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Merge pull request #556 from nspcc-dev/optimize-dao-and-things

Browse source 
Optimize dao and things, this set improves 1.4M->1.5M import of 100K blocks
by more than 43%.
This commit is contained in:
Roman Khimov 2019-12-13 22:43:41 +03:00 committed by GitHub
commit 35f7f4137e
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
12 changed files with 323 additions and 141 deletions
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34
pkg/core/blockchain.go
View file

@ -86,7 +86,7 @@ type headersOpFunc func(headerList *HeaderHashList)
func NewBlockchain(s storage.Store, cfg config.ProtocolConfiguration) (*Blockchain, error) {
bc := &Blockchain{
config: cfg,
dao: &dao{store: storage.NewMemCachedStore(s)},
dao: newDao(s),
headersOp: make(chan headersOpFunc),
headersOpDone: make(chan struct{}),
stopCh: make(chan struct{}),
@ -344,7 +344,7 @@ func (bc *Blockchain) processHeader(h *Header, batch storage.Batch, headerList *
// is happening here, quite allot as you can see :). If things are wired together
// and all tests are in place, we can make a more optimized and cleaner implementation.
func (bc *Blockchain) storeBlock(block *Block) error {
cache := &dao{store: storage.NewMemCachedStore(bc.dao.store)}
cache := newCachedDao(bc.dao.store)
if err := cache.StoreAsBlock(block, 0); err != nil {
return err
}
@ -505,7 +505,7 @@ func (bc *Blockchain) storeBlock(block *Block) error {
v.LoadScript(t.Script)
err := v.Run()
if !v.HasFailed() {
_, err := systemInterop.dao.store.Persist()
_, err := systemInterop.dao.Persist()
if err != nil {
return errors.Wrap(err, "failed to persist invocation results")
}
@ -554,7 +554,7 @@ func (bc *Blockchain) storeBlock(block *Block) error {
}
}
}
_, err := cache.store.Persist()
_, err := cache.Persist()
if err != nil {
return err
}
@ -567,7 +567,7 @@ func (bc *Blockchain) storeBlock(block *Block) error {
}
// processOutputs processes transaction outputs.
func processOutputs(tx *transaction.Transaction, dao *dao) error {
func processOutputs(tx *transaction.Transaction, dao *cachedDao) error {
for index, output := range tx.Outputs {
account, err := dao.GetAccountStateOrNew(output.ScriptHash)
if err != nil {
@ -588,7 +588,7 @@ func processOutputs(tx *transaction.Transaction, dao *dao) error {
return nil
}
func processTXWithValidatorsAdd(output *transaction.Output, account *state.Account, dao *dao) error {
func processTXWithValidatorsAdd(output *transaction.Output, account *state.Account, dao *cachedDao) error {
if output.AssetID.Equals(governingTokenTX().Hash()) && len(account.Votes) > 0 {
for _, vote := range account.Votes {
validatorState, err := dao.GetValidatorStateOrNew(vote)
@ -604,7 +604,7 @@ func processTXWithValidatorsAdd(output *transaction.Output, account *state.Accou
return nil
}
func processTXWithValidatorsSubtract(account *state.Account, dao *dao, toSubtract util.Fixed8) error {
