Minor updates on gas and removed/refactored old code.

core/block_manager.go

@@ -142,6 +142,7 @@ done:
 		receipt := types.NewReceipt(state.Root(), cumulative)
 		receipt.SetLogs(state.Logs())
 		receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
+		chainlogger.Debugln(receipt)
 
 		// Notify all subscribers
 		if !transientProcess {
@@ -214,7 +215,8 @@ func (sm *BlockManager) ProcessWithParent(block, parent *types.Block) (td *big.I
 
 	receiptSha := types.DeriveSha(receipts)
 	if bytes.Compare(receiptSha, block.ReceiptSha) != 0 {
-		chainlogger.Debugln(receipts)
+		//chainlogger.Debugf("validating receipt root. received=%x got=%x", block.ReceiptSha, receiptSha)
+		fmt.Printf("%x\n", ethutil.Encode(receipts))
 		err = fmt.Errorf("validating receipt root. received=%x got=%x", block.ReceiptSha, receiptSha)
 		return
 	}

core/execution.go

@@ -3,6 +3,7 @@ package core
 import (
 	"fmt"
 	"math/big"
+	"time"
 
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/vm"
@@ -12,7 +13,6 @@ type Execution struct {
 	env               vm.Environment
 	address, input    []byte
 	Gas, price, value *big.Int
-	object            *state.StateObject
 	SkipTransfer      bool
 }
 
@@ -35,8 +35,6 @@ func (self *Execution) exec(code, contextAddr []byte, caller vm.ClosureRef) (ret
 	env := self.env
 	evm := vm.New(env, vm.DebugVmTy)
 
-	chainlogger.Debugf("pre state %x\n", env.State().Root())
-
 	if env.Depth() == vm.MaxCallDepth {
 		// Consume all gas (by not returning it) and return a depth error
 		return nil, vm.DepthError{}
@@ -55,13 +53,12 @@ func (self *Execution) exec(code, contextAddr []byte, caller vm.ClosureRef) (ret
 	}
 
 	snapshot := env.State().Copy()
-	defer func() {
+	start := time.Now()
-		env.State().Set(snapshot)
-		chainlogger.Debugf("post state %x\n", env.State().Root())
-	}()
-
-	self.object = to
 	ret, err = evm.Run(to, caller, code, self.value, self.Gas, self.price, self.input)
+	if err != nil {
+		env.State().Set(snapshot)
+	}
+	chainlogger.Debugf("vm took %v\n", time.Since(start))
 
 	return
 }

core/state_transition.go

@@ -186,13 +186,13 @@ func (self *StateTransition) TransitionState() (ret []byte, err error) {
 	vmenv := self.VmEnv()
 	var ref vm.ClosureRef
 	if MessageCreatesContract(msg) {
-		self.rec = MakeContract(msg, self.state)
+		contract := MakeContract(msg, self.state)
-
+		ret, err, ref = vmenv.Create(sender, contract.Address(), self.msg.Data(), self.gas, self.gasPrice, self.value)
-		ret, err, ref = vmenv.Create(sender, self.rec.Address(), self.msg.Data(), self.gas, self.gasPrice, self.value)
 		if err == nil {
 			dataGas := big.NewInt(int64(len(ret)))
 			dataGas.Mul(dataGas, vm.GasCreateByte)
 			if err = self.UseGas(dataGas); err == nil {
+				//self.state.SetCode(ref.Address(), ret)
 				ref.SetCode(ret)
 			}
 		}
@@ -218,20 +218,19 @@ func MakeContract(msg Message, state *state.StateDB) *state.StateObject {
 }
 
 func (self *StateTransition) RefundGas() {
-	coinbaseSub := new(big.Int).Set(self.gas)
-	uhalf := new(big.Int).Div(self.GasUsed(), ethutil.Big2)
-	for addr, ref := range self.state.Refunds() {
-		refund := ethutil.BigMin(uhalf, ref)
-		coinbaseSub.Add(self.gas, refund)
-		self.state.AddBalance([]byte(addr), refund.Mul(refund, self.msg.GasPrice()))
-	}
-
 	coinbase, sender := self.Coinbase(), self.From()
-	coinbase.RefundGas(coinbaseSub, self.msg.GasPrice())
-
 	// Return remaining gas
 	remaining := new(big.Int).Mul(self.gas, self.msg.GasPrice())
 	sender.AddAmount(remaining)
+
+	uhalf := new(big.Int).Div(self.GasUsed(), ethutil.Big2)
+	for addr, ref := range self.state.Refunds() {
+		refund := ethutil.BigMin(uhalf, ref)
+		self.gas.Add(self.gas, refund)
+		self.state.AddBalance([]byte(addr), refund.Mul(refund, self.msg.GasPrice()))
+	}
+
+	coinbase.RefundGas(self.gas, self.msg.GasPrice())
 }
 
 func (self *StateTransition) GasUsed() *big.Int {

state/state.go

@@ -94,6 +94,13 @@ func (self *StateDB) GetCode(addr []byte) []byte {
 	return nil
 }
 
