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@ -124,115 +124,115 @@ func New(root common.Hash, db Database) (*StateDB, error) { |
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} |
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// setError remembers the first non-nil error it is called with.
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func (self *StateDB) setError(err error) { |
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if self.dbErr == nil { |
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self.dbErr = err |
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func (s *StateDB) setError(err error) { |
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if s.dbErr == nil { |
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s.dbErr = err |
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} |
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} |
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func (self *StateDB) Error() error { |
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return self.dbErr |
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func (s *StateDB) Error() error { |
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return s.dbErr |
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} |
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// Reset clears out all ephemeral state objects from the state db, but keeps
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// the underlying state trie to avoid reloading data for the next operations.
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func (self *StateDB) Reset(root common.Hash) error { |
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tr, err := self.db.OpenTrie(root) |
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func (s *StateDB) Reset(root common.Hash) error { |
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tr, err := s.db.OpenTrie(root) |
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if err != nil { |
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return err |
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} |
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self.trie = tr |
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self.stateObjects = make(map[common.Address]*stateObject) |
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self.stateObjectsPending = make(map[common.Address]struct{}) |
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self.stateObjectsDirty = make(map[common.Address]struct{}) |
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self.thash = common.Hash{} |
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self.bhash = common.Hash{} |
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self.txIndex = 0 |
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self.logs = make(map[common.Hash][]*types.Log) |
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self.logSize = 0 |
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self.preimages = make(map[common.Hash][]byte) |
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self.clearJournalAndRefund() |
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s.trie = tr |
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s.stateObjects = make(map[common.Address]*stateObject) |
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s.stateObjectsPending = make(map[common.Address]struct{}) |
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s.stateObjectsDirty = make(map[common.Address]struct{}) |
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s.thash = common.Hash{} |
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s.bhash = common.Hash{} |
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s.txIndex = 0 |
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s.logs = make(map[common.Hash][]*types.Log) |
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s.logSize = 0 |
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s.preimages = make(map[common.Hash][]byte) |
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s.clearJournalAndRefund() |
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return nil |
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} |
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func (self *StateDB) AddLog(log *types.Log) { |
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self.journal.append(addLogChange{txhash: self.thash}) |
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func (s *StateDB) AddLog(log *types.Log) { |
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s.journal.append(addLogChange{txhash: s.thash}) |
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log.TxHash = self.thash |
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log.BlockHash = self.bhash |
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log.TxIndex = uint(self.txIndex) |
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log.Index = self.logSize |
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self.logs[self.thash] = append(self.logs[self.thash], log) |
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self.logSize++ |
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log.TxHash = s.thash |
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log.BlockHash = s.bhash |
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log.TxIndex = uint(s.txIndex) |
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log.Index = s.logSize |
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s.logs[s.thash] = append(s.logs[s.thash], log) |
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s.logSize++ |
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} |
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func (self *StateDB) GetLogs(hash common.Hash) []*types.Log { |
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return self.logs[hash] |
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func (s *StateDB) GetLogs(hash common.Hash) []*types.Log { |
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return s.logs[hash] |
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} |
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func (self *StateDB) Logs() []*types.Log { |
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func (s *StateDB) Logs() []*types.Log { |
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var logs []*types.Log |
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for _, lgs := range self.logs { |
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for _, lgs := range s.logs { |
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logs = append(logs, lgs...) |
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} |
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return logs |
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} |
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// AddPreimage records a SHA3 preimage seen by the VM.
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func (self *StateDB) AddPreimage(hash common.Hash, preimage []byte) { |
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if _, ok := self.preimages[hash]; !ok { |
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self.journal.append(addPreimageChange{hash: hash}) |
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func (s *StateDB) AddPreimage(hash common.Hash, preimage []byte) { |
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if _, ok := s.preimages[hash]; !ok { |
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s.journal.append(addPreimageChange{hash: hash}) |
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pi := make([]byte, len(preimage)) |
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copy(pi, preimage) |
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self.preimages[hash] = pi |
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s.preimages[hash] = pi |
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} |
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} |
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// Preimages returns a list of SHA3 preimages that have been submitted.
