748 lines
24 KiB
Go
748 lines
24 KiB
Go
// Copyright 2015 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
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/ethereum/go-ethereum/trie"
|
|
"github.com/ethereum/go-ethereum/triedb"
|
|
"github.com/ethereum/go-ethereum/triedb/hashdb"
|
|
"github.com/ethereum/go-ethereum/triedb/pathdb"
|
|
"github.com/holiman/uint256"
|
|
)
|
|
|
|
// testAccount is the data associated with an account used by the state tests.
|
|
type testAccount struct {
|
|
address common.Address
|
|
balance *uint256.Int
|
|
nonce uint64
|
|
code []byte
|
|
}
|
|
|
|
// makeTestState create a sample test state to test node-wise reconstruction.
|
|
func makeTestState(scheme string) (ethdb.Database, Database, *triedb.Database, common.Hash, []*testAccount) {
|
|
// Create an empty state
|
|
config := &triedb.Config{Preimages: true}
|
|
if scheme == rawdb.PathScheme {
|
|
config.PathDB = pathdb.Defaults
|
|
} else {
|
|
config.HashDB = hashdb.Defaults
|
|
}
|
|
db := rawdb.NewMemoryDatabase()
|
|
nodeDb := triedb.NewDatabase(db, config)
|
|
sdb := NewDatabaseWithNodeDB(db, nodeDb)
|
|
state, _ := New(types.EmptyRootHash, sdb, nil)
|
|
|
|
// Fill it with some arbitrary data
|
|
var accounts []*testAccount
|
|
for i := byte(0); i < 96; i++ {
|
|
obj := state.getOrNewStateObject(common.BytesToAddress([]byte{i}))
|
|
acc := &testAccount{address: common.BytesToAddress([]byte{i})}
|
|
|
|
obj.AddBalance(uint256.NewInt(uint64(11 * i)))
|
|
acc.balance = uint256.NewInt(uint64(11 * i))
|
|
|
|
obj.SetNonce(uint64(42 * i))
|
|
acc.nonce = uint64(42 * i)
|
|
|
|
if i%3 == 0 {
|
|
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i}), []byte{i, i, i, i, i})
|
|
acc.code = []byte{i, i, i, i, i}
|
|
}
|
|
if i%5 == 0 {
|
|
for j := byte(0); j < 5; j++ {
|
|
hash := crypto.Keccak256Hash([]byte{i, i, i, i, i, j, j})
|
|
obj.SetState(hash, hash)
|
|
}
|
|
}
|
|
accounts = append(accounts, acc)
|
|
}
|
|
root, _ := state.Commit(0, false)
|
|
|
|
// Return the generated state
|
|
return db, sdb, nodeDb, root, accounts
|
|
}
|
|
|
|
// checkStateAccounts cross references a reconstructed state with an expected
|
|
// account array.
|
|
func checkStateAccounts(t *testing.T, db ethdb.Database, scheme string, root common.Hash, accounts []*testAccount) {
|
|
var config triedb.Config
|
|
if scheme == rawdb.PathScheme {
|
|
config.PathDB = pathdb.Defaults
|
|
}
|
|
// Check root availability and state contents
|
|
state, err := New(root, NewDatabaseWithConfig(db, &config), nil)
|
|
if err != nil {
|
|
t.Fatalf("failed to create state trie at %x: %v", root, err)
|
|
}
|
|
if err := checkStateConsistency(db, scheme, root); err != nil {
|
|
t.Fatalf("inconsistent state trie at %x: %v", root, err)
|
|
}
|
|
for i, acc := range accounts {
|
|
if balance := state.GetBalance(acc.address); balance.Cmp(acc.balance) != 0 {
|
|
t.Errorf("account %d: balance mismatch: have %v, want %v", i, balance, acc.balance)
|
|
}
|
|
if nonce := state.GetNonce(acc.address); nonce != acc.nonce {
|
|
t.Errorf("account %d: nonce mismatch: have %v, want %v", i, nonce, acc.nonce)
|
|
}
|
|
if code := state.GetCode(acc.address); !bytes.Equal(code, acc.code) {
|
|
t.Errorf("account %d: code mismatch: have %x, want %x", i, code, acc.code)
|
|
}
|
|
}
|
|
}
|
|
|
|
// checkStateConsistency checks that all data of a state root is present.
