613 lines
23 KiB
Nim
613 lines
23 KiB
Nim
# beacon_chain
|
|
# Copyright (c) 2019-2024 Status Research & Development GmbH
|
|
# Licensed and distributed under either of
|
|
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
|
|
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
|
|
# at your option. This file may not be copied, modified, or distributed except according to those terms.
|
|
|
|
{.push raises: [].}
|
|
|
|
# `block_sim` is a block, attestation, and sync committee simulator, whose task
|
|
# is to run the beacon chain without considering the network or the wall clock.
|
|
#
|
|
# Functionally, it achieves the same as the distributed beacon chain by
|
|
# producing blocks and attestations as if they were created by separate
|
|
# nodes, just like a set of `beacon_node` instances would.
|
|
|
|
import
|
|
confutils, chronicles, eth/db/kvstore_sqlite3,
|
|
chronos/timer, taskpools,
|
|
../tests/testblockutil,
|
|
../beacon_chain/el/eth1_chain,
|
|
../beacon_chain/spec/[forks, state_transition],
|
|
../beacon_chain/beacon_chain_db,
|
|
../beacon_chain/validators/validator_pool,
|
|
../beacon_chain/gossip_processing/[batch_validation, gossip_validation],
|
|
../beacon_chain/consensus_object_pools/[blockchain_dag, block_clearance],
|
|
./simutils
|
|
|
|
from std/random import Rand, gauss, initRand, rand
|
|
from std/stats import RunningStat
|
|
from ../beacon_chain/consensus_object_pools/attestation_pool import
|
|
AttestationPool, addAttestation, addForkChoice, getAttestationsForBlock,
|
|
getElectraAttestationsForBlock, init, prune
|
|
from ../beacon_chain/consensus_object_pools/block_quarantine import
|
|
Quarantine, init
|
|
from ../beacon_chain/consensus_object_pools/sync_committee_msg_pool import
|
|
SyncCommitteeMsgPool, addContribution, addSyncCommitteeMessage, init,
|
|
produceContribution, produceSyncAggregate, pruneData
|
|
from ../beacon_chain/spec/beaconstate import
|
|
get_beacon_committee, get_beacon_proposer_index,
|
|
get_committee_count_per_slot, get_committee_indices
|
|
from ../beacon_chain/spec/state_transition_block import process_block
|
|
from ../tests/testbcutil import addHeadBlock
|
|
|
|
type Timers = enum
|
|
tBlock = "Process non-epoch slot with block"
|
|
tEpoch = "Process epoch slot with block"
|
|
tHashBlock = "Tree-hash block"
|
|
tSignBlock = "Sign block"
|
|
tAttest = "Have committee attest to block"
|
|
tSyncCommittees = "Produce sync committee actions"
|
|
tReplay = "Replay all produced blocks"
