85 lines
2.7 KiB
Nim
85 lines
2.7 KiB
Nim
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# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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import
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std/[sets],
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../../db/accounts_cache,
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../../forks,
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../../transaction/call_evm,
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../../vm_state,
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../../vm_types,
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../validate,
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./executor_helpers,
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chronicles,
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eth/common
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proc eip1559TxNormalization(tx: Transaction): Transaction =
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result = tx
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if tx.txType < TxEip1559:
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result.maxPriorityFee = tx.gasPrice
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result.maxFee = tx.gasPrice
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proc processTransaction*(tx: Transaction, sender: EthAddress, vmState: BaseVMState, fork: Fork): GasInt =
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## Process the transaction, write the results to db.
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## Returns amount of ETH to be rewarded to miner
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trace "Sender", sender
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trace "txHash", rlpHash = tx.rlpHash
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var tx = eip1559TxNormalization(tx)
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var priorityFee: GasInt
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if fork >= FkLondon:
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# priority fee is capped because the base fee is filled first
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let baseFee = vmState.blockHeader.baseFee.truncate(GasInt)
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priorityFee = min(tx.maxPriorityFee, tx.maxFee - baseFee)
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# signer pays both the priority fee and the base fee
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# tx.gasPrice now is the effective gasPrice
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tx.gasPrice = priorityFee + baseFee
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let miner = vmState.coinbase()
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if validateTransaction(vmState, tx, sender, fork):
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result = txCallEvm(tx, sender, vmState, fork)
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# miner fee
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if fork >= FkLondon:
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# miner only receives the priority fee;
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# note that the base fee is not given to anyone (it is burned)
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let txFee = result.u256 * priorityFee.u256
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vmState.accountDb.addBalance(miner, txFee)
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else:
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let txFee = result.u256 * tx.gasPrice.u256
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vmState.accountDb.addBalance(miner, txFee)
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vmState.cumulativeGasUsed += result
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vmState.mutateStateDB:
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for deletedAccount in vmState.selfDestructs:
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db.deleteAccount deletedAccount
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if fork >= FkSpurious:
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vmState.touchedAccounts.incl(miner)
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# EIP158/161 state clearing
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for account in vmState.touchedAccounts:
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if db.accountExists(account) and db.isEmptyAccount(account):
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debug "state clearing", account
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db.deleteAccount(account)
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if vmState.generateWitness:
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vmState.accountDb.collectWitnessData()
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vmState.accountDb.persist(clearCache = false)
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proc processTransaction*(tx: Transaction,
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sender: EthAddress, vmState: BaseVMState): GasInt =
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tx.processTransaction(sender, vmState, vmState.getFork)
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# End
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