|
|
func checkStateConsistency(db ethdb.Database, scheme string, root common.Hash) error {
|
|
config := &triedb.Config{Preimages: true}
|
|
if scheme == rawdb.PathScheme {
|
|
config.PathDB = pathdb.Defaults
|
|
}
|
|
state, err := New(root, NewDatabaseWithConfig(db, config), nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
it := newNodeIterator(state)
|
|
for it.Next() {
|
|
}
|
|
return it.Error
|
|
}
|
|
|
|
// Tests that an empty state is not scheduled for syncing.
|
|
func TestEmptyStateSync(t *testing.T) {
|
|
dbA := triedb.NewDatabase(rawdb.NewMemoryDatabase(), nil)
|
|
dbB := triedb.NewDatabase(rawdb.NewMemoryDatabase(), &triedb.Config{PathDB: pathdb.Defaults})
|
|
|
|
sync := NewStateSync(types.EmptyRootHash, rawdb.NewMemoryDatabase(), nil, dbA.Scheme())
|
|
if paths, nodes, codes := sync.Missing(1); len(paths) != 0 || len(nodes) != 0 || len(codes) != 0 {
|
|
t.Errorf("content requested for empty state: %v, %v, %v", nodes, paths, codes)
|
|
}
|
|
sync = NewStateSync(types.EmptyRootHash, rawdb.NewMemoryDatabase(), nil, dbB.Scheme())
|
|
if paths, nodes, codes := sync.Missing(1); len(paths) != 0 || len(nodes) != 0 || len(codes) != 0 {
|
|
t.Errorf("content requested for empty state: %v, %v, %v", nodes, paths, codes)
|
|
}
|
|
}
|
|
|
|
// Tests that given a root hash, a state can sync iteratively on a single thread,
|
|
// requesting retrieval tasks and returning all of them in one go.
|
|
func TestIterativeStateSyncIndividual(t *testing.T) {
|
|
testIterativeStateSync(t, 1, false, false, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 1, false, false, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeStateSyncBatched(t *testing.T) {
|
|
testIterativeStateSync(t, 100, false, false, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 100, false, false, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeStateSyncIndividualFromDisk(t *testing.T) {
|
|
testIterativeStateSync(t, 1, true, false, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 1, true, false, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeStateSyncBatchedFromDisk(t *testing.T) {
|
|
testIterativeStateSync(t, 100, true, false, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 100, true, false, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeStateSyncIndividualByPath(t *testing.T) {
|
|
testIterativeStateSync(t, 1, false, true, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 1, false, true, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeStateSyncBatchedByPath(t *testing.T) {
|
|
testIterativeStateSync(t, 100, false, true, rawdb.HashScheme)
|
|
testIterativeStateSync(t, 100, false, true, rawdb.PathScheme)
|
|
}
|
|
|
|
// stateElement represents the element in the state trie(bytecode or trie node).
|
|
type stateElement struct {
|
|
path string
|
|
hash common.Hash
|
|
code common.Hash
|
|
syncPath trie.SyncPath
|
|
}
|
|
|
|
func testIterativeStateSync(t *testing.T, count int, commit bool, bypath bool, scheme string) {
|
|
// Create a random state to copy
|
|
srcDisk, srcDb, ndb, srcRoot, srcAccounts := makeTestState(scheme)
|
|
if commit {
|
|
ndb.Commit(srcRoot, false)
|
|
}
|
|
srcTrie, _ := trie.New(trie.StateTrieID(srcRoot), ndb)
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, nil, ndb.Scheme())
|
|
|
|
var (
|
|
nodeElements []stateElement
|
|
codeElements []stateElement
|
|
)
|
|
paths, nodes, codes := sched.Missing(count)
|
|
for i := 0; i < len(paths); i++ {
|
|
nodeElements = append(nodeElements, stateElement{
|
|
path: paths[i],
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(paths[i])),
|
|
})
|
|
}
|
|
for i := 0; i < len(codes); i++ {
|
|
codeElements = append(codeElements, stateElement{code: codes[i]})
|
|
}
|
|
reader, err := ndb.Reader(srcRoot)
|
|
if err != nil {
|
|
t.Fatalf("state is not existent, %#x", srcRoot)
|
|
}
|
|
for len(nodeElements)+len(codeElements) > 0 {
|
|
var (
|
|
nodeResults = make([]trie.NodeSyncResult, len(nodeElements))
|
|
codeResults = make([]trie.CodeSyncResult, len(codeElements))
|
|
)
|
|
for i, element := range codeElements {
|
|
data, err := srcDb.ContractCode(common.Address{}, element.code)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve contract bytecode for hash %x", element.code)
|
|
}
|
|
codeResults[i] = trie.CodeSyncResult{Hash: element.code, Data: data}
|
|
}
|
|
for i, node := range nodeElements {
|
|
if bypath {
|
|
if len(node.syncPath) == 1 {
|
|
data, _, err := srcTrie.GetNode(node.syncPath[0])
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for path %x: %v", node.syncPath[0], err)
|
|
}
|
|
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
|
|
} else {
|
|
var acc types.StateAccount
|
|
if err := rlp.DecodeBytes(srcTrie.MustGet(node.syncPath[0]), &acc); err != nil {
|
|
t.Fatalf("failed to decode account on path %x: %v", node.syncPath[0], err)
|
|
}
|
|
id := trie.StorageTrieID(srcRoot, common.BytesToHash(node.syncPath[0]), acc.Root)
|
|
stTrie, err := trie.New(id, ndb)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve storage trie for path %x: %v", node.syncPath[1], err)
|
|
}
|
|
data, _, err := stTrie.GetNode(node.syncPath[1])
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for path %x: %v", node.syncPath[1], err)
|
|
}
|
|
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
|
|
}
|
|
} else {
|
|
owner, inner := trie.ResolvePath([]byte(node.path))
|
|
data, err := reader.Node(owner, inner, node.hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for key %v", []byte(node.path))
|
|
}
|
|
nodeResults[i] = trie.NodeSyncResult{Path: node.path, Data: data}
|
|
}
|
|
}
|
|
for _, result := range codeResults {
|
|
if err := sched.ProcessCode(result); err != nil {
|
|
t.Errorf("failed to process result %v", err)
|
|
}
|
|
}
|
|
for _, result := range nodeResults {
|
|
if err := sched.ProcessNode(result); err != nil {
|
|
t.Errorf("failed to process result %v", err)
|
|
}
|
|
}
|
|
batch := dstDb.NewBatch()
|
|
if err := sched.Commit(batch); err != nil {
|
|
t.Fatalf("failed to commit data: %v", err)
|
|
}
|
|
batch.Write()
|
|
|
|
paths, nodes, codes = sched.Missing(count)
|
|
nodeElements = nodeElements[:0]
|
|
for i := 0; i < len(paths); i++ {
|
|
nodeElements = append(nodeElements, stateElement{
|
|
path: paths[i],
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(paths[i])),
|
|
})
|
|
}
|
|
codeElements = codeElements[:0]
|
|
for i := 0; i < len(codes); i++ {
|
|
codeElements = append(codeElements, stateElement{
|
|
code: codes[i],
|
|
})
|
|
}
|
|
}
|
|
// Copy the preimages from source db in order to traverse the state.