|
|
|
|
# TODO The rest of nimbus-eth2 uses only the forked version of these, and in
|
|
# general it's better for the validator_duties caller to use the forkedstate
|
|
# version, so isolate these here pending refactoring of block_sim to prefer,
|
|
# when possible, to also use the forked version. It'll be worth keeping some
|
|
# example of the non-forked version because it enables fork bootstrapping.
|
|
proc makeSimulationBlock(
|
|
cfg: RuntimeConfig,
|
|
state: var deneb.HashedBeaconState,
|
|
proposer_index: ValidatorIndex,
|
|
randao_reveal: ValidatorSig,
|
|
eth1_data: Eth1Data,
|
|
graffiti: GraffitiBytes,
|
|
attestations: seq[phase0.Attestation],
|
|
deposits: seq[Deposit],
|
|
exits: BeaconBlockValidatorChanges,
|
|
sync_aggregate: SyncAggregate,
|
|
execution_payload: deneb.ExecutionPayloadForSigning,
|
|
bls_to_execution_changes: SignedBLSToExecutionChangeList,
|
|
rollback: RollbackHashedProc[deneb.HashedBeaconState],
|
|
cache: var StateCache,
|
|
# TODO:
|
|
# `verificationFlags` is needed only in tests and can be
|
|
# removed if we don't use invalid signatures there
|
|
verificationFlags: UpdateFlags = {}): Result[deneb.BeaconBlock, cstring] =
|
|
## Create a block for the given state. The latest block applied to it will
|
|
## be used for the parent_root value, and the slot will be take from
|
|
## state.slot meaning process_slots must be called up to the slot for which
|
|
## the block is to be created.
|
|
|
|
# To create a block, we'll first apply a partial block to the state, skipping
|
|
# some validations.
|
|
|
|
var blck = partialBeaconBlock(
|
|
cfg, state, proposer_index, randao_reveal, eth1_data, graffiti,
|
|
attestations, deposits, exits, sync_aggregate, execution_payload,
|
|
default(ExecutionRequests))
|
|
|
|
let res = process_block(
|
|
cfg, state.data, blck.asSigVerified(), verificationFlags, cache)
|
|
|
|
if res.isErr:
|
|
rollback(state)
|
|
return err(res.error())
|
|
|
|
state.root = hash_tree_root(state.data)
|
|
blck.state_root = state.root
|
|
|
|
ok(blck)
|
|
|
|
proc makeSimulationBlock(
|
|
cfg: RuntimeConfig,
|
|
state: var electra.HashedBeaconState,
|
|
proposer_index: ValidatorIndex,
|
|
randao_reveal: ValidatorSig,
|
|
eth1_data: Eth1Data,
|
|
graffiti: GraffitiBytes,
|
|
attestations: seq[electra.Attestation],
|
|
deposits: seq[Deposit],
|
|
exits: BeaconBlockValidatorChanges,
|
|
sync_aggregate: SyncAggregate,
|
|
execution_payload: electra.ExecutionPayloadForSigning,
|
|
bls_to_execution_changes: SignedBLSToExecutionChangeList,
|
|
rollback: RollbackHashedProc[electra.HashedBeaconState],
|
|
cache: var StateCache,
|
|
# TODO:
|
|
# `verificationFlags` is needed only in tests and can be
|
|
# removed if we don't use invalid signatures there
|
|
verificationFlags: UpdateFlags = {}): Result[electra.BeaconBlock, cstring] =
|
|
## Create a block for the given state. The latest block applied to it will
|
|
## be used for the parent_root value, and the slot will be take from
|
|
## state.slot meaning process_slots must be called up to the slot for which
|
|
## the block is to be created.
|
|
|
|
# To create a block, we'll first apply a partial block to the state, skipping
|
|
# some validations.
|
|
|
|
var blck = partialBeaconBlock(
|
|
cfg, state, proposer_index, randao_reveal, eth1_data, graffiti,
|
|
attestations, deposits, exits, sync_aggregate, execution_payload,
|
|
default(ExecutionRequests))
|
|
|
|
let res = process_block(
|
|
cfg, state.data, blck.asSigVerified(), verificationFlags, cache)
|
|
|
|
if res.isErr:
|
|
rollback(state)
|
|
return err(res.error())
|
|
|
|
state.root = hash_tree_root(state.data)
|
|
blck.state_root = state.root
|
|
|
|
ok(blck)
