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eth2.0-specs
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make genesis delay configurable

This commit is contained in:
Danny Ryan 2020-01-05 15:29:23 -07:00
parent 5ac0d12205
commit 50c8727ae7
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4 changed files with 8 additions and 4 deletions
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2
configs/mainnet.yaml
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@ -72,6 +72,8 @@ BLS_WITHDRAWAL_PREFIX: 0x00
# Time parameters
# ---------------------------------------------------------------
# 86400 seconds (1 day)
MIN_GENESIS_DELAY: 86400
# 12 seconds
SECONDS_PER_SLOT: 12
# 2**0 (= 1) slots 12 seconds

2
configs/minimal.yaml
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@ -72,6 +72,8 @@ BLS_WITHDRAWAL_PREFIX: 0x00
# Time parameters
# ---------------------------------------------------------------
# [customized] Faster to spin up testnets, but does not give validator reasonable warning time for genesis
MIN_GENESIS_DELAY: 300
# [customized] Faster for testing purposes
SECONDS_PER_SLOT: 6
# 2**0 (= 1) slots 6 seconds

4
specs/core/0_beacon-chain.md
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@ -161,7 +161,6 @@ The following values are (non-configurable) constants used throughout the specif
| `FAR_FUTURE_EPOCH` | `Epoch(2**64 - 1)` |
| `BASE_REWARDS_PER_EPOCH` | `4` |
| `DEPOSIT_CONTRACT_TREE_DEPTH` | `2**5` (= 32) |
| `SECONDS_PER_DAY` | `86400` |
| `JUSTIFICATION_BITS_LENGTH` | `4` |
| `ENDIANNESS` | `'little'` |
@ -206,6 +205,7 @@ The following values are (non-configurable) constants used throughout the specif
| Name | Value | Unit | Duration |
| - | - | :-: | :-: |
| `MIN_GENESIS_DELAY` | `86400` | seconds | 1 day |
| `SECONDS_PER_SLOT` | `12` | seconds | 12 seconds |
| `MIN_ATTESTATION_INCLUSION_DELAY` | `2**0` (= 1) | slots | 12 seconds |
| `SLOTS_PER_EPOCH` | `2**5` (= 32) | slots | 6.4 minutes |
@ -1070,7 +1070,7 @@ def initialize_beacon_state_from_eth1(eth1_block_hash: Bytes32,
epoch=GENESIS_EPOCH,
)
state = BeaconState(
genesis_time=eth1_timestamp - eth1_timestamp % SECONDS_PER_DAY + 2 * SECONDS_PER_DAY,
genesis_time=eth1_timestamp - eth1_timestamp % MIN_GENESIS_DELAY + 2 * MIN_GENESIS_DELAY,
fork=fork,
eth1_data=Eth1Data(block_hash=eth1_block_hash, deposit_count=len(deposits)),
latest_block_header=BeaconBlockHeader(body_root=hash_tree_root(BeaconBlockBody())),

4
test_libs/pyspec/eth2spec/test/genesis/test_initialization.py
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@ -20,7 +20,7 @@ def test_initialize_beacon_state_from_eth1(spec):
# initialize beacon_state
state = spec.initialize_beacon_state_from_eth1(eth1_block_hash, eth1_timestamp, deposits)
assert state.genesis_time == eth1_timestamp - eth1_timestamp % spec.SECONDS_PER_DAY + 2 * spec.SECONDS_PER_DAY
assert state.genesis_time == eth1_timestamp - eth1_timestamp % spec.MIN_GENESIS_DELAY + 2 * spec.MIN_GENESIS_DELAY
assert len(state.validators) == deposit_count
assert state.eth1_data.deposit_root == deposit_root
assert state.eth1_data.deposit_count == deposit_count
@ -55,7 +55,7 @@ def test_initialize_beacon_state_some_small_balances(spec):
# initialize beacon_state
state = spec.initialize_beacon_state_from_eth1(eth1_block_hash, eth1_timestamp, deposits)
assert state.genesis_time == eth1_timestamp - eth1_timestamp % spec.SECONDS_PER_DAY + 2 * spec.SECONDS_PER_DAY
assert state.genesis_time == eth1_timestamp - eth1_timestamp % spec.MIN_GENESIS_DELAY + 2 * spec.MIN_GENESIS_DELAY
assert len(state.validators) == small_deposit_count
assert state.eth1_data.deposit_root == deposit_root
assert state.eth1_data.deposit_count == len(deposits)