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https://github.com/kaspanet/kaspad.git
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0fa13357c3
* [NOD-1566] Add a dependency to golang-lru. * [NOD-1566] Add caching to blockstore.go. * [NOD-1566] Add LRUCache to all store objects and initialize them. * [NOD-1566] Add caching to acceptanceDataStore. * [NOD-1566] Add caching to blockHeaderStore. * [NOD-1566] Implement a simpler LRU cache. * [NOD-1566] Use the simpler cache implementation everywhere. * [NOD-1566] Remove dependency in golang-lru. * [NOD-1566] Fix object reuse issues in store Get functions. * [NOD-1566] Add caching to blockRelationStore. * [NOD-1566] Add caching to blockStatusStore. * [NOD-1566] Add caching to ghostdagDataStore. * [NOD-1566] Add caching to multisetStore. * [NOD-1566] Add caching to reachabilityDataStore. * [NOD-1566] Add caching to utxoDiffStore. * [NOD-1566] Add caching to reachabilityReindexRoot. * [NOD-1566] Add caching to pruningStore. * [NOD-1566] Add caching to headerTipsStore. * [NOD-1566] Add caching to consensusStateStore. * [NOD-1566] Add comments explaining why we don't discard staging at the normal location in consensusStateStore. * [NOD-1566] Make go vet happy. * [NOD-1566] Fix merge errors. * [NOD-1566] Add a missing break statement. * [NOD-1566] Run go mod tidy. * [NOD-1566] Remove serializedUTXOSetCache.
116 lines
3.2 KiB
Go
116 lines
3.2 KiB
Go
package blockstatusstore
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import (
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"github.com/golang/protobuf/proto"
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"github.com/kaspanet/kaspad/domain/consensus/database/serialization"
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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/dbkeys"
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"github.com/kaspanet/kaspad/domain/consensus/utils/lrucache"
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)
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var bucket = dbkeys.MakeBucket([]byte("block-statuses"))
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// blockStatusStore represents a store of BlockStatuses
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type blockStatusStore struct {
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staging map[externalapi.DomainHash]externalapi.BlockStatus
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cache *lrucache.LRUCache
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}
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// New instantiates a new BlockStatusStore
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func New(cacheSize int) model.BlockStatusStore {
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return &blockStatusStore{
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staging: make(map[externalapi.DomainHash]externalapi.BlockStatus),
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cache: lrucache.New(cacheSize),
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}
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}
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// Stage stages the given blockStatus for the given blockHash
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func (bss *blockStatusStore) Stage(blockHash *externalapi.DomainHash, blockStatus externalapi.BlockStatus) {
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bss.staging[*blockHash] = blockStatus.Clone()
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}
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func (bss *blockStatusStore) IsStaged() bool {
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return len(bss.staging) != 0
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}
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func (bss *blockStatusStore) Discard() {
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bss.staging = make(map[externalapi.DomainHash]externalapi.BlockStatus)
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}
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func (bss *blockStatusStore) Commit(dbTx model.DBTransaction) error {
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for hash, status := range bss.staging {
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blockStatusBytes, err := bss.serializeBlockStatus(status)
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if err != nil {
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return err
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}
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err = dbTx.Put(bss.hashAsKey(&hash), blockStatusBytes)
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if err != nil {
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return err
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}
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bss.cache.Add(&hash, status)
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}
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bss.Discard()
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return nil
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}
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// Get gets the blockStatus associated with the given blockHash
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func (bss *blockStatusStore) Get(dbContext model.DBReader, blockHash *externalapi.DomainHash) (externalapi.BlockStatus, error) {
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if status, ok := bss.staging[*blockHash]; ok {
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return status, nil
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}
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if status, ok := bss.cache.Get(blockHash); ok {
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return status.(externalapi.BlockStatus), nil
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}
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statusBytes, err := dbContext.Get(bss.hashAsKey(blockHash))
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if err != nil {
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return 0, err
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}
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status, err := bss.deserializeBlockStatus(statusBytes)
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if err != nil {
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return 0, err
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}
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bss.cache.Add(blockHash, status)
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return status, nil
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}
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// Exists returns true if the blockStatus for the given blockHash exists
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func (bss *blockStatusStore) Exists(dbContext model.DBReader, blockHash *externalapi.DomainHash) (bool, error) {
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if _, ok := bss.staging[*blockHash]; ok {
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return true, nil
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}
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if bss.cache.Has(blockHash) {
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return true, nil
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}
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exists, err := dbContext.Has(bss.hashAsKey(blockHash))
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if err != nil {
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return false, err
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}
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return exists, nil
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}
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func (bss *blockStatusStore) serializeBlockStatus(status externalapi.BlockStatus) ([]byte, error) {
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dbBlockStatus := serialization.DomainBlockStatusToDbBlockStatus(status)
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return proto.Marshal(dbBlockStatus)
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}
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func (bss *blockStatusStore) deserializeBlockStatus(statusBytes []byte) (externalapi.BlockStatus, error) {
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dbBlockStatus := &serialization.DbBlockStatus{}
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err := proto.Unmarshal(statusBytes, dbBlockStatus)
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if err != nil {
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return 0, err
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}
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return serialization.DbBlockStatusToDomainBlockStatus(dbBlockStatus), nil
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}
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func (bss *blockStatusStore) hashAsKey(hash *externalapi.DomainHash) model.DBKey {
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return bucket.Key(hash[:])
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}
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