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* [NOD-1548] Readd TestDifficulty * [NOD-1548] Make GHOSTDAGData immutable + don't clone in store Co-authored-by: Ori Newman <orinewman1@gmail.com>
42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
package dagtraversalmanager
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import "github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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// blueBlockWindow returns a blockWindow of the given size that contains the
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// blues in the past of startindNode, sorted by GHOSTDAG order.
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// If the number of blues in the past of startingNode is less then windowSize,
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// the window will be padded by genesis blocks to achieve a size of windowSize.
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func (dtm *dagTraversalManager) BlueWindow(startingBlock *externalapi.DomainHash, windowSize uint64) ([]*externalapi.DomainHash, error) {
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window := make([]*externalapi.DomainHash, 0, windowSize)
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currentHash := startingBlock
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currentGHOSTDAGData, err := dtm.ghostdagDataStore.Get(dtm.databaseContext, currentHash)
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if err != nil {
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return nil, err
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}
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for uint64(len(window)) < windowSize && currentGHOSTDAGData.SelectedParent() != nil {
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for _, blue := range currentGHOSTDAGData.MergeSetBlues() {
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window = append(window, blue)
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if uint64(len(window)) == windowSize {
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break
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}
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}
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currentHash = currentGHOSTDAGData.SelectedParent()
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currentGHOSTDAGData, err = dtm.ghostdagDataStore.Get(dtm.databaseContext, currentHash)
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if err != nil {
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return nil, err
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}
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}
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if uint64(len(window)) < windowSize {
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genesis := currentHash
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for uint64(len(window)) < windowSize {
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window = append(window, genesis)
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}
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}
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return window, nil
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}
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