// WriteMapmapBloom writes each address included in the receipts' logs to the
// MIP bloom bin.
func WriteMipmapBloom(db ethdb.Database, number uint64, receipts types.Receipts) error {
batch := db.NewBatch()
for _, level := range MIPMapLevels {
key := mipmapKey(number, level)
bloomDat, _ := db.Get(key)
bloom := types.BytesToBloom(bloomDat)
for _, receipt := range receipts {
for _, log := range receipt.Logs {
bloom.Add(log.Address.Big())
}
}
batch.Put(key, bloom.Bytes())
}
if err := batch.Write(); err != nil {
return fmt.Errorf("mipmap write fail for: %d: %v", number, err)
}
return nil
}
// WriteReceipts stores a batch of transaction receipts into the database.
func WriteReceipts(db ethdb.Database, receipts types.Receipts) error {
batch := db.NewBatch()
// Iterate over all the receipts and queue them for database injection
for _, receipt := range receipts {
storageReceipt := (*types.ReceiptForStorage)(receipt)
data, err := rlp.EncodeToBytes(storageReceipt)
if err != nil {
return err
}
if err := batch.Put(append(receiptsPrefix, receipt.TxHash.Bytes()...), data); err != nil {
return err
}
}
// Write the scheduled data into the database
if err := batch.Write(); err != nil {
glog.Fatalf("failed to store receipts into database: %v", err)
return err
}
return nil
}
// WriteTransactions stores the transactions associated with a specific block
// into the given database. Beside writing the transaction, the function also
// stores a metadata entry along with the transaction, detailing the position
// of this within the blockchain.
func WriteTransactions(db ethdb.Database, block *types.Block) error {
batch := db.NewBatch()
// Iterate over each transaction and encode it with its metadata
for i, tx := range block.Transactions() {
// Encode and queue up the transaction for storage
data, err := rlp.EncodeToBytes(tx)
if err != nil {
return err
}
if err := batch.Put(tx.Hash().Bytes(), data); err != nil {
return err
}
// Encode and queue up the transaction metadata for storage
meta := struct {
BlockHash common.Hash
BlockIndex uint64
Index uint64
}{
BlockHash: block.Hash(),
BlockIndex: block.NumberU64(),
Index: uint64(i),
}
data, err = rlp.EncodeToBytes(meta)
if err != nil {
return err
}
if err := batch.Put(append(tx.Hash().Bytes(), txMetaSuffix...), data); err != nil {
return err
}
}
// Write the scheduled data into the database
if err := batch.Write(); err != nil {
glog.Fatalf("failed to store transactions into database: %v", err)
return err
}
return nil
}