mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-23 04:03:49 +00:00
997 lines
30 KiB
Go
997 lines
30 KiB
Go
// Copyright 2019 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// Package state provides a caching layer atop the Ethereum state trie.
|
|
package state
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"sort"
|
|
"sync"
|
|
|
|
"github.com/holiman/uint256"
|
|
|
|
"github.com/ledgerwatch/turbo-geth/common"
|
|
"github.com/ledgerwatch/turbo-geth/common/u256"
|
|
"github.com/ledgerwatch/turbo-geth/core/types"
|
|
"github.com/ledgerwatch/turbo-geth/core/types/accounts"
|
|
"github.com/ledgerwatch/turbo-geth/crypto"
|
|
"github.com/ledgerwatch/turbo-geth/log"
|
|
"github.com/ledgerwatch/turbo-geth/params"
|
|
"github.com/ledgerwatch/turbo-geth/turbo/trie"
|
|
)
|
|
|
|
type revision struct {
|
|
id int
|
|
journalIndex int
|
|
}
|
|
|
|
var (
|
|
// emptyState is the known hash of an empty state trie entry.
|
|
emptyState = crypto.Keccak256Hash(nil)
|
|
|
|
// emptyCode is the known hash of the empty EVM bytecode.
|
|
// DESCRIBED: docs/programmers_guide/guide.md#code-hash
|
|
emptyCode = crypto.Keccak256Hash(nil)
|
|
)
|
|
|
|
type proofList [][]byte
|
|
|
|
func (n *proofList) Put(key []byte, value []byte) error {
|
|
*n = append(*n, value)
|
|
return nil
|
|
}
|
|
|
|
type StateTracer interface {
|
|
CaptureAccountRead(account common.Address) error
|
|
CaptureAccountWrite(account common.Address) error
|
|
}
|
|
|
|
// IntraBlockState is responsible for caching and managing state changes
|
|
// that occur during block's execution.
|
|
type IntraBlockState struct {
|
|
sync.RWMutex
|
|
stateReader StateReader
|
|
|
|
// This map holds 'live' objects, which will get modified while processing a state transition.
|
|
stateObjects map[common.Address]*stateObject
|
|
stateObjectsDirty map[common.Address]struct{}
|
|
|
|
nilAccounts map[common.Address]struct{} // Remember non-existent account to avoid reading them again
|
|
|
|
// DB error.
|
|
// State objects are used by the consensus core and VM which are
|
|
// unable to deal with database-level errors. Any error that occurs
|
|
// during a database read is memoized here and will eventually be returned
|
|
// by IntraBlockState.Commit.
|
|
dbErr error
|
|
|
|
// The refund counter, also used by state transitioning.
|
|
refund uint64
|
|
|
|
thash, bhash common.Hash
|
|
txIndex int
|
|
logs map[common.Hash][]*types.Log
|
|
logSize uint
|
|
|
|
preimages map[common.Hash][]byte
|
|
|
|
// Journal of state modifications. This is the backbone of
|
|
// Snapshot and RevertToSnapshot.
|
|
journal *journal
|
|
validRevisions []revision
|
|
nextRevisionID int
|
|
tracer StateTracer
|
|
trace bool
|
|
accessList *accessList
|
|
}
|
|
|
|
// Create a new state from a given trie
|
|
func New(stateReader StateReader) *IntraBlockState {
|
|
return &IntraBlockState{
|
|
stateReader: stateReader,
|
|
stateObjects: make(map[common.Address]*stateObject),
|
|
stateObjectsDirty: make(map[common.Address]struct{}),
|
|
nilAccounts: make(map[common.Address]struct{}),
|
|
logs: make(map[common.Hash][]*types.Log),
|
|
preimages: make(map[common.Hash][]byte),
|
|
journal: newJournal(),
|
|
accessList: newAccessList(),
|
|
}
|
|
}
|
|
|
|
// Copy creates a deep, independent copy of the state.
|
|
// Snapshots of the copied state cannot be applied to the copy.
