diff options
Diffstat (limited to 'core/chain_manager.go')
| -rw-r--r-- | core/chain_manager.go | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/core/chain_manager.go b/core/chain_manager.go index f0d3fd4cf..d97a94b06 100644 --- a/core/chain_manager.go +++ b/core/chain_manager.go @@ -12,6 +12,7 @@ import ( "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/event" "github.com/ethereum/go-ethereum/logger" + "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rlp" ) @@ -32,18 +33,15 @@ type StateQuery interface { func CalcDifficulty(block, parent *types.Header) *big.Int { diff := new(big.Int) - diffBoundDiv := big.NewInt(2048) - min := big.NewInt(131072) - - adjust := new(big.Int).Div(parent.Difficulty, diffBoundDiv) - if (block.Time - parent.Time) < 8 { + adjust := new(big.Int).Div(parent.Difficulty, params.DifficultyBoundDivisor) + if big.NewInt(int64(block.Time)-int64(parent.Time)).Cmp(params.DurationLimit) < 0 { diff.Add(parent.Difficulty, adjust) } else { diff.Sub(parent.Difficulty, adjust) } - if diff.Cmp(min) < 0 { - return min + if diff.Cmp(params.MinimumDifficulty) < 0 { + return params.MinimumDifficulty } return diff @@ -76,7 +74,7 @@ func CalcGasLimit(parent, block *types.Block) *big.Int { result := new(big.Int).Add(previous, curInt) result.Div(result, big.NewInt(1024)) - return common.BigMax(GenesisGasLimit, result) + return common.BigMax(params.GenesisGasLimit, result) } type ChainManager struct { |