|
|
|
|
proc makeSimulationBlock(
|
|
cfg: RuntimeConfig,
|
|
state: var fulu.HashedBeaconState,
|
|
proposer_index: ValidatorIndex,
|
|
randao_reveal: ValidatorSig,
|
|
eth1_data: Eth1Data,
|
|
graffiti: GraffitiBytes,
|
|
attestations: seq[electra.Attestation],
|
|
deposits: seq[Deposit],
|
|
exits: BeaconBlockValidatorChanges,
|
|
sync_aggregate: SyncAggregate,
|
|
execution_payload: fulu.ExecutionPayloadForSigning,
|
|
bls_to_execution_changes: SignedBLSToExecutionChangeList,
|
|
rollback: RollbackHashedProc[fulu.HashedBeaconState],
|
|
cache: var StateCache,
|
|
# TODO:
|
|
# `verificationFlags` is needed only in tests and can be
|
|
# removed if we don't use invalid signatures there
|
|
verificationFlags: UpdateFlags = {}): Result[fulu.BeaconBlock, cstring] =
|
|
## Create a block for the given state. The latest block applied to it will
|
|
## be used for the parent_root value, and the slot will be take from
|
|
## state.slot meaning process_slots must be called up to the slot for which
|
|
## the block is to be created.
|
|
|
|
# To create a block, we'll first apply a partial block to the state, skipping
|
|
# some validations.
|
|
|
|
var blck = partialBeaconBlock(
|
|
cfg, state, proposer_index, randao_reveal, eth1_data, graffiti,
|
|
attestations, deposits, exits, sync_aggregate, execution_payload,
|
|
default(ExecutionRequests))
|
|
|
|
let res = process_block(
|
|
cfg, state.data, blck.asSigVerified(), verificationFlags, cache)
|
|
|
|
if res.isErr:
|
|
rollback(state)
|
|
return err(res.error())
|
|
|
|
state.root = hash_tree_root(state.data)
|
|
blck.state_root = state.root
|
|
|
|
ok(blck)
|
|
|
|
# TODO confutils is an impenetrable black box. how can a help text be added here?
|
|
cli do(slots = SLOTS_PER_EPOCH * 7,
|
|
validators = SLOTS_PER_EPOCH * 500,
|
|
attesterRatio {.desc: "ratio of validators that attest in each round"} = 0.82,
|
|
syncCommitteeRatio {.desc: "ratio of validators that perform sync committee actions in each round"} = 0.82,
|
|
blockRatio {.desc: "ratio of slots with blocks"} = 1.0,
|
|
replay = true):
|
|
let
|
|
(genesisState, depositTreeSnapshot) = loadGenesis(validators, false)
|
|
genesisTime = float getStateField(genesisState[], genesis_time)
|
|
const cfg = getSimulationConfig()
|
|
|
|
echo "Starting simulation..."
|
|
|
|
let db = BeaconChainDB.new("block_sim_db")
|
|
defer: db.close()
|
|
|
|
ChainDAGRef.preInit(db, genesisState[])
|
|
db.putDepositContractSnapshot(depositTreeSnapshot)
|
|
|
|
let rng = HmacDrbgContext.new()
|
|
var
|
|
validatorMonitor = newClone(ValidatorMonitor.init())
|
|
dag = ChainDAGRef.init(cfg, db, validatorMonitor, {})
|
|
eth1Chain = Eth1Chain.init(cfg, db, 0, default Eth2Digest)
|
|
merkleizer = DepositsMerkleizer.init(depositTreeSnapshot.depositContractState)
|
|
taskpool =
|
|
try:
|
|
Taskpool.new()
|
|
except Exception as exc:
|
|
raiseAssert "Failed to initialize Taskpool: " & exc.msg
|
|
verifier = BatchVerifier.init(rng, taskpool)
|
|
quarantine = newClone(Quarantine.init())
|
|
attPool = AttestationPool.init(dag, quarantine)
|
|
batchCrypto = BatchCrypto.new(
|
|
rng, eager = func(): bool = true,
|
|