|
|
func (sdb *IntraBlockState) Copy() *IntraBlockState {
|
|
// Copy all the basic fields, initialize the memory ones
|
|
ibs := &IntraBlockState{
|
|
stateReader: sdb.stateReader,
|
|
stateObjects: make(map[common.Address]*stateObject, len(sdb.journal.dirties)),
|
|
stateObjectsDirty: make(map[common.Address]struct{}, len(sdb.journal.dirties)),
|
|
nilAccounts: make(map[common.Address]struct{}),
|
|
refund: sdb.refund,
|
|
logs: make(map[common.Hash][]*types.Log, len(sdb.logs)),
|
|
logSize: sdb.logSize,
|
|
preimages: make(map[common.Hash][]byte, len(sdb.preimages)),
|
|
journal: newJournal(),
|
|
}
|
|
// Copy the dirty states, logs, and preimages
|
|
for addr := range sdb.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 := sdb.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.
|
|
ibs.stateObjects[addr] = object.deepCopy(ibs)
|
|
ibs.stateObjectsDirty[addr] = struct{}{} // Mark the copy dirty to force internal (code/state) commits
|
|
}
|
|
}
|
|
// 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 sdb.stateObjectsDirty {
|
|
if _, exist := ibs.stateObjects[addr]; !exist {
|
|
ibs.stateObjects[addr] = sdb.stateObjects[addr].deepCopy(ibs)
|
|
}
|
|
ibs.stateObjectsDirty[addr] = struct{}{}
|
|
}
|
|
for hash, logs := range sdb.logs {
|
|
cpy := make([]*types.Log, len(logs))
|
|
for i, l := range logs {
|
|
cpy[i] = new(types.Log)
|
|
*cpy[i] = *l
|
|
}
|
|
ibs.logs[hash] = cpy
|
|
}
|
|
for hash, preimage := range sdb.preimages {
|
|
ibs.preimages[hash] = preimage
|
|
}
|
|
// comment from https://github.com/ethereum/go-ethereum/commit/6487c002f6b47e08cb9814f16712c6789b313a97#diff-c3757dc9e9d868f63bc84a0cc67159c1d5c22cc5d8c9468757098f0492e0658cR705
|
|
// Do we need to copy the access list? In practice: No. At the start of a
|
|
// transaction, the access list is empty. In practice, we only ever copy state
|
|
// _between_ transactions/blocks, never in the middle of a transaction.
|
|
// However, it doesn't cost us much to copy an empty list, so we do it anyway
|
|
// to not blow up if we ever decide copy it in the middle of a transaction
|
|
ibs.accessList = sdb.accessList.Copy()
|
|
return ibs
|
|
}
|
|
|
|
func (sdb *IntraBlockState) SetTracer(tracer StateTracer) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
sdb.tracer = tracer
|
|
}
|
|
|
|
func (sdb *IntraBlockState) SetTrace(trace bool) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
sdb.trace = trace
|
|
}
|
|
|
|
// setError remembers the first non-nil error it is called with.
|
|
func (sdb *IntraBlockState) setError(err error) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
sdb.setErrorUnsafe(err)
|
|
}
|
|
|
|
// setErrorUnsafe sets error but should be called in medhods that already have locks
|
|
func (sdb *IntraBlockState) setErrorUnsafe(err error) {
|
|
if sdb.dbErr == nil {
|
|
sdb.dbErr = err
|
|
}
|
|
}
|
|
|
|
func (sdb *IntraBlockState) Error() error {
|
|
sdb.RLock()
|
|
defer sdb.RUnlock()
|
|
return sdb.dbErr
|
|
}
|
|
|
|
// Reset clears out all ephemeral state objects from the state db, but keeps
|
|
// the underlying state trie to avoid reloading data for the next operations.