+func (self *StateDB) SetCode(addr, code []byte) {
+	stateObject := self.GetStateObject(addr)
+	if stateObject != nil {
+		stateObject.SetCode(code)
+	}
+}
+
 func (self *StateDB) GetState(a, b []byte) []byte {
 	stateObject := self.GetStateObject(a)
 	if stateObject != nil {

vm/environment.go

@@ -2,6 +2,7 @@ package vm
 
 import (
 	"errors"
+	"fmt"
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -74,3 +75,7 @@ func (self *Log) Data() []byte {
 func (self *Log) RlpData() interface{} {
 	return []interface{}{self.address, ethutil.ByteSliceToInterface(self.topics), self.data}
 }
+
+func (self *Log) String() string {
+	return fmt.Sprintf("[A=%x T=%x D=%x]", self.address, self.topics, self.data)
+}

vm/vm_debug.go

@@ -108,13 +108,13 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 		}
 	)
 
+	vmlogger.Debugf("(%d) (%x) %x (code=%d) gas: %v (d) %x\n", self.env.Depth(), caller.Address()[:4], closure.Address(), len(code), closure.Gas, callData)
+
 	// Don't bother with the execution if there's no code.
 	if len(code) == 0 {
 		return closure.Return(nil), nil
 	}
 
-	vmlogger.Debugf("(%d) (%x) %x gas: %v (d) %x\n", self.env.Depth(), caller.Address()[:4], closure.Address(), closure.Gas, callData)
-
 	for {
 		prevStep = step
 		// The base for all big integer arithmetic
@@ -134,6 +134,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 		addStepGasUsage(GasStep)
 
 		var newMemSize *big.Int = ethutil.Big0
+		var additionalGas *big.Int = new(big.Int)
 		// Stack Check, memory resize & gas phase
 		switch op {
 		// Stack checks only
@@ -213,22 +214,24 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 			newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
 		case SHA3:
 			require(2)
-
 			gas.Set(GasSha)
-
 			newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
+			additionalGas.Set(stack.data[stack.Len()-2])
 		case CALLDATACOPY:
 			require(2)
 
 			newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
+			additionalGas.Set(stack.data[stack.Len()-3])
 		case CODECOPY:
 			require(3)
 
 			newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
+			additionalGas.Set(stack.data[stack.Len()-3])
 		case EXTCODECOPY:
 			require(4)
 
 			newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-4])
+			additionalGas.Set(stack.data[stack.Len()-4])
 		case CALL, CALLCODE:
 			require(7)
 			gas.Set(GasCall)
@@ -245,20 +248,23 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 			newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-3])
 		}
 
+		switch op {
+		case CALLDATACOPY, CODECOPY, EXTCODECOPY:
+			additionalGas.Add(additionalGas, u256(31))
+			additionalGas.Div(additionalGas, u256(32))
+			addStepGasUsage(additionalGas)
+		case SHA3:
+			additionalGas.Add(additionalGas, u256(31))
+			additionalGas.Div(additionalGas, u256(32))
+			additionalGas.Mul(additionalGas, GasSha3Byte)
+			addStepGasUsage(additionalGas)
+		}
+
 		if newMemSize.Cmp(ethutil.Big0) > 0 {
 			newMemSize.Add(newMemSize, u256(31))
 			newMemSize.Div(newMemSize, u256(32))
 			newMemSize.Mul(newMemSize, u256(32))
 
-			switch op {
-			case CALLDATACOPY, CODECOPY, EXTCODECOPY:
-				addStepGasUsage(new(big.Int).Div(newMemSize, u256(32)))
-			case SHA3:
-				g := new(big.Int).Div(newMemSize, u256(32))
-				g.Mul(g, GasSha3Byte)
-				addStepGasUsage(g)
-			}
-
 			if newMemSize.Cmp(u256(int64(mem.Len()))) > 0 {
 				memGasUsage := new(big.Int).Sub(newMemSize, u256(int64(mem.Len())))
 				memGasUsage.Mul(GasMemory, memGasUsage)
@@ -643,9 +649,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 		case CODECOPY, EXTCODECOPY:
 			var code []byte
 			if op == EXTCODECOPY {
-				addr := stack.Pop().Bytes()
+				code = statedb.GetCode(stack.Pop().Bytes())
-
-				code = statedb.GetCode(addr)
 			} else {
 				code = closure.Code
 			}
@@ -663,12 +667,11 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 			} else if cOff+l > size {
 				l = uint64(math.Min(float64(cOff+l), float64(size)))
 			}
-
 			codeCopy := code[cOff : cOff+l]
 
 			mem.Set(mOff, l, codeCopy)
 
-			self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, code[cOff:cOff+l])
+			self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, codeCopy)
 		case GASPRICE:
 			stack.Push(closure.Price)
 
@@ -891,7 +894,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
 			size, offset := stack.Popn()
 			ret := mem.Get(offset.Int64(), size.Int64())
 
-			self.Printf(" => (%d) 0x%x", len(ret), ret).Endl()
+			self.Printf(" => [%v, %v] (%d) 0x%x", offset, size, len(ret), ret).Endl()
 
 			return closure.Return(ret), nil
 		case SUICIDE: