mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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82b80c2ebe
* CheckChangeSets and thin history * small code de-duplication * small code clean-up * Fix an error in mutation.getNoLock * CheckChangeSets: truly make historyfile = chaindata by default
109 lines
3.0 KiB
Go
109 lines
3.0 KiB
Go
package state
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/ledgerwatch/turbo-geth/common"
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"github.com/ledgerwatch/turbo-geth/common/changeset"
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"github.com/ledgerwatch/turbo-geth/common/dbutils"
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"github.com/ledgerwatch/turbo-geth/common/debug"
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"github.com/ledgerwatch/turbo-geth/common/hexutil"
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"github.com/ledgerwatch/turbo-geth/core/types/accounts"
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"github.com/ledgerwatch/turbo-geth/crypto"
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)
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// ChangeSetWriter is a mock StateWriter that accumulates changes in-memory into ChangeSets.
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type ChangeSetWriter struct {
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accountChanges map[common.Address][]byte
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storageChanged map[common.Address]bool
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storageChanges map[string][]byte
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}
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func NewChangeSetWriter() *ChangeSetWriter {
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return &ChangeSetWriter{
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accountChanges: make(map[common.Address][]byte),
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storageChanged: make(map[common.Address]bool),
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storageChanges: make(map[string][]byte),
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}
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}
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func (w *ChangeSetWriter) GetAccountChanges() *changeset.ChangeSet {
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cs := changeset.NewAccountChangeSet()
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for key, val := range w.accountChanges {
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if err := cs.Add(crypto.Keccak256(key.Bytes()), val); err != nil {
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panic(err)
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}
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}
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return cs
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}
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func (w *ChangeSetWriter) GetStorageChanges() *changeset.ChangeSet {
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cs := changeset.NewStorageChangeSet()
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for key, val := range w.storageChanges {
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if err := cs.Add([]byte(key), val); err != nil {
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panic(err)
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}
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}
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return cs
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}
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func (w *ChangeSetWriter) UpdateAccountData(ctx context.Context, address common.Address, original, account *accounts.Account) error {
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if !accountsEqual(original, account) || w.storageChanged[address] {
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w.accountChanges[address] = originalAccountData(original, debug.IsThinHistory())
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}
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return nil
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}
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func (w *ChangeSetWriter) UpdateAccountCode(addrHash common.Hash, incarnation uint64, codeHash common.Hash, code []byte) error {
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return nil
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}
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func (w *ChangeSetWriter) DeleteAccount(ctx context.Context, address common.Address, original *accounts.Account) error {
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w.accountChanges[address] = originalAccountData(original, false)
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return nil
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}
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func (w *ChangeSetWriter) WriteAccountStorage(ctx context.Context, address common.Address, incarnation uint64, key, original, value *common.Hash) error {
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if *original == *value {
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return nil
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}
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secKey, err := common.HashData(key[:])
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if err != nil {
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return err
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}
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addrHash, err := common.HashData(address[:])
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if err != nil {
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return err
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}
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if incarnation == 0 {
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incarnation = FirstContractIncarnation
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}
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compositeKey := dbutils.GenerateCompositeStorageKey(addrHash, incarnation, secKey)
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o := bytes.TrimLeft(original[:], "\x00")
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originalValue := make([]byte, len(o))
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copy(originalValue, o)
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w.storageChanges[string(compositeKey)] = originalValue
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w.storageChanged[address] = true
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return nil
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}
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func (w *ChangeSetWriter) CreateContract(address common.Address) error {
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return nil
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}
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func (w *ChangeSetWriter) PrintChangedAccounts() {
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fmt.Println("Account Changes")
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for k := range w.accountChanges {
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fmt.Println(hexutil.Encode(k.Bytes()))
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}
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fmt.Println("------------------------------------------")
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}
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