|
|
func (sdb *IntraBlockState) Reset() error {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
sdb.stateObjects = make(map[common.Address]*stateObject)
|
|
sdb.stateObjectsDirty = make(map[common.Address]struct{})
|
|
sdb.thash = common.Hash{}
|
|
sdb.bhash = common.Hash{}
|
|
sdb.txIndex = 0
|
|
sdb.logs = make(map[common.Hash][]*types.Log)
|
|
sdb.logSize = 0
|
|
sdb.preimages = make(map[common.Hash][]byte)
|
|
sdb.clearJournalAndRefund()
|
|
sdb.accessList = newAccessList()
|
|
return nil
|
|
}
|
|
|
|
func (sdb *IntraBlockState) AddLog(log *types.Log) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
sdb.journal.append(addLogChange{txhash: sdb.thash})
|
|
|
|
log.TxHash = sdb.thash
|
|
log.BlockHash = sdb.bhash
|
|
log.TxIndex = uint(sdb.txIndex)
|
|
log.Index = sdb.logSize
|
|
sdb.logs[sdb.thash] = append(sdb.logs[sdb.thash], log)
|
|
sdb.logSize++
|
|
}
|
|
|
|
func (sdb *IntraBlockState) GetLogs(hash common.Hash) []*types.Log {
|
|
sdb.RLock()
|
|
defer sdb.RUnlock()
|
|
|
|
return sdb.logs[hash]
|
|
}
|
|
|
|
func (sdb *IntraBlockState) Logs() []*types.Log {
|
|
sdb.RLock()
|
|
defer sdb.RUnlock()
|
|
var logs []*types.Log
|
|
for _, lgs := range sdb.logs {
|
|
logs = append(logs, lgs...)
|
|
}
|
|
return logs
|
|
}
|
|
|
|
// AddPreimage records a SHA3 preimage seen by the VM.
|
|
func (sdb *IntraBlockState) AddPreimage(hash common.Hash, preimage []byte) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
if _, ok := sdb.preimages[hash]; !ok {
|
|
sdb.journal.append(addPreimageChange{hash: hash})
|
|
pi := make([]byte, len(preimage))
|
|
copy(pi, preimage)
|
|
sdb.preimages[hash] = pi
|
|
}
|
|
}
|
|
|
|
// Preimages returns a list of SHA3 preimages that have been submitted.
|
|
func (sdb *IntraBlockState) Preimages() map[common.Hash][]byte {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
return sdb.preimages
|
|
}
|
|
|
|
// AddRefund adds gas to the refund counter
|
|
func (sdb *IntraBlockState) AddRefund(gas uint64) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
sdb.journal.append(refundChange{prev: sdb.refund})
|
|
sdb.refund += gas
|
|
}
|
|
|
|
// SubRefund removes gas from the refund counter.
|
|
// This method will panic if the refund counter goes below zero
|
|
func (sdb *IntraBlockState) SubRefund(gas uint64) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
sdb.journal.append(refundChange{prev: sdb.refund})
|
|
if gas > sdb.refund {
|
|
panic("Refund counter below zero")
|
|
}
|
|
sdb.refund -= gas
|
|
}
|
|
|
|
// Exist reports whether the given account address exists in the state.
|
|
// Notably this also returns true for suicided accounts.
|
|
func (sdb *IntraBlockState) Exist(addr common.Address) bool {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
s := sdb.getStateObject(addr)
|
|
return s != nil && !s.deleted
|
|
}
|
|
|
|
// Empty returns whether the state object is either non-existent
|
|
// or empty according to the EIP161 specification (balance = nonce = code = 0)
|
|
func (sdb *IntraBlockState) Empty(addr common.Address) bool {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
so := sdb.getStateObject(addr)
|
|
return so == nil || so.deleted || so.empty()
|
|
}
|
|
|
|
// GetBalance retrieves the balance from the given address or 0 if object not found
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetBalance(addr common.Address) *uint256.Int {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil && !stateObject.deleted {
|
|
return stateObject.Balance()
|
|
}
|
|
return u256.Num0
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetNonce(addr common.Address) uint64 {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil && !stateObject.deleted {
|
|
return stateObject.Nonce()
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
// TxIndex returns the current transaction index set by Prepare.
|
|
func (sdb *IntraBlockState) TxIndex() int {
|
|
return sdb.txIndex
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetCode(addr common.Address) []byte {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil && !stateObject.deleted {
|
|
if sdb.trace {
|
|
fmt.Printf("GetCode %x, returned %d\n", addr, len(stateObject.Code()))
|
|
}
|
|
return stateObject.Code()
|
|
}
|
|
if sdb.trace {
|
|
fmt.Printf("GetCode %x, returned nil\n", addr)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetCodeSize(addr common.Address) int {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject == nil || stateObject.deleted {
|
|
return 0
|
|
}
|
|
if stateObject.code != nil {
|
|
return len(stateObject.code)
|
|
}
|
|
len, err := sdb.stateReader.ReadAccountCodeSize(addr, stateObject.data.Incarnation, common.BytesToHash(stateObject.CodeHash()))
|
|
if err != nil {
|
|
sdb.setErrorUnsafe(err)
|
|
}
|
|
return len
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetCodeHash(addr common.Address) common.Hash {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject == nil || stateObject.deleted {
|
|
return common.Hash{}
|
|
}
|
|
return common.BytesToHash(stateObject.CodeHash())
|
|
}
|
|
|
|
// GetState retrieves a value from the given account's storage trie.
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetState(addr common.Address, key *common.Hash, value *uint256.Int) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil && !stateObject.deleted {
|
|
stateObject.GetState(key, value)
|
|
} else {
|
|
value.Clear()
|
|
}
|
|
}
|
|
|
|
// GetProof returns the Merkle proof for a given account
|
|
func (sdb *IntraBlockState) GetProof(a common.Address) ([][]byte, error) {
|
|
//sdb.Lock()
|
|
//defer sdb.Unlock()
|
|
//var proof proofList
|
|
//err := sdb.trie.Prove(crypto.Keccak256(a.Bytes()), 0, &proof)
|
|
//return [][]byte(proof), err
|
|
return nil, nil
|
|
}
|
|
|
|
// GetStorageProof returns the storage proof for a given key
|
|
func (sdb *IntraBlockState) GetStorageProof(a common.Address, key common.Hash) ([][]byte, error) {
|
|
//sdb.Lock()
|
|
//defer sdb.Unlock()
|
|
//var proof proofList
|
|
//trie := sdb.StorageTrie(a)
|
|
//if trie == nil {
|
|
// return proof, errors.New("storage trie for requested address does not exist")
|
|
//}
|
|
//err := trie.Prove(crypto.Keccak256(key.Bytes()), 0, &proof)
|
|
//return [][]byte(proof), err
|
|
return nil, nil
|
|
}
|
|
|
|
// GetCommittedState retrieves a value from the given account's committed storage trie.
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) GetCommittedState(addr common.Address, key *common.Hash, value *uint256.Int) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil && !stateObject.deleted {
|
|
stateObject.GetCommittedState(key, value)
|
|
} else {
|
|
value.Clear()
|
|
}
|
|
}
|
|
|
|
func (sdb *IntraBlockState) HasSuicided(addr common.Address) bool {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject == nil {
|
|
return false
|
|
}
|
|
if stateObject.deleted {
|
|
return false
|
|
}
|
|
if stateObject.created {
|
|
return false
|
|
}
|
|
return stateObject.suicided
|
|
}
|
|
|
|
/*
|
|
* SETTERS
|
|
*/
|
|
|
|
// AddBalance adds amount to the account associated with addr.
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) AddBalance(addr common.Address, amount *uint256.Int) {
|
|
sdb.Lock()
|
|
|
|
if sdb.trace {
|
|
fmt.Printf("AddBalance %x, %d\n", addr, amount)
|
|
}
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
}
|
|
sdb.Unlock()
|
|
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.AddBalance(amount)
|
|
}
|
|
}
|
|
|
|
// SubBalance subtracts amount from the account associated with addr.