genesis_validators_root = dag.genesis_validators_root,
|
|
taskpool).expect("working batcher")
|
|
syncCommitteePool = newClone SyncCommitteeMsgPool.init(rng, cfg)
|
|
timers: array[Timers, RunningStat]
|
|
attesters: RunningStat
|
|
r = initRand(1)
|
|
tmpState = assignClone(dag.headState)
|
|
|
|
eth1Chain.addBlock Eth1Block(
|
|
number: Eth1BlockNumber 1,
|
|
timestamp: Eth1BlockTimestamp genesisTime)
|
|
|
|
let replayState = assignClone(dag.headState)
|
|
|
|
proc handleAttestations(slot: Slot) =
|
|
let
|
|
attestationHead = dag.head.atSlot(slot)
|
|
|
|
dag.withUpdatedState(tmpState[], attestationHead.toBlockSlotId.expect("not nil")) do:
|
|
let
|
|
fork = getStateField(updatedState, fork)
|
|
genesis_validators_root = getStateField(updatedState, genesis_validators_root)
|
|
committees_per_slot =
|
|
get_committee_count_per_slot(updatedState, slot.epoch, cache)
|
|
|
|
for committee_index in get_committee_indices(committees_per_slot):
|
|
let committee = get_beacon_committee(
|
|
updatedState, slot, committee_index, cache)
|
|
|
|
for index_in_committee, validator_index in committee:
|
|
if rand(r, 1.0) <= attesterRatio:
|
|
if tmpState.kind < ConsensusFork.Electra:
|
|
let
|
|
data = makeAttestationData(
|
|
updatedState, slot, committee_index, bid.root)
|
|
sig =
|
|
get_attestation_signature(
|
|
fork, genesis_validators_root, data,
|
|
MockPrivKeys[validator_index])
|
|
attestation = phase0.Attestation.init(
|
|
[uint64 index_in_committee], committee.len, data,
|
|
sig.toValidatorSig()).expect("valid data")
|
|
|
|
attPool.addAttestation(
|
|
attestation, [validator_index], sig, data.slot.start_beacon_time)
|
|
else:
|
|
var
|
|
data = makeAttestationData(
|
|
updatedState, slot, committee_index, bid.root)
|
|
committee_bits: BitArray[static(MAX_COMMITTEES_PER_SLOT.int)]
|
|
aggregation_bits = ElectraCommitteeValidatorsBits.init(committee.len)
|
|
let committeeidx = data.index
|
|
aggregation_bits.setBit(index_in_committee)
|
|
committee_bits.setBit(committeeidx)
|
|
data.index = 0 # obviously, fix in makeAttestationData for Electra
|
|
let
|
|
sig =
|
|
get_attestation_signature(
|
|
fork, genesis_validators_root, data,
|
|
MockPrivKeys[validator_index])
|
|
attestation = electra.Attestation(
|
|
# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.8/specs/electra/validator.md#construct-attestation
|
|
aggregation_bits: aggregation_bits,
|
|
data: data,
|
|
committee_bits: committee_bits,
|
|
signature: sig.toValidatorSig())
|
|
|
|
attPool.addAttestation(
|
|
attestation, [validator_index], sig, data.slot.start_beacon_time)
|
|
do:
|
|
raiseAssert "withUpdatedState failed"
|
|
|
|
proc handleSyncCommitteeActions(slot: Slot) =
|
|
type
|
|
Aggregator = object
|
|
subcommitteeIdx: SyncSubcommitteeIndex
|
|
validatorIdx: ValidatorIndex
|
|
selectionProof: ValidatorSig
|
|
|
|
let
|
|
syncCommittee = @(dag.syncCommitteeParticipants(slot + 1))
|
|
genesis_validators_root = dag.genesis_validators_root
|
|
fork = dag.forkAtEpoch(slot.epoch)
|
|
messagesTime = slot.attestation_deadline()
|
|
contributionsTime = slot.sync_contribution_deadline()
|
|
|
|
var aggregators: seq[Aggregator]
|