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func (self *StateDB) Preimages() map[common.Hash][]byte { |
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return self.preimages |
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func (s *StateDB) Preimages() map[common.Hash][]byte { |
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return s.preimages |
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} |
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// AddRefund adds gas to the refund counter
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func (self *StateDB) AddRefund(gas uint64) { |
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self.journal.append(refundChange{prev: self.refund}) |
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self.refund += gas |
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func (s *StateDB) AddRefund(gas uint64) { |
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s.journal.append(refundChange{prev: s.refund}) |
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s.refund += gas |
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} |
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// SubRefund removes gas from the refund counter.
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// This method will panic if the refund counter goes below zero
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func (self *StateDB) SubRefund(gas uint64) { |
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self.journal.append(refundChange{prev: self.refund}) |
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if gas > self.refund { |
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func (s *StateDB) SubRefund(gas uint64) { |
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s.journal.append(refundChange{prev: s.refund}) |
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if gas > s.refund { |
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panic("Refund counter below zero") |
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} |
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self.refund -= gas |
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s.refund -= gas |
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} |
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// Exist reports whether the given account address exists in the state.
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// Notably this also returns true for suicided accounts.
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func (self *StateDB) Exist(addr common.Address) bool { |
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return self.getStateObject(addr) != nil |
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func (s *StateDB) Exist(addr common.Address) bool { |
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return s.getStateObject(addr) != nil |
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} |
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// Empty returns whether the state object is either non-existent
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// or empty according to the EIP161 specification (balance = nonce = code = 0)
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func (self *StateDB) Empty(addr common.Address) bool { |
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so := self.getStateObject(addr) |
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func (s *StateDB) Empty(addr common.Address) bool { |
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so := s.getStateObject(addr) |
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return so == nil || so.empty() |
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} |
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// Retrieve the balance from the given address or 0 if object not found
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func (self *StateDB) GetBalance(addr common.Address) *big.Int { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetBalance(addr common.Address) *big.Int { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.Balance() |
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} |
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return common.Big0 |
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} |
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func (self *StateDB) GetNonce(addr common.Address) uint64 { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetNonce(addr common.Address) uint64 { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.Nonce() |
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} |
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@ -241,40 +241,40 @@ func (self *StateDB) GetNonce(addr common.Address) uint64 { |
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} |
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// TxIndex returns the current transaction index set by Prepare.
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func (self *StateDB) TxIndex() int { |
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return self.txIndex |
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func (s *StateDB) TxIndex() int { |
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return s.txIndex |
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} |
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// BlockHash returns the current block hash set by Prepare.
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func (self *StateDB) BlockHash() common.Hash { |
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return self.bhash |
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func (s *StateDB) BlockHash() common.Hash { |
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return s.bhash |
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} |
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func (self *StateDB) GetCode(addr common.Address) []byte { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetCode(addr common.Address) []byte { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.Code(self.db) |
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return stateObject.Code(s.db) |
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} |
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return nil |
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} |
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func (self *StateDB) GetCodeSize(addr common.Address) int { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetCodeSize(addr common.Address) int { |
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stateObject := s.getStateObject(addr) |
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if stateObject == nil { |
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return 0 |
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} |
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if stateObject.code != nil { |
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return len(stateObject.code) |
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} |
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size, err := self.db.ContractCodeSize(stateObject.addrHash, common.BytesToHash(stateObject.CodeHash())) |
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size, err := s.db.ContractCodeSize(stateObject.addrHash, common.BytesToHash(stateObject.CodeHash())) |
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if err != nil { |
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self.setError(err) |
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s.setError(err) |
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} |
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return size |
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} |
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func (self *StateDB) GetCodeHash(addr common.Address) common.Hash { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetCodeHash(addr common.Address) common.Hash { |
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stateObject := s.getStateObject(addr) |
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if stateObject == nil { |
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return common.Hash{} |
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} |
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@ -282,25 +282,25 @@ func (self *StateDB) GetCodeHash(addr common.Address) common.Hash { |
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} |
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// GetState retrieves a value from the given account's storage trie.