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) SubBalance(addr common.Address, amount *uint256.Int) {
|
|
sdb.Lock()
|
|
if sdb.trace {
|
|
fmt.Printf("SubBalance %x, %d\n", addr, amount)
|
|
}
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
|
|
}
|
|
sdb.Unlock()
|
|
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SubBalance(amount)
|
|
}
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) SetBalance(addr common.Address, amount *uint256.Int) {
|
|
sdb.Lock()
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
}
|
|
sdb.Unlock()
|
|
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SetBalance(amount)
|
|
}
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) SetNonce(addr common.Address, nonce uint64) {
|
|
sdb.Lock()
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
}
|
|
sdb.Unlock()
|
|
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SetNonce(nonce)
|
|
}
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#code-hash
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) SetCode(addr common.Address, code []byte) {
|
|
sdb.Lock()
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
}
|
|
sdb.Unlock()
|
|
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SetCode(crypto.Keccak256Hash(code), code)
|
|
}
|
|
}
|
|
|
|
// DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account
|
|
func (sdb *IntraBlockState) SetState(addr common.Address, key *common.Hash, value uint256.Int) {
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SetState(key, value)
|
|
}
|
|
}
|
|
|
|
// SetStorage replaces the entire storage for the specified account with given
|
|
// storage. This function should only be used for debugging.
|
|
func (sdb *IntraBlockState) SetStorage(addr common.Address, storage Storage) {
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.SetStorage(storage)
|
|
}
|
|
}
|
|
|
|
// SetIncarnation sets incarnation for account if account exists
|
|
func (sdb *IntraBlockState) SetIncarnation(addr common.Address, incarnation uint64) {
|
|
stateObject := sdb.GetOrNewStateObject(addr)
|
|
if stateObject != nil {
|
|
stateObject.setIncarnation(incarnation)
|
|
}
|
|
}
|
|
|
|
func (sdb *IntraBlockState) GetIncarnation(addr common.Address) uint64 {
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject != nil {
|
|
return stateObject.data.Incarnation
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// Suicide marks the given account as suicided.
|
|
// This clears the account balance.
|
|
//
|
|
// The account's state object is still available until the state is committed,
|
|
// getStateObject will return a non-nil account after Suicide.
|
|
func (sdb *IntraBlockState) Suicide(addr common.Address) bool {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountRead err", err)
|
|
}
|
|
err = sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace {
|
|
fmt.Println("CaptureAccountWrite err", err)
|
|
}
|
|
}
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject == nil || stateObject.deleted {
|
|
return false
|
|
}
|
|
sdb.journal.append(suicideChange{
|
|
account: &addr,
|
|
prev: stateObject.suicided,
|
|
prevbalance: *stateObject.Balance(),
|
|
})
|
|
stateObject.markSuicided()
|
|
stateObject.created = false
|
|
stateObject.data.Balance.Clear()
|
|
|
|
return true
|
|
}
|
|
|
|
var nullLocation = common.Hash{}
|
|
var nullValue = common.Big0
|
|
|
|
// do not lock!!!
|
|
// Retrieve a state object given my the address. Returns nil if not found.
|
|
func (sdb *IntraBlockState) getStateObject(addr common.Address) (stateObject *stateObject) {
|
|
// Prefer 'live' objects.
|
|
if obj := sdb.stateObjects[addr]; obj != nil {
|
|
return obj
|
|
}
|
|
|
|
// Load the object from the database.
|
|
if _, ok := sdb.nilAccounts[addr]; ok {
|
|
return nil
|
|
}
|
|
account, err := sdb.stateReader.ReadAccountData(addr)
|
|
if err != nil {
|
|
sdb.setErrorUnsafe(err)
|
|
return nil
|
|
}
|
|
if account == nil {
|
|
sdb.nilAccounts[addr] = struct{}{}
|
|
return nil
|
|
}
|
|
|
|
// Insert into the live set.
|
|
obj := newObject(sdb, addr, account, account)
|
|
sdb.setStateObject(obj)
|
|
return obj
|
|
}
|
|
|
|
func (sdb *IntraBlockState) setStateObject(object *stateObject) {
|
|
sdb.stateObjects[object.Address()] = object
|
|
}
|
|
|
|
// Retrieve a state object or create a new state object if nil.
