core, eth, miner, xeth: clean up tx/receipt db accessors

1 files changed, 0 insertions, 171 deletions

diff --git a/core/transaction_util.go b/core/transaction_util.go
deleted file mode 100644
index e2e5b9aee..000000000
--- a/core/transaction_util.go
+++ /dev/null
@@ -1,171 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package core
-
-import (
-	"fmt"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/logger/glog"
-	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/syndtr/goleveldb/leveldb"
-)
-
-var (
-	receiptsPre      = []byte("receipts-")
-	blockReceiptsPre = []byte("receipts-block-")
-)
-
-// PutTransactions stores the transactions in the given database
-func PutTransactions(db ethdb.Database, block *types.Block, txs types.Transactions) error {
-	batch := db.NewBatch()
-
-	for i, tx := range block.Transactions() {
-		rlpEnc, err := rlp.EncodeToBytes(tx)
-		if err != nil {
-			return fmt.Errorf("failed encoding tx: %v", err)
-		}
-
-		batch.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 {
-			return fmt.Errorf("failed encoding tx meta data: %v", err)
-		}
-
-		batch.Put(append(tx.Hash().Bytes(), 0x0001), rlpMeta)
-	}
-
-	if err := batch.Write(); err != nil {
-		return fmt.Errorf("failed writing tx to db: %v", err)
-	}
-	return nil
-}
-
-func DeleteTransaction(db ethdb.Database, txHash common.Hash) {
-	db.Delete(txHash[:])
-}
-
-func GetTransaction(db ethdb.Database, txhash common.Hash) *types.Transaction {
-	data, _ := db.Get(txhash[:])
-	if len(data) != 0 {
-		var tx types.Transaction
-		if err := rlp.DecodeBytes(data, &tx); err != nil {
-			return nil
-		}
-		return &tx
-	}
-	return nil
-}
-
-// 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
-}
-
-// Delete a receipts from the database
-func DeleteReceipt(db ethdb.Database, txHash common.Hash) {
-	db.Delete(append(receiptsPre, txHash[:]...))
-}
-
-// GetReceipt returns a receipt by hash
-func GetReceipt(db ethdb.Database, txHash common.Hash) *types.Receipt {
-	data, _ := db.Get(append(receiptsPre, txHash[:]...))
-	if len(data) == 0 {
-		return nil
-	}
-	var receipt types.ReceiptForStorage
-	err := rlp.DecodeBytes(data, &receipt)
-	if err != nil {
-		glog.V(logger.Core).Infoln("GetReceipt err:", err)
-	}
-	return (*types.Receipt)(&receipt)
-}
-
-// GetBlockReceipts returns the receipts generated by the transactions
-// included in block's given hash.
-func GetBlockReceipts(db ethdb.Database, hash common.Hash) types.Receipts {
-	data, _ := db.Get(append(blockReceiptsPre, hash[:]...))
-	if len(data) == 0 {
-		return nil
-	}
-	rs := []*types.ReceiptForStorage{}
-	if err := rlp.DecodeBytes(data, &rs); err != nil {
-		glog.V(logger.Error).Infof("invalid receipt array RLP for hash %x: %v", hash, err)
-		return nil
-	}
-	receipts := make(types.Receipts, len(rs))
-	for i, receipt := range rs {
-		receipts[i] = (*types.Receipt)(receipt)
-	}
-	return receipts
-}
-
-// PutBlockReceipts stores the block's transactions associated receipts
-// and stores them by block hash in a single slice. This is required for
-// forks and chain reorgs
-func PutBlockReceipts(db ethdb.Database, hash common.Hash, receipts types.Receipts) error {
-	rs := make([]*types.ReceiptForStorage, len(receipts))
-	for i, receipt := range receipts {
-		rs[i] = (*types.ReceiptForStorage)(receipt)
-	}
-	bytes, err := rlp.EncodeToBytes(rs)
-	if err != nil {
-		return err
-	}
-	err = db.Put(append(blockReceiptsPre, hash[:]...), bytes)
-	if err != nil {
-		return err
-	}
-	return nil
-}