Skip to content
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

Jump to bottom

consensus/ethash: implement EIP-3554 (bomb delay) #22840

Merged
merged 1 commit into from
May 12, 2021
Merged

consensus/ethash: implement EIP-3554 (bomb delay) #22840

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
7 changes: 7 additions & 0 deletions consensus/ethash/consensus.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,11 @@ var (
maxUncles = 2 // Maximum number of uncles allowed in a single block
allowedFutureBlockTimeSeconds = int64(15) // Max seconds from current time allowed for blocks, before they're considered future blocks

// calcDifficultyEip3554 is the difficulty adjustment algorithm as specified by EIP 3554.
// It offsets the bomb a total of 9.5M blocks.
// Specification EIP-3554: https://eips.ethereum.org/EIPS/eip-3554
calcDifficultyEip3554 = makeDifficultyCalculator(big.NewInt(9500000))

// calcDifficultyEip2384 is the difficulty adjustment algorithm as specified by EIP 2384.
// It offsets the bomb 4M blocks from Constantinople, so in total 9M blocks.
// Specification EIP-2384: https://eips.ethereum.org/EIPS/eip-2384
Expand Down Expand Up @@ -325,6 +330,8 @@ func CalcDifficulty(config *params.ChainConfig, time uint64, parent *types.Heade
switch {
case config.IsCatalyst(next):
return big.NewInt(1)
case config.IsLondon(next):
return calcDifficultyEip3554(time, parent)
case config.IsMuirGlacier(next):
return calcDifficultyEip2384(time, parent)
case config.IsConstantinople(next):
Expand Down