status-im/eth2.0-specs
2
0
Fork 0
mirror of https://github.com/status-im/eth2.0-specs.git synced 2025-02-24 08:18:14 +00:00
Code Issues Projects Releases Wiki Activity

Pass timestamp to execution state transition and payload production

Browse Source
This commit is contained in:
Mikhail Kalinin 2021-04-08 15:26:32 +06:00
parent a1ded22b3a
commit 334a9b2434
2 changed files with 15 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
specs/merge/beacon-chain.md
View File

@ -26,6 +26,7 @@
- [Misc](#misc)
- [`is_transition_completed`](#is_transition_completed)
- [`is_transition_block`](#is_transition_block)
- [`compute_time_at_slot`](#compute_time_at_slot)
- [Block processing](#block-processing)
- [Execution payload processing](#execution-payload-processing)
- [`get_execution_state`](#get_execution_state)
@ -149,6 +150,14 @@ def is_transition_block(state: BeaconState, block_body: BeaconBlockBody) -> bool
return not is_transition_completed(state) and block_body.execution_payload != ExecutionPayload()
```
#### `compute_time_at_slot`
```python
def compute_time_at_slot(state: BeaconState, slot: Slot) -> uint64:
slots_since_genesis = slot - GENESIS_SLOT
return uint64(state.genesis_time + slots_since_genesis * SECONDS_PER_SLOT)
```
### Block processing
```python
@ -171,7 +180,7 @@ The body of the function is implementation dependent.
##### `execution_state_transition`
Let `execution_state_transition(execution_state: ExecutionState, execution_payload: ExecutionPayload) -> None` be the transition function of Ethereum execution state.
Let `execution_state_transition(execution_state: ExecutionState, execution_payload: ExecutionPayload, timestamp: uint64) -> None` be the transition function of Ethereum execution state.
The body of the function is implementation dependent.
*Note*: `execution_state_transition` must throw `AssertionError` if either the transition itself or one of the pre or post conditions has failed.
@ -193,8 +202,9 @@ def process_execution_payload(state: BeaconState, body: BeaconBlockBody) -> None
assert execution_payload.parent_hash == state.latest_execution_payload_header.block_hash
assert execution_payload.number == state.latest_execution_payload_header.number + 1
timestamp = compute_time_at_slot(state, state.slot)
execution_state = get_execution_state(state.latest_execution_payload_header.state_root)
execution_state_transition(execution_state, execution_payload)
execution_state_transition(execution_state, body.execution_payload, timestamp)
state.latest_execution_payload_header = ExecutionPayloadHeader(
block_hash=execution_payload.block_hash,

5
specs/merge/validator.md
View File

@ -48,7 +48,7 @@ Let `get_pow_chain_head() -> PowBlock` be the function that returns the head of
###### `produce_execution_payload`
Let `produce_execution_payload(parent_hash: Hash32) -> ExecutionPayload` be the function that produces new instance of execution payload.
Let `produce_execution_payload(parent_hash: Hash32, timestamp: uint64) -> ExecutionPayload` be the function that produces new instance of execution payload.
The body of this function is implementation dependent.
* Set `block.body.execution_payload = get_execution_payload(state)` where:
@ -66,5 +66,6 @@ def get_execution_payload(state: BeaconState) -> ExecutionPayload:
# Post-merge, normal payload
execution_parent_hash = state.latest_execution_payload_header.block_hash
return produce_execution_payload(execution_parent_hash)
timestamp = compute_time_at_slot(state, state.slot)
return produce_execution_payload(execution_parent_hash, timestamp)
```