|
|
|
for subcommitteeIdx in SyncSubcommitteeIndex:
|
|
for validatorIdx in syncSubcommittee(syncCommittee, subcommitteeIdx):
|
|
if rand(r, 1.0) > syncCommitteeRatio:
|
|
continue
|
|
|
|
let
|
|
validatorPrivKey = MockPrivKeys[validatorIdx]
|
|
signature = get_sync_committee_message_signature(
|
|
fork, genesis_validators_root,
|
|
slot, dag.head.root, validatorPrivKey)
|
|
msg = SyncCommitteeMessage(
|
|
slot: slot,
|
|
beacon_block_root: dag.head.root,
|
|
validator_index: uint64 validatorIdx,
|
|
signature: signature.toValidatorSig)
|
|
|
|
let res = waitFor noCancel dag.validateSyncCommitteeMessage(
|
|
quarantine,
|
|
batchCrypto,
|
|
syncCommitteePool,
|
|
msg,
|
|
subcommitteeIdx,
|
|
messagesTime,
|
|
false)
|
|
|
|
doAssert res.isOk
|
|
|
|
let (bid, cookedSig, positions) = res.get()
|
|
|
|
syncCommitteePool[].addSyncCommitteeMessage(
|
|
msg.slot,
|
|
bid,
|
|
msg.validator_index,
|
|
cookedSig,
|
|
subcommitteeIdx,
|
|
positions)
|
|
|
|
let
|
|
selectionProofSig = get_sync_committee_selection_proof(
|
|
fork, genesis_validators_root, slot, subcommitteeIdx,
|
|
validatorPrivKey).toValidatorSig
|
|
|
|
if is_sync_committee_aggregator(selectionProofSig):
|
|
aggregators.add Aggregator(
|
|
subcommitteeIdx: subcommitteeIdx,
|
|
validatorIdx: validatorIdx,
|
|
selectionProof: selectionProofSig)
|
|
|
|
for aggregator in aggregators:
|
|
var contribution: SyncCommitteeContribution
|
|
let contributionWasProduced = syncCommitteePool[].produceContribution(
|
|
slot, dag.head.bid, aggregator.subcommitteeIdx, contribution)
|
|
|
|
if contributionWasProduced:
|
|
let
|
|
contributionAndProof = ContributionAndProof(
|
|
aggregator_index: uint64 aggregator.validatorIdx,
|
|
contribution: contribution,
|
|
selection_proof: aggregator.selectionProof)
|
|
|
|
validatorPrivKey = MockPrivKeys[aggregator.validatorIdx]
|
|
|
|
signedContributionAndProof = SignedContributionAndProof(
|
|
message: contributionAndProof,
|
|
signature: get_contribution_and_proof_signature(
|
|
fork, genesis_validators_root, contributionAndProof,
|
|
validatorPrivKey).toValidatorSig)
|
|
|
|
res = waitFor noCancel dag.validateContribution(
|
|
quarantine,
|
|
batchCrypto,
|
|
syncCommitteePool,
|
|
signedContributionAndProof,
|
|
contributionsTime,
|
|
false)
|
|
if res.isOk():
|
|
let (bid, sig, _) = res.get
|
|
syncCommitteePool[].addContribution(
|
|
signedContributionAndProof, bid, sig)
|
|
else:
|
|
# We ignore duplicates / already-covered contributions
|
|
doAssert res.error()[0] == ValidationResult.Ignore
|
|
|
|
proc getNewBlock[T](
|
|
state: var ForkedHashedBeaconState, slot: Slot, cache: var StateCache): T =
|
|
let
|
|
finalizedEpochRef = dag.getFinalizedEpochRef()
|
|
proposerIdx = get_beacon_proposer_index(
|
|
state, cache, getStateField(state, slot)).get()
|
|
privKey = MockPrivKeys[proposerIdx]
|
|
eth1ProposalData = eth1Chain.getBlockProposalData(
|
|
state,
|
|
finalizedEpochRef.eth1_data,
|
|
finalizedEpochRef.eth1_deposit_index)
|
|
sync_aggregate =
|
|
syncCommitteePool[].produceSyncAggregate(dag.head.bid, slot)
|
|
hashedState =
|
|
when T is deneb.SignedBeaconBlock:
|
|
addr state.denebData
|
|
elif T is electra.SignedBeaconBlock:
|
|
addr state.electraData
|
|
elif T is fulu.SignedBeaconBlock:
|
|
addr state.fuluData
|
|
else:
|
|
static: doAssert false
|
|
message = makeSimulationBlock(
|
|
cfg,
|
|
hashedState[],
|
|
proposerIdx,
|
|
get_epoch_signature(
|
|
getStateField(state, fork),
|
|
getStateField(state, genesis_validators_root),
|
|
slot.epoch, privKey).toValidatorSig(),
|
|
eth1ProposalData.vote,
|
|
default(GraffitiBytes),
|
|
when T is electra.SignedBeaconBlock:
|
|
attPool.getElectraAttestationsForBlock(state, cache)
|
|
elif T is fulu.SignedBeaconBlock:
|
|
attPool.getElectraAttestationsForBlock(state, cache)
|
|
else:
|
|
attPool.getAttestationsForBlock(state, cache),
|
|
eth1ProposalData.deposits,
|
|
BeaconBlockValidatorChanges(),
|
|
sync_aggregate,
|
|
(when T is electra.SignedBeaconBlock:
|
|
default(electra.ExecutionPayloadForSigning)
|
|
elif T is fulu.SignedBeaconBlock:
|
|
default(fulu.ExecutionPayloadForSigning)
|
|
elif T is deneb.SignedBeaconBlock:
|
|
default(deneb.ExecutionPayloadForSigning)
|
|
else:
|
|
static: doAssert false),
|
|
static(default(SignedBLSToExecutionChangeList)),
|
|
noRollback,
|
|
cache)
|
|
|
|
var newBlock = T(message: message.get())
|
|
|
|
let blockRoot = withTimerRet(timers[tHashBlock]):
|
|
hash_tree_root(newBlock.message)
|
|
newBlock.root = blockRoot
|
|
# Careful, state no longer valid after here because of the await..
|
|
newBlock.signature = withTimerRet(timers[tSignBlock]):
|
|
get_block_signature(
|
|
getStateField(state, fork),
|
|
getStateField(state, genesis_validators_root),
|
|
newBlock.message.slot,
|
|
blockRoot, privKey).toValidatorSig()
|
|
|
|
newBlock
|
|
|
|
# TODO when withUpdatedState's state template doesn't conflict with chronos's
|
|
# HTTP server's state function, combine all proposeForkBlock functions into a
|
|
# single generic function. Until https://github.com/nim-lang/Nim/issues/20811
|
|
# is fixed, that generic function must take `blockRatio` as a parameter.
|
|
proc proposeDenebBlock(slot: Slot) =
|
|
if rand(r, 1.0) > blockRatio:
|
|
return
|
|
|
|
dag.withUpdatedState(tmpState[], dag.getBlockIdAtSlot(slot).expect("block")) do:
|
|
let
|
|
newBlock = getNewBlock[deneb.SignedBeaconBlock](updatedState, slot, cache)
|
|
added = dag.addHeadBlock(verifier, newBlock) do (
|
|
blckRef: BlockRef, signedBlock: deneb.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
attPool.addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
dag.updateHead(added[], quarantine[], [])
|
|
if dag.needStateCachesAndForkChoicePruning():
|
|
dag.pruneStateCachesDAG()
|
|
attPool.prune()
|
|
do:
|
|
raiseAssert "withUpdatedState failed"
|
|
|
|
proc proposeElectraBlock(slot: Slot) =
|
|
if rand(r, 1.0) > blockRatio:
|
|
return
|
|
|
|
dag.withUpdatedState(tmpState[], dag.getBlockIdAtSlot(slot).expect("block")) do:
|
|
let
|
|
newBlock = getNewBlock[electra.SignedBeaconBlock](updatedState, slot, cache)
|
|
added = dag.addHeadBlock(verifier, newBlock) do (
|
|
blckRef: BlockRef, signedBlock: electra.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
attPool.addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
