;
type Item = (Hash256, BeaconBlock<E>);
fn next(&mut self) -> Option<Self::Item> {
// Stop once we reach the zero parent, otherwise we'll keep returning the genesis
@@ -128,9 +128,10 @@ impl<'a, E: EthSpec, S: Store<E>> Iterator for ParentRootBlockIterator<'a, E, S>
if self.next_block_root.is_zero() {
None
} else {
let block: BeaconBlock<E> = self.store.get(&self.next_block_root).ok()??;
let block_root = self.next_block_root;
let block: BeaconBlock<E> = self.store.get(&block_root).ok()??;
self.next_block_root = block.parent_root;
Some(block)
Some((block_root, block))
}
}
}