コード例 #1
0
// PutReceipts stores the receipts in the current database
func PutReceipts(db ethdb.Database, receipts types.Receipts) error {
	batch := new(leveldb.Batch)
	_, batchWrite := db.(*ethdb.LDBDatabase)

	for _, receipt := range receipts {
		storageReceipt := (*types.ReceiptForStorage)(receipt)
		bytes, err := rlp.EncodeToBytes(storageReceipt)
		if err != nil {
			return err
		}

		if batchWrite {
			batch.Put(append(receiptsPre, receipt.TxHash[:]...), bytes)
		} else {
			err = db.Put(append(receiptsPre, receipt.TxHash[:]...), bytes)
			if err != nil {
				return err
			}
		}
	}
	if db, ok := db.(*ethdb.LDBDatabase); ok {
		if err := db.LDB().Write(batch, nil); err != nil {
			return err
		}
	}

	return nil
}
コード例 #2
0
// PutTransactions stores the transactions in the given database
func PutTransactions(db ethdb.Database, block *types.Block, txs types.Transactions) {
	batch := new(leveldb.Batch)
	_, batchWrite := db.(*ethdb.LDBDatabase)

	for i, tx := range block.Transactions() {
		rlpEnc, err := rlp.EncodeToBytes(tx)
		if err != nil {
			glog.V(logger.Debug).Infoln("Failed encoding tx", err)
			return
		}

		if batchWrite {
			batch.Put(tx.Hash().Bytes(), rlpEnc)
		} else {
			db.Put(tx.Hash().Bytes(), rlpEnc)
		}

		var txExtra struct {
			BlockHash  common.Hash
			BlockIndex uint64
			Index      uint64
		}
		txExtra.BlockHash = block.Hash()
		txExtra.BlockIndex = block.NumberU64()
		txExtra.Index = uint64(i)
		rlpMeta, err := rlp.EncodeToBytes(txExtra)
		if err != nil {
			glog.V(logger.Debug).Infoln("Failed encoding tx meta data", err)
			return
		}

		if batchWrite {
			batch.Put(append(tx.Hash().Bytes(), 0x0001), rlpMeta)
		} else {
			db.Put(append(tx.Hash().Bytes(), 0x0001), rlpMeta)
		}
	}

	if db, ok := db.(*ethdb.LDBDatabase); ok {
		if err := db.LDB().Write(batch, nil); err != nil {
			glog.V(logger.Error).Infoln("db write err:", err)
		}
	}
}