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func (self *StateDB) GetState(addr common.Address, hash common.Hash) common.Hash { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetState(addr common.Address, hash common.Hash) common.Hash { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.GetState(self.db, hash) |
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return stateObject.GetState(s.db, hash) |
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} |
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return common.Hash{} |
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} |
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// GetProof returns the MerkleProof for a given Account
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func (self *StateDB) GetProof(a common.Address) ([][]byte, error) { |
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func (s *StateDB) GetProof(a common.Address) ([][]byte, error) { |
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var proof proofList |
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err := self.trie.Prove(crypto.Keccak256(a.Bytes()), 0, &proof) |
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err := s.trie.Prove(crypto.Keccak256(a.Bytes()), 0, &proof) |
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return [][]byte(proof), err |
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} |
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// GetProof returns the StorageProof for given key
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func (self *StateDB) GetStorageProof(a common.Address, key common.Hash) ([][]byte, error) { |
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func (s *StateDB) GetStorageProof(a common.Address, key common.Hash) ([][]byte, error) { |
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var proof proofList |
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trie := self.StorageTrie(a) |
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trie := s.StorageTrie(a) |
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if trie == nil { |
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return proof, errors.New("storage trie for requested address does not exist") |
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} |
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@ -309,32 +309,32 @@ func (self *StateDB) GetStorageProof(a common.Address, key common.Hash) ([][]byt |
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} |
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// GetCommittedState retrieves a value from the given account's committed storage trie.
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func (self *StateDB) GetCommittedState(addr common.Address, hash common.Hash) common.Hash { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) GetCommittedState(addr common.Address, hash common.Hash) common.Hash { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.GetCommittedState(self.db, hash) |
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return stateObject.GetCommittedState(s.db, hash) |
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} |
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return common.Hash{} |
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} |
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// Database retrieves the low level database supporting the lower level trie ops.
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func (self *StateDB) Database() Database { |
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return self.db |
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func (s *StateDB) Database() Database { |
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return s.db |
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} |
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// StorageTrie returns the storage trie of an account.
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// The return value is a copy and is nil for non-existent accounts.
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func (self *StateDB) StorageTrie(addr common.Address) Trie { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) StorageTrie(addr common.Address) Trie { |
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stateObject := s.getStateObject(addr) |
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if stateObject == nil { |
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return nil |
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} |
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cpy := stateObject.deepCopy(self) |
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return cpy.updateTrie(self.db) |
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cpy := stateObject.deepCopy(s) |
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return cpy.updateTrie(s.db) |
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} |
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func (self *StateDB) HasSuicided(addr common.Address) bool { |
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stateObject := self.getStateObject(addr) |
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func (s *StateDB) HasSuicided(addr common.Address) bool { |
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stateObject := s.getStateObject(addr) |
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if stateObject != nil { |
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return stateObject.suicided |
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} |
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@ -346,53 +346,53 @@ func (self *StateDB) HasSuicided(addr common.Address) bool { |
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*/ |
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// AddBalance adds amount to the account associated with addr.
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func (self *StateDB) AddBalance(addr common.Address, amount *big.Int) { |
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stateObject := self.GetOrNewStateObject(addr) |
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func (s *StateDB) AddBalance(addr common.Address, amount *big.Int) { |
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stateObject := s.GetOrNewStateObject(addr) |
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if stateObject != nil { |
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stateObject.AddBalance(amount) |
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} |
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} |
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// SubBalance subtracts amount from the account associated with addr.