func processTXWithValidatorsSubtract(account *state.Account, dao *cachedDao, toSubtract util.Fixed8) error {
for _, vote := range account.Votes {
validator, err := dao.GetValidatorStateOrNew(vote)
if err != nil {
@ -624,7 +624,7 @@ func processTXWithValidatorsSubtract(account *state.Account, dao *dao, toSubtrac
return nil
}
func processValidatorStateDescriptor(descriptor *transaction.StateDescriptor, dao *dao) error {
func processValidatorStateDescriptor(descriptor *transaction.StateDescriptor, dao *cachedDao) error {
publicKey := &keys.PublicKey{}
err := publicKey.DecodeBytes(descriptor.Key)
if err != nil {
@ -645,7 +645,7 @@ func processValidatorStateDescriptor(descriptor *transaction.StateDescriptor, da
return nil
}
func processAccountStateDescriptor(descriptor *transaction.StateDescriptor, dao *dao) error {
func processAccountStateDescriptor(descriptor *transaction.StateDescriptor, dao *cachedDao) error {
hash, err := util.Uint160DecodeBytesBE(descriptor.Key)
if err != nil {
return err
@ -690,7 +690,7 @@ func (bc *Blockchain) persist() error {
err error
)
persisted, err = bc.dao.store.Persist()
persisted, err = bc.dao.Persist()
if err != nil {
return err
}
@ -1156,7 +1156,7 @@ func (bc *Blockchain) GetStandByValidators() (keys.PublicKeys, error) {
// GetValidators returns validators.
// Golang implementation of GetValidators method in C# (https://github.com/neo-project/neo/blob/c64748ecbac3baeb8045b16af0d518398a6ced24/neo/Persistence/Snapshot.cs#L182)
func (bc *Blockchain) GetValidators(txes ...*transaction.Transaction) ([]*keys.PublicKey, error) {
cache := &dao{store: storage.NewMemCachedStore(bc.dao.store)}
cache := newCachedDao(bc.dao.store)
if len(txes) > 0 {
for _, tx := range txes {
// iterate through outputs
@ -1249,14 +1249,10 @@ func (bc *Blockchain) GetValidators(txes ...*transaction.Transaction) ([]*keys.P
for i := 0; i < uniqueSBValidators.Len() && result.Len() < count; i++ {
result = append(result, uniqueSBValidators[i])
}
_, err = cache.store.Persist()
if err != nil {
return nil, err
}
return result, nil
}
func processStateTX(dao *dao, tx *transaction.StateTX) error {
func processStateTX(dao *cachedDao, tx *transaction.StateTX) error {
for _, desc := range tx.Descriptors {
switch desc.Type {
case transaction.Account:
@ -1272,7 +1268,7 @@ func processStateTX(dao *dao, tx *transaction.StateTX) error {
return nil
}
func processEnrollmentTX(dao *dao, tx *transaction.EnrollmentTX) error {
func processEnrollmentTX(dao *cachedDao, tx *transaction.EnrollmentTX) error {
validatorState, err := dao.GetValidatorStateOrNew(&tx.PublicKey)
if err != nil {
return err
@ -1340,8 +1336,8 @@ func (bc *Blockchain) GetScriptHashesForVerifying(t *transaction.Transaction) ([
func (bc *Blockchain) spawnVMWithInterops(interopCtx *interopContext) *vm.VM {
vm := vm.New()
vm.SetScriptGetter(func(hash util.Uint160) []byte {
cs := bc.GetContractState(hash)
if cs == nil {
cs, err := interopCtx.dao.GetContractState(hash)
if err != nil {
return nil
}
return cs.Script

