2022-02-17 11:53:55 +00:00
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# beacon_chain
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# Copyright (c) 2022 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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2022-01-17 12:58:33 +00:00
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import
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2022-01-23 19:41:29 +00:00
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re, strutils, os, math,
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stew/bitops2,
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../beacon_chain/spec/[
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datatypes/base,
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datatypes/phase0,
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datatypes/altair,
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datatypes/bellatrix,
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beaconstate,
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state_transition_epoch,
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state_transition_block,
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signatures],
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../beacon_chain/consensus_object_pools/block_pools_types
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type
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RewardsAndPenalties* = object
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source_outcome*: int64
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max_source_reward*: Gwei
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target_outcome*: int64
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max_target_reward*: Gwei
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head_outcome*: int64
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max_head_reward*: Gwei
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inclusion_delay_outcome*: int64
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max_inclusion_delay_reward*: Gwei
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sync_committee_outcome*: int64
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max_sync_committee_reward*: Gwei
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proposer_outcome*: int64
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inactivity_penalty*: Gwei
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slashing_outcome*: int64
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deposits*: Gwei
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inclusion_delay*: Option[uint64]
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ParticipationFlags* = object
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currentEpochParticipation: EpochParticipationFlags
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previousEpochParticipation: EpochParticipationFlags
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PubkeyToIndexTable = Table[ValidatorPubKey, int]
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AuxiliaryState* = object
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epochParticipationFlags: ParticipationFlags
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pubkeyToIndex: PubkeyToIndexTable
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const
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epochInfoFileNameDigitsCount = 8
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epochFileNameExtension* = ".epoch"
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epochNumberRegexStr = r"\d{" & $epochInfoFileNameDigitsCount & r"}\"
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func copyParticipationFlags*(auxiliaryState: var AuxiliaryState,
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forkedState: ForkedHashedBeaconState) =
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withState(forkedState):
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when stateFork > BeaconStateFork.Phase0:
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template flags: untyped = auxiliaryState.epochParticipationFlags
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flags.currentEpochParticipation = state.data.current_epoch_participation
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flags.previousEpochParticipation = state.data.previous_epoch_participation
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2022-01-31 12:06:16 +00:00
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proc getUnaggregatedFilesEpochRange*(dir: string):
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tuple[firstEpoch, lastEpoch: Epoch] =
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const epochInfoFileNameRegexStr =
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epochNumberRegexStr & epochFileNameExtension
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var pattern {.global.}: Regex
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once: pattern = re(epochInfoFileNameRegexStr)
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var smallestEpochFileName =
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'9'.repeat(epochInfoFileNameDigitsCount) & epochFileNameExtension
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var largestEpochFileName =
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'0'.repeat(epochInfoFileNameDigitsCount) & epochFileNameExtension