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func (self *StateDB) SubBalance(addr common.Address, amount *big.Int) { |
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stateObject := self.GetOrNewStateObject(addr) |
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func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) { |
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stateObject := s.GetOrNewStateObject(addr) |
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if stateObject != nil { |
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stateObject.SubBalance(amount) |
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} |
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} |
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func (self *StateDB) SetBalance(addr common.Address, amount *big.Int) { |
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stateObject := self.GetOrNewStateObject(addr) |
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func (s *StateDB) SetBalance(addr common.Address, amount *big.Int) { |
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stateObject := s.GetOrNewStateObject(addr) |
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if stateObject != nil { |
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stateObject.SetBalance(amount) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
func (self *StateDB) SetNonce(addr common.Address, nonce uint64) { |
|
|
|
|
stateObject := self.GetOrNewStateObject(addr) |
|
|
|
|
func (s *StateDB) SetNonce(addr common.Address, nonce uint64) { |
|
|
|
|
stateObject := s.GetOrNewStateObject(addr) |
|
|
|
|
if stateObject != nil { |
|
|
|
|
stateObject.SetNonce(nonce) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
func (self *StateDB) SetCode(addr common.Address, code []byte) { |
|
|
|
|
stateObject := self.GetOrNewStateObject(addr) |
|
|
|
|
func (s *StateDB) SetCode(addr common.Address, code []byte) { |
|
|
|
|
stateObject := s.GetOrNewStateObject(addr) |
|
|
|
|
if stateObject != nil { |
|
|
|
|
stateObject.SetCode(crypto.Keccak256Hash(code), code) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
func (self *StateDB) SetState(addr common.Address, key, value common.Hash) { |
|
|
|
|
stateObject := self.GetOrNewStateObject(addr) |
|
|
|
|
func (s *StateDB) SetState(addr common.Address, key, value common.Hash) { |
|
|
|
|
stateObject := s.GetOrNewStateObject(addr) |
|
|
|
|
if stateObject != nil { |
|
|
|
|
stateObject.SetState(self.db, key, value) |
|
|
|
|
stateObject.SetState(s.db, key, value) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// SetStorage replaces the entire storage for the specified account with given
|
|
|
|
|
// storage. This function should only be used for debugging.
|
|
|
|
|
func (self *StateDB) SetStorage(addr common.Address, storage map[common.Hash]common.Hash) { |
|
|
|
|
stateObject := self.GetOrNewStateObject(addr) |
|
|
|
|
func (s *StateDB) SetStorage(addr common.Address, storage map[common.Hash]common.Hash) { |
|
|
|
|
stateObject := s.GetOrNewStateObject(addr) |
|
|
|
|
if stateObject != nil { |
|
|
|
|
stateObject.SetStorage(storage) |
|
|
|
|
} |
|
|
|
|
@ -403,12 +403,12 @@ func (self *StateDB) SetStorage(addr common.Address, storage map[common.Hash]com |
|
|
|
|
//
|
|
|
|
|
// The account's state object is still available until the state is committed,
|
|
|
|
|
// getStateObject will return a non-nil account after Suicide.
|
|
|
|
|
func (self *StateDB) Suicide(addr common.Address) bool { |
|
|
|
|
stateObject := self.getStateObject(addr) |
|
|
|
|
func (s *StateDB) Suicide(addr common.Address) bool { |
|
|
|
|
stateObject := s.getStateObject(addr) |
|
|
|
|
if stateObject == nil { |
|
|
|
|
return false |
|
|
|
|
} |
|
|
|
|
self.journal.append(suicideChange{ |
|
|
|
|
s.journal.append(suicideChange{ |
|
|
|
|
account: &addr, |
|
|
|
|
prev: stateObject.suicided, |
|
|
|
|
prevbalance: new(big.Int).Set(stateObject.Balance()), |
|
|
|
|
@ -462,7 +462,7 @@ func (s *StateDB) getStateObject(addr common.Address) *stateObject { |
|
|
|
|
|
|
|
|
|
// getDeletedStateObject is similar to getStateObject, but instead of returning
|
|
|
|
|
// nil for a deleted state object, it returns the actual object with the deleted
|
|
|
|
|
// flag set. This is needed by the state journal to revert to the correct self-
|
|
|
|
|
// flag set. This is needed by the state journal to revert to the correct s-
|
|
|
|
|
// destructed object instead of wiping all knowledge about the state object.