82
pkg/core/cacheddao.go Normal file
View file

@ -0,0 +1,82 @@
package core
import (
"github.com/CityOfZion/neo-go/pkg/core/state"
"github.com/CityOfZion/neo-go/pkg/core/storage"
"github.com/CityOfZion/neo-go/pkg/util"
)
// cachedDao is a data access object that mimics dao, but has a write cache
// for accounts and read cache for contracts. These are the most frequently used
// objects in the storeBlock().
type cachedDao struct {
dao
accounts map[util.Uint160]*state.Account
contracts map[util.Uint160]*state.Contract
}
// newCachedDao returns new cachedDao wrapping around given backing store.
func newCachedDao(backend storage.Store) *cachedDao {
accs := make(map[util.Uint160]*state.Account)
ctrs := make(map[util.Uint160]*state.Contract)
return &cachedDao{*newDao(backend), accs, ctrs}
}
// GetAccountStateOrNew retrieves Account from cache or underlying Store
// or creates a new one if it doesn't exist.
func (cd *cachedDao) GetAccountStateOrNew(hash util.Uint160) (*state.Account, error) {
if cd.accounts[hash] != nil {
return cd.accounts[hash], nil
}
return cd.dao.GetAccountStateOrNew(hash)
}
// GetAccountState retrieves Account from cache or underlying Store.
func (cd *cachedDao) GetAccountState(hash util.Uint160) (*state.Account, error) {
if cd.accounts[hash] != nil {
return cd.accounts[hash], nil
}
return cd.dao.GetAccountState(hash)
}
// PutAccountState saves given Account in the cache.
func (cd *cachedDao) PutAccountState(as *state.Account) error {
cd.accounts[as.ScriptHash] = as
return nil
}
// GetContractState returns contract state from cache or underlying Store.
func (cd *cachedDao) GetContractState(hash util.Uint160) (*state.Contract, error) {
if cd.contracts[hash] != nil {
return cd.contracts[hash], nil
}
cs, err := cd.dao.GetContractState(hash)
if err == nil {
cd.contracts[hash] = cs
}
return cs, err
}
// PutContractState puts given contract state into the given store.
func (cd *cachedDao) PutContractState(cs *state.Contract) error {
cd.contracts[cs.ScriptHash()] = cs
return cd.dao.PutContractState(cs)
}
// DeleteContractState deletes given contract state in cache and backing Store.
func (cd *cachedDao) DeleteContractState(hash util.Uint160) error {
cd.contracts[hash] = nil
return cd.dao.DeleteContractState(hash)
}
// Persist flushes all the changes made into the (supposedly) persistent
// underlying store.
func (cd *cachedDao) Persist() (int, error) {
for sc := range cd.accounts {
err := cd.dao.PutAccountState(cd.accounts[sc])
if err != nil {
return 0, err
}
}
return cd.dao.Persist()
}

83
pkg/core/cacheddao_test.go Normal file
View file

@ -0,0 +1,83 @@
package core
import (
"testing"
"github.com/CityOfZion/neo-go/pkg/core/state"
"github.com/CityOfZion/neo-go/pkg/core/storage"
"github.com/CityOfZion/neo-go/pkg/crypto/hash"
"github.com/CityOfZion/neo-go/pkg/internal/random"
"github.com/CityOfZion/neo-go/pkg/smartcontract"
"github.com/stretchr/testify/require"
)
func TestCachedDaoAccounts(t *testing.T) {
store := storage.NewMemoryStore()
// Persistent DAO to check for backing storage.
pdao := newDao(store)
// Cached DAO.
cdao := newCachedDao(store)
hash := random.Uint160()
_, err := cdao.GetAccountState(hash)
require.NotNil(t, err)
acc, err := cdao.GetAccountStateOrNew(hash)
require.Nil(t, err)
_, err = pdao.GetAccountState(hash)
require.NotNil(t, err)
acc.Version = 42
require.NoError(t, cdao.PutAccountState(acc))
_, err = pdao.GetAccountState(hash)
require.NotNil(t, err)
acc2, err := cdao.GetAccountState(hash)
require.Nil(t, err)
require.Equal(t, acc, acc2)
acc2, err = cdao.GetAccountStateOrNew(hash)
require.Nil(t, err)
require.Equal(t, acc, acc2)
_, err = cdao.Persist()
require.Nil(t, err)
acct, err := pdao.GetAccountState(hash)
require.Nil(t, err)
require.Equal(t, acc, acct)
}
func TestCachedDaoContracts(t *testing.T) {
store := storage.NewMemoryStore()
dao := newCachedDao(store)
script := []byte{0xde, 0xad, 0xbe, 0xef}
sh := hash.Hash160(script)
_, err := dao.GetContractState(sh)
require.NotNil(t, err)
cs := &state.Contract{}
cs.Name = "test"
cs.Script = script
cs.ParamList = []smartcontract.ParamType{1, 2}
require.NoError(t, dao.PutContractState(cs))
cs2, err := dao.GetContractState(sh)
require.Nil(t, err)
require.Equal(t, cs, cs2)
_, err = dao.Persist()
require.Nil(t, err)
dao2 := newCachedDao(store)
cs2, err = dao2.GetContractState(sh)
require.Nil(t, err)
require.Equal(t, cs, cs2)
require.NoError(t, dao.DeleteContractState(sh))
cs2, err = dao2.GetContractState(sh)
require.Nil(t, err)
require.Equal(t, cs, cs2)
_, err = dao.GetContractState(sh)
require.NotNil(t, err)
}

