Merge branch 'develop' into poc8

Conflicts:
	cmd/ethereum/flags.go

4 files changed, 47 insertions, 43 deletions

diff --git a/core/block_manager.go b/core/block_manager.go
index 85b4891a5..b60cecc29 100644
--- a/core/block_manager.go
+++ b/core/block_manager.go
@@ -127,7 +127,6 @@ done:
 				statelogger.Infoln(err)
 				erroneous = append(erroneous, tx)
 				err = nil
-				continue
 			}
 		}
 
@@ -141,6 +140,7 @@ 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 {
@@ -213,6 +213,8 @@ func (sm *BlockManager) ProcessWithParent(block, parent *types.Block) (td *big.I
 
 	receiptSha := types.DeriveSha(receipts)
 	if bytes.Compare(receiptSha, block.ReceiptSha) != 0 {
+		//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
 	}
diff --git a/core/execution.go b/core/execution.go
index cd98746c4..b7eead0dd 100644
--- a/core/execution.go
+++ b/core/execution.go
@@ -3,23 +3,21 @@ package core
 import (
 	"fmt"
 	"math/big"
+	"time"
 
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/vm"
 )
 
 type Execution struct {
-	vm                vm.VirtualMachine
+	env               vm.Environment
 	address, input    []byte
 	Gas, price, value *big.Int
-	object            *state.StateObject
 	SkipTransfer      bool
 }
 
 func NewExecution(env vm.Environment, address, input []byte, gas, gasPrice, value *big.Int) *Execution {
-	evm := vm.New(env, vm.DebugVmTy)
-
-	return &Execution{vm: evm, address: address, input: input, Gas: gas, price: gasPrice, value: value}
+	return &Execution{env: env, address: address, input: input, Gas: gas, price: gasPrice, value: value}
 }
 
 func (self *Execution) Addr() []byte {
@@ -28,16 +26,16 @@ func (self *Execution) Addr() []byte {
 
 func (self *Execution) Call(codeAddr []byte, caller vm.ClosureRef) ([]byte, error) {
 	// Retrieve the executing code
-	code := self.vm.Env().State().GetCode(codeAddr)
+	code := self.env.State().GetCode(codeAddr)
 
 	return self.exec(code, codeAddr, caller)
 }
 
 func (self *Execution) exec(code, contextAddr []byte, caller vm.ClosureRef) (ret []byte, err error) {
-	env := self.vm.Env()
-	chainlogger.Debugf("pre state %x\n", env.State().Root())
+	env := self.env
+	evm := vm.New(env, vm.DebugVmTy)
 
-	if self.vm.Env().Depth() == vm.MaxCallDepth {
+	if env.Depth() == vm.MaxCallDepth {
 		// Consume all gas (by not returning it) and return a depth error
 		return nil, vm.DepthError{}
 	}
@@ -55,22 +53,19 @@ func (self *Execution) exec(code, contextAddr []byte, caller vm.ClosureRef) (ret
 	}
 
 	snapshot := env.State().Copy()
-	defer func() {
-		if /*vm.IsDepthErr(err) ||*/ vm.IsOOGErr(err) {
-			env.State().Set(snapshot)
-		}
-		chainlogger.Debugf("post state %x\n", env.State().Root())
-	}()
-
-	self.object = to
-	ret, err = self.vm.Run(to, caller, code, self.value, self.Gas, self.price, self.input)
+	start := time.Now()
+	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
 }
 
 func (self *Execution) Create(caller vm.ClosureRef) (ret []byte, err error, account *state.StateObject) {
 	ret, err = self.exec(self.input, nil, caller)
-	account = self.vm.Env().State().GetStateObject(self.address)
+	account = self.env.State().GetStateObject(self.address)
 
 	return
 }
diff --git a/core/state_transition.go b/core/state_transition.go
index 9e81ddf28..7b7026c29 100644
--- a/core/state_transition.go
+++ b/core/state_transition.go
@@ -112,7 +112,7 @@ func (self *StateTransition) BuyGas() error {
 
 	sender := self.From()
 	if sender.Balance().Cmp(MessageGasValue(self.msg)) < 0 {
-		return fmt.Errorf("Insufficient funds to pre-pay gas. Req %v, has %v", MessageGasValue(self.msg), sender.Balance())
+		return fmt.Errorf("insufficient ETH for gas (%x). Req %v, has %v", sender.Address()[:4], MessageGasValue(self.msg), sender.Balance())
 	}
 
