nimbus-eth1/nimbus/core/executor/calculate_reward.nim

72 lines
1.9 KiB
Nim

# Nimbus
# Copyright (c) 2018-2024 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
import
../../db/ledger,
../../common/common,
../../evm/state,
../../evm/types
{.push raises: [].}
# ------------------------------------------------------------------------------
# Block reward helpers
# ------------------------------------------------------------------------------
func eth(n: int): UInt256 {.compileTime.} =
n.u256 * pow(10.u256, 18)
const
eth5 = 5.eth
eth3 = 3.eth
eth2 = 2.eth
eth0 = 0.u256
BlockRewards: array[EVMFork, UInt256] = [
eth5, # Frontier
eth5, # Homestead
eth5, # Tangerine
eth5, # Spurious
eth3, # Byzantium
eth2, # Constantinople
eth2, # Petersburg
eth2, # Istanbul
eth2, # Berlin
eth2, # London
eth0, # Paris
eth0, # Shanghai
eth0, # Cancun
eth0, # Prague
]
proc calculateReward*(vmState: BaseVMState; account: EthAddress;
number: BlockNumber; uncles: openArray[BlockHeader]) =
let blockReward = BlockRewards[vmState.fork]
var mainReward = blockReward
for uncle in uncles:
var uncleReward = uncle.number.u256 + 8.u256
uncleReward -= number.u256
uncleReward = uncleReward * blockReward
uncleReward = uncleReward div 8.u256
vmState.mutateStateDB:
db.addBalance(uncle.coinbase, uncleReward)
mainReward += blockReward div 32.u256
vmState.mutateStateDB:
db.addBalance(account, mainReward)
proc calculateReward*(vmState: BaseVMState;
header: BlockHeader; uncles: openArray[BlockHeader]) =
vmState.calculateReward(header.coinbase, header.number, uncles)
# End