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https://github.com/kaspanet/kaspad.git
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c5707f64dc
* [NOD-1420] Start working on ConsensusStateManager. Might be redundant due to recent changes * [NOD-1420] Convert model to externalapi in utxo_algerbra helpers * [NOD-1420] Add UTXO-diff algebra * [NOD-1420] Prepare skeleton of calculateAcceptanceDataAndMultiset * [NOD-1420] Added skeleton for AddBlockToVirtual * [NOD-1420] Implement PopulateTransactionWithUTXOEntries * [NOD-1420] Implement restorePastUTXO * [NOD-1420] Implement finality check * [NOD-1420] Move handling of tips to consensusStateManager * [NOD-1420] Implement calculateAcceptanceDataAndMultiset * [NOD-1420] Start implementing resolveBlockStatus * [NOD-1420] Implement resolveBlockStatus * [NOD-1420] Update related fields in end of resolveSingleBlockStatus * [NOD-1420] Start working on selectVirtualParents * [NOD-1420] Implemented BlockHeap * [NOD-1420] Implement selectVirtualParents * [NOD-1420] Implement updateVirtual * [NOD-1420] Added comments where they were missing * [NOD-1420] Place all consensusStateManager functions in correct files * [NOD-1420] Return the missing outpoints from populateTransactionWithUTXOEntriesFromVirtualOrDiff * [NOD-1420] Outpoint.ID -> TransactionID * [NOD-1420] Fix Stringer tests * [NOD-1420] Copy hash.FromString into utils * [NOD-1420] SetParents should return an error * [NOD-1420] Remove all reachabilityManager references from consensusStateManager * [NOD-1420] Remove VirtualData. Get the info from the stores where needed * [NOD-1420] Invert parameters to IsAncestorOf * [NOD-1420] Use model.AcceptanceData * [NOD-1420] Don't return accumulatedMassBefore in error cases * [NOD-1420] Don't expect store functions to return nil when the requested data was found - instead add HasXXX functions * [NOD-1420] addTransactionToMultiset sets isCoinbase properly * [NOD-1420] expected hash string length is externalapi.DomainHashSize * 2 * [NOD-1420] Rename reachabilityTree -> reachabilityManager + updateReindexRoot if isNextVirtualSelectedParent * [NOD-1420] ValidateCoinbaseTransaction in csm.verifyAndBuildUTXO * [NOD-1420] Re-write HAsUTXODiffChild * [NOD-1420] delete past_utxo.go.bak * [NOD-1420] Implement validateCoinbaseTransaction in CSM * [NOD-1420] Imlemented missing functionality in ValidateTransactionAndPopulateWithConsensusData * [NOD-1420] Moved merge depth logic to MergeDepthManager * [NOD-1420] Add logs
65 lines
1.9 KiB
Go
65 lines
1.9 KiB
Go
package ghostdagmanager
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import (
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"github.com/kaspanet/kaspad/domain/consensus/model"
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"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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"github.com/kaspanet/kaspad/domain/consensus/utils/hashes"
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)
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func (gm *ghostdagManager) findSelectedParent(parentHashes []*externalapi.DomainHash) (*externalapi.DomainHash, error) {
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var selectedParent *externalapi.DomainHash
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for _, hash := range parentHashes {
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if selectedParent == nil {
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selectedParent = hash
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continue
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}
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isHashBiggerThanSelectedParent, err := gm.less(selectedParent, hash)
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if err != nil {
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return nil, err
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}
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if isHashBiggerThanSelectedParent {
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selectedParent = hash
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}
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}
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return selectedParent, nil
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}
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func (gm *ghostdagManager) less(blockHashA *externalapi.DomainHash, blockHashB *externalapi.DomainHash) (bool, error) {
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chosenSelectedParent, err := gm.ChooseSelectedParent(blockHashA, blockHashB)
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if err != nil {
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return false, err
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}
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return chosenSelectedParent == blockHashB, nil
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}
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func (gm *ghostdagManager) ChooseSelectedParent(blockHashA *externalapi.DomainHash,
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blockHashB *externalapi.DomainHash) (*externalapi.DomainHash, error) {
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blockAGHOSTDAGData, err := gm.ghostdagDataStore.Get(gm.databaseContext, blockHashA)
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if err != nil {
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return nil, err
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}
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blockBGHOSTDAGData, err := gm.ghostdagDataStore.Get(gm.databaseContext, blockHashB)
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if err != nil {
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return nil, err
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}
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if gm.Less(blockHashA, blockAGHOSTDAGData, blockHashB, blockBGHOSTDAGData) {
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return blockHashB, nil
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}
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return blockHashA, nil
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}
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func (gm *ghostdagManager) Less(blockHashA *externalapi.DomainHash, ghostdagDataA *model.BlockGHOSTDAGData,
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blockHashB *externalapi.DomainHash, ghostdagDataB *model.BlockGHOSTDAGData) bool {
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blockBlueScoreA := ghostdagDataA.BlueScore
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blockBlueScoreB := ghostdagDataB.BlueScore
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if blockBlueScoreA == blockBlueScoreB {
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return hashes.Less(blockHashA, blockHashB)
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}
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return blockBlueScoreA < blockBlueScoreB
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}
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