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-rw-r--r--state/statedb.go325
1 files changed, 0 insertions, 325 deletions
diff --git a/state/statedb.go b/state/statedb.go
deleted file mode 100644
index 6fcd39dbc..000000000
--- a/state/statedb.go
+++ /dev/null
@@ -1,325 +0,0 @@
-package state
-
-import (
- "bytes"
- "math/big"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/logger"
- "github.com/ethereum/go-ethereum/trie"
-)
-
-var statelogger = logger.NewLogger("STATE")
-
-// StateDBs within the ethereum protocol are used to store anything
-// within the merkle trie. StateDBs take care of caching and storing
-// nested states. It's the general query interface to retrieve:
-// * Contracts
-// * Accounts
-type StateDB struct {
- db common.Database
- trie *trie.SecureTrie
-
- stateObjects map[string]*StateObject
-
- refund map[string]*big.Int
-
- logs Logs
-}
-
-// Create a new state from a given trie
-func New(root common.Hash, db common.Database) *StateDB {
- trie := trie.NewSecure(root[:], db)
- return &StateDB{db: db, trie: trie, stateObjects: make(map[string]*StateObject), refund: make(map[string]*big.Int)}
-}
-
-func (self *StateDB) PrintRoot() {
- self.trie.Trie.PrintRoot()
-}
-
-func (self *StateDB) EmptyLogs() {
- self.logs = nil
-}
-
-func (self *StateDB) AddLog(log Log) {
- self.logs = append(self.logs, log)
-}
-
-func (self *StateDB) Logs() Logs {
- return self.logs
-}
-
-func (self *StateDB) Refund(address common.Address, gas *big.Int) {
- addr := address.Str()
- if self.refund[addr] == nil {
- self.refund[addr] = new(big.Int)
- }
- self.refund[addr].Add(self.refund[addr], gas)
-}
-
-// Retrieve the balance from the given address or 0 if object not found
-func (self *StateDB) GetBalance(addr common.Address) *big.Int {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- return stateObject.balance
- }
-
- return common.Big0
-}
-
-func (self *StateDB) AddBalance(addr common.Address, amount *big.Int) {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- stateObject.AddBalance(amount)
- }
-}
-
-func (self *StateDB) GetNonce(addr common.Address) uint64 {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- return stateObject.nonce
- }
-
- return 0
-}
-
-func (self *StateDB) GetCode(addr common.Address) []byte {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- return stateObject.code
- }
-
- return nil
-}
-
-func (self *StateDB) GetState(a common.Address, b common.Hash) []byte {
- stateObject := self.GetStateObject(a)
- if stateObject != nil {
- return stateObject.GetState(b).Bytes()
- }
-
- return nil
-}
-
-func (self *StateDB) SetNonce(addr common.Address, nonce uint64) {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- stateObject.SetNonce(nonce)
- }
-}
-
-func (self *StateDB) SetCode(addr common.Address, code []byte) {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- stateObject.SetCode(code)
- }
-}
-
-func (self *StateDB) SetState(addr common.Address, key common.Hash, value interface{}) {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- stateObject.SetState(key, common.NewValue(value))
- }
-}
-
-func (self *StateDB) Delete(addr common.Address) bool {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- stateObject.MarkForDeletion()
- stateObject.balance = new(big.Int)
-
- return true
- }
-
- return false
-}
-
-func (self *StateDB) IsDeleted(addr common.Address) bool {
- stateObject := self.GetStateObject(addr)
- if stateObject != nil {
- return stateObject.remove
- }
- return false
-}
-
-//
-// Setting, updating & deleting state object methods
-//
-
-// Update the given state object and apply it to state trie
-func (self *StateDB) UpdateStateObject(stateObject *StateObject) {
- //addr := stateObject.Address()
-
- if len(stateObject.CodeHash()) > 0 {
- self.db.Put(stateObject.CodeHash(), stateObject.code)