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for (_, fn) in walkDir(dir.string, relative = true):
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if fn.match(pattern):
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if fn < smallestEpochFileName:
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smallestEpochFileName = fn
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if fn > largestEpochFileName:
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largestEpochFileName = fn
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result.firstEpoch = parseUInt(
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smallestEpochFileName[0 ..< epochInfoFileNameDigitsCount]).Epoch
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result.lastEpoch = parseUInt(
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largestEpochFileName[0 ..< epochInfoFileNameDigitsCount]).Epoch
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2022-01-31 12:06:16 +00:00
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proc getUnaggregatedFilesLastEpoch*(dir: string): Epoch =
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dir.getUnaggregatedFilesEpochRange.lastEpoch
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proc getAggregatedFilesLastEpoch*(dir: string): Epoch =
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const epochInfoFileNameRegexStr =
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epochNumberRegexStr & "_" & epochNumberRegexStr & epochFileNameExtension
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var pattern {.global.}: Regex
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once: pattern = re(epochInfoFileNameRegexStr)
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var largestEpochInFileName = 0'u
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for (_, fn) in walkDir(dir.string, relative = true):
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if fn.match(pattern):
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let fileLastEpoch = parseUint(
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fn[epochInfoFileNameDigitsCount + 1 .. 2 * epochInfoFileNameDigitsCount])
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if fileLastEpoch > largestEpochInFileName:
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largestEpochInFileName = fileLastEpoch
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largestEpochInFileName.Epoch
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func epochAsString*(epoch: Epoch): string =
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let strEpoch = $epoch
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'0'.repeat(epochInfoFileNameDigitsCount - strEpoch.len) & strEpoch
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func getFilePathForEpoch*(epoch: Epoch, dir: string): string =
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dir / epochAsString(epoch) & epochFileNameExtension
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func getFilePathForEpochs*(startEpoch, endEpoch: Epoch, dir: string): string =
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let fileName = epochAsString(startEpoch) & "_" &
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epochAsString(endEpoch) & epochFileNameExtension
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dir / fileName
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func getBlockRange*(dag: ChainDAGRef, start, ends: Slot): seq[BlockRef] =
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# Range of block in reverse order
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doAssert start < ends
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result = newSeqOfCap[BlockRef](ends - start)
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var current = dag.head
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while current != nil:
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if current.slot < ends:
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if current.slot < start or current.slot == 0: # skip genesis
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break
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else:
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result.add current
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current = current.parent
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func getOutcome(delta: RewardDelta): int64 =
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delta.rewards.int64 - delta.penalties.int64
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func collectSlashings(
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rewardsAndPenalties: var seq[RewardsAndPenalties],
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state: ForkyBeaconState, total_balance: Gwei) =
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let
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epoch = get_current_epoch(state)
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adjusted_total_slashing_balance = get_adjusted_total_slashing_balance(
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state, total_balance)
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for index in 0 ..< state.validators.len:
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let validator = unsafeAddr state.validators.asSeq()[index]
