nimbus-eth2/beacon_chain/validator.nim

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2018-11-23 19:42:47 +00:00
import
options,
eth_common,
./datatypes, ./private/helpers
func min_empty_validator(validators: seq[ValidatorRecord], current_slot: uint64): Option[int] =
for i, v in validators:
if v.status == WITHDRAWN and v.exit_slot + DELETION_PERIOD.uint64 <= current_slot:
return some(i)
func add_validator*(validators: var seq[ValidatorRecord],
pubkey: BLSPublicKey,
proof_of_possession: seq[byte],
withdrawal_shard: uint16,
withdrawal_address: EthAddress,
randao_commitment: Blake2_256_Digest,
status: ValidatorStatusCodes,
current_slot: uint64
): int =
# Check that validator really did register
# let signed_message = as_bytes32(pubkey) + as_bytes2(withdrawal_shard) + withdrawal_address + randao_commitment
# assert BLSVerify(pub=pubkey,
# msg=hash(signed_message),
# sig=proof_of_possession)
# Pubkey uniqueness
# assert pubkey not in [v.pubkey for v in validators]
let
rec = ValidatorRecord(
pubkey: pubkey,
withdrawal_shard: withdrawal_shard,
withdrawal_address: withdrawal_address,
randao_commitment: randao_commitment,
randao_last_change: current_slot,
balance: DEPOSIT_SIZE * GWEI_PER_ETH,
status: status,
exit_slot: 0,
exit_seq: 0
)
let index = min_empty_validator(validators, current_slot)
if index.isNone:
validators.add(rec)
return len(validators) - 1
else:
validators[index.get()] = rec
return index.get()