- }
-
- addr := stateObject.Address()
- self.trie.Update(addr[:], stateObject.RlpEncode())
-}
-
-// Delete the given state object and delete it from the state trie
-func (self *StateDB) DeleteStateObject(stateObject *StateObject) {
- addr := stateObject.Address()
- self.trie.Delete(addr[:])
-
- delete(self.stateObjects, addr.Str())
-}
-
-// Retrieve a state object given my the address. Nil if not found
-func (self *StateDB) GetStateObject(addr common.Address) *StateObject {
- //addr = common.Address(addr)
-
- stateObject := self.stateObjects[addr.Str()]
- if stateObject != nil {
- return stateObject
- }
-
- data := self.trie.Get(addr[:])
- if len(data) == 0 {
- return nil
- }
-
- stateObject = NewStateObjectFromBytes(addr, []byte(data), self.db)
- self.SetStateObject(stateObject)
-
- return stateObject
-}
-
-func (self *StateDB) SetStateObject(object *StateObject) {
- self.stateObjects[object.Address().Str()] = object
-}
-
-// Retrieve a state object or create a new state object if nil
-func (self *StateDB) GetOrNewStateObject(addr common.Address) *StateObject {
- stateObject := self.GetStateObject(addr)
- if stateObject == nil {
- stateObject = self.NewStateObject(addr)
- }
-
- return stateObject
-}
-
-// Create a state object whether it exist in the trie or not
-func (self *StateDB) NewStateObject(addr common.Address) *StateObject {
- //addr = common.Address(addr)
-
- statelogger.Debugf("(+) %x\n", addr)
-
- stateObject := NewStateObject(addr, self.db)
- self.stateObjects[addr.Str()] = stateObject
-
- return stateObject
-}
-
-// Deprecated
-func (self *StateDB) GetAccount(addr common.Address) *StateObject {
- return self.GetOrNewStateObject(addr)
-}
-
-//
-// Setting, copying of the state methods
-//
-
-func (s *StateDB) Cmp(other *StateDB) bool {
- return bytes.Equal(s.trie.Root(), other.trie.Root())
-}
-
-func (self *StateDB) Copy() *StateDB {
- state := New(common.Hash{}, self.db)
- state.trie = self.trie.Copy()
- for k, stateObject := range self.stateObjects {
- state.stateObjects[k] = stateObject.Copy()
- }
-
- for addr, refund := range self.refund {
- state.refund[addr] = new(big.Int).Set(refund)
- }
-
- logs := make(Logs, len(self.logs))
- copy(logs, self.logs)
- state.logs = logs
-
- return state
-}
-
-func (self *StateDB) Set(state *StateDB) {
- self.trie = state.trie
- self.stateObjects = state.stateObjects
-
- self.refund = state.refund
- self.logs = state.logs
-}
-
-func (s *StateDB) Root() common.Hash {
- return common.BytesToHash(s.trie.Root())
-}
-
-func (s *StateDB) Trie() *trie.SecureTrie {
- return s.trie
-}
-
-// Resets the trie and all siblings
-func (s *StateDB) Reset() {
- s.trie.Reset()
-
- // Reset all nested states
- for _, stateObject := range s.stateObjects {
- if stateObject.State == nil {
- continue
- }
-
- stateObject.Reset()
- }
-
- s.Empty()
-}
-
-// Syncs the trie and all siblings
-func (s *StateDB) Sync() {
- // Sync all nested states
- for _, stateObject := range s.stateObjects {
- if stateObject.State == nil {
- continue
- }
-
- stateObject.State.Sync()
- }
-
- s.trie.Commit()
-
- s.Empty()
-}
-
-func (self *StateDB) Empty() {
- self.stateObjects = make(map[string]*StateObject)
- self.refund = make(map[string]*big.Int)
-}
-
-func (self *StateDB) Refunds() map[string]*big.Int {
- return self.refund
-}
-
-func (self *StateDB) Update(gasUsed *big.Int) {
- self.refund = make(map[string]*big.Int)
-
- for _, stateObject := range self.stateObjects {
- if stateObject.dirty {
- if stateObject.remove {
- self.DeleteStateObject(stateObject)
- } else {
- stateObject.Sync()
-
- self.UpdateStateObject(stateObject)
- }
- stateObject.dirty = false
- }
- }
-}
-
-// Debug stuff
-func (self *StateDB) CreateOutputForDiff() {
- for _, stateObject := range self.stateObjects {
- stateObject.CreateOutputForDiff()
- }
-}