22
pkg/core/dao.go
View file

@ -19,6 +19,10 @@ type dao struct {
store *storage.MemCachedStore
}
func newDao(backend storage.Store) *dao {
return &dao{store: storage.NewMemCachedStore(backend)}
}
// GetAndDecode performs get operation and decoding with serializable structures.
func (dao *dao) GetAndDecode(entity io.Serializable, key []byte) error {
entityBytes, err := dao.store.Get(key)
@ -51,9 +55,6 @@ func (dao *dao) GetAccountStateOrNew(hash util.Uint160) (*state.Account, error)
return nil, err
}
account = state.NewAccount(hash)
if err = dao.PutAccountState(account); err != nil {
return nil, err
}
}
return account, nil
}
@ -147,9 +148,6 @@ func (dao *dao) GetUnspentCoinStateOrNew(hash util.Uint256) (*UnspentCoinState,
unspent = &UnspentCoinState{
states: []state.Coin{},
}
if err = dao.PutUnspentCoinState(hash, unspent); err != nil {
return nil, err
}
}
return unspent, nil
}
@ -185,9 +183,6 @@ func (dao *dao) GetSpentCoinsOrNew(hash util.Uint256) (*SpentCoinState, error) {
spent = &SpentCoinState{
items: make(map[uint16]uint32),
}
if err = dao.PutSpentCoinState(hash, spent); err != nil {
return nil, err
}
}
return spent, nil
}
@ -227,9 +222,6 @@ func (dao *dao) GetValidatorStateOrNew(publicKey *keys.PublicKey) (*state.Valida
return nil, err
}
validatorState = &state.Validator{PublicKey: publicKey}
if err = dao.PutValidatorState(validatorState); err != nil {
return nil, err
}
}
return validatorState, nil
@ -551,3 +543,9 @@ func (dao *dao) IsDoubleSpend(tx *transaction.Transaction) bool {
}
return false
}
// Persist flushes all the changes made into the (supposedly) persistent
// underlying store.
func (dao *dao) Persist() (int, error) {
return dao.store.Persist()
}

