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authorobscuren <geffobscura@gmail.com>2015-05-12 20:14:08 +0800
committerobscuren <geffobscura@gmail.com>2015-05-12 20:21:43 +0800
commit66de3f0aa849849c5cf5ad84265f3f3ce8ca5282 (patch)
treebef9ea4c2ff86fd1be3285812dcb9c02d19cde23 /xeth/xeth.go
parent96d4a7d0870ee019098cf1991b00f6959843e6fd (diff)
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xeth, rpc: implement eth_estimateGas. Closes #930
Diffstat (limited to 'xeth/xeth.go')
-rw-r--r--xeth/xeth.go6
1 files changed, 4 insertions, 2 deletions
diff --git a/xeth/xeth.go b/xeth/xeth.go
index bf5844770..1ddd4c6e4 100644
--- a/xeth/xeth.go
+++ b/xeth/xeth.go
@@ -773,7 +773,7 @@ func (self *XEth) PushTx(encodedTx string) (string, error) {
return tx.Hash().Hex(), nil
}
-func (self *XEth) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
+func (self *XEth) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr string) (string, string, error) {
statedb := self.State().State() //self.eth.ChainManager().TransState()
var from *state.StateObject
if len(fromStr) == 0 {
@@ -807,8 +807,10 @@ func (self *XEth) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr st
block := self.CurrentBlock()
vmenv := core.NewEnv(statedb, self.backend.ChainManager(), msg, block)
+ initialGas := new(big.Int).Set(msg.gas)
res, err := vmenv.Call(msg.from, msg.to, msg.data, msg.gas, msg.gasPrice, msg.value)
- return common.ToHex(res), err
+
+ return common.ToHex(res), initialGas.Sub(initialGas, msg.gas).String(), err
}
func (self *XEth) ConfirmTransaction(tx string) bool {