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Update 0_beacon-chain.md

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Justin 2019-03-16 11:23:41 +00:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -595,7 +595,6 @@ The types are defined topologically to aid in facilitating an executable version
'validator_registry': [Validator],
'validator_balances': ['uint64'],
'validator_registry_update_epoch': 'uint64',
'validator_registry_update_slashed_balances': 'uint64',
# Randomness and committees
'latest_randao_mixes': ['bytes32', LATEST_RANDAO_MIXES_LENGTH],
@ -2103,21 +2102,23 @@ def update_validator_registry(state: BeaconState) -> None:
activate_validator(state, index, is_genesis=False)
# Exit validators within the allowable balance churn
total_at_start = state.validator_registry_update_slashed_balances
total_at_end = state.latest_slashed_balances[current_epoch % LATEST_SLASHED_EXIT_LENGTH]
balance_churn = total_at_end - total_at_start
for index, validator in enumerate(state.validator_registry):
if validator.exit_epoch == FAR_FUTURE_EPOCH and validator.initiated_exit:
# Check the balance churn would be within the allowance
balance_churn += get_effective_balance(state, index)
if balance_churn > max_balance_churn:
break
if state.current_epoch < state.validator_registry_update_epoch + LATEST_SLASHED_EXIT_LENGTH:
balance_churn = (
state.latest_slashed_balances[state.validator_registry_update_epoch % LATEST_SLASHED_EXIT_LENGTH] -
state.latest_slashed_balances[current_epoch % LATEST_SLASHED_EXIT_LENGTH]
)
# Exit validator
exit_validator(state, index)
for index, validator in enumerate(state.validator_registry):
if validator.exit_epoch == FAR_FUTURE_EPOCH and validator.initiated_exit:
# Check the balance churn would be within the allowance
balance_churn += get_effective_balance(state, index)
if balance_churn > max_balance_churn:
break
# Exit validator
exit_validator(state, index)
state.validator_registry_update_epoch = current_epoch
state.validator_registry_update_slashed_balances = total_at_end
```
Run the following function: