mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-08-20 10:52:25 +00:00
consensus/ubqhash: Redeclare diff algo constants as diffConfig structs
This commit is contained in:
Luke Williams
parent
88b56df9eb
commit
b17e25f2db
1 changed files with 41 additions and 27 deletions
|
|
@ -45,22 +45,36 @@ var (
|
|||
|
||||
// Diff algo constants.
|
||||
var (
|
||||
big88 = big.NewInt(88)
|
||||
bigMinus99 = big.NewInt(-99)
|
||||
nPowAveragingWindow = big.NewInt(21)
|
||||
nPowMaxAdjustDown = big.NewInt(16) // 16% adjustment down
|
||||
nPowMaxAdjustUp = big.NewInt(8) // 8% adjustment up
|
||||
big88 = big.NewInt(88)
|
||||
bigMinus99 = big.NewInt(-99)
|
||||
|
||||
nPowAveragingWindow88 = big.NewInt(88)
|
||||
nPowMaxAdjustDown2 = big.NewInt(3) // 3% adjustment down
|
||||
nPowMaxAdjustUp2 = big.NewInt(2) // 2% adjustment up
|
||||
digishieldV3Config = &diffConfig{
|
||||
AveragingWindow: big.NewInt(21),
|
||||
MaxAdjustDown: big.NewInt(16), // 16%
|
||||
MaxAdjustUp: big.NewInt(8), // 8%
|
||||
}
|
||||
|
||||
// Flux
|
||||
nPowMaxAdjustDownFlux = big.NewInt(5) // 0.5% adjustment down
|
||||
nPowMaxAdjustUpFlux = big.NewInt(3) // 0.3% adjustment up
|
||||
nPowDampFlux = big.NewInt(1) // 0.1%
|
||||
digishieldV3ModConfig = &diffConfig{
|
||||
AveragingWindow: big.NewInt(88),
|
||||
MaxAdjustDown: big.NewInt(3), // 3%
|
||||
MaxAdjustUp: big.NewInt(2), // 2%
|
||||
}
|
||||
|
||||
fluxConfig = &diffConfig{
|
||||
AveragingWindow: big.NewInt(88),
|
||||
MaxAdjustDown: big.NewInt(5), // 0.5%
|
||||
MaxAdjustUp: big.NewInt(3), // 0.3%
|
||||
Dampen: big.NewInt(1), // 0.1%
|
||||
}
|
||||
)
|
||||
|
||||
type diffConfig struct {
|
||||
AveragingWindow *big.Int `json:"averagingWindow"`
|
||||
MaxAdjustDown *big.Int `json:"maxAdjustDown"`
|
||||
MaxAdjustUp *big.Int `json:"maxAdjustUp"`
|
||||
Dampen *big.Int `json:"dampen,omitempty"`
|
||||
}
|
||||
|
||||
// Various error messages to mark blocks invalid. These should be private to
|
||||
// prevent engine specific errors from being referenced in the remainder of the
|
||||
// codebase, inherently breaking if the engine is swapped out. Please put common
|
||||
|
|
@ -300,14 +314,14 @@ func (ubqhash *Ubqhash) verifyHeader(chain consensus.ChainReader, header, parent
|
|||
// Difficulty timespans
|
||||
func averagingWindowTimespan() *big.Int {
|
||||
x := new(big.Int)
|
||||
return x.Mul(nPowAveragingWindow, big88)
|
||||
return x.Mul(digishieldV3Config.AveragingWindow, big88)
|
||||
}
|
||||
|
||||
func minActualTimespan() *big.Int {
|
||||
x := new(big.Int)
|
||||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
x.Sub(big.NewInt(100), nPowMaxAdjustUp)
|
||||
x.Sub(big.NewInt(100), digishieldV3Config.MaxAdjustUp)
|
||||
y.Mul(averagingWindowTimespan(), x)
|
||||
z.Div(y, big.NewInt(100))
|
||||
return z
|
||||
|
|
@ -317,7 +331,7 @@ func maxActualTimespan() *big.Int {
|
|||
x := new(big.Int)
|
||||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
x.Add(big.NewInt(100), nPowMaxAdjustDown)
|
||||
x.Add(big.NewInt(100), digishieldV3Config.MaxAdjustDown)
|
||||
y.Mul(averagingWindowTimespan(), x)
|
||||
z.Div(y, big.NewInt(100))
|
||||
return z
|
||||
|
|
@ -325,14 +339,14 @@ func maxActualTimespan() *big.Int {
|
|||
|
||||
func averagingWindowTimespan88() *big.Int {
|
||||
x := new(big.Int)
|
||||
return x.Mul(nPowAveragingWindow88, big88)
|
||||
return x.Mul(digishieldV3ModConfig.AveragingWindow, big88)
|
||||
}
|
||||
|
||||
func minActualTimespan2() *big.Int {
|
||||
x := new(big.Int)
|
||||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
x.Sub(big.NewInt(100), nPowMaxAdjustUp2)
|
||||
x.Sub(big.NewInt(100), digishieldV3ModConfig.MaxAdjustUp)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(100))
|
||||
return z
|
||||
|
|
@ -342,7 +356,7 @@ func maxActualTimespan2() *big.Int {
|
|||
x := new(big.Int)
|
||||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
x.Add(big.NewInt(100), nPowMaxAdjustDown2)
|
||||
x.Add(big.NewInt(100), digishieldV3ModConfig.MaxAdjustDown)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(100))
|
||||
return z
|
||||
|
|
@ -353,11 +367,11 @@ func minActualTimespanFlux(dampen bool) *big.Int {
|
|||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
if dampen {
|
||||
x.Sub(big.NewInt(1000), nPowDampFlux)
|
||||
x.Sub(big.NewInt(1000), fluxConfig.Dampen)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(1000))
|
||||
} else {
|
||||
x.Sub(big.NewInt(1000), nPowMaxAdjustUpFlux)
|
||||
x.Sub(big.NewInt(1000), fluxConfig.MaxAdjustUp)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(1000))
|
||||
}
|
||||
|
|
@ -369,11 +383,11 @@ func maxActualTimespanFlux(dampen bool) *big.Int {
|
|||
y := new(big.Int)
|
||||
z := new(big.Int)
|
||||
if dampen {
|
||||
x.Add(big.NewInt(1000), nPowDampFlux)
|
||||
x.Add(big.NewInt(1000), fluxConfig.Dampen)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(1000))
|
||||
} else {
|
||||
x.Add(big.NewInt(1000), nPowMaxAdjustDownFlux)
|
||||
x.Add(big.NewInt(1000), fluxConfig.MaxAdjustDown)
|
||||
y.Mul(averagingWindowTimespan88(), x)
|
||||
z.Div(y, big.NewInt(1000))
|
||||
}
|
||||
|
|
@ -454,13 +468,13 @@ func calcDifficultyOrig(chain consensus.ChainReader, parentNumber, parentDiff *b
|
|||
// holds intermediate values to make the algo easier to read & audit
|
||||
x := new(big.Int)
|
||||
nFirstBlock := new(big.Int)
|
||||
nFirstBlock.Sub(parentNumber, nPowAveragingWindow)
|
||||
nFirstBlock.Sub(parentNumber, digishieldV3Config.AveragingWindow)
|
||||
|
||||
log.Debug(fmt.Sprintf("CalcDifficulty parentNumber: %v parentDiff: %v", parentNumber, parentDiff))
|
||||
|
||||
// Check we have enough blocks
|
||||
if parentNumber.Cmp(nPowAveragingWindow) < 1 {
|
||||
log.Debug(fmt.Sprintf("CalcDifficulty: parentNumber(%+x) < nPowAveragingWindow(%+x)", parentNumber, nPowAveragingWindow))
|
||||
if parentNumber.Cmp(digishieldV3Config.AveragingWindow) < 1 {
|
||||
log.Debug(fmt.Sprintf("CalcDifficulty: parentNumber(%+x) < digishieldV3Config.AveragingWindow(%+x)", parentNumber, digishieldV3Config.AveragingWindow))
|
||||
x.Set(parentDiff)
|
||||
return x
|
||||
}
|
||||
|
|
@ -504,7 +518,7 @@ func calcDifficultyOrig(chain consensus.ChainReader, parentNumber, parentDiff *b
|
|||
func calcDifficulty2(chain consensus.ChainReader, parentNumber, parentDiff *big.Int, parent *types.Header) *big.Int {
|
||||
x := new(big.Int)
|
||||
nFirstBlock := new(big.Int)
|
||||
nFirstBlock.Sub(parentNumber, nPowAveragingWindow88)
|
||||
nFirstBlock.Sub(parentNumber, digishieldV3ModConfig.AveragingWindow)
|
||||
|
||||
nLastBlockTime := chain.CalcPastMedianTime(parentNumber.Uint64(), parent)
|
||||
nFirstBlockTime := chain.CalcPastMedianTime(nFirstBlock.Uint64(), parent)
|
||||
|
|
@ -536,7 +550,7 @@ func calcDifficulty2(chain consensus.ChainReader, parentNumber, parentDiff *big.
|
|||
func fluxDifficulty(chain consensus.ChainReader, time, parentTime, parentNumber, parentDiff *big.Int, parent *types.Header) *big.Int {
|
||||
x := new(big.Int)
|
||||
nFirstBlock := new(big.Int)
|
||||
nFirstBlock.Sub(parentNumber, nPowAveragingWindow88)
|
||||
nFirstBlock.Sub(parentNumber, fluxConfig.AveragingWindow)
|
||||
|
||||
diffTime := new(big.Int)
|
||||
diffTime.Sub(time, parentTime)
|
||||
|
|
|
|||
Loading…
Reference in a new issue