78
pkg/core/dao_test.go
View file

@ -15,7 +15,7 @@ import (
)
func TestPutGetAndDecode(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
serializable := &TestSerializable{field: random.String(4)}
hash := []byte{1}
err := dao.Put(serializable, hash)
@ -40,18 +40,15 @@ func (t *TestSerializable) DecodeBinary(reader *io.BinReader) {
}
func TestGetAccountStateOrNew_New(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint160()
createdAccount, err := dao.GetAccountStateOrNew(hash)
require.NoError(t, err)
require.NotNil(t, createdAccount)
gotAccount, err := dao.GetAccountState(hash)
require.NoError(t, err)
require.Equal(t, createdAccount, gotAccount)
}
func TestPutAndGetAccountStateOrNew(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint160()
accountState := &state.Account{ScriptHash: hash}
err := dao.PutAccountState(accountState)
@ -62,7 +59,7 @@ func TestPutAndGetAccountStateOrNew(t *testing.T) {
}
func TestPutAndGetAssetState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
id := random.Uint256()
assetState := &state.Asset{ID: id, Owner: keys.PublicKey{}}
err := dao.PutAssetState(assetState)
@ -73,8 +70,8 @@ func TestPutAndGetAssetState(t *testing.T) {
}
func TestPutAndGetContractState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
contractState := &state.Contract{Script: []byte{}, ParamList:[]smartcontract.ParamType{}}
dao := newDao(storage.NewMemoryStore())
contractState := &state.Contract{Script: []byte{}, ParamList: []smartcontract.ParamType{}}
hash := contractState.ScriptHash()
err := dao.PutContractState(contractState)
require.NoError(t, err)
@ -84,8 +81,8 @@ func TestPutAndGetContractState(t *testing.T) {
}
func TestDeleteContractState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
contractState := &state.Contract{Script: []byte{}, ParamList:[]smartcontract.ParamType{}}
dao := newDao(storage.NewMemoryStore())
contractState := &state.Contract{Script: []byte{}, ParamList: []smartcontract.ParamType{}}
hash := contractState.ScriptHash()
err := dao.PutContractState(contractState)
require.NoError(t, err)
@ -97,18 +94,15 @@ func TestDeleteContractState(t *testing.T) {
}
func TestGetUnspentCoinStateOrNew_New(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
unspentCoinState, err := dao.GetUnspentCoinStateOrNew(hash)
require.NoError(t, err)
require.NotNil(t, unspentCoinState)
gotUnspentCoinState, err := dao.GetUnspentCoinState(hash)
require.NoError(t, err)
require.Equal(t, unspentCoinState, gotUnspentCoinState)
}
func TestGetUnspentCoinState_Err(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
gotUnspentCoinState, err := dao.GetUnspentCoinState(hash)
require.Error(t, err)
@ -116,9 +110,9 @@ func TestGetUnspentCoinState_Err(t *testing.T) {
}
func TestPutGetUnspentCoinState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
unspentCoinState := &UnspentCoinState{states:[]state.Coin{}}
unspentCoinState := &UnspentCoinState{states: []state.Coin{}}
err := dao.PutUnspentCoinState(hash, unspentCoinState)
require.NoError(t, err)
gotUnspentCoinState, err := dao.GetUnspentCoinState(hash)
@ -127,20 +121,17 @@ func TestPutGetUnspentCoinState(t *testing.T) {
}
func TestGetSpentCoinStateOrNew_New(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
spentCoinState, err := dao.GetSpentCoinsOrNew(hash)
require.NoError(t, err)
require.NotNil(t, spentCoinState)
gotSpentCoinState, err := dao.GetSpentCoinState(hash)
require.NoError(t, err)
require.Equal(t, spentCoinState, gotSpentCoinState)
}
func TestPutAndGetSpentCoinState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
spentCoinState := &SpentCoinState{items:make(map[uint16]uint32)}
spentCoinState := &SpentCoinState{items: make(map[uint16]uint32)}
err := dao.PutSpentCoinState(hash, spentCoinState)
require.NoError(t, err)
gotSpentCoinState, err := dao.GetSpentCoinState(hash)
@ -149,7 +140,7 @@ func TestPutAndGetSpentCoinState(t *testing.T) {
}
func TestGetSpentCoinState_Err(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
