// ProcessDBlockBatche inserts the DBlock and update all it's dbentries in DB
func (db *LevelDb) ProcessDBlockBatch(dblock *common.DirectoryBlock) error {
if dblock != nil {
if db.lbatch == nil {
db.lbatch = new(leveldb.Batch)
}
defer db.lbatch.Reset()
binaryDblock, err := dblock.MarshalBinary()
if err != nil {
return err
}
if dblock.DBHash == nil {
dblock.DBHash = common.Sha(binaryDblock)
}
if dblock.KeyMR == nil {
dblock.BuildKeyMerkleRoot()
}
// Insert the binary directory block
var key []byte = []byte{byte(TBL_DB)}
key = append(key, dblock.DBHash.Bytes()...)
db.lbatch.Put(key, binaryDblock)
// Insert block height cross reference
var dbNumkey []byte = []byte{byte(TBL_DB_NUM)}
var buf bytes.Buffer
binary.Write(&buf, binary.BigEndian, dblock.Header.DBHeight)
dbNumkey = append(dbNumkey, buf.Bytes()...)
db.lbatch.Put(dbNumkey, dblock.DBHash.Bytes())
// Insert the directory block merkle root cross reference
key = []byte{byte(TBL_DB_MR)}
key = append(key, dblock.KeyMR.Bytes()...)
binaryDBHash, _ := dblock.DBHash.MarshalBinary()
db.lbatch.Put(key, binaryDBHash)
// Update the chain head reference
key = []byte{byte(TBL_CHAIN_HEAD)}
key = append(key, common.D_CHAINID...)
db.lbatch.Put(key, dblock.KeyMR.Bytes())
err = db.lDb.Write(db.lbatch, db.wo)
if err != nil {
return err
}
// Update DirBlock Height cache
db.lastDirBlkHeight = int64(dblock.Header.DBHeight)
db.lastDirBlkSha, _ = wire.NewShaHash(dblock.DBHash.Bytes())
db.lastDirBlkShaCached = true
}
return nil
}
// Validate a dir block
func validateDBlock(c *common.DChain, b *common.DirectoryBlock) (merkleRoot *common.Hash, dbHash *common.Hash, err error) {
bodyMR, err := b.BuildBodyMR()
if err != nil {
return nil, nil, err
}
if !b.Header.BodyMR.IsSameAs(bodyMR) {
return nil, nil, errors.New("Invalid body MR for dir block: " + string(b.Header.DBHeight))
}
for _, dbEntry := range b.DBEntries {
switch dbEntry.ChainID.String() {
case ecchain.ChainID.String():
err := validateCBlockByMR(dbEntry.KeyMR)
if err != nil {
return nil, nil, err
}
case achain.ChainID.String():
err := validateABlockByMR(dbEntry.KeyMR)
if err != nil {
return nil, nil, err
}
case wire.FChainID.String():
err := validateFBlockByMR(dbEntry.KeyMR)
if err != nil {
return nil, nil, err
}
default:
err := validateEBlockByMR(dbEntry.ChainID, dbEntry.KeyMR)
if err != nil {
return nil, nil, err
}
}
}
b.DBHash, _ = common.CreateHash(b)
b.BuildKeyMerkleRoot()
return b.KeyMR, b.DBHash, nil
}