2014-10-31 06:43:14 -07:00
|
|
|
package state
|
2014-07-22 02:54:48 -07:00
|
|
|
|
|
|
|
import (
|
2015-02-17 04:10:18 -08:00
|
|
|
"bytes"
|
2014-07-22 02:54:48 -07:00
|
|
|
"fmt"
|
2014-07-29 15:31:15 -07:00
|
|
|
"math/big"
|
|
|
|
|
2014-10-31 04:37:43 -07:00
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
2014-10-23 06:01:27 -07:00
|
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
2015-02-17 04:10:18 -08:00
|
|
|
"github.com/ethereum/go-ethereum/rlp"
|
2015-01-08 02:47:04 -08:00
|
|
|
"github.com/ethereum/go-ethereum/trie"
|
2014-07-22 02:54:48 -07:00
|
|
|
)
|
|
|
|
|
|
|
|
type Code []byte
|
|
|
|
|
|
|
|
func (self Code) String() string {
|
2014-07-22 06:57:54 -07:00
|
|
|
return string(self) //strings.Join(Disassemble(self), " ")
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
type Storage map[string]*ethutil.Value
|
|
|
|
|
2015-02-26 09:39:05 -08:00
|
|
|
func (self Storage) String() (str string) {
|
|
|
|
for key, value := range self {
|
|
|
|
str += fmt.Sprintf("%X : %X\n", key, value.Bytes())
|
|
|
|
}
|
|
|
|
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
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
|
|
|
|
}
|
|
|
|
|
|
|
|
return cpy
|
|
|
|
}
|
|
|
|
|
|
|
|
type StateObject struct {
|
2015-01-07 04:17:48 -08:00
|
|
|
db ethutil.Database
|
2014-07-22 02:54:48 -07:00
|
|
|
// Address of the object
|
|
|
|
address []byte
|
|
|
|
// Shared attributes
|
2014-10-22 06:22:21 -07:00
|
|
|
balance *big.Int
|
2014-09-15 06:42:12 -07:00
|
|
|
codeHash []byte
|
2015-02-20 05:19:34 -08:00
|
|
|
nonce uint64
|
2014-07-22 02:54:48 -07:00
|
|
|
// Contract related attributes
|
2014-12-04 02:40:20 -08:00
|
|
|
State *StateDB
|
2015-02-20 05:19:34 -08:00
|
|
|
code Code
|
|
|
|
initCode Code
|
2014-07-22 02:54:48 -07:00
|
|
|
|
|
|
|
storage Storage
|
|
|
|
|
|
|
|
// Total gas pool is the total amount of gas currently
|
|
|
|
// left if this object is the coinbase. Gas is directly
|
|
|
|
// purchased of the coinbase.
|
|
|
|
gasPool *big.Int
|
|
|
|
|
|
|
|
// Mark for deletion
|
|
|
|
// When an object is marked for deletion it will be delete from the trie
|
|
|
|
// during the "update" phase of the state transition
|
|
|
|
remove bool
|
2015-02-19 13:33:22 -08:00
|
|
|
dirty bool
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) Reset() {
|
|
|
|
self.storage = make(Storage)
|
2014-07-24 03:04:15 -07:00
|
|
|
self.State.Reset()
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2015-01-07 04:17:48 -08:00
|
|
|
func NewStateObject(addr []byte, db ethutil.Database) *StateObject {
|
2014-07-22 02:54:48 -07:00
|
|
|
// This to ensure that it has 20 bytes (and not 0 bytes), thus left or right pad doesn't matter.