|
|
func (sdb *IntraBlockState) GetOrNewStateObject(addr common.Address) *stateObject {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
stateObject := sdb.getStateObject(addr)
|
|
if stateObject == nil || stateObject.deleted {
|
|
stateObject = sdb.createObject(addr, nil /* previous */)
|
|
}
|
|
return stateObject
|
|
}
|
|
|
|
// createObject creates a new state object. If there is an existing account with
|
|
// the given address, it is overwritten.
|
|
func (sdb *IntraBlockState) createObject(addr common.Address, previous *stateObject) (newobj *stateObject) {
|
|
account := new(accounts.Account)
|
|
if previous != nil {
|
|
account.Balance.Set(&previous.data.Balance)
|
|
account.Initialised = true
|
|
}
|
|
var original *accounts.Account
|
|
if previous == nil {
|
|
original = &accounts.Account{}
|
|
} else {
|
|
original = &previous.original
|
|
}
|
|
account.Root.SetBytes(trie.EmptyRoot[:]) // old storage should be ignored
|
|
newobj = newObject(sdb, addr, account, original)
|
|
if previous != nil && previous.suicided {
|
|
newobj.suicided = true
|
|
}
|
|
newobj.setNonce(0) // sets the object to dirty
|
|
if previous == nil {
|
|
sdb.journal.append(createObjectChange{account: &addr})
|
|
} else {
|
|
sdb.journal.append(resetObjectChange{prev: previous})
|
|
}
|
|
sdb.setStateObject(newobj)
|
|
return newobj
|
|
}
|
|
|
|
// CreateAccount explicitly creates a state object. If a state object with the address
|
|
// already exists the balance is carried over to the new account.
|
|
//
|
|
// CreateAccount is called during the EVM CREATE operation. The situation might arise that
|
|
// a contract does the following:
|
|
//
|
|
// 1. sends funds to sha(account ++ (nonce + 1))
|
|
// 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 (sdb *IntraBlockState) CreateAccount(addr common.Address, contractCreation bool) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
if sdb.tracer != nil {
|
|
err := sdb.tracer.CaptureAccountRead(addr)
|
|
if sdb.trace && err != nil {
|
|
log.Error("error while CaptureAccountRead", "err", err)
|
|
}
|
|
|
|
err = sdb.tracer.CaptureAccountWrite(addr)
|
|
if sdb.trace && err != nil {
|
|
log.Error("error while CaptureAccountWrite", "err", err)
|
|
}
|
|
}
|
|
|
|
var prevInc uint64
|
|
previous := sdb.getStateObject(addr)
|
|
if contractCreation {
|
|
if previous != nil && previous.suicided {
|
|
prevInc = previous.data.Incarnation
|
|
} else {
|
|
inc, err := sdb.stateReader.ReadAccountIncarnation(addr)
|
|
if sdb.trace && err != nil {
|
|
log.Error("error while ReadAccountIncarnation", "err", err)
|
|
}
|
|
if err == nil {
|
|
prevInc = inc
|
|
}
|
|
}
|
|
}
|
|
|
|
newObj := sdb.createObject(addr, previous)
|
|
|
|
if contractCreation {
|
|
newObj.created = true
|
|
newObj.data.Incarnation = prevInc + 1
|
|
} else {
|
|
newObj.suicided = false
|
|
}
|
|
}
|
|
|
|
// Snapshot returns an identifier for the current revision of the state.
|
|
func (sdb *IntraBlockState) Snapshot() int {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
id := sdb.nextRevisionID
|
|
sdb.nextRevisionID++
|
|
sdb.validRevisions = append(sdb.validRevisions, revision{id, sdb.journal.length()})
|
|
return id
|
|
}
|
|
|
|
// RevertToSnapshot reverts all state changes made since the given revision.
|
|
func (sdb *IntraBlockState) RevertToSnapshot(revid int) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
// Find the snapshot in the stack of valid snapshots.