spentCoinState, err := dao.GetSpentCoinState(hash)
require.Error(t, err)
@ -157,9 +148,9 @@ func TestGetSpentCoinState_Err(t *testing.T) {
}
func TestDeleteSpentCoinState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
spentCoinState := &SpentCoinState{items:make(map[uint16]uint32)}
spentCoinState := &SpentCoinState{items: make(map[uint16]uint32)}
err := dao.PutSpentCoinState(hash, spentCoinState)
require.NoError(t, err)
err = dao.DeleteSpentCoinState(hash)
@ -170,18 +161,15 @@ func TestDeleteSpentCoinState(t *testing.T) {
}
func TestGetValidatorStateOrNew_New(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
publicKey := &keys.PublicKey{}
validatorState, err := dao.GetValidatorStateOrNew(publicKey)
require.NoError(t, err)
require.NotNil(t, validatorState)
gotValidatorState, err := dao.GetValidatorState(publicKey)
require.NoError(t, err)
require.Equal(t, validatorState, gotValidatorState)
}
func TestPutGetValidatorState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
publicKey := &keys.PublicKey{}
validatorState := &state.Validator{
PublicKey: publicKey,
@ -196,7 +184,7 @@ func TestPutGetValidatorState(t *testing.T) {
}
func TestDeleteValidatorState(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
publicKey := &keys.PublicKey{}
validatorState := &state.Validator{
PublicKey: publicKey,
@ -213,7 +201,7 @@ func TestDeleteValidatorState(t *testing.T) {
}
func TestGetValidators(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
publicKey := &keys.PublicKey{}
validatorState := &state.Validator{
PublicKey: publicKey,
@ -228,9 +216,9 @@ func TestGetValidators(t *testing.T) {
}
func TestPutGetAppExecResult(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
appExecResult := &state.AppExecResult{TxHash: hash, Events:[]state.NotificationEvent{}}
appExecResult := &state.AppExecResult{TxHash: hash, Events: []state.NotificationEvent{}}
err := dao.PutAppExecResult(appExecResult)
require.NoError(t, err)
gotAppExecResult, err := dao.GetAppExecResult(hash)
@ -239,7 +227,7 @@ func TestPutGetAppExecResult(t *testing.T) {
}
func TestPutGetStorageItem(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint160()
key := []byte{0}
storageItem := &state.StorageItem{Value: []uint8{}}
@ -250,7 +238,7 @@ func TestPutGetStorageItem(t *testing.T) {
}
func TestDeleteStorageItem(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint160()
key := []byte{0}
storageItem := &state.StorageItem{Value: []uint8{}}
@ -263,7 +251,7 @@ func TestDeleteStorageItem(t *testing.T) {
}
func TestGetBlock_NotExists(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
hash := random.Uint256()
block, err := dao.GetBlock(hash)
require.Error(t, err)
@ -271,7 +259,7 @@ func TestGetBlock_NotExists(t *testing.T) {
}
func TestPutGetBlock(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
block := &Block{
BlockBase: BlockBase{
Script: transaction.Witness{
@ -289,14 +277,14 @@ func TestPutGetBlock(t *testing.T) {
}
func TestGetVersion_NoVersion(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
version, err := dao.GetVersion()
require.Error(t, err)
require.Equal(t, "", version)
}
func TestGetVersion(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
err := dao.PutVersion("testVersion")
require.NoError(t, err)
version, err := dao.GetVersion()
@ -305,14 +293,14 @@ func TestGetVersion(t *testing.T) {
}
func TestGetCurrentHeaderHeight_NoHeader(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
height, err := dao.GetCurrentBlockHeight()
require.Error(t, err)
require.Equal(t, uint32(0), height)
}
func TestGetCurrentHeaderHeight_Store(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
block := &Block{
BlockBase: BlockBase{
Script: transaction.Witness{
@ -329,7 +317,7 @@ func TestGetCurrentHeaderHeight_Store(t *testing.T) {
}
func TestStoreAsTransaction(t *testing.T) {
dao := &dao{store: storage.NewMemCachedStore(storage.NewMemoryStore())}
dao := newDao(storage.NewMemoryStore())
tx := &transaction.Transaction{}
hash := tx.Hash()
err := dao.StoreAsTransaction(tx, 0)

