status-im/eth2.0-specs
2
0
Fork 0
mirror of https://github.com/status-im/eth2.0-specs.git synced 2025-02-03 06:13:31 +00:00
Code Issues Projects Releases Wiki Activity

fix change_validators

Browse Source
This commit is contained in:
Danny Ryan 2018-12-05 14:35:58 -06:00
parent 1ccb1074c5
commit 22a77c331b
No known key found for this signature in database
GPG Key ID: 2765A792E42CE07A
1 changed files with 25 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
specs/core/0_beacon-chain.md
View File

@ -1469,27 +1469,36 @@ If the following are satisfied:
* `state.finalized_slot > state.validator_registry_latest_change_slot`
* `state.latest_crosslinks[shard].slot > state.validator_registry_latest_change_slot` for every shard number `shard` in `state.shard_committees_at_slots`
update the validator registry by running
update the validator registry and associated fields by running
```python
update_validator_registry(
copy.deepcopy(state.validator_registry),
copy.deepcopy(state.latest_penalized_exit_balances),
def change_validators(state: BeaconState) -> None:
"""
Change validator registry.
Note that this function mutates ``state``.
"""
state.validator_registry, state.latest_penalized_exit_balances, state.validator_registry_delta_chain_tip = get_update_validator_registry(
state.validator_registry,
state.latest_penalized_exit_balances,
state.validator_registry_delta_chain_tip,
state.slot
)
```
where
which utilizes the following helper
```python
def update_validator_registry(validator_registry: List[ValidatorRecord],
def get_updated_validator_registry(validator_registry: List[ValidatorRecord],
latest_penalized_exit_balances: List[int],
validator_registry_delta_chain_tip: int,
current_slot: int) -> Tuple[List[ValidatorRecord], List[int], int]:
"""
Update the validator registry, as well as ``latest_penalized_exit_balances`` and ``validator_registry_delta_chain_tip``.
return the validator registry, as well as ``latest_penalized_exit_balances`` and ``validator_registry_delta_chain_tip``.
"""
# make copies to prevent mutating inputs
validator_registry = copy.deepcopy(state.validator_registry)
latest_penalized_exit_balances = copy.deepcopy(latest_penalized_exit_balances)
# The active validators
active_validator_indices = get_active_validator_indices(validator_registry)
# The total effective balance of active validators
@ -1503,8 +1512,7 @@ def update_validator_registry(validator_registry: List[ValidatorRecord],
# Activate validators within the allowable balance churn
balance_churn = 0
for i in range(len(validator_registry)):
validator = validator_registry[i]
for i, validator in enumerate(validator_registry):
if validator.status == PENDING_ACTIVATION and validator.balance >= MAX_DEPOSIT:
# Check the balance churn would be within the allowance
balance_churn += get_effective_balance(validator)
@ -1523,8 +1531,7 @@ def update_validator_registry(validator_registry: List[ValidatorRecord],
# Exit validators within the allowable balance churn
balance_churn = 0
for i in range(len(validators)):
validator = validator_registry[i]
for i, validator in enumerate(validators):
if validator.status == ACTIVE_PENDING_EXIT:
# Check the balance churn would be within the allowance
balance_churn += get_effective_balance(validator)
@ -1556,10 +1563,7 @@ def update_validator_registry(validator_registry: List[ValidatorRecord],
for v in validators_to_penalize:
v.balance -= get_effective_balance(v) * min(total_penalties * 3, total_balance) // total_balance
# Update the state
state.validator_registry = validator_registry
state.validator_registry_delta_chain_tip = validator_registry_delta_chain_tip
state.latest_penalized_exit_balances = latest_penalized_exit_balances
return validator_registry, latest_penalized_exit_balances, validator_registry_delta_chain_tip
```
Also perform the following updates: