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Check data availability boundary in rpc request

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This commit is contained in:
Emilia Hane
2023-01-17 09:53:37 +01:00
parent e046657b4f
commit 9445ac70d8
4 changed files with 99 additions and 25 deletions
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33
beacon_node/beacon_chain/src/beacon_chain.rs
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@@ -2486,7 +2486,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
while let Some((_root, block)) = filtered_chain_segment.first() {
// Determine the epoch of the first block in the remaining segment.
let start_epoch = block.slot().epoch(T::EthSpec::slots_per_epoch());
let start_epoch = block.epoch();
// The `last_index` indicates the position of the first block in an epoch greater
// than the current epoch: partitioning the blocks into a run of blocks in the same
@@ -2494,9 +2494,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
// the same `BeaconState`.
let last_index = filtered_chain_segment
.iter()
.position(|(_root, block)| {
block.slot().epoch(T::EthSpec::slots_per_epoch()) > start_epoch
})
.position(|(_root, block)| block.epoch() > start_epoch)
.unwrap_or(filtered_chain_segment.len());
let mut blocks = filtered_chain_segment.split_off(last_index);
@@ -3162,7 +3160,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
// Sync aggregate.
if let Ok(sync_aggregate) = block.body().sync_aggregate() {
// `SyncCommittee` for the sync_aggregate should correspond to the duty slot
let duty_epoch = block.slot().epoch(T::EthSpec::slots_per_epoch());
let duty_epoch = block.epoch();
match self.sync_committee_at_epoch(duty_epoch) {
Ok(sync_committee) => {
@@ -3429,7 +3427,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
parent_block_slot: Slot,
) {
// Do not write to eth1 finalization cache for blocks older than 5 epochs.
if block.slot().epoch(T::EthSpec::slots_per_epoch()) + 5 < current_epoch {
if block.epoch() + 5 < current_epoch {
return;
}
@@ -5860,6 +5858,29 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
.flatten()
}
/// The epoch since which we cater blob data upon a request 'ByRoot'.
/// `None` if the `Eip4844` fork is disabled.
pub fn data_availability_boundary_by_root_rpc_request(&self) -> Option<Epoch> {
self.spec
.eip4844_fork_epoch
.map(|fork_epoch| {
self.epoch().ok().map(|current_epoch| {
vec![
fork_epoch,
current_epoch.saturating_sub(*MIN_EPOCHS_FOR_BLOBS_SIDECARS_REQUESTS),
self.canonical_head
.cached_head()
.finalized_checkpoint()
.epoch,
]
.into_iter()
.max()
})
})
.flatten()
.flatten()
}
/// Returns `true` if we are at or past the `Eip4844` fork. This will always return `false` if
/// the `Eip4844` fork is disabled.
pub fn is_data_availability_check_required(&self) -> Result<bool, Error> {