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Add @ralexstokes's fix

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Hsiao-Wei Wang 2021-01-19 20:12:36 +08:00
parent ce87914326
commit fb0c6d54f8
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1 changed files with 5 additions and 3 deletions
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specs/lightclient/sync-protocol.md
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@ -185,10 +185,12 @@ def process_light_client_update(store: LightClientStore, update: LightClientUpda
store.valid_updates.append(update) store.valid_updates.append(update)
if ( if (
sum(update.sync_committee_bits) * 3 >= len(update.sync_committee_bits) * 2 sum(update.sync_committee_bits) * 3 > len(update.sync_committee_bits) * 2
and update.header != update.finality_header and update.finality_header != BeaconBlockHeader()
): ):
# Apply update if 2/3 quorum is reached and we have a finality proof # Apply update if (1) 2/3 quorum is reached and (2) we have a finality proof.
# Note that (2) means that the current light client design needs finality.
# It may be changed to re-organizable light client design. See the on-going issue eth2.0-specs#2182.
apply_light_client_update(store, update) apply_light_client_update(store, update)
store.valid_updates = [] store.valid_updates = []
elif current_slot > store.snapshot.header.slot + LIGHT_CLIENT_UPDATE_TIMEOUT: elif current_slot > store.snapshot.header.slot + LIGHT_CLIENT_UPDATE_TIMEOUT: