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core/state, core/vm: reworked storage get / set to use common.Hash

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This commit is contained in:
obscuren 2015-06-17 11:24:40 +02:00
parent 5721fcf668
commit 787a61bb27
5 changed files with 45 additions and 41 deletions
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4
common/types.go
View File

@ -62,6 +62,10 @@ func (h Hash) Generate(rand *rand.Rand, size int) reflect.Value {
return reflect.ValueOf(h)
}
func EmptyHash(h Hash) bool {
return h == Hash{}
}
/////////// Address
func BytesToAddress(b []byte) Address {
var a Address

47
core/state/state_object.go
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@ -19,11 +19,11 @@ func (self Code) String() string {
return string(self) //strings.Join(Disassemble(self), " ")
}
type Storage map[string]*common.Value
type Storage map[string]common.Hash
func (self Storage) String() (str string) {
for key, value := range self {
str += fmt.Sprintf("%X : %X\n", key, value.Bytes())
str += fmt.Sprintf("%X : %X\n", key, value)
}
return
@ -32,7 +32,6 @@ func (self Storage) String() (str string) {
func (self Storage) Copy() Storage {
cpy := make(Storage)
for key, value := range self {
// XXX Do we need a 'value' copy or is this sufficient?
cpy[key] = value
}
@ -112,7 +111,7 @@ func NewStateObjectFromBytes(address common.Address, data []byte, db common.Data
object.balance = extobject.Balance
object.codeHash = extobject.CodeHash
object.State = New(extobject.Root, db)
object.storage = make(map[string]*common.Value)
object.storage = make(map[string]common.Hash)
object.gasPool = new(big.Int)
object.prepaid = new(big.Int)
object.code, _ = db.Get(extobject.CodeHash)
@ -129,35 +128,29 @@ func (self *StateObject) MarkForDeletion() {
}
}
func (c *StateObject) getAddr(addr common.Hash) *common.Value {
return common.NewValueFromBytes([]byte(c.State.trie.Get(addr[:])))
func (c *StateObject) getAddr(addr common.Hash) (ret common.Hash) {
return common.BytesToHash(common.NewValueFromBytes([]byte(c.State.trie.Get(addr[:]))).Bytes())
}
func (c *StateObject) setAddr(addr []byte, value interface{}) {
c.State.trie.Update(addr, common.Encode(value))
}
func (self *StateObject) GetStorage(key *big.Int) *common.Value {
fmt.Printf("%v: get %v %v", self.address.Hex(), key)
return self.GetState(common.BytesToHash(key.Bytes()))
}
func (self *StateObject) SetStorage(key *big.Int, value *common.Value) {
fmt.Printf("%v: set %v -> %v", self.address.Hex(), key, value)
self.SetState(common.BytesToHash(key.Bytes()), value)
func (c *StateObject) setAddr(addr []byte, value common.Hash) {
v, err := rlp.EncodeToBytes(bytes.TrimLeft(value[:], "\x00"))
if err != nil {
// if RLPing failed we better panic and not fail silently. This would be considered a consensus issue
panic(err)
}
c.State.trie.Update(addr, v)
}
func (self *StateObject) Storage() Storage {
return self.storage
}
func (self *StateObject) GetState(key common.Hash) *common.Value {
func (self *StateObject) GetState(key common.Hash) common.Hash {
strkey := key.Str()
value := self.storage[strkey]
if value == nil {
value, exists := self.storage[strkey]
if !exists {
value = self.getAddr(key)
if !value.IsNil() {
if (value != common.Hash{}) {
self.storage[strkey] = value
}
}
@ -165,14 +158,14 @@ func (self *StateObject) GetState(key common.Hash) *common.Value {
return value
}
func (self *StateObject) SetState(k common.Hash, value *common.Value) {
self.storage[k.Str()] = value.Copy()
func (self *StateObject) SetState(k, value common.Hash) {
self.storage[k.Str()] = value
self.dirty = true
}
func (self *StateObject) Sync() {
for key, value := range self.storage {
if value.Len() == 0 {
if (value == common.Hash{}) {
self.State.trie.Delete([]byte(key))
continue
}
@ -370,7 +363,7 @@ func (c *StateObject) RlpDecode(data []byte) {
c.nonce = decoder.Get(0).Uint()
c.balance = decoder.Get(1).BigInt()
c.State = New(common.BytesToHash(decoder.Get(2).Bytes()), c.db) //New(trie.New(common.Config.Db, decoder.Get(2).Interface()))
c.storage = make(map[string]*common.Value)
c.storage = make(map[string]common.Hash)
c.gasPool = new(big.Int)
c.codeHash = decoder.Get(3).Bytes()

10
core/state/statedb.go
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@ -103,13 +103,13 @@ func (self *StateDB) GetCode(addr common.Address) []byte {
return nil
}
func (self *StateDB) GetState(a common.Address, b common.Hash) []byte {
func (self *StateDB) GetState(a common.Address, b common.Hash) common.Hash {
stateObject := self.GetStateObject(a)
if stateObject != nil {
return stateObject.GetState(b).Bytes()
return stateObject.GetState(b)
}
return nil
return common.Hash{}
}
func (self *StateDB) IsDeleted(addr common.Address) bool {
@ -145,10 +145,10 @@ func (self *StateDB) SetCode(addr common.Address, code []byte) {
}
}
func (self *StateDB) SetState(addr common.Address, key common.Hash, value interface{}) {
func (self *StateDB) SetState(addr common.Address, key common.Hash, value common.Hash) {
stateObject := self.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetState(key, common.NewValue(value))
stateObject.SetState(key, value)
}
}

15
core/vm/vm.go
View File

@ -506,14 +506,14 @@ func (self *Vm) Run(context *Context, input []byte) (ret []byte, err error) {
case SLOAD:
loc := common.BigToHash(stack.pop())
val := common.Bytes2Big(statedb.GetState(context.Address(), loc))
val := statedb.GetState(context.Address(), loc).Big()
stack.push(val)
case SSTORE:
loc := common.BigToHash(stack.pop())
val := stack.pop()
statedb.SetState(context.Address(), loc, val)
statedb.SetState(context.Address(), loc, common.BigToHash(val))
case JUMP:
if err := jump(pc, stack.pop()); err != nil {
@ -686,10 +686,10 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
var g *big.Int
y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
val := statedb.GetState(context.Address(), common.BigToHash(x))
if len(val) == 0 && len(y.Bytes()) > 0 {
if common.EmptyHash(val) && !common.EmptyHash(common.BigToHash(y)) {
// 0 => non 0
g = params.SstoreSetGas
} else if len(val) > 0 && len(y.Bytes()) == 0 {
} else if !common.EmptyHash(val) && common.EmptyHash(common.BigToHash(y)) {
statedb.Refund(params.SstoreRefundGas)
g = params.SstoreClearGas
@ -697,6 +697,13 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
// non 0 => non 0 (or 0 => 0)
g = params.SstoreClearGas
}
/*
if len(val) == 0 && len(y.Bytes()) > 0 {
} else if len(val) > 0 && len(y.Bytes()) == 0 {
} else {
}
*/
gas.Set(g)
case SUICIDE:
if !statedb.IsDeleted(context.Address()) {

10
tests/vm/gh_test.go
View File

@ -97,7 +97,7 @@ func RunVmTest(p string, t *testing.T) {
obj := StateObjectFromAccount(db, addr, account)
statedb.SetStateObject(obj)
for a, v := range account.Storage {
obj.SetState(common.HexToHash(a), common.NewValue(helper.FromHex(v)))
obj.SetState(common.HexToHash(a), common.HexToHash(v))
}
}
@ -168,11 +168,11 @@ func RunVmTest(p string, t *testing.T) {
}
for addr, value := range account.Storage {
v := obj.GetState(common.HexToHash(addr)).Bytes()
vexp := helper.FromHex(value)
v := obj.GetState(common.HexToHash(addr))
vexp := common.HexToHash(value)
if bytes.Compare(v, vexp) != 0 {
t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address().Bytes()[0:4], addr, vexp, v, common.BigD(vexp), common.BigD(v))
if v != vexp {
t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address().Bytes()[0:4], addr, vexp, v, vexp.Big(), v.Big())
}
}
}