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Create db-level alias for genesis block

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Paul Hauner
2019-06-01 12:56:35 +10:00
parent 8831db1e0f
commit c8ba44b0b5
1 changed files with 8 additions and 0 deletions
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8
beacon_node/beacon_chain/src/beacon_chain.rs
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@@ -127,6 +127,14 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let block_root = genesis_block.block_header().canonical_root(); let block_root = genesis_block.block_header().canonical_root();
store.put(&block_root, &genesis_block)?; store.put(&block_root, &genesis_block)?;
// Store the genesis block under the `0x00..00` hash too.
//
// The spec declares that for fork choice, the `ZERO_HASH` should alias to the genesis
// block. See:
//
// github.com/ethereum/eth2.0-specs/blob/dev/specs/core/0_fork-choice.md#implementation-notes
store.put(&spec.zero_hash, &genesis_block)?;
let canonical_head = RwLock::new(CheckPoint::new( let canonical_head = RwLock::new(CheckPoint::new(
genesis_block.clone(), genesis_block.clone(),
block_root, block_root,