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Fix estimate gas for old runtimes #1409

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merged 5 commits into from
May 13, 2024
Merged

Fix estimate gas for old runtimes #1409

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53eba3e
max_fee_per_gas should be set to None for old runtimes
librelois Apr 29, 2024
25aaaf3
estimate max transaction length for proof size base cost
librelois Apr 30, 2024
ec8b9ab
import GasWeightMapping trait
librelois Apr 30, 2024
0f56abe
fix compilation errors
librelois Apr 30, 2024
7bb579d
remove unused imports
librelois Apr 30, 2024
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10 changes: 3 additions & 7 deletions client/rpc/src/eth/execute.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -100,12 +100,7 @@ where
let details = fee_details(gas_price, max_fee_per_gas, max_priority_fee_per_gas)?;
(
details.gas_price,
// Old runtimes require max_fee_per_gas to be None for non transactional calls.
if details.max_fee_per_gas == Some(U256::zero()) {
None
} else {
details.max_fee_per_gas
},
details.max_fee_per_gas,
details.max_priority_fee_per_gas,
)
};
Expand Down Expand Up @@ -1051,7 +1046,8 @@ fn fee_details(
// Default to EIP-1559 transaction
_ => Ok(FeeDetails {
gas_price: None,
max_fee_per_gas: Some(U256::zero()),
// Old runtimes require max_fee_per_gas to be None for non transactional calls.
max_fee_per_gas: None,
max_priority_fee_per_gas: Some(U256::zero()),
fee_cap: U256::zero(),
}),
Expand Down
114 changes: 83 additions & 31 deletions template/runtime/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,10 +46,7 @@ use pallet_transaction_payment::{ConstFeeMultiplier, CurrencyAdapter};
use fp_account::EthereumSignature;
use fp_evm::weight_per_gas;
use fp_rpc::TransactionStatus;
use pallet_ethereum::{
Call::transact, PostLogContent, Transaction as EthereumTransaction, TransactionAction,
TransactionData,
};
use pallet_ethereum::{Call::transact, PostLogContent, Transaction as EthereumTransaction};
use pallet_evm::{
Account as EVMAccount, EnsureAccountId20, FeeCalculator, IdentityAddressMapping, Runner,
};
Expand Down Expand Up @@ -791,6 +788,8 @@ impl_runtime_apis! {
estimate: bool,
access_list: Option<Vec<(H160, Vec<H256>)>>,
) -> Result<pallet_evm::CallInfo, sp_runtime::DispatchError> {
use pallet_evm::GasWeightMapping as _;

let config = if estimate {
let mut config = <Runtime as pallet_evm::Config>::config().clone();
config.estimate = true;
Expand All @@ -799,20 +798,45 @@ impl_runtime_apis! {
None
};

let gas_limit = gas_limit.min(u64::MAX.into());
let transaction_data = TransactionData::new(
TransactionAction::Call(to),
data.clone(),
nonce.unwrap_or_default(),
gas_limit,
None,
max_fee_per_gas,
max_priority_fee_per_gas,
value,
Some(<Runtime as pallet_evm::Config>::ChainId::get()),
access_list.clone().unwrap_or_default(),
);
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@boundless-forest boundless-forest May 6, 2024 •
edited
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Sorry for the delay in replying(just come back from holiday). I come up with another idea is that we can pass default value to the TransactionData::new(xxx) for these field with Option<T> type, such as max_fee_per_gas and max_priority_fee_per_gas, instead of None. This way can also meet our needs and looks cleaner. What do you think? @librelois

let (weight_limit, proof_size_base_cost) = pallet_ethereum::Pallet::<Runtime>::transaction_weight(&transaction_data);
// Estimated encoded transaction size must be based on the heaviest transaction
// type (EIP1559Transaction) to be compatible with all transaction types.
let mut estimated_transaction_len = data.len() +
// pallet ethereum index: 1
// transact call index: 1
// Transaction enum variant: 1
// chain_id 8 bytes
// nonce: 32
// max_priority_fee_per_gas: 32
// max_fee_per_gas: 32
// gas_limit: 32
// action: 21 (enum varianrt + call address)
// value: 32
// access_list: 1 (empty vec size)
// 65 bytes signature
258;

if access_list.is_some() {
estimated_transaction_len += access_list.encoded_size();
}


let gas_limit = if gas_limit > U256::from(u64::MAX) {
u64::MAX
} else {
gas_limit.low_u64()
};
let without_base_extrinsic_weight = true;

let (weight_limit, proof_size_base_cost) =
match <Runtime as pallet_evm::Config>::GasWeightMapping::gas_to_weight(
gas_limit,
without_base_extrinsic_weight
) {
weight_limit if weight_limit.proof_size() > 0 => {
(Some(weight_limit), Some(estimated_transaction_len as u64))
}
_ => (None, None),
};

<Runtime as pallet_evm::Config>::Runner::call(
from,
Expand Down Expand Up @@ -843,6 +867,8 @@ impl_runtime_apis! {
estimate: bool,
access_list: Option<Vec<(H160, Vec<H256>)>>,
) -> Result<pallet_evm::CreateInfo, sp_runtime::DispatchError> {
use pallet_evm::GasWeightMapping as _;

let config = if estimate {
let mut config = <Runtime as pallet_evm::Config>::config().clone();
config.estimate = true;
Expand All @@ -851,19 +877,45 @@ impl_runtime_apis! {
None
};

let transaction_data = TransactionData::new(
TransactionAction::Create,
data.clone(),
nonce.unwrap_or_default(),
gas_limit,
None,
max_fee_per_gas,
max_priority_fee_per_gas,
value,
Some(<Runtime as pallet_evm::Config>::ChainId::get()),
access_list.clone().unwrap_or_default(),
);
let (weight_limit, proof_size_base_cost) = pallet_ethereum::Pallet::<Runtime>::transaction_weight(&transaction_data);

let mut estimated_transaction_len = data.len() +
// from: 20
// value: 32
// gas_limit: 32
// nonce: 32
// 1 byte transaction action variant
// chain id 8 bytes
// 65 bytes signature
190;

if max_fee_per_gas.is_some() {
estimated_transaction_len += 32;
}
if max_priority_fee_per_gas.is_some() {
estimated_transaction_len += 32;
}
if access_list.is_some() {
estimated_transaction_len += access_list.encoded_size();
}


let gas_limit = if gas_limit > U256::from(u64::MAX) {
u64::MAX
} else {
gas_limit.low_u64()
};
let without_base_extrinsic_weight = true;

let (weight_limit, proof_size_base_cost) =
match <Runtime as pallet_evm::Config>::GasWeightMapping::gas_to_weight(
gas_limit,
without_base_extrinsic_weight
) {
weight_limit if weight_limit.proof_size() > 0 => {
(Some(weight_limit), Some(estimated_transaction_len as u64))
}
_ => (None, None),
};

<Runtime as pallet_evm::Config>::Runner::create(
from,
Expand Down