cerc-io/plugeth
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Store and retrieve tx context metadata #608

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Improving this in the future will allow for cleaning up a bit of legacy
code.
This commit is contained in:
Taylor Gerring 2015-03-31 22:40:12 +02:00
parent 7e3875b527
commit 40ea466200
3 changed files with 51 additions and 8 deletions
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28
core/block_processor.go
View File

@ -233,8 +233,9 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
sm.txpool.RemoveSet(block.Transactions())
}
for _, tx := range block.Transactions() {
putTx(sm.extraDb, tx)
// This puts transactions in a extra db for rpc
for i, tx := range block.Transactions() {
putTx(sm.extraDb, tx, block, i)
}
if uncle {
@ -358,11 +359,32 @@ func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err erro
return state.Logs(), nil
}
func putTx(db common.Database, tx *types.Transaction) {
func putTx(db common.Database, tx *types.Transaction, block *types.Block, i int) {
rlpEnc, err := rlp.EncodeToBytes(tx)
if err != nil {
statelogger.Infoln("Failed encoding tx", err)
return
}
db.Put(tx.Hash().Bytes(), rlpEnc)
rlpEnc, err = rlp.EncodeToBytes(block.Hash().Bytes())
if err != nil {
statelogger.Infoln("Failed encoding meta", err)
return
}
db.Put(append(tx.Hash().Bytes(), 0x0001), rlpEnc)
rlpEnc, err = rlp.EncodeToBytes(block.Number().Bytes())
if err != nil {
statelogger.Infoln("Failed encoding meta", err)
return
}
db.Put(append(tx.Hash().Bytes(), 0x0002), rlpEnc)
rlpEnc, err = rlp.EncodeToBytes(i)
if err != nil {
statelogger.Infoln("Failed encoding meta", err)
return
}
db.Put(append(tx.Hash().Bytes(), 0x0003), rlpEnc)
}

8
rpc/api.go
View File

@ -199,9 +199,13 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
args := new(HashIndexArgs)
if err := json.Unmarshal(req.Params, &args); err != nil {
}
tx := api.xeth().EthTransactionByHash(args.Hash)
tx, bhash, bnum, txi := api.xeth().EthTransactionByHash(args.Hash)
if tx != nil {
*reply = NewTransactionRes(tx)
v := NewTransactionRes(tx)
v.BlockHash = newHexData(bhash)
v.BlockNumber = newHexNum(bnum)
v.TxIndex = newHexNum(txi)
*reply = v
}
case "eth_getTransactionByBlockHashAndIndex":
args := new(HashIndexArgs)

23
xeth/xeth.go
View File

@ -185,12 +185,29 @@ func (self *XEth) EthBlockByHash(strHash string) *types.Block {
return block
}
func (self *XEth) EthTransactionByHash(hash string) *types.Transaction {
func (self *XEth) EthTransactionByHash(hash string) (tx *types.Transaction, blhash common.Hash, blnum *big.Int, txi uint64) {
data, _ := self.backend.ExtraDb().Get(common.FromHex(hash))
if len(data) != 0 {
return types.NewTransactionFromBytes(data)
tx = types.NewTransactionFromBytes(data)
}
return nil
// blockhash
data, _ = self.backend.ExtraDb().Get(append(common.FromHex(hash), 0x0001))
if len(data) != 0 {
blhash = common.BytesToHash(data)
}
// blocknum
data, _ = self.backend.ExtraDb().Get(append(common.FromHex(hash), 0x0002))
if len(data) != 0 {
blnum = common.Bytes2Big(data)
}
// txindex
data, _ = self.backend.ExtraDb().Get(append(common.FromHex(hash), 0x0003))
if len(data) != 0 {
txi = common.BytesToNumber(data)
}
return
}
func (self *XEth) BlockByNumber(num int64) *Block {