|
|
idx := sort.Search(len(sdb.validRevisions), func(i int) bool {
|
|
return sdb.validRevisions[i].id >= revid
|
|
})
|
|
if idx == len(sdb.validRevisions) || sdb.validRevisions[idx].id != revid {
|
|
panic(fmt.Errorf("revision id %v cannot be reverted", revid))
|
|
}
|
|
snapshot := sdb.validRevisions[idx].journalIndex
|
|
|
|
// Replay the journal to undo changes and remove invalidated snapshots
|
|
sdb.journal.revert(sdb, snapshot)
|
|
sdb.validRevisions = sdb.validRevisions[:idx]
|
|
}
|
|
|
|
// GetRefund returns the current value of the refund counter.
|
|
func (sdb *IntraBlockState) GetRefund() uint64 {
|
|
sdb.RLock()
|
|
defer sdb.RUnlock()
|
|
return sdb.refund
|
|
}
|
|
|
|
func updateAccount(ctx context.Context, stateWriter StateWriter, addr common.Address, stateObject *stateObject, isDirty bool) error {
|
|
emptyRemoval := params.GetForkFlag(ctx, params.IsEIP158Enabled) && stateObject.empty()
|
|
if stateObject.suicided || (isDirty && emptyRemoval) {
|
|
if err := stateWriter.DeleteAccount(ctx, addr, &stateObject.original); err != nil {
|
|
return err
|
|
}
|
|
stateObject.deleted = true
|
|
}
|
|
if isDirty && (stateObject.created || !stateObject.suicided) && !emptyRemoval {
|
|
stateObject.deleted = false
|
|
// Write any contract code associated with the state object
|
|
if stateObject.code != nil && stateObject.dirtyCode {
|
|
if err := stateWriter.UpdateAccountCode(addr, stateObject.data.Incarnation, common.BytesToHash(stateObject.CodeHash()), stateObject.code); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if stateObject.created {
|
|
if err := stateWriter.CreateContract(addr); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if err := stateObject.updateTrie(ctx, stateWriter); err != nil {
|
|
return err
|
|
}
|
|
if err := stateWriter.UpdateAccountData(ctx, addr, &stateObject.original, &stateObject.data); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// FinalizeTx should be called after every transaction.
|
|
func (sdb *IntraBlockState) FinalizeTx(ctx context.Context, stateWriter StateWriter) error {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
for addr := range sdb.journal.dirties {
|
|
stateObject, exist := sdb.stateObjects[addr]
|
|
if !exist {
|
|
// ripeMD is 'touched' at block 1714175, in tx 0x1237f737031e40bcde4a8b7e717b2d15e3ecadfe49bb1bbc71ee9deb09c6fcf2
|
|
// That tx goes out of gas, and although the notion of 'touched' does not exist there, the
|
|
// touch-event will still be recorded in the journal. Since ripeMD is a special snowflake,
|
|
// it will persist in the journal even though the journal is reverted. In this special circumstance,
|
|
// it may exist in `sdb.journal.dirties` but not in `sdb.stateObjects`.
|
|
// Thus, we can safely ignore it here
|
|
continue
|
|
}
|
|
|
|
if err := updateAccount(ctx, stateWriter, addr, stateObject, true); err != nil {
|
|
return err
|
|
}
|
|
|
|
sdb.stateObjectsDirty[addr] = struct{}{}
|
|
}
|
|
// Invalidate journal because reverting across transactions is not allowed.
|
|
sdb.clearJournalAndRefund()
|
|
return nil
|
|
}
|
|
|
|
// CommitBlock finalizes the state by removing the self destructed objects
|
|
// and clears the journal as well as the refunds.
|
|
func (sdb *IntraBlockState) CommitBlock(ctx context.Context, stateWriter StateWriter) error {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
for addr := range sdb.journal.dirties {
|
|
sdb.stateObjectsDirty[addr] = struct{}{}
|
|
}
|
|
for addr, stateObject := range sdb.stateObjects {
|
|
_, isDirty := sdb.stateObjectsDirty[addr]
|
|
if err := updateAccount(ctx, stateWriter, addr, stateObject, isDirty); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
// Invalidate journal because reverting across transactions is not allowed.
|
|
sdb.clearJournalAndRefund()
|
|
return nil
|
|
}
|
|
|
|
// Prepare sets the current transaction hash and index and block hash which is
|
|
// used when the EVM emits new state logs.
|
|
func (sdb *IntraBlockState) Prepare(thash, bhash common.Hash, ti int) {
|
|
sdb.Lock()
|
|
defer sdb.Unlock()
|
|
|
|
sdb.thash = thash
|
|
sdb.bhash = bhash
|
|
sdb.txIndex = ti
|
|
sdb.accessList = newAccessList()
|
|
}
|
|
|
|
// no not lock
|
|
func (sdb *IntraBlockState) clearJournalAndRefund() {
|
|
sdb.journal = newJournal()
|
|
sdb.validRevisions = sdb.validRevisions[:0]
|
|
sdb.refund = 0
|
|
}
|
|
|
|
// PrepareAccessList handles the preparatory steps for executing a state transition with
|
|
// regards to both EIP-2929 and EIP-2930:
|
|
//
|
|
// - Add sender to access list (2929)
|
|
// - Add destination to access list (2929)
|
|
// - Add precompiles to access list (2929)
|
|
// - Add the contents of the optional tx access list (2930)
|
|
//
|
|
// This method should only be called if Yolov3/Berlin/2929+2930 is applicable at the current number.
|
|
func (sdb *IntraBlockState) PrepareAccessList(sender common.Address, dst *common.Address, precompiles []common.Address, list types.AccessList) {
|
|
sdb.AddAddressToAccessList(sender)
|
|
if dst != nil {
|
|
sdb.AddAddressToAccessList(*dst)
|
|
// If it's a create-tx, the destination will be added inside evm.create
|
|
}
|
|
for _, addr := range precompiles {
|
|
sdb.AddAddressToAccessList(addr)
|
|
}
|
|
for _, el := range list {
|
|
sdb.AddAddressToAccessList(el.Address)
|
|
for _, key := range el.StorageKeys {
|
|
sdb.AddSlotToAccessList(el.Address, key)
|
|
}
|
|
}
|
|
}
|
|
|
|
// AddAddressToAccessList adds the given address to the access list
|
|
func (sdb *IntraBlockState) AddAddressToAccessList(addr common.Address) {
|
|
if sdb.accessList.AddAddress(addr) {
|
|
sdb.journal.append(accessListAddAccountChange{&addr})
|
|
}
|
|
}
|
|
|
|
// AddSlotToAccessList adds the given (address, slot)-tuple to the access list
|
|
func (sdb *IntraBlockState) AddSlotToAccessList(addr common.Address, slot common.Hash) {
|
|
addrMod, slotMod := sdb.accessList.AddSlot(addr, slot)
|
|
if addrMod {
|
|
// In practice, this should not happen, since there is no way to enter the
|
|
// scope of 'address' without having the 'address' become already added
|
|
// to the access list (via call-variant, create, etc).
|
|
// Better safe than sorry, though
|
|
sdb.journal.append(accessListAddAccountChange{&addr})
|
|
}
|
|
if slotMod {
|
|
sdb.journal.append(accessListAddSlotChange{
|
|
address: &addr,
|
|
slot: &slot,
|
|
})
|
|
}
|
|
}
|
|
|
|
// AddressInAccessList returns true if the given address is in the access list.
|
|
func (sdb *IntraBlockState) AddressInAccessList(addr common.Address) bool {
|
|
return sdb.accessList.ContainsAddress(addr)
|
|
}
|
|
|
|
// SlotInAccessList returns true if the given (address, slot)-tuple is in the access list.
|
|
func (sdb *IntraBlockState) SlotInAccessList(addr common.Address, slot common.Hash) (addressPresent bool, slotPresent bool) {
|
|
return sdb.accessList.Contains(addr, slot)
|
|
}
|