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if slashing_penalty_applies(validator[], epoch):
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rewardsAndPenalties[index].slashing_outcome +=
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validator[].get_slashing_penalty(
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adjusted_total_slashing_balance, total_balance).int64
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func getFinalizedCheckpoint(state: ForkyBeaconState,
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total_active_balance,
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previous_epoch_target_balance,
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current_epoch_target_balance: Gwei):
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Checkpoint =
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if get_current_epoch(state) <= GENESIS_EPOCH + 1:
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return state.finalized_checkpoint
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let
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current_epoch = get_current_epoch(state)
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old_previous_justified_checkpoint = state.previous_justified_checkpoint
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old_current_justified_checkpoint = state.current_justified_checkpoint
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2022-01-29 13:53:31 +00:00
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# https://github.com/ethereum/consensus-specs/blob/v1.1.9/specs/phase0/beacon-chain.md#misc
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const JUSTIFICATION_BITS_LENGTH = 4
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var justification_bits = JustificationBits(
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(uint8(state.justification_bits) shl 1) and
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uint8((2^JUSTIFICATION_BITS_LENGTH) - 1))
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if previous_epoch_target_balance * 3 >= total_active_balance * 2:
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uint8(justification_bits).setBit 1
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if current_epoch_target_balance * 3 >= total_active_balance * 2:
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uint8(justification_bits).setBit 0
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# Process finalizations
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let bitfield = uint8(justification_bits)
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## The 2nd/3rd/4th most recent epochs are justified, the 2nd using the 4th
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## as source
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if (bitfield and 0b1110) == 0b1110 and
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old_previous_justified_checkpoint.epoch + 3 == current_epoch:
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return old_previous_justified_checkpoint
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## The 2nd/3rd most recent epochs are justified, the 2nd using the 3rd as
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## source
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if (bitfield and 0b110) == 0b110 and
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old_previous_justified_checkpoint.epoch + 2 == current_epoch:
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return old_previous_justified_checkpoint
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## The 1st/2nd/3rd most recent epochs are justified, the 1st using the 3rd as
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## source
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if (bitfield and 0b111) == 0b111 and
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old_current_justified_checkpoint.epoch + 2 == current_epoch:
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return old_current_justified_checkpoint
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## The 1st/2nd most recent epochs are justified, the 1st using the 2nd as
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## source
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if (bitfield and 0b11) == 0b11 and
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old_current_justified_checkpoint.epoch + 1 == current_epoch:
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return old_current_justified_checkpoint
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state.finalized_checkpoint
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func getFinalizedCheckpoint(state: phase0.BeaconState, balances: TotalBalances):
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Checkpoint =
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getFinalizedCheckpoint(state, balances.current_epoch,
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balances.previous_epoch_target_attesters,
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balances.current_epoch_target_attesters)
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func getFinalizedCheckpoint(
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state: altair.BeaconState | bellatrix.BeaconState,
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balances: UnslashedParticipatingBalances): Checkpoint =
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getFinalizedCheckpoint(state, balances.current_epoch,
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balances.previous_epoch[TIMELY_TARGET_FLAG_INDEX],
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balances.current_epoch_TIMELY_TARGET)
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2022-01-23 19:41:29 +00:00
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func getFinalityDelay*(state: ForkyBeaconState,
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finalizedCheckpoint: Checkpoint): uint64 =
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state.get_previous_epoch - finalizedCheckpoint.epoch
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func collectEpochRewardsAndPenalties*(
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rewardsAndPenalties: var seq[RewardsAndPenalties],
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state: phase0.BeaconState, cache: var StateCache, cfg: RuntimeConfig,
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flags: UpdateFlags) =
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if get_current_epoch(state) == GENESIS_EPOCH:
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return
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var info: phase0.EpochInfo
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info.init(state)
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info.process_attestations(state, cache)
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doAssert info.validators.len == state.validators.len
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rewardsAndPenalties.setLen(state.validators.len)
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let
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finalized_checkpoint = state.getFinalizedCheckpoint(info.balances)
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finality_delay = getFinalityDelay(state, finalized_checkpoint)
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total_balance = info.balances.current_epoch
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total_balance_sqrt = integer_squareroot(total_balance)
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for index, validator in info.validators.pairs:
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if not is_eligible_validator(validator):
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continue
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let base_reward = get_base_reward_sqrt(
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state, index.ValidatorIndex, total_balance_sqrt)
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template get_attestation_component_reward_helper(attesting_balance: Gwei): Gwei =
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get_attestation_component_reward(attesting_balance,
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info.balances.current_epoch, base_reward.uint64, finality_delay)
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template rp: untyped = rewardsAndPenalties[index]
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rp.source_outcome = get_source_delta(
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validator, base_reward, info.balances, finality_delay).getOutcome
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rp.max_source_reward = get_attestation_component_reward_helper(
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info.balances.previous_epoch_attesters)
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rp.target_outcome = get_target_delta(
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validator, base_reward, info.balances, finality_delay).getOutcome
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rp.max_target_reward = get_attestation_component_reward_helper(
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info.balances.previous_epoch_target_attesters)
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rp.head_outcome = get_head_delta(
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validator, base_reward, info.balances, finality_delay).getOutcome
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rp.max_head_reward = get_attestation_component_reward_helper(
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info.balances.previous_epoch_head_attesters)
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let (inclusion_delay_delta, proposer_delta) = get_inclusion_delay_delta(
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validator, base_reward)
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rp.inclusion_delay_outcome = inclusion_delay_delta.getOutcome
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rp.max_inclusion_delay_reward =
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base_reward - state_transition_epoch.get_proposer_reward(base_reward)
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rp.inactivity_penalty = get_inactivity_penalty_delta(
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validator, base_reward, finality_delay).penalties
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if proposer_delta.isSome:
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let proposer_index = proposer_delta.get[0]
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if proposer_index < info.validators.lenu64:
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rewardsAndPenalties[proposer_index].proposer_outcome +=
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proposer_delta.get[1].getOutcome
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rewardsAndPenalties.collectSlashings(state, info.balances.current_epoch)
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2022-02-17 11:53:55 +00:00
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func collectEpochRewardsAndPenalties*(
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rewardsAndPenalties: var seq[RewardsAndPenalties],
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2022-01-18 13:36:52 +00:00
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state: altair.BeaconState | bellatrix.BeaconState,
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cache: var StateCache, cfg: RuntimeConfig, flags: UpdateFlags) =
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2022-01-17 12:58:33 +00:00
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if get_current_epoch(state) == GENESIS_EPOCH:
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return
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var info: altair.EpochInfo
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info.init(state)
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doAssert info.validators.len == state.validators.len
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rewardsAndPenalties.setLen(state.validators.len)
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let
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total_active_balance = info.balances.current_epoch
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base_reward_per_increment = get_base_reward_per_increment(
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total_active_balance)
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finalized_checkpoint = state.getFinalizedCheckpoint(info.balances)
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finality_delay = getFinalityDelay(state, finalized_checkpoint)
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for flag_index in 0 ..< PARTICIPATION_FLAG_WEIGHTS.len:
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for validator_index, delta in get_flag_index_deltas(
|
2022-01-27 16:37:30 +00:00
|
|
|
state, flag_index, base_reward_per_increment, info, finality_delay):
|
2022-01-17 12:58:33 +00:00
|
|
|
template rp: untyped = rewardsAndPenalties[validator_index]
|
|
|
|
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|
|
let
|
|
|
|
base_reward = get_base_reward_increment(
|
|
|
|
state, validator_index, base_reward_per_increment)
|
|
|
|
active_increments = get_active_increments(info)
|
|
|
|
unslashed_participating_increment =
|
|
|
|
get_unslashed_participating_increment(info, flag_index)
|
|
|
|
max_flag_index_reward = get_flag_index_reward(
|
|
|
|
state, base_reward, active_increments,
|
|
|
|
unslashed_participating_increment,
|
2022-01-27 16:37:30 +00:00
|
|
|
PARTICIPATION_FLAG_WEIGHTS[flag_index].uint64,
|
|
|
|
finalityDelay)
|
2022-01-17 12:58:33 +00:00
|
|
|
|
|
|
|
case flag_index
|
|
|
|
of TIMELY_SOURCE_FLAG_INDEX:
|
|
|
|
rp.source_outcome = delta.getOutcome
|
|
|
|
rp.max_source_reward = max_flag_index_reward
|
|
|
|
of TIMELY_TARGET_FLAG_INDEX:
|
|
|
|
rp.target_outcome = delta.getOutcome
|
|
|
|
rp.max_target_reward = max_flag_index_reward
|
|
|
|
of TIMELY_HEAD_FLAG_INDEX:
|
|
|
|
rp.head_outcome = delta.getOutcome
|
|
|
|
rp.max_head_reward = max_flag_index_reward
|
|
|
|
else:
|
|
|
|
raiseAssert(&"Unknown flag index {flag_index}.")
|
|
|
|
|
|
|
|
for validator_index, penalty in get_inactivity_penalty_deltas(
|
|
|
|
cfg, state, info):
|
|
|
|
rewardsAndPenalties[validator_index].inactivity_penalty += penalty
|
|
|
|
|
|
|
|
rewardsAndPenalties.collectSlashings(state, info.balances.current_epoch)
|
|
|
|
|
2022-02-17 11:53:55 +00:00
|
|
|
func collectFromSlashedValidator(
|
2022-01-17 12:58:33 +00:00
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
state: ForkyBeaconState, slashedIndex, proposerIndex: ValidatorIndex) =
|
|
|
|
template slashed_validator: untyped = state.validators[slashedIndex]
|
|
|
|
let slashingPenalty = get_slashing_penalty(state, slashed_validator.effective_balance)
|
|
|
|
let whistleblowerReward = get_whistleblower_reward(slashed_validator.effective_balance)
|
|
|
|
rewardsAndPenalties[slashedIndex].slashing_outcome -= slashingPenalty.int64
|
|
|
|
rewardsAndPenalties[proposerIndex].slashing_outcome += whistleblowerReward.int64
|
|
|
|
|
2022-02-17 11:53:55 +00:00
|
|
|
func collectFromProposerSlashings(
|
2022-01-17 12:58:33 +00:00
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock) =
|
|
|
|
withStateAndBlck(forkedState, forkedBlock):
|
|
|
|
for proposer_slashing in blck.message.body.proposer_slashings:
|
|
|
|
doAssert check_proposer_slashing(state.data, proposer_slashing, {}).isOk
|
|
|
|
let slashedIndex = proposer_slashing.signed_header_1.message.proposer_index
|
|
|
|
rewardsAndPenalties.collectFromSlashedValidator(state.data,
|
|
|
|
slashedIndex.ValidatorIndex, blck.message.proposer_index.ValidatorIndex)
|
|
|
|
|
2022-02-17 11:53:55 +00:00
|
|
|
func collectFromAttesterSlashings(
|
2022-01-17 12:58:33 +00:00
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock) =
|
|
|
|
withStateAndBlck(forkedState, forkedBlock):
|
|
|
|
for attester_slashing in blck.message.body.attester_slashings:
|
|
|
|
let attester_slashing_validity = check_attester_slashing(
|
|
|
|
state.data, attester_slashing, {})
|
|
|
|
doAssert attester_slashing_validity.isOk
|
|
|
|
for slashedIndex in attester_slashing_validity.value:
|
|
|
|
rewardsAndPenalties.collectFromSlashedValidator(
|
|
|
|
state.data, slashedIndex, blck.message.proposer_index.ValidatorIndex)
|
|
|
|
|
2022-02-17 11:53:55 +00:00
|
|
|
func collectFromAttestations(
|
2022-01-17 12:58:33 +00:00
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock,
|
|
|
|
epochParticipationFlags: var ParticipationFlags,
|
|
|
|
cache: var StateCache) =
|
|
|
|
withStateAndBlck(forkedState, forkedBlock):
|
|
|
|
when stateFork > BeaconStateFork.Phase0:
|
|
|
|
let base_reward_per_increment = get_base_reward_per_increment(
|
|
|
|
get_total_active_balance(state.data, cache))
|
|
|
|
doAssert base_reward_per_increment > 0
|
|
|
|
for attestation in blck.message.body.attestations:
|
|
|
|
doAssert check_attestation(state.data, attestation, {}, cache).isOk
|
|
|
|
let proposerReward =
|
|
|
|
if attestation.data.target.epoch == get_current_epoch(state.data):
|
|
|
|
get_proposer_reward(
|
|
|
|
state.data, attestation, base_reward_per_increment, cache,
|
|
|
|
epochParticipationFlags.currentEpochParticipation)
|
|
|
|
else:
|
|
|
|
get_proposer_reward(
|
|
|
|
state.data, attestation, base_reward_per_increment, cache,
|
|
|
|
epochParticipationFlags.previousEpochParticipation)
|
|
|
|
rewardsAndPenalties[blck.message.proposer_index].proposer_outcome +=
|
|
|
|
proposerReward.int64
|
|
|
|
let inclusionDelay = state.data.slot - attestation.data.slot
|
|
|
|
for index in get_attesting_indices(
|
|
|
|
state.data, attestation.data, attestation.aggregation_bits, cache):
|
|
|
|
rewardsAndPenalties[index].inclusion_delay = some(inclusionDelay.uint64)
|
|
|
|
|
|
|
|
proc collectFromDeposits(
|
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock,
|
|
|
|
pubkeyToIndex: var PubkeyToIndexTable,
|
|
|
|
cfg: RuntimeConfig) =
|
|
|
|
withStateAndBlck(forkedState, forkedBlock):
|
|
|
|
for deposit in blck.message.body.deposits:
|
|
|
|
let pubkey = deposit.data.pubkey
|
|
|
|
let amount = deposit.data.amount
|
|
|
|
var index = findValidatorIndex(state.data, pubkey)
|
|
|
|
if index == -1:
|
|
|
|
index = pubkeyToIndex.getOrDefault(pubkey, -1)
|
|
|
|
if index != -1:
|
|
|
|
rewardsAndPenalties[index].deposits += amount
|
|
|
|
elif verify_deposit_signature(cfg, deposit.data):
|
|
|
|
pubkeyToIndex[pubkey] = rewardsAndPenalties.len
|
|
|
|
rewardsAndPenalties.add(
|
|
|
|
RewardsAndPenalties(deposits: amount))
|
|
|
|
|
2022-02-17 11:53:55 +00:00
|
|
|
func collectFromSyncAggregate(
|
2022-01-17 12:58:33 +00:00
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock,
|
|
|
|
cache: var StateCache) =
|
|
|
|
withStateAndBlck(forkedState, forkedBlock):
|
|
|
|
when stateFork > BeaconStateFork.Phase0:
|
|
|
|
let total_active_balance = get_total_active_balance(state.data, cache)
|
|
|
|
let participant_reward = get_participant_reward(total_active_balance)
|
|
|
|
let proposer_reward =
|
|
|
|
state_transition_block.get_proposer_reward(participant_reward)
|
|
|
|
let indices = get_sync_committee_cache(state.data, cache).current_sync_committee
|
|
|
|
|
|
|
|
template aggregate: untyped = blck.message.body.sync_aggregate
|
|
|
|
|
|
|
|
doAssert indices.len == SYNC_COMMITTEE_SIZE
|
|
|
|
doAssert aggregate.sync_committee_bits.len == SYNC_COMMITTEE_SIZE
|
|
|
|
doAssert state.data.current_sync_committee.pubkeys.len == SYNC_COMMITTEE_SIZE
|
|
|
|
|
|
|
|
for i in 0 ..< SYNC_COMMITTEE_SIZE:
|
|
|
|
rewardsAndPenalties[indices[i]].max_sync_committee_reward +=
|
|
|
|
participant_reward
|
|
|
|
if aggregate.sync_committee_bits[i]:
|
|
|
|
rewardsAndPenalties[indices[i]].sync_committee_outcome +=
|
|
|
|
participant_reward.int64
|
|
|
|
rewardsAndPenalties[blck.message.proposer_index].proposer_outcome +=
|
|
|
|
proposer_reward.int64
|
|
|
|
else:
|
|
|
|
rewardsAndPenalties[indices[i]].sync_committee_outcome -=
|
|
|
|
participant_reward.int64
|
|
|
|
|
|
|
|
proc collectBlockRewardsAndPenalties*(
|
|
|
|
rewardsAndPenalties: var seq[RewardsAndPenalties],
|
|
|
|
forkedState: ForkedHashedBeaconState,
|
|
|
|
forkedBlock: ForkedTrustedSignedBeaconBlock,
|
|
|
|
auxiliaryState: var AuxiliaryState,
|
|
|
|
cache: var StateCache, cfg: RuntimeConfig) =
|
|
|
|
rewardsAndPenalties.collectFromProposerSlashings(forkedState, forkedBlock)
|
|
|
|
rewardsAndPenalties.collectFromAttesterSlashings(forkedState, forkedBlock)
|
|
|
|
rewardsAndPenalties.collectFromAttestations(
|
|
|
|
forkedState, forkedBlock, auxiliaryState.epochParticipationFlags, cache)
|
|
|
|
rewardsAndPenalties.collectFromDeposits(
|
|
|
|
forkedState, forkedBlock, auxiliaryState.pubkeyToIndex, cfg)
|
|
|
|
# This table is needed only to resolve double deposits in the same block, so
|
|
|
|
# it can be cleared after processing all deposits for the current block.
|
|
|
|
auxiliaryState.pubkeyToIndex.clear
|
|
|
|
rewardsAndPenalties.collectFromSyncAggregate(forkedState, forkedBlock, cache)
|
|
|
|
|
|
|
|
func serializeToCsv*(rp: RewardsAndPenalties,
|
|
|
|
avgInclusionDelay = none(float)): string =
|
|
|
|
for name, value in fieldPairs(rp):
|
|
|
|
if value isnot Option:
|
|
|
|
result &= $value & ","
|
|
|
|
if avgInclusionDelay.isSome:
|
|
|
|
result.addFloat(avgInclusionDelay.get)
|
|
|
|
elif rp.inclusion_delay.isSome:
|
|
|
|
result &= $rp.inclusion_delay.get
|
|
|
|
result &= "\n"
|