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Fix `process_light_client_update`

This commit is contained in:
Hsiao-Wei Wang 2021-12-14 22:05:09 +08:00
parent 2f618f7b48
commit 25d88fee24
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1 changed files with 7 additions and 5 deletions
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12
specs/altair/sync-protocol.md
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@ -226,30 +226,32 @@ def process_light_client_update(store: LightClientStore,
genesis_validators_root: Root) -> None:
validate_light_client_update(store, update, current_slot, genesis_validators_root)
sync_committee_bits = update.sync_committee_aggregate.sync_committee_bits
# Update the best update in case we have to force-update to it if the timeout elapses
if (
store.best_valid_update is None
or sum(update.sync_committee_bits) > sum(store.best_valid_update.sync_committee_bits)
or sum(sync_committee_bits) > sum(store.best_valid_update.sync_committee_aggregate.sync_committee_bits)
):
store.best_valid_update = update
# Track the maximum number of active participants in the committee signatures
store.current_max_active_participants = max(
store.current_max_active_participants,
sum(update.sync_committee_bits),
sum(sync_committee_bits),
)
# Update the optimistic header
if (
sum(update.sync_committee_bits) > get_safety_threshold(store) and
sum(sync_committee_bits) > get_safety_threshold(store) and
update.attested_header.slot > store.optimistic_header.slot
):
store.optimistic_header = update.attested_header
# Update finalized header
if (
sum(update.sync_committee_bits) * 3 >= len(update.sync_committee_bits) * 2
sum(sync_committee_bits) * 3 >= len(sync_committee_bits) * 2
and update.finalized_header != BeaconBlockHeader()
):
# Normal update through 2/3 threshold