|
|
|
|
|
func (s *StateDB) getDeletedStateObject(addr common.Address) *stateObject { |
|
|
|
|
// Prefer live objects if any is available
|
|
|
|
|
@ -490,32 +490,32 @@ func (s *StateDB) getDeletedStateObject(addr common.Address) *stateObject { |
|
|
|
|
return obj |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
func (self *StateDB) setStateObject(object *stateObject) { |
|
|
|
|
self.stateObjects[object.Address()] = object |
|
|
|
|
func (s *StateDB) setStateObject(object *stateObject) { |
|
|
|
|
s.stateObjects[object.Address()] = 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) |
|
|
|
|
func (s *StateDB) GetOrNewStateObject(addr common.Address) *stateObject { |
|
|
|
|
stateObject := s.getStateObject(addr) |
|
|
|
|
if stateObject == nil { |
|
|
|
|
stateObject, _ = self.createObject(addr) |
|
|
|
|
stateObject, _ = s.createObject(addr) |
|
|
|
|
} |
|
|
|
|
return stateObject |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// createObject creates a new state object. If there is an existing account with
|
|
|
|
|
// the given address, it is overwritten and returned as the second return value.
|
|
|
|
|
func (self *StateDB) createObject(addr common.Address) (newobj, prev *stateObject) { |
|
|
|
|
prev = self.getDeletedStateObject(addr) // Note, prev might have been deleted, we need that!
|
|
|
|
|
func (s *StateDB) createObject(addr common.Address) (newobj, prev *stateObject) { |
|
|
|
|
prev = s.getDeletedStateObject(addr) // Note, prev might have been deleted, we need that!
|
|
|
|
|
|
|
|
|
|
newobj = newObject(self, addr, Account{}) |
|
|
|
|
newobj = newObject(s, addr, Account{}) |
|
|
|
|
newobj.setNonce(0) // sets the object to dirty
|
|
|
|
|
if prev == nil { |
|
|
|
|
self.journal.append(createObjectChange{account: &addr}) |
|
|
|
|
s.journal.append(createObjectChange{account: &addr}) |
|
|
|
|
} else { |
|
|
|
|
self.journal.append(resetObjectChange{prev: prev}) |
|
|
|
|
s.journal.append(resetObjectChange{prev: prev}) |
|
|
|
|
} |
|
|
|
|
self.setStateObject(newobj) |
|
|
|
|
s.setStateObject(newobj) |
|
|
|
|
return newobj, prev |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@ -529,8 +529,8 @@ func (self *StateDB) createObject(addr common.Address) (newobj, prev *stateObjec |
|
|
|
|
// 2. tx_create(sha(account ++ nonce)) (note that this gets the address of 1)
|
|
|
|
|
//
|
|
|
|
|
// Carrying over the balance ensures that Ether doesn't disappear.
|
|
|
|
|
func (self *StateDB) CreateAccount(addr common.Address) { |
|
|
|
|
newObj, prev := self.createObject(addr) |
|
|
|
|
func (s *StateDB) CreateAccount(addr common.Address) { |
|
|
|
|
newObj, prev := s.createObject(addr) |
|
|
|
|
if prev != nil { |
|
|
|
|
newObj.setBalance(prev.data.Balance) |
|
|
|
|
} |
|
|
|
|
@ -567,27 +567,27 @@ func (db *StateDB) ForEachStorage(addr common.Address, cb func(key, value common |
|
|
|
|
|
|
|
|
|
// Copy creates a deep, independent copy of the state.
|
|
|
|
|
// Snapshots of the copied state cannot be applied to the copy.
