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Fix lint (#2750)

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Hsiao-Wei Wang 2021-11-30 20:38:42 +08:00 committed by GitHub
parent 6fa19705fb
commit 7de1495a42
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4 changed files with 25 additions and 9 deletions
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4
presets/mainnet/altair.yaml
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@ -22,3 +22,7 @@ EPOCHS_PER_SYNC_COMMITTEE_PERIOD: 256
# ---------------------------------------------------------------
# 1
MIN_SYNC_COMMITTEE_PARTICIPANTS: 1
# SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD (= 32 * 256)
UPDATE_TIMEOUT: 8192
# SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD // 2 (= 32 * 256 // 2)
SAFETY_THRESHOLD_PERIOD: 4096

4
presets/minimal/altair.yaml
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@ -22,3 +22,7 @@ EPOCHS_PER_SYNC_COMMITTEE_PERIOD: 8
# ---------------------------------------------------------------
# 1
MIN_SYNC_COMMITTEE_PARTICIPANTS: 1
# SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD (= 8 * 8)
UPDATE_TIMEOUT: 64
# SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD // 2 (= 8 * 8 // 2)
SAFETY_THRESHOLD_PERIOD: 32

1
setup.py
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@ -683,6 +683,7 @@ ignored_dependencies = [
'uint8', 'uint16', 'uint32', 'uint64', 'uint128', 'uint256',
'bytes', 'byte', 'ByteList', 'ByteVector',
'Dict', 'dict', 'field', 'ceillog2', 'floorlog2', 'Set',
'Optional',
]

25
specs/altair/sync-protocol.md
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@ -52,8 +52,8 @@ uses sync committees introduced in [this beacon chain extension](./beacon-chain.
| Name | Value | Notes |
| - | - | - |
| `MIN_SYNC_COMMITTEE_PARTICIPANTS` | `1` | |
| `SAFETY_THRESHOLD_PERIOD` | `SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD` | ~13.6 hours |
| `UPDATE_TIMEOUT` | `SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD` | ~27.3 hours |
| `SAFETY_THRESHOLD_PERIOD` | `SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD // 2` | ~13.6 hours |
## Containers
@ -79,6 +79,7 @@ class LightClientUpdate(Container):
### `LightClientStore`
```python
@dataclass
class LightClientStore(object):
# Beacon block header that is finalized
finalized_header: BeaconBlockHeader
@ -119,7 +120,7 @@ def get_active_header(update: LightClientUpdate) -> BeaconBlockHeader:
### `get_safety_threshold`
```python
def get_safety_threshold(store: LightClientStore):
def get_safety_threshold(store: LightClientStore) -> uint64:
return max(
store.previous_max_active_participants,
store.current_max_active_participants
@ -130,10 +131,10 @@ def get_safety_threshold(store: LightClientStore):
A light client maintains its state in a `store` object of type `LightClientStore` and receives `update` objects of type `LightClientUpdate`. Every `update` triggers `process_light_client_update(store, update, current_slot)` where `current_slot` is the current slot based on some local clock. `process_slot` is processed every time the current slot increments.
### `process_slot`
#### `process_slot`
```python
def process_slot(store: LightClientStore, current_slot: Slot):
def process_slot_for_light_client_store(store: LightClientStore, current_slot: Slot) -> None:
if current_slot % SAFETY_THRESHOLD_PERIOD == 0:
store.previous_max_active_participants = store.current_max_active_participants
store.current_max_active_participants = 0
@ -216,13 +217,16 @@ def process_light_client_update(store: LightClientStore,
validate_light_client_update(store, update, current_slot, genesis_validators_root)
# Update the best update in case we have to force-update to it if the timeout elapses
if sum(update.sync_committee_bits) > sum(store.best_valid_update.sync_committee_bits):
if (
store.best_valid_update is None
or sum(update.sync_committee_bits) > sum(store.best_valid_update.sync_committee_bits)
):
store.best_valid_update = update
# Track the maximum numebr of active participants in the committee signatures
# Track the maximum number of active participants in the committee signatures
store.current_max_active_participants = max(
store.current_max_active_participants,
update.sync_committee_bits.count(1)
store.current_max_active_participants,
update.sync_committee_bits.count(1),
)
# Update the optimistic header
@ -240,7 +244,10 @@ def process_light_client_update(store: LightClientStore,
# Normal update through 2/3 threshold
apply_light_client_update(store, update)
store.best_valid_update = None
elif current_slot > store.finalized_header.slot + UPDATE_TIMEOUT:
elif (
current_slot > store.finalized_header.slot + UPDATE_TIMEOUT
and store.best_valid_update is not None
):
# Forced best update when the update timeout has elapsed
apply_light_client_update(store, store.best_valid_update)
store.best_valid_update = None