|
|
|
|
address := ethutil.Address(addr)
|
|
|
|
|
2015-02-20 05:01:30 -08:00
|
|
|
object := &StateObject{db: db, address: address, balance: new(big.Int), gasPool: new(big.Int), dirty: true}
|
2015-01-07 04:17:48 -08:00
|
|
|
object.State = New(nil, db) //New(trie.New(ethutil.Config.Db, ""))
|
2014-07-22 02:54:48 -07:00
|
|
|
object.storage = make(Storage)
|
|
|
|
object.gasPool = new(big.Int)
|
|
|
|
|
|
|
|
return object
|
|
|
|
}
|
|
|
|
|
2015-01-07 04:17:48 -08:00
|
|
|
func NewStateObjectFromBytes(address, data []byte, db ethutil.Database) *StateObject {
|
2015-02-17 04:10:18 -08:00
|
|
|
// TODO clean me up
|
|
|
|
var extobject struct {
|
|
|
|
Nonce uint64
|
|
|
|
Balance *big.Int
|
|
|
|
Root []byte
|
|
|
|
CodeHash []byte
|
|
|
|
}
|
|
|
|
err := rlp.Decode(bytes.NewReader(data), &extobject)
|
|
|
|
if err != nil {
|
|
|
|
fmt.Println(err)
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2015-01-07 04:17:48 -08:00
|
|
|
object := &StateObject{address: address, db: db}
|
2015-02-17 04:10:18 -08:00
|
|
|
//object.RlpDecode(data)
|
2015-02-20 05:19:34 -08:00
|
|
|
object.nonce = extobject.Nonce
|
2015-02-17 04:10:18 -08:00
|
|
|
object.balance = extobject.Balance
|
|
|
|
object.codeHash = extobject.CodeHash
|
|
|
|
object.State = New(extobject.Root, db)
|
|
|
|
object.storage = make(map[string]*ethutil.Value)
|
|
|
|
object.gasPool = new(big.Int)
|
2015-02-20 05:19:34 -08:00
|
|
|
object.code, _ = db.Get(extobject.CodeHash)
|
2014-07-22 02:54:48 -07:00
|
|
|
|
|
|
|
return object
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) MarkForDeletion() {
|
|
|
|
self.remove = true
|
2015-02-20 05:19:34 -08:00
|
|
|
self.dirty = true
|
|
|
|
statelogger.DebugDetailf("%x: #%d %v (deletion)\n", self.Address(), self.nonce, self.balance)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2014-12-23 09:35:36 -08:00
|
|
|
func (c *StateObject) getAddr(addr []byte) *ethutil.Value {
|
|
|
|
return ethutil.NewValueFromBytes([]byte(c.State.trie.Get(addr)))
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2014-12-23 09:35:36 -08:00
|
|
|
func (c *StateObject) setAddr(addr []byte, value interface{}) {
|
|
|
|
c.State.trie.Update(addr, ethutil.Encode(value))
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) GetStorage(key *big.Int) *ethutil.Value {
|
2014-10-15 08:12:26 -07:00
|
|
|
return self.GetState(key.Bytes())
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
func (self *StateObject) SetStorage(key *big.Int, value *ethutil.Value) {
|
2014-10-15 08:12:26 -07:00
|
|
|
self.SetState(key.Bytes(), value)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2015-02-26 09:39:05 -08:00
|
|
|
func (self *StateObject) Storage() Storage {
|
2014-10-16 04:38:21 -07:00
|
|
|
return self.storage
|
|
|
|
}
|
|
|
|
|
2014-10-15 08:12:26 -07:00
|
|
|
func (self *StateObject) GetState(k []byte) *ethutil.Value {
|
2014-07-22 02:54:48 -07:00
|
|
|
key := ethutil.LeftPadBytes(k, 32)
|
|
|
|
|
|
|
|
value := self.storage[string(key)]
|
|
|
|
if value == nil {
|
2014-12-23 09:35:36 -08:00
|
|
|
value = self.getAddr(key)
|
2014-07-22 02:54:48 -07:00
|
|
|
|
|
|
|
if !value.IsNil() {
|
|
|
|
self.storage[string(key)] = value
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return value
|
|
|
|
}
|
|
|
|
|
2014-10-15 08:12:26 -07:00
|
|
|
func (self *StateObject) SetState(k []byte, value *ethutil.Value) {
|
2014-07-22 02:54:48 -07:00
|
|
|
key := ethutil.LeftPadBytes(k, 32)
|
|
|
|
self.storage[string(key)] = value.Copy()
|
2015-02-20 05:01:30 -08:00
|
|
|
self.dirty = true
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) Sync() {
|
|
|
|
for key, value := range self.storage {
|
2014-11-19 06:05:08 -08:00
|
|
|
if value.Len() == 0 {
|
2014-12-23 09:35:36 -08:00
|
|
|
self.State.trie.Delete([]byte(key))
|
2014-07-22 02:54:48 -07:00
|
|
|
continue
|
|
|
|
}
|
|
|
|
|
2014-12-23 09:35:36 -08:00
|
|
|
self.setAddr([]byte(key), value)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
2015-02-19 04:34:27 -08:00
|
|
|
self.storage = make(Storage)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *StateObject) GetInstr(pc *big.Int) *ethutil.Value {
|
2015-02-20 05:19:34 -08:00
|
|
|
if int64(len(c.code)-1) < pc.Int64() {
|
2014-07-22 02:54:48 -07:00
|
|
|
return ethutil.NewValue(0)
|
|
|
|
}
|
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
return ethutil.NewValueFromBytes([]byte{c.code[pc.Int64()]})
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2014-10-22 06:22:21 -07:00
|
|
|
func (c *StateObject) AddBalance(amount *big.Int) {
|
|
|
|
c.SetBalance(new(big.Int).Add(c.balance, amount))
|
2014-07-22 02:54:48 -07:00
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
statelogger.Debugf("%x: #%d %v (+ %v)\n", c.Address(), c.nonce, c.balance, amount)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2014-10-22 06:22:21 -07:00
|
|
|
func (c *StateObject) SubBalance(amount *big.Int) {
|
|
|
|
c.SetBalance(new(big.Int).Sub(c.balance, amount))
|
2014-07-22 02:54:48 -07:00
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
statelogger.Debugf("%x: #%d %v (- %v)\n", c.Address(), c.nonce, c.balance, amount)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2014-07-29 15:31:15 -07:00
|
|
|
func (c *StateObject) SetBalance(amount *big.Int) {
|
2014-10-22 06:22:21 -07:00
|
|
|
c.balance = amount
|
2015-02-20 05:01:30 -08:00
|
|
|
c.dirty = true
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2015-02-26 09:39:05 -08:00
|
|
|
func (c *StateObject) St() Storage {
|
|
|
|
return c.storage
|
|
|
|
}
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
//
|
|
|
|
// Gas setters and getters
|
|
|
|
//
|
|
|
|
|
|
|
|
// Return the gas back to the origin. Used by the Virtual machine or Closures
|
|
|
|
func (c *StateObject) ReturnGas(gas, price *big.Int) {}
|
|
|
|
func (c *StateObject) ConvertGas(gas, price *big.Int) error {
|
|
|
|
total := new(big.Int).Mul(gas, price)
|
2014-10-22 06:22:21 -07:00
|
|
|
if total.Cmp(c.balance) > 0 {
|
|
|
|
return fmt.Errorf("insufficient amount: %v, %v", c.balance, total)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2015-02-26 09:39:05 -08:00
|
|
|
c.SubBalance(total)
|
2014-07-22 02:54:48 -07:00
|
|
|
|
2015-02-20 05:01:30 -08:00
|
|
|
c.dirty = true
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) SetGasPool(gasLimit *big.Int) {
|
|
|
|
self.gasPool = new(big.Int).Set(gasLimit)
|
|
|
|
|
2014-12-01 11:18:09 -08:00
|
|
|
statelogger.Debugf("%x: gas (+ %v)", self.Address(), self.gasPool)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) BuyGas(gas, price *big.Int) error {
|
|
|
|
if self.gasPool.Cmp(gas) < 0 {
|
|
|
|
return GasLimitError(self.gasPool, gas)
|
|
|
|
}
|
|
|
|
|
2015-02-19 13:33:22 -08:00
|
|
|
self.gasPool.Sub(self.gasPool, gas)
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
rGas := new(big.Int).Set(gas)
|
|
|
|
rGas.Mul(rGas, price)
|
|
|
|
|
2015-02-26 09:39:05 -08:00
|
|
|
self.AddBalance(rGas)
|
2014-07-22 02:54:48 -07:00
|
|
|
|
2015-02-20 05:01:30 -08:00
|
|
|
self.dirty = true
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) RefundGas(gas, price *big.Int) {
|
|
|
|
self.gasPool.Add(self.gasPool, gas)
|
|
|
|
|
|
|
|
rGas := new(big.Int).Set(gas)
|
|
|
|
rGas.Mul(rGas, price)
|
|
|
|
|
2014-10-22 06:22:21 -07:00
|
|
|
self.balance.Sub(self.balance, rGas)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) Copy() *StateObject {
|
2015-01-07 04:17:48 -08:00
|
|
|
stateObject := NewStateObject(self.Address(), self.db)
|
2014-10-22 06:22:21 -07:00
|
|
|
stateObject.balance.Set(self.balance)
|
2014-09-15 06:42:12 -07:00
|
|
|
stateObject.codeHash = ethutil.CopyBytes(self.codeHash)
|
2015-02-20 05:19:34 -08:00
|
|
|
stateObject.nonce = self.nonce
|
2014-07-24 03:04:15 -07:00
|
|
|
if self.State != nil {
|
|
|
|
stateObject.State = self.State.Copy()
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
2015-02-20 05:19:34 -08:00
|
|
|
stateObject.code = ethutil.CopyBytes(self.code)
|
|
|
|
stateObject.initCode = ethutil.CopyBytes(self.initCode)
|
2014-07-22 02:54:48 -07:00
|
|
|
stateObject.storage = self.storage.Copy()
|
|
|
|
stateObject.gasPool.Set(self.gasPool)
|
2014-08-25 02:29:42 -07:00
|
|
|
stateObject.remove = self.remove
|
2015-02-19 13:33:22 -08:00
|
|
|
stateObject.dirty = self.dirty
|
2014-07-22 02:54:48 -07:00
|
|
|
|
|
|
|
return stateObject
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) Set(stateObject *StateObject) {
|
|
|
|
*self = *stateObject
|
|
|
|
}
|
|
|
|
|
|
|
|
//
|
|
|
|
// Attribute accessors
|
|
|
|
//
|
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
func (self *StateObject) Balance() *big.Int {
|
|
|
|
return self.balance
|
|
|
|
}
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
func (c *StateObject) N() *big.Int {
|
2015-02-20 05:19:34 -08:00
|
|
|
return big.NewInt(int64(c.nonce))
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
// Returns the address of the contract/account
|
|
|
|
func (c *StateObject) Address() []byte {
|
|
|
|
return c.address
|
|
|
|
}
|
|
|
|
|
|
|
|
// Returns the initialization Code
|
|
|
|
func (c *StateObject) Init() Code {
|
2015-02-20 05:19:34 -08:00
|
|
|
return c.initCode
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
2015-03-03 03:25:44 -08:00
|
|
|
func (self *StateObject) Trie() *trie.SecureTrie {
|
2014-12-23 09:35:36 -08:00
|
|
|
return self.State.trie
|
|
|
|
}
|
|
|
|
|
2014-11-03 14:45:44 -08:00
|
|
|
func (self *StateObject) Root() []byte {
|
2014-12-23 09:35:36 -08:00
|
|
|
return self.Trie().Root()
|
2014-11-03 14:45:44 -08:00
|
|
|
}
|
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
func (self *StateObject) Code() []byte {
|
|
|
|
return self.code
|
|
|
|
}
|
|
|
|
|
2014-12-03 08:06:54 -08:00
|
|
|
func (self *StateObject) SetCode(code []byte) {
|
2015-02-20 05:19:34 -08:00
|
|
|
self.code = code
|
|
|
|
self.dirty = true
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) SetInitCode(code []byte) {
|
|
|
|
self.initCode = code
|
|
|
|
self.dirty = true
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) SetNonce(nonce uint64) {
|
|
|
|
self.nonce = nonce
|
|
|
|
self.dirty = true
|
|
|
|
}
|
|
|
|
|
|
|
|
func (self *StateObject) Nonce() uint64 {
|
|
|
|
return self.nonce
|
2014-12-03 08:06:54 -08:00
|
|
|
}
|
|
|
|
|
2014-07-22 02:54:48 -07:00
|
|
|
//
|
|
|
|
// Encoding
|
|
|
|
//
|
|
|
|
|
|
|
|
// State object encoding methods
|
|
|
|
func (c *StateObject) RlpEncode() []byte {
|
2015-02-20 05:19:34 -08:00
|
|
|
return ethutil.Encode([]interface{}{c.nonce, c.balance, c.Root(), c.CodeHash()})
|
2014-09-15 06:42:12 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *StateObject) CodeHash() ethutil.Bytes {
|
2015-02-20 05:19:34 -08:00
|
|
|
return crypto.Sha3(c.code)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *StateObject) RlpDecode(data []byte) {
|
|
|
|
decoder := ethutil.NewValueFromBytes(data)
|
2015-02-20 05:19:34 -08:00
|
|
|
c.nonce = decoder.Get(0).Uint()
|
2014-10-22 06:22:21 -07:00
|
|
|
c.balance = decoder.Get(1).BigInt()
|
2015-01-07 04:17:48 -08:00
|
|
|
c.State = New(decoder.Get(2).Bytes(), c.db) //New(trie.New(ethutil.Config.Db, decoder.Get(2).Interface()))
|
2014-07-22 02:54:48 -07:00
|
|
|
c.storage = make(map[string]*ethutil.Value)
|
|
|
|
c.gasPool = new(big.Int)
|
|
|
|
|
2014-09-15 06:42:12 -07:00
|
|
|
c.codeHash = decoder.Get(3).Bytes()
|
2014-07-22 02:54:48 -07:00
|
|
|
|
2015-02-20 05:19:34 -08:00
|
|
|
c.code, _ = c.db.Get(c.codeHash)
|
2014-07-22 02:54:48 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
// Storage change object. Used by the manifest for notifying changes to
|
|
|
|
// the sub channels.
|
|
|
|
type StorageState struct {
|
|
|
|
StateAddress []byte
|
|
|
|
Address []byte
|
|
|
|
Value *big.Int
|
|
|
|
}
|