|
|
srcDb.TrieDB().WritePreimages()
|
|
copyPreimages(srcDisk, dstDb)
|
|
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, ndb.Scheme(), srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that the trie scheduler can correctly reconstruct the state even if only
|
|
// partial results are returned, and the others sent only later.
|
|
func TestIterativeDelayedStateSync(t *testing.T) {
|
|
testIterativeDelayedStateSync(t, rawdb.HashScheme)
|
|
testIterativeDelayedStateSync(t, rawdb.PathScheme)
|
|
}
|
|
|
|
func testIterativeDelayedStateSync(t *testing.T, scheme string) {
|
|
// Create a random state to copy
|
|
srcDisk, srcDb, ndb, srcRoot, srcAccounts := makeTestState(scheme)
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, nil, ndb.Scheme())
|
|
|
|
var (
|
|
nodeElements []stateElement
|
|
codeElements []stateElement
|
|
)
|
|
paths, nodes, codes := sched.Missing(0)
|
|
for i := 0; i < len(paths); i++ {
|
|
nodeElements = append(nodeElements, stateElement{
|
|
path: paths[i],
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(paths[i])),
|
|
})
|
|
}
|
|
for i := 0; i < len(codes); i++ {
|
|
codeElements = append(codeElements, stateElement{code: codes[i]})
|
|
}
|
|
reader, err := ndb.Reader(srcRoot)
|
|
if err != nil {
|
|
t.Fatalf("state is not existent, %#x", srcRoot)
|
|
}
|
|
for len(nodeElements)+len(codeElements) > 0 {
|
|
// Sync only half of the scheduled nodes
|
|
var nodeProcessed int
|
|
var codeProcessed int
|
|
if len(codeElements) > 0 {
|
|
codeResults := make([]trie.CodeSyncResult, len(codeElements)/2+1)
|
|
for i, element := range codeElements[:len(codeResults)] {
|
|
data, err := srcDb.ContractCode(common.Address{}, element.code)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve contract bytecode for %x", element.code)
|
|
}
|
|
codeResults[i] = trie.CodeSyncResult{Hash: element.code, Data: data}
|
|
}
|
|
for _, result := range codeResults {
|
|
if err := sched.ProcessCode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
codeProcessed = len(codeResults)
|
|
}
|
|
if len(nodeElements) > 0 {
|
|
nodeResults := make([]trie.NodeSyncResult, len(nodeElements)/2+1)
|
|
for i, element := range nodeElements[:len(nodeResults)] {
|
|
owner, inner := trie.ResolvePath([]byte(element.path))
|
|
data, err := reader.Node(owner, inner, element.hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve contract bytecode for %x", element.code)
|
|
}
|
|
nodeResults[i] = trie.NodeSyncResult{Path: element.path, Data: data}
|
|
}
|
|
for _, result := range nodeResults {
|
|
if err := sched.ProcessNode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
nodeProcessed = len(nodeResults)
|
|
}
|
|
batch := dstDb.NewBatch()
|
|
if err := sched.Commit(batch); err != nil {
|
|
t.Fatalf("failed to commit data: %v", err)
|
|
}
|
|
batch.Write()
|
|
|
|
paths, nodes, codes = sched.Missing(0)
|
|
nodeElements = nodeElements[nodeProcessed:]
|
|
for i := 0; i < len(paths); i++ {
|
|
nodeElements = append(nodeElements, stateElement{
|
|
path: paths[i],
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(paths[i])),
|
|
})
|
|
}
|
|
codeElements = codeElements[codeProcessed:]
|
|
for i := 0; i < len(codes); i++ {
|
|
codeElements = append(codeElements, stateElement{
|
|
code: codes[i],
|
|
})
|
|
}
|
|
}
|
|
// Copy the preimages from source db in order to traverse the state.
|
|
srcDb.TrieDB().WritePreimages()
|
|
copyPreimages(srcDisk, dstDb)
|
|
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, ndb.Scheme(), srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that given a root hash, a trie can sync iteratively on a single thread,
|
|
// requesting retrieval tasks and returning all of them in one go, however in a
|
|
// random order.
|
|
func TestIterativeRandomStateSyncIndividual(t *testing.T) {
|
|
testIterativeRandomStateSync(t, 1, rawdb.HashScheme)
|
|
testIterativeRandomStateSync(t, 1, rawdb.PathScheme)
|
|
}
|
|
func TestIterativeRandomStateSyncBatched(t *testing.T) {
|
|
testIterativeRandomStateSync(t, 100, rawdb.HashScheme)
|
|
testIterativeRandomStateSync(t, 100, rawdb.PathScheme)
|
|
}
|
|
|
|
func testIterativeRandomStateSync(t *testing.T, count int, scheme string) {
|
|
// Create a random state to copy
|
|
srcDisk, srcDb, ndb, srcRoot, srcAccounts := makeTestState(scheme)
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, nil, ndb.Scheme())
|
|
|
|
nodeQueue := make(map[string]stateElement)
|
|
codeQueue := make(map[common.Hash]struct{})
|
|
paths, nodes, codes := sched.Missing(count)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
reader, err := ndb.Reader(srcRoot)
|
|
if err != nil {
|
|
t.Fatalf("state is not existent, %#x", srcRoot)
|
|
}
|
|
for len(nodeQueue)+len(codeQueue) > 0 {
|
|
// Fetch all the queued nodes in a random order
|
|
if len(codeQueue) > 0 {
|
|
results := make([]trie.CodeSyncResult, 0, len(codeQueue))
|
|
for hash := range codeQueue {
|
|
data, err := srcDb.ContractCode(common.Address{}, hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
|
|
}
|
|
for _, result := range results {
|
|
if err := sched.ProcessCode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
if len(nodeQueue) > 0 {
|
|
results := make([]trie.NodeSyncResult, 0, len(nodeQueue))
|
|
for path, element := range nodeQueue {
|
|
owner, inner := trie.ResolvePath([]byte(element.path))
|
|
data, err := reader.Node(owner, inner, element.hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x %v %v", element.hash, []byte(element.path), element.path)
|
|
}
|
|
results = append(results, trie.NodeSyncResult{Path: path, Data: data})
|
|
}
|
|
for _, result := range results {
|
|
if err := sched.ProcessNode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
batch := dstDb.NewBatch()
|
|
if err := sched.Commit(batch); err != nil {
|
|
t.Fatalf("failed to commit data: %v", err)
|
|
}
|
|
batch.Write()
|
|
|
|
nodeQueue = make(map[string]stateElement)
|
|
codeQueue = make(map[common.Hash]struct{})
|
|
paths, nodes, codes := sched.Missing(count)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Copy the preimages from source db in order to traverse the state.
|
|
srcDb.TrieDB().WritePreimages()
|
|
copyPreimages(srcDisk, dstDb)
|
|
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, ndb.Scheme(), srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that the trie scheduler can correctly reconstruct the state even if only
|
|
// partial results are returned (Even those randomly), others sent only later.