 	coinbase := self.Coinbase()
@@ -186,15 +186,22 @@ func (self *StateTransition) TransitionState() (ret []byte, err error) {
 	vmenv := self.VmEnv()
 	var ref vm.ClosureRef
 	if MessageCreatesContract(msg) {
-		self.rec = MakeContract(msg, self.state)
-
-		ret, err, ref = vmenv.Create(sender, self.rec.Address(), self.msg.Data(), self.gas, self.gasPrice, self.value)
-		ref.SetCode(ret)
+		contract := MakeContract(msg, self.state)
+		ret, err, ref = vmenv.Create(sender, contract.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)
+			}
+		}
 	} else {
 		ret, err = vmenv.Call(self.From(), self.To().Address(), self.msg.Data(), self.gas, self.gasPrice, self.value)
 	}
+
 	if err != nil {
-		statelogger.Debugln(err)
+		self.UseGas(self.gas)
 	}
 
 	return
@@ -211,20 +218,19 @@ func MakeContract(msg Message, state *state.StateDB) *state.StateObject {
 }
 
 func (self *StateTransition) RefundGas() {
-	coinbaseSub := new(big.Int).Set(self.gas)
+	coinbase, sender := self.Coinbase(), self.From()
+	// 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)
-		coinbaseSub.Add(self.gas, refund)
+		self.gas.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)
+	coinbase.RefundGas(self.gas, self.msg.GasPrice())
 }
 
 func (self *StateTransition) GasUsed() *big.Int {
diff --git a/core/types/transaction.go b/core/types/transaction.go
index 95a256a76..3a87f7844 100644
--- a/core/types/transaction.go
+++ b/core/types/transaction.go
@@ -47,7 +47,7 @@ func NewTransactionFromValue(val *ethutil.Value) *Transaction {
 }
 
 func (tx *Transaction) Hash() []byte {
-	data := []interface{}{tx.Nonce, tx.gasPrice, tx.gas, tx.recipient, tx.Value, tx.Data}
+	data := []interface{}{tx.nonce, tx.gasPrice, tx.gas, tx.recipient, tx.value, tx.data}
 
 	return crypto.Sha3(ethutil.NewValue(data).Encode())
 }
@@ -108,8 +108,8 @@ func (tx *Transaction) PublicKey() []byte {
 	sig := append(r, s...)
 	sig = append(sig, v-27)
 
-	pubkey := crypto.Ecrecover(append(hash, sig...))
-	//pubkey, _ := secp256k1.RecoverPubkey(hash, sig)
+	//pubkey := crypto.Ecrecover(append(hash, sig...))
+	pubkey, _ := secp256k1.RecoverPubkey(hash, sig)
 
 	return pubkey
 }
@@ -138,9 +138,7 @@ func (tx *Transaction) Sign(privk []byte) error {
 }
 
 func (tx *Transaction) RlpData() interface{} {
-	data := []interface{}{tx.Nonce, tx.GasPrice, tx.Gas, tx.recipient, tx.Value, tx.Data}
-
-	// TODO Remove prefixing zero's
+	data := []interface{}{tx.nonce, tx.gasPrice, tx.gas, tx.recipient, tx.value, tx.data}
 
 	return append(data, tx.v, new(big.Int).SetBytes(tx.r).Bytes(), new(big.Int).SetBytes(tx.s).Bytes())
 }
@@ -184,6 +182,7 @@ func (tx *Transaction) String() string {
 	V:        0x%x
 	R:        0x%x
 	S:        0x%x
+	Hex:      %x
 	`,
 		tx.Hash(),
 		len(tx.recipient) == 0,
@@ -192,11 +191,13 @@ func (tx *Transaction) String() string {
 		tx.nonce,
 		tx.gasPrice,
 		tx.gas,
-		tx.Value,
-		tx.Data,
+		tx.value,
+		tx.data,
 		tx.v,
 		tx.r,
-		tx.s)
+		tx.s,
+		ethutil.Encode(tx),
+	)
 }
 
 // Transaction slice type for basic sorting