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ghostdag.go
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ghostdag.go
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package model
import (
"math/big"
"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
)
// KType defines the size of GHOSTDAG consensus algorithm K parameter.
type KType byte
// BlockGHOSTDAGData represents GHOSTDAG data for some block
type BlockGHOSTDAGData struct {
blueScore uint64
blueWork *big.Int
selectedParent *externalapi.DomainHash
mergeSetBlues []*externalapi.DomainHash
mergeSetReds []*externalapi.DomainHash
bluesAnticoneSizes map[externalapi.DomainHash]KType
}
// NewBlockGHOSTDAGData creates a new instance of BlockGHOSTDAGData
func NewBlockGHOSTDAGData(
blueScore uint64,
blueWork *big.Int,
selectedParent *externalapi.DomainHash,
mergeSetBlues []*externalapi.DomainHash,
mergeSetReds []*externalapi.DomainHash,
bluesAnticoneSizes map[externalapi.DomainHash]KType) *BlockGHOSTDAGData {
return &BlockGHOSTDAGData{
blueScore: blueScore,
blueWork: blueWork,
selectedParent: selectedParent,
mergeSetBlues: mergeSetBlues,
mergeSetReds: mergeSetReds,
bluesAnticoneSizes: bluesAnticoneSizes,
}
}
// BlueScore returns the BlueScore of the block
func (bgd *BlockGHOSTDAGData) BlueScore() uint64 {
return bgd.blueScore
}
// BlueWork returns the BlueWork of the block
func (bgd *BlockGHOSTDAGData) BlueWork() *big.Int {
return bgd.blueWork
}
// SelectedParent returns the SelectedParent of the block
func (bgd *BlockGHOSTDAGData) SelectedParent() *externalapi.DomainHash {
return bgd.selectedParent
}
// MergeSetBlues returns the MergeSetBlues of the block (not a copy)
func (bgd *BlockGHOSTDAGData) MergeSetBlues() []*externalapi.DomainHash {
return bgd.mergeSetBlues
}
// MergeSetReds returns the MergeSetReds of the block (not a copy)
func (bgd *BlockGHOSTDAGData) MergeSetReds() []*externalapi.DomainHash {
return bgd.mergeSetReds
}
// BluesAnticoneSizes returns a map between the blocks in its MergeSetBlues and the size of their anticone
func (bgd *BlockGHOSTDAGData) BluesAnticoneSizes() map[externalapi.DomainHash]KType {
return bgd.bluesAnticoneSizes
}
// MergeSet returns the whole MergeSet of the block (equivalent to MergeSetBlues+MergeSetReds)
func (bgd *BlockGHOSTDAGData) MergeSet() []*externalapi.DomainHash {
mergeSet := make([]*externalapi.DomainHash, len(bgd.mergeSetBlues)+len(bgd.mergeSetReds))
copy(mergeSet, bgd.mergeSetBlues)
if len(bgd.mergeSetReds) > 0 {
copy(mergeSet[len(bgd.mergeSetBlues):], bgd.mergeSetReds)
}
return mergeSet
}