// WriteHeadFastBlockHash stores the fast head block's hash.
func WriteHeadFastBlockHash(db ethdb.Database, hash common.Hash) error {
if err := db.Put(headFastKey, hash.Bytes()); err != nil {
glog.Fatalf("failed to store last fast block's hash into database: %v", err)
return err
}
return nil
}
func saveBlockchainVersion(db ethdb.Database, bcVersion int) {
d, _ := db.Get([]byte("BlockchainVersion"))
blockchainVersion := common.NewValue(d).Uint()
if blockchainVersion == 0 {
db.Put([]byte("BlockchainVersion"), common.NewValue(bcVersion).Bytes())
}
}
// WriteCanonicalHash stores the canonical hash for the given block number.
func WriteCanonicalHash(db ethdb.Database, hash common.Hash, number uint64) error {
key := append(blockNumPrefix, big.NewInt(int64(number)).Bytes()...)
if err := db.Put(key, hash.Bytes()); err != nil {
glog.Fatalf("failed to store number to hash mapping into database: %v", err)
return err
}
return nil
}
// storeProof stores the new trie nodes obtained from a merkle proof in the database
func storeProof(db ethdb.Database, proof []rlp.RawValue) {
for _, buf := range proof {
hash := crypto.Keccak256(buf)
val, _ := db.Get(hash)
if val == nil {
db.Put(hash, buf)
}
}
}
// WriteTd serializes the total difficulty of a block into the database.
func WriteTd(db ethdb.Database, hash common.Hash, td *big.Int) error {
data, err := rlp.EncodeToBytes(td)
if err != nil {
return err
}
key := append(append(blockPrefix, hash.Bytes()...), tdSuffix...)
if err := db.Put(key, data); err != nil {
glog.Fatalf("failed to store block total difficulty into database: %v", err)
return err
}
glog.V(logger.Debug).Infof("stored block total difficulty [%x…]: %v", hash.Bytes()[:4], td)
return nil
}
// WriteBody serializes the body of a block into the database.
func WriteBody(db ethdb.Database, hash common.Hash, body *types.Body) error {
data, err := rlp.EncodeToBytes(body)
if err != nil {
return err
}
key := append(append(blockPrefix, hash.Bytes()...), bodySuffix...)
if err := db.Put(key, data); err != nil {
glog.Fatalf("failed to store block body into database: %v", err)
return err
}
glog.V(logger.Debug).Infof("stored block body [%x…]", hash.Bytes()[:4])
return nil
}
// WriteHeader serializes a block header into the database.
func WriteHeader(db ethdb.Database, header *types.Header) error {
data, err := rlp.EncodeToBytes(header)
if err != nil {
return err
}
key := append(append(blockPrefix, header.Hash().Bytes()...), headerSuffix...)
if err := db.Put(key, data); err != nil {
glog.Fatalf("failed to store header into database: %v", err)
return err
}
glog.V(logger.Debug).Infof("stored header #%v [%x…]", header.Number, header.Hash().Bytes()[:4])
return nil
}
// WriteChainConfig writes the chain config settings to the database.
func WriteChainConfig(db ethdb.Database, hash common.Hash, cfg *ChainConfig) error {
// short circuit and ignore if nil config. GetChainConfig
// will return a default.
if cfg == nil {
return nil
}
jsonChainConfig, err := json.Marshal(cfg)
if err != nil {
return err
}
return db.Put(append(configPrefix, hash[:]...), jsonChainConfig)
}
// WriteBlockReceipts stores all the transaction receipts belonging to a block
// as a single receipt slice. This is used during chain reorganisations for
// rescheduling dropped transactions.
func WriteBlockReceipts(db ethdb.Database, hash common.Hash, receipts types.Receipts) error {
// Convert the receipts into their storage form and serialize them
storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
for i, receipt := range receipts {
storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
}
bytes, err := rlp.EncodeToBytes(storageReceipts)
if err != nil {
return err
}
// Store the flattened receipt slice
if err := db.Put(append(blockReceiptsPrefix, hash.Bytes()...), bytes); err != nil {
glog.Fatalf("failed to store block receipts into database: %v", err)
return err
}
glog.V(logger.Debug).Infof("stored block receipts [%x…]", hash.Bytes()[:4])
return nil
}
func addMipmapBloomBins(db ethdb.Database) (err error) {
const mipmapVersion uint = 2
// check if the version is set. We ignore data for now since there's
// only one version so we can easily ignore it for now
var data []byte
data, _ = db.Get([]byte("setting-mipmap-version"))
if len(data) > 0 {
var version uint
if err := rlp.DecodeBytes(data, &version); err == nil && version == mipmapVersion {
return nil
}
}
defer func() {
if err == nil {
var val []byte
val, err = rlp.EncodeToBytes(mipmapVersion)
if err == nil {
err = db.Put([]byte("setting-mipmap-version"), val)
}
return
}
}()
latestBlock := core.GetBlock(db, core.GetHeadBlockHash(db))
if latestBlock == nil { // clean database
return
}
tstart := time.Now()
glog.V(logger.Info).Infoln("upgrading db log bloom bins")
for i := uint64(0); i <= latestBlock.NumberU64(); i++ {
hash := core.GetCanonicalHash(db, i)
if (hash == common.Hash{}) {
return fmt.Errorf("chain db corrupted. Could not find block %d.", i)
}
core.WriteMipmapBloom(db, i, core.GetBlockReceipts(db, hash))
}
glog.V(logger.Info).Infoln("upgrade completed in", time.Since(tstart))
return nil
}
// WriteBlockChainVersion writes vsn as the version number to db.
func WriteBlockChainVersion(db ethdb.Database, vsn int) {
enc, _ := rlp.EncodeToBytes(uint(vsn))
db.Put([]byte("BlockchainVersion"), enc)
}
// StoreResult stores the retrieved data in local database
func (req *NodeDataRequest) StoreResult(db ethdb.Database) {
db.Put(req.hash[:], req.GetData())
}