Ori Newman d207888b67
Implement pruned headers node (#1787)
* Pruning headers p2p basic structure

* Remove headers-first

* Fix consensus tests except TestValidateAndInsertPruningPointWithSideBlocks and TestValidateAndInsertImportedPruningPoint

* Add virtual genesis

* Implement PruningPointAndItsAnticoneWithMetaData

* Start fixing TestValidateAndInsertImportedPruningPoint

* Fix TestValidateAndInsertImportedPruningPoint

* Fix BlockWindow

* Update p2p and gRPC

* Fix all tests except TestHandleRelayInvs

* Delete TestHandleRelayInvs parts that cover the old IBD flow

* Fix lint errors

* Add p2p_request_ibd_blocks.go

* Clean code

* Make MsgBlockWithMetaData implement its own representation

* Remove redundant check if highest share block is below the pruning point

* Fix TestCheckLockTimeVerifyConditionedByAbsoluteTimeWithWrongLockTime

* Fix comments, errors ane names

* Fix window size to the real value

* Check reindex root after each block at TestUpdateReindexRoot

* Remove irrelevant check

* Renames and comments

* Remove redundant argument from sendGetBlockLocator

* Don't delete staging on non-recoverable errors

* Renames and comments

* Remove redundant code

* Commit changes inside ResolveVirtual

* Add comment to IsRecoverableError

* Remove blocksWithMetaDataGHOSTDAGDataStore

* Increase windows pagefile

* Move DeleteStagingConsensus outside of defer

* Get rid of mustAccepted in receiveBlockWithMetaData

* Ban on invalid pruning point

* Rename interface_datastructures_daawindowstore.go to interface_datastructures_blocks_with_meta_data_daa_window_store.go

* * Change GetVirtualSelectedParentChainFromBlockResponseMessage and VirtualSelectedParentChainChangedNotificationMessage to show only added block hashes
*  Remove ResolveVirtual
* Use externalapi.ConsensusWrapper inside MiningManager
* Fix pruningmanager.blockwithmetadata

* Set pruning point selected child when importing the pruning point UTXO set

* Change virtual genesis hash

* replace the selected parent with virtual genesis on removePrunedBlocksFromGHOSTDAGData

* Get rid of low hash in block locators

* Remove +1 from everywhere we use difficultyAdjustmentWindowSize and increase the default value by one

* Add comments about consensus wrapper

* Don't use separate staging area when resolving resolveBlockStatus

* Fix netsync stability test

* Fix checkResolveVirtual

* Rename ConsensusWrapper->ConsensusReference

* Get rid of blockHeapNode

* Add comment to defaultDifficultyAdjustmentWindowSize

* Add SelectedChild to DAGTraversalManager

* Remove redundant copy

* Rename blockWindowHeap->calculateBlockWindowHeap

* Move isVirtualGenesisOnlyParent to utils

* Change BlockWithMetaData->BlockWithTrustedData

* Get rid of maxReasonLength

* Split IBD to 100 blocks each time

* Fix a bug in calculateBlockWindowHeap

* Switch to trusted data when encountering virtual genesis in blockWithTrustedData

* Move ConsensusReference to domain

* Update ConsensusReference comment

* Add comment

* Rename shouldNotAddGenesis->skipAddingGenesis
2021-07-26 12:24:07 +03:00

87 lines
2.6 KiB
Go

package reachabilitymanager
import (
"github.com/kaspanet/kaspad/domain/consensus/model"
"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
)
// reachabilityManager maintains a structure that allows to answer
// reachability queries in sub-linear time
type reachabilityManager struct {
databaseContext model.DBReader
reachabilityDataStore model.ReachabilityDataStore
ghostdagDataStore model.GHOSTDAGDataStore
reindexSlack uint64
reindexWindow uint64
}
// New instantiates a new reachabilityManager
func New(
databaseContext model.DBReader,
ghostdagDataStore model.GHOSTDAGDataStore,
reachabilityDataStore model.ReachabilityDataStore,
) model.ReachabilityManager {
return &reachabilityManager{
databaseContext: databaseContext,
ghostdagDataStore: ghostdagDataStore,
reachabilityDataStore: reachabilityDataStore,
reindexSlack: defaultReindexSlack,
reindexWindow: defaultReindexWindow,
}
}
// AddBlock adds the block with the given blockHash into the reachability tree.
func (rt *reachabilityManager) AddBlock(stagingArea *model.StagingArea, blockHash *externalapi.DomainHash) error {
// Allocate a new reachability data
newReachabilityData := newReachabilityTreeData()
rt.stageData(stagingArea, blockHash, newReachabilityData)
ghostdagData, err := rt.ghostdagDataStore.Get(rt.databaseContext, stagingArea, blockHash, false)
if err != nil {
return err
}
reindexRoot, err := rt.reindexRoot(stagingArea)
if err != nil {
return err
}
// Insert the node into the selected parent's reachability tree
err = rt.addChild(stagingArea, ghostdagData.SelectedParent(), blockHash, reindexRoot)
if err != nil {
return err
}
// Add the block to the futureCoveringSets of all the blocks
// in the merget set
mergeSet := make([]*externalapi.DomainHash, len(ghostdagData.MergeSetBlues())+len(ghostdagData.MergeSetReds()))
copy(mergeSet, ghostdagData.MergeSetBlues())
copy(mergeSet[len(ghostdagData.MergeSetBlues()):], ghostdagData.MergeSetReds())
for _, current := range mergeSet {
err = rt.insertToFutureCoveringSet(stagingArea, current, blockHash)
if err != nil {
return err
}
}
return nil
}
func (rt *reachabilityManager) Init(stagingArea *model.StagingArea) error {
hasReachabilityData, err := rt.reachabilityDataStore.HasReachabilityData(rt.databaseContext, stagingArea, model.VirtualGenesisBlockHash)
if err != nil {
return err
}
if hasReachabilityData {
return nil
}
newReachabilityData := newReachabilityTreeData()
rt.stageData(stagingArea, model.VirtualGenesisBlockHash, newReachabilityData)
rt.stageReindexRoot(stagingArea, model.VirtualGenesisBlockHash)
return nil
}