|
|
func TestIterativeRandomDelayedStateSync(t *testing.T) {
|
|
testIterativeRandomDelayedStateSync(t, rawdb.HashScheme)
|
|
testIterativeRandomDelayedStateSync(t, rawdb.PathScheme)
|
|
}
|
|
|
|
func testIterativeRandomDelayedStateSync(t *testing.T, scheme string) {
|
|
// Create a random state to copy
|
|
srcDisk, srcDb, ndb, srcRoot, srcAccounts := makeTestState(scheme)
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, nil, ndb.Scheme())
|
|
|
|
nodeQueue := make(map[string]stateElement)
|
|
codeQueue := make(map[common.Hash]struct{})
|
|
paths, nodes, codes := sched.Missing(0)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
reader, err := ndb.Reader(srcRoot)
|
|
if err != nil {
|
|
t.Fatalf("state is not existent, %#x", srcRoot)
|
|
}
|
|
for len(nodeQueue)+len(codeQueue) > 0 {
|
|
// Sync only half of the scheduled nodes, even those in random order
|
|
if len(codeQueue) > 0 {
|
|
results := make([]trie.CodeSyncResult, 0, len(codeQueue)/2+1)
|
|
for hash := range codeQueue {
|
|
delete(codeQueue, hash)
|
|
|
|
data, err := srcDb.ContractCode(common.Address{}, hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
|
|
|
|
if len(results) >= cap(results) {
|
|
break
|
|
}
|
|
}
|
|
for _, result := range results {
|
|
if err := sched.ProcessCode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
if len(nodeQueue) > 0 {
|
|
results := make([]trie.NodeSyncResult, 0, len(nodeQueue)/2+1)
|
|
for path, element := range nodeQueue {
|
|
delete(nodeQueue, path)
|
|
|
|
owner, inner := trie.ResolvePath([]byte(element.path))
|
|
data, err := reader.Node(owner, inner, element.hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", element.hash)
|
|
}
|
|
results = append(results, trie.NodeSyncResult{Path: path, Data: data})
|
|
|
|
if len(results) >= cap(results) {
|
|
break
|
|
}
|
|
}
|
|
// Feed the retrieved results back and queue new tasks
|
|
for _, result := range results {
|
|
if err := sched.ProcessNode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
batch := dstDb.NewBatch()
|
|
if err := sched.Commit(batch); err != nil {
|
|
t.Fatalf("failed to commit data: %v", err)
|
|
}
|
|
batch.Write()
|
|
|
|
paths, nodes, codes := sched.Missing(0)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Copy the preimages from source db in order to traverse the state.
|
|
srcDb.TrieDB().WritePreimages()
|
|
copyPreimages(srcDisk, dstDb)
|
|
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, ndb.Scheme(), srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that at any point in time during a sync, only complete sub-tries are in
|
|
// the database.
|
|
func TestIncompleteStateSync(t *testing.T) {
|
|
testIncompleteStateSync(t, rawdb.HashScheme)
|
|
testIncompleteStateSync(t, rawdb.PathScheme)
|
|
}
|
|
|
|
func testIncompleteStateSync(t *testing.T, scheme string) {
|
|
// Create a random state to copy
|
|
db, srcDb, ndb, srcRoot, srcAccounts := makeTestState(scheme)
|
|
|
|
// isCodeLookup to save some hashing
|
|
var isCode = make(map[common.Hash]struct{})
|
|
for _, acc := range srcAccounts {
|
|
if len(acc.code) > 0 {
|
|
isCode[crypto.Keccak256Hash(acc.code)] = struct{}{}
|
|
}
|
|
}
|
|
isCode[types.EmptyCodeHash] = struct{}{}
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, nil, ndb.Scheme())
|
|
|
|
var (
|
|
addedCodes []common.Hash
|
|
addedPaths []string
|
|
addedHashes []common.Hash
|
|
)
|
|
reader, err := ndb.Reader(srcRoot)
|
|
if err != nil {
|
|
t.Fatalf("state is not available %x", srcRoot)
|
|
}
|
|
