Skip to content

Optimism eip 1559 config #4

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mslipper merged 1 commit into from
Sep 9, 2022
Merged

Optimism eip 1559 config #4

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 4 additions & 4 deletions consensus/misc/eip1559.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ func VerifyEip1559Header(config *params.ChainConfig, parent, header *types.Heade
// Verify that the gas limit remains within allowed bounds
parentGasLimit := parent.GasLimit
if !config.IsLondon(parent.Number) {
parentGasLimit = parent.GasLimit * params.ElasticityMultiplier
parentGasLimit = parent.GasLimit * config.ElasticityMultiplier()
}
if err := VerifyGaslimit(parentGasLimit, header.GasLimit); err != nil {
return err
Expand All @@ -58,7 +58,7 @@ func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
return new(big.Int).SetUint64(params.InitialBaseFee)
}

parentGasTarget := parent.GasLimit / params.ElasticityMultiplier
parentGasTarget := parent.GasLimit / config.ElasticityMultiplier()
// If the parent gasUsed is the same as the target, the baseFee remains unchanged.
if parent.GasUsed == parentGasTarget {
return new(big.Int).Set(parent.BaseFee)
Expand All @@ -75,7 +75,7 @@ func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
num.SetUint64(parent.GasUsed - parentGasTarget)
num.Mul(num, parent.BaseFee)
num.Div(num, denom.SetUint64(parentGasTarget))
num.Div(num, denom.SetUint64(params.BaseFeeChangeDenominator))
num.Div(num, denom.SetUint64(config.BaseFeeChangeDenominator()))
baseFeeDelta := math.BigMax(num, common.Big1)

return num.Add(parent.BaseFee, baseFeeDelta)
Expand All @@ -85,7 +85,7 @@ func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
num.SetUint64(parentGasTarget - parent.GasUsed)
num.Mul(num, parent.BaseFee)
num.Div(num, denom.SetUint64(parentGasTarget))
num.Div(num, denom.SetUint64(params.BaseFeeChangeDenominator))
num.Div(num, denom.SetUint64(config.BaseFeeChangeDenominator()))
baseFee := num.Sub(parent.BaseFee, num)

return math.BigMax(baseFee, common.Big0)
Expand Down
4 changes: 2 additions & 2 deletions core/chain_makers.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -173,7 +173,7 @@ func (b *BlockGen) AddUncle(h *types.Header) {
if b.config.IsLondon(h.Number) {
h.BaseFee = misc.CalcBaseFee(b.config, parent)
if !b.config.IsLondon(parent.Number) {
parentGasLimit := parent.GasLimit * params.ElasticityMultiplier
parentGasLimit := parent.GasLimit * b.config.ElasticityMultiplier()
h.GasLimit = CalcGasLimit(parentGasLimit, parentGasLimit)
}
}
Expand Down Expand Up @@ -308,7 +308,7 @@ func makeHeader(chain consensus.ChainReader, parent *types.Block, state *state.S
if chain.Config().IsLondon(header.Number) {
header.BaseFee = misc.CalcBaseFee(chain.Config(), parent.Header())
if !chain.Config().IsLondon(parent.Number()) {
parentGasLimit := parent.GasLimit() * params.ElasticityMultiplier
parentGasLimit := parent.GasLimit() * chain.Config().ElasticityMultiplier()
header.GasLimit = CalcGasLimit(parentGasLimit, parentGasLimit)
}
}
Expand Down
2 changes: 1 addition & 1 deletion miner/worker.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1011,7 +1011,7 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
if w.chainConfig.IsLondon(header.Number) {
header.BaseFee = misc.CalcBaseFee(w.chainConfig, parent.Header())
if !w.chainConfig.IsLondon(parent.Number()) {
parentGasLimit := parent.GasLimit() * params.ElasticityMultiplier
parentGasLimit := parent.GasLimit() * w.chainConfig.ElasticityMultiplier()
header.GasLimit = core.CalcGasLimit(parentGasLimit, w.config.GasCeil)
}
}
Expand Down
14 changes: 14 additions & 0 deletions params/config.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -726,6 +726,20 @@ func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *Confi
return nil
}

func (c *ChainConfig) ElasticityMultiplier() uint64 {
if c.Optimism != nil {
return c.Optimism.EIP1559Elasticity
}
return ElasticityMultiplier
}

func (c *ChainConfig) BaseFeeChangeDenominator() uint64 {
if c.Optimism != nil {
return c.Optimism.EIP1559Denominator
}
return BaseFeeChangeDenominator
}

// isForkIncompatible returns true if a fork scheduled at s1 cannot be rescheduled to
// block s2 because head is already past the fork.
func isForkIncompatible(s1, s2, head *big.Int) bool {
Expand Down