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fix: Eth JSON-RPC api: handle messages with gasFeeCap less than baseFee

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This commit is contained in:
ychiao 2023-04-03 17:25:41 -04:00 committed by Maciej Witowski
parent 79be473e75
commit 8695fe342f
2 changed files with 8 additions and 3 deletions
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9
chain/types/message.go
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@ -220,12 +220,17 @@ func (m *Message) ValidForBlockInclusion(minGas int64, version network.Version)
}
// EffectiveGasPremium returns the effective gas premium claimable by the miner
// given the supplied base fee.
// given the supplied base fee. This method is not used anywhere except the Eth API.
//
// Filecoin clamps the gas premium at GasFeeCap - BaseFee, if lower than the
// specified premium.
// specified premium. Returns 0 if GasFeeCap is less than BaseFee.
func (m *Message) EffectiveGasPremium(baseFee abi.TokenAmount) abi.TokenAmount {
available := big.Sub(m.GasFeeCap, baseFee)
// It's possible that storage providers may include messages with gasFeeCap less than the baseFee
// In such cases, their reward should be viewed as zero
if available.LessThan(big.NewInt(0)) {
available = big.NewInt(0)
}
if big.Cmp(m.GasPremium, available) <= 0 {
return m.GasPremium
}

2
node/impl/full/eth_test.go
View File

@ -114,7 +114,7 @@ func TestReward(t *testing.T) {
{maxFeePerGas: big.NewInt(600), maxPriorityFeePerGas: big.NewInt(500), answer: big.NewInt(500)},
{maxFeePerGas: big.NewInt(600), maxPriorityFeePerGas: big.NewInt(600), answer: big.NewInt(500)},
{maxFeePerGas: big.NewInt(600), maxPriorityFeePerGas: big.NewInt(1000), answer: big.NewInt(500)},
{maxFeePerGas: big.NewInt(50), maxPriorityFeePerGas: big.NewInt(200), answer: big.NewInt(-50)},
{maxFeePerGas: big.NewInt(50), maxPriorityFeePerGas: big.NewInt(200), answer: big.NewInt(0)},
}
for _, tc := range testcases {
msg := &types.Message{GasFeeCap: tc.maxFeePerGas, GasPremium: tc.maxPriorityFeePerGas}