nodeQueue := make(map[string]stateElement)
|
|
codeQueue := make(map[common.Hash]struct{})
|
|
paths, nodes, codes := sched.Missing(1)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
for len(nodeQueue)+len(codeQueue) > 0 {
|
|
// Fetch a batch of state nodes
|
|
if len(codeQueue) > 0 {
|
|
results := make([]trie.CodeSyncResult, 0, len(codeQueue))
|
|
for hash := range codeQueue {
|
|
data, err := srcDb.ContractCode(common.Address{}, hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results = append(results, trie.CodeSyncResult{Hash: hash, Data: data})
|
|
addedCodes = append(addedCodes, hash)
|
|
}
|
|
// Process each of the state nodes
|
|
for _, result := range results {
|
|
if err := sched.ProcessCode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
if len(nodeQueue) > 0 {
|
|
results := make([]trie.NodeSyncResult, 0, len(nodeQueue))
|
|
for path, element := range nodeQueue {
|
|
owner, inner := trie.ResolvePath([]byte(element.path))
|
|
data, err := reader.Node(owner, inner, element.hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", element.hash)
|
|
}
|
|
results = append(results, trie.NodeSyncResult{Path: path, Data: data})
|
|
|
|
if element.hash != srcRoot {
|
|
addedPaths = append(addedPaths, element.path)
|
|
addedHashes = append(addedHashes, element.hash)
|
|
}
|
|
}
|
|
// Process each of the state nodes
|
|
for _, result := range results {
|
|
if err := sched.ProcessNode(result); err != nil {
|
|
t.Fatalf("failed to process result %v", err)
|
|
}
|
|
}
|
|
}
|
|
batch := dstDb.NewBatch()
|
|
if err := sched.Commit(batch); err != nil {
|
|
t.Fatalf("failed to commit data: %v", err)
|
|
}
|
|
batch.Write()
|
|
|
|
// Fetch the next batch to retrieve
|
|
nodeQueue = make(map[string]stateElement)
|
|
codeQueue = make(map[common.Hash]struct{})
|
|
paths, nodes, codes := sched.Missing(1)
|
|
for i, path := range paths {
|
|
nodeQueue[path] = stateElement{
|
|
path: path,
|
|
hash: nodes[i],
|
|
syncPath: trie.NewSyncPath([]byte(path)),
|
|
}
|
|
}
|
|
for _, hash := range codes {
|
|
codeQueue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Copy the preimages from source db in order to traverse the state.
|
|
srcDb.TrieDB().WritePreimages()
|
|
copyPreimages(db, dstDb)
|
|
|
|
// Sanity check that removing any node from the database is detected
|
|
for _, node := range addedCodes {
|
|
val := rawdb.ReadCode(dstDb, node)
|
|
rawdb.DeleteCode(dstDb, node)
|
|
if err := checkStateConsistency(dstDb, ndb.Scheme(), srcRoot); err == nil {
|
|
t.Errorf("trie inconsistency not caught, missing: %x", node)
|
|
}
|
|
rawdb.WriteCode(dstDb, node, val)
|
|
}
|
|
for i, path := range addedPaths {
|
|
owner, inner := trie.ResolvePath([]byte(path))
|
|
hash := addedHashes[i]
|
|
val := rawdb.ReadTrieNode(dstDb, owner, inner, hash, scheme)
|
|
if val == nil {
|
|
t.Error("missing trie node")
|
|
}
|
|
rawdb.DeleteTrieNode(dstDb, owner, inner, hash, scheme)
|
|
if err := checkStateConsistency(dstDb, scheme, srcRoot); err == nil {
|
|
t.Errorf("trie inconsistency not caught, missing: %v", path)
|
|
}
|
|
rawdb.WriteTrieNode(dstDb, owner, inner, hash, val, scheme)
|
|
}
|
|
}
|
|
|
|
func copyPreimages(srcDb, dstDb ethdb.Database) {
|
|
it := srcDb.NewIterator(rawdb.PreimagePrefix, nil)
|
|
defer it.Release()
|
|
|
|
preimages := make(map[common.Hash][]byte)
|
|
for it.Next() {
|
|
hash := it.Key()[len(rawdb.PreimagePrefix):]
|
|
preimages[common.BytesToHash(hash)] = common.CopyBytes(it.Value())
|
|
}
|
|
rawdb.WritePreimages(dstDb, preimages)
|
|
}
|