dag.updateHead(added[], quarantine[], [])
|
|
if dag.needStateCachesAndForkChoicePruning():
|
|
dag.pruneStateCachesDAG()
|
|
attPool.prune()
|
|
do:
|
|
raiseAssert "withUpdatedState failed"
|
|
|
|
proc proposeFuluBlock(slot: Slot) =
|
|
if rand(r, 1.0) > blockRatio:
|
|
return
|
|
|
|
dag.withUpdatedState(tmpState[], dag.getBlockIdAtSlot(slot).expect("block")) do:
|
|
let
|
|
newBlock = getNewBlock[fulu.SignedBeaconBlock](updatedState, slot, cache)
|
|
added = dag.addHeadBlock(verifier, newBlock) do (
|
|
blckRef: BlockRef, signedBlock: fulu.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
attPool.addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
dag.updateHead(added[], quarantine[], [])
|
|
if dag.needStateCachesAndForkChoicePruning():
|
|
dag.pruneStateCachesDAG()
|
|
attPool.prune()
|
|
do:
|
|
raiseAssert "withUpdatedState failed"
|
|
|
|
var
|
|
lastEth1BlockAt = genesisTime
|
|
eth1BlockNum = 1000
|
|
|
|
for i in 0..<slots:
|
|
let
|
|
slot = Slot(i + 1)
|
|
t =
|
|
if slot.is_epoch: tEpoch
|
|
else: tBlock
|
|
now = genesisTime + float(slot * SECONDS_PER_SLOT)
|
|
|
|
while true:
|
|
let nextBlockTime = lastEth1BlockAt +
|
|
max(1.0, gauss(r, float cfg.SECONDS_PER_ETH1_BLOCK, 3.0))
|
|
if nextBlockTime > now:
|
|
break
|
|
|
|
inc eth1BlockNum
|
|
var eth1Block = Eth1Block(
|
|
hash: makeFakeHash(eth1BlockNum),
|
|
number: Eth1BlockNumber eth1BlockNum,
|
|
timestamp: Eth1BlockTimestamp nextBlockTime)
|
|
|
|
let newDeposits = int clamp(gauss(r, 5.0, 8.0), 0.0, 1000.0)
|
|
for i in 0 ..< newDeposits:
|
|
let validatorIdx = merkleizer.getChunkCount.int
|
|
let d = makeDeposit(validatorIdx, {skipBlsValidation})
|
|
eth1Block.deposits.add d
|
|
merkleizer.addChunk hash_tree_root(d).data
|
|
|
|
eth1Block.depositRoot = merkleizer.getDepositsRoot
|
|
eth1Block.depositCount = merkleizer.getChunkCount
|
|
|
|
eth1Chain.addBlock eth1Block
|
|
lastEth1BlockAt = nextBlockTime
|
|
|
|
if blockRatio > 0.0:
|
|
withTimer(timers[t]):
|
|
case dag.cfg.consensusForkAtEpoch(slot.epoch)
|
|
of ConsensusFork.Fulu: proposeFuluBlock(slot)
|
|
of ConsensusFork.Electra: proposeElectraBlock(slot)
|
|
of ConsensusFork.Deneb: proposeDenebBlock(slot)
|
|
of ConsensusFork.Phase0 .. ConsensusFork.Capella:
|
|
doAssert false
|
|
if attesterRatio > 0.0:
|
|
withTimer(timers[tAttest]):
|
|
handleAttestations(slot)
|
|
if syncCommitteeRatio > 0.0:
|
|
withTimer(timers[tSyncCommittees]):
|
|
handleSyncCommitteeActions(slot)
|
|
|
|
syncCommitteePool[].pruneData(slot)
|
|
|
|
# TODO if attestation pool was smarter, it would include older attestations
|
|
# too!
|
|
verifyConsensus(dag.headState, attesterRatio * blockRatio)
|
|
|
|
if t == tEpoch:
|
|
echo ". slot: ", shortLog(slot), " epoch: ", shortLog(slot.epoch)
|
|
else:
|
|
try:
|
|
write(stdout, ".")
|
|
except IOError:
|
|
discard
|
|
flushFile(stdout)
|
|
|
|
if replay:
|
|
withTimer(timers[tReplay]):
|
|
var cache = StateCache()
|
|
doAssert dag.updateState(
|
|
replayState[], dag.getBlockIdAtSlot(Slot(slots)).expect("block"),
|
|
false, cache, dag.updateFlags)
|
|
|
|
echo "Done!"
|
|
|
|
printTimers(dag.headState, attesters, true, timers)
|