|
|
|
|
|
func (self *StateDB) Copy() *StateDB { |
|
|
|
|
func (s *StateDB) Copy() *StateDB { |
|
|
|
|
// Copy all the basic fields, initialize the memory ones
|
|
|
|
|
state := &StateDB{ |
|
|
|
|
db: self.db, |
|
|
|
|
trie: self.db.CopyTrie(self.trie), |
|
|
|
|
stateObjects: make(map[common.Address]*stateObject, len(self.journal.dirties)), |
|
|
|
|
stateObjectsPending: make(map[common.Address]struct{}, len(self.stateObjectsPending)), |
|
|
|
|
stateObjectsDirty: make(map[common.Address]struct{}, len(self.journal.dirties)), |
|
|
|
|
refund: self.refund, |
|
|
|
|
logs: make(map[common.Hash][]*types.Log, len(self.logs)), |
|
|
|
|
logSize: self.logSize, |
|
|
|
|
preimages: make(map[common.Hash][]byte, len(self.preimages)), |
|
|
|
|
db: s.db, |
|
|
|
|
trie: s.db.CopyTrie(s.trie), |
|
|
|
|
stateObjects: make(map[common.Address]*stateObject, len(s.journal.dirties)), |
|
|
|
|
stateObjectsPending: make(map[common.Address]struct{}, len(s.stateObjectsPending)), |
|
|
|
|
stateObjectsDirty: make(map[common.Address]struct{}, len(s.journal.dirties)), |
|
|
|
|
refund: s.refund, |
|
|
|
|
logs: make(map[common.Hash][]*types.Log, len(s.logs)), |
|
|
|
|
logSize: s.logSize, |
|
|
|
|
preimages: make(map[common.Hash][]byte, len(s.preimages)), |
|
|
|
|
journal: newJournal(), |
|
|
|
|
} |
|
|
|
|
// Copy the dirty states, logs, and preimages
|
|
|
|
|
for addr := range self.journal.dirties { |
|
|
|
|
for addr := range s.journal.dirties { |
|
|
|
|
// As documented [here](https://github.com/ethereum/go-ethereum/pull/16485#issuecomment-380438527),
|
|
|
|
|
// and in the Finalise-method, there is a case where an object is in the journal but not
|
|
|
|
|
// in the stateObjects: OOG after touch on ripeMD prior to Byzantium. Thus, we need to check for
|
|
|
|
|
// nil
|
|
|
|
|
if object, exist := self.stateObjects[addr]; exist { |
|
|
|
|
if object, exist := s.stateObjects[addr]; exist { |
|
|
|
|
// Even though the original object is dirty, we are not copying the journal,
|
|
|
|
|
// so we need to make sure that anyside effect the journal would have caused
|
|
|
|
|
// during a commit (or similar op) is already applied to the copy.
|
|
|
|
|
@ -600,19 +600,19 @@ func (self *StateDB) Copy() *StateDB { |
|
|
|
|
// Above, we don't copy the actual journal. This means that if the copy is copied, the
|
|
|
|
|
// loop above will be a no-op, since the copy's journal is empty.
|
|
|
|
|
// Thus, here we iterate over stateObjects, to enable copies of copies
|
|
|
|
|
for addr := range self.stateObjectsPending { |
|
|
|
|
for addr := range s.stateObjectsPending { |
|
|
|
|
if _, exist := state.stateObjects[addr]; !exist { |
|
|
|
|
state.stateObjects[addr] = self.stateObjects[addr].deepCopy(state) |
|
|
|
|
state.stateObjects[addr] = s.stateObjects[addr].deepCopy(state) |
|
|
|
|
} |
|
|
|
|
state.stateObjectsPending[addr] = struct{}{} |
|
|
|
|
} |
|
|
|
|
for addr := range self.stateObjectsDirty { |
|
|
|
|
for addr := range s.stateObjectsDirty { |
|
|
|
|
if _, exist := state.stateObjects[addr]; !exist { |
|
|
|
|
state.stateObjects[addr] = self.stateObjects[addr].deepCopy(state) |
|
|
|
|
state.stateObjects[addr] = s.stateObjects[addr].deepCopy(state) |
|
|
|
|
} |
|
|
|
|
state.stateObjectsDirty[addr] = struct{}{} |
|
|
|
|
} |
|
|
|
|
for hash, logs := range self.logs { |
|
|
|
|
for hash, logs := range s.logs { |
|
|
|
|
cpy := make([]*types.Log, len(logs)) |
|
|
|
|
for i, l := range logs { |
|
|
|
|
cpy[i] = new(types.Log) |
|
|
|
|
@ -620,42 +620,42 @@ func (self *StateDB) Copy() *StateDB { |
|
|
|
|
} |
|
|
|
|
state.logs[hash] = cpy |
|
|
|
|
} |
|
|
|
|
for hash, preimage := range self.preimages { |
|
|
|
|
for hash, preimage := range s.preimages { |
|
|
|
|
state.preimages[hash] = preimage |
|
|
|
|
} |
|
|
|
|
return state |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// Snapshot returns an identifier for the current revision of the state.
|
|
|
|
|
func (self *StateDB) Snapshot() int { |
|
|
|
|
id := self.nextRevisionId |
|
|
|
|
self.nextRevisionId++ |
|
|
|
|
self.validRevisions = append(self.validRevisions, revision{id, self.journal.length()}) |
|
|
|
|
func (s *StateDB) Snapshot() int { |
|
|
|
|
id := s.nextRevisionId |
|
|
|
|
s.nextRevisionId++ |
|
|
|
|
s.validRevisions = append(s.validRevisions, revision{id, s.journal.length()}) |
|
|
|
|
return id |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// RevertToSnapshot reverts all state changes made since the given revision.
|
|
|
|
|
func (self *StateDB) RevertToSnapshot(revid int) { |
|
|
|
|
func (s *StateDB) RevertToSnapshot(revid int) { |
|
|
|
|
// Find the snapshot in the stack of valid snapshots.
|
|
|
|
|
idx := sort.Search(len(self.validRevisions), func(i int) bool { |
|
|
|
|
return self.validRevisions[i].id >= revid |
|
|
|
|
idx := sort.Search(len(s.validRevisions), func(i int) bool { |
|
|
|
|
return s.validRevisions[i].id >= revid |
|
|
|
|
}) |
|
|
|
|
if idx == len(self.validRevisions) || self.validRevisions[idx].id != revid { |
|
|
|
|
if idx == len(s.validRevisions) || s.validRevisions[idx].id != revid { |
|
|
|
|
panic(fmt.Errorf("revision id %v cannot be reverted", revid)) |
|
|
|
|
} |
|
|
|
|
snapshot := self.validRevisions[idx].journalIndex |
|
|
|
|
snapshot := s.validRevisions[idx].journalIndex |
|
|
|
|
|
|
|
|
|
// Replay the journal to undo changes and remove invalidated snapshots
|
|
|
|
|
self.journal.revert(self, snapshot) |
|
|
|
|
self.validRevisions = self.validRevisions[:idx] |
|
|
|
|
s.journal.revert(s, snapshot) |
|
|
|
|
s.validRevisions = s.validRevisions[:idx] |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// GetRefund returns the current value of the refund counter.
|
|
|
|
|
func (self *StateDB) GetRefund() uint64 { |
|
|
|
|
return self.refund |
|
|
|
|
func (s *StateDB) GetRefund() uint64 { |
|
|
|
|
return s.refund |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// Finalise finalises the state by removing the self destructed objects and clears
|
|
|
|
|
// Finalise finalises the state by removing the s destructed objects and clears
|
|
|
|
|
// the journal as well as the refunds. Finalise, however, will not push any updates
|
|
|
|
|
// into the tries just yet. Only IntermediateRoot or Commit will do that.
|
|
|
|
|
func (s *StateDB) Finalise(deleteEmptyObjects bool) { |
|
|
|
|
@ -710,10 +710,10 @@ func (s *StateDB) IntermediateRoot(deleteEmptyObjects bool) common.Hash { |
|
|
|
|
|
|
|
|
|
// Prepare sets the current transaction hash and index and block hash which is
|
|
|
|
|
// used when the EVM emits new state logs.
|
|
|
|
|
func (self *StateDB) Prepare(thash, bhash common.Hash, ti int) { |
|
|
|
|
self.thash = thash |
|
|
|
|
self.bhash = bhash |
|
|
|
|
self.txIndex = ti |
|
|
|
|
func (s *StateDB) Prepare(thash, bhash common.Hash, ti int) { |
|
|
|
|
s.thash = thash |
|
|
|
|
s.bhash = bhash |
|
|
|
|
s.txIndex = ti |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
func (s *StateDB) clearJournalAndRefund() { |
|
|
|
|
|
Felix Lange
5 years ago
committed by
GitHub