41
pkg/core/interop_neo.go
View file

@ -172,8 +172,8 @@ func (ic *interopContext) txGetUnspentCoins(v *vm.VM) error {
if !ok {
return errors.New("value is not a transaction")
}
ucs := ic.bc.GetUnspentCoinState(tx.Hash())
if ucs == nil {
ucs, err := ic.dao.GetUnspentCoinState(tx.Hash())
if err != nil {
return errors.New("no unspent coin state found")
}
v.Estack().PushVal(vm.NewInteropItem(ucs))
@ -200,10 +200,7 @@ func (ic *interopContext) txGetWitnesses(v *vm.VM) error {
// bcGetValidators returns validators.
func (ic *interopContext) bcGetValidators(v *vm.VM) error {
validators, err := ic.bc.GetValidators()
if err != nil {
return err
}
validators := ic.dao.GetValidators()
v.Estack().PushVal(validators)
return nil
}
@ -315,9 +312,9 @@ func (ic *interopContext) bcGetAccount(v *vm.VM) error {
if err != nil {
return err
}
acc := ic.bc.GetAccountState(acchash)
if acc == nil {
acc = state.NewAccount(acchash)
acc, err := ic.dao.GetAccountStateOrNew(acchash)
if err != nil {
return err
}
v.Estack().PushVal(vm.NewInteropItem(acc))
return nil
@ -330,8 +327,8 @@ func (ic *interopContext) bcGetAsset(v *vm.VM) error {
if err != nil {
return err
}
as := ic.bc.GetAssetState(ashash)
if as == nil {
as, err := ic.dao.GetAssetState(ashash)
if err != nil {
return errors.New("asset not found")
}
v.Estack().PushVal(vm.NewInteropItem(as))
@ -394,8 +391,8 @@ func (ic *interopContext) accountIsStandard(v *vm.VM) error {
if err != nil {
return err
}
contract := ic.bc.GetContractState(acchash)
res := contract == nil || vm.IsStandardContract(contract.Script)
contract, err := ic.dao.GetContractState(acchash)
res := err != nil || vm.IsStandardContract(contract.Script)
v.Estack().PushVal(res)
return nil
}
@ -413,7 +410,7 @@ func (ic *interopContext) storageFind(v *vm.VM) error {
return err
}
prefix := string(v.Estack().Pop().Bytes())
siMap, err := ic.bc.GetStorageItems(stc.ScriptHash)
siMap, err := ic.dao.GetStorageItems(stc.ScriptHash)
if err != nil {
return err
}
@ -488,8 +485,8 @@ func (ic *interopContext) contractCreate(v *vm.VM) error {
if err != nil {
return nil
}
contract := ic.bc.GetContractState(newcontract.ScriptHash())
if contract == nil {
contract, err := ic.dao.GetContractState(newcontract.ScriptHash())
if err != nil {
contract = newcontract
err := ic.dao.PutContractState(contract)
if err != nil {
@ -528,8 +525,8 @@ func (ic *interopContext) contractMigrate(v *vm.VM) error {
if err != nil {
return nil
}
contract := ic.bc.GetContractState(newcontract.ScriptHash())
if contract == nil {
contract, err := ic.dao.GetContractState(newcontract.ScriptHash())
if err != nil {
contract = newcontract
err := ic.dao.PutContractState(contract)
if err != nil {
@ -537,7 +534,7 @@ func (ic *interopContext) contractMigrate(v *vm.VM) error {
}
if contract.HasStorage() {
hash := getContextScriptHash(v, 0)
siMap, err := ic.bc.GetStorageItems(hash)
siMap, err := ic.dao.GetStorageItems(hash)
if err != nil {
return err
}
@ -729,8 +726,8 @@ func (ic *interopContext) assetRenew(v *vm.VM) error {
}
years := byte(v.Estack().Pop().BigInt().Int64())
// Not sure why C# code regets an asset from the Store, but we also do it.
asset := ic.bc.GetAssetState(as.ID)
if asset == nil {
asset, err := ic.dao.GetAssetState(as.ID)
if err != nil {
return errors.New("can't renew non-existent asset")
}
if asset.Expiration < ic.bc.BlockHeight()+1 {
@ -741,7 +738,7 @@ func (ic *interopContext) assetRenew(v *vm.VM) error {
expiration = math.MaxUint32
}
asset.Expiration = uint32(expiration)
err := ic.dao.PutAssetState(asset)
err = ic.dao.PutAssetState(asset)
if err != nil {
return gherr.Wrap(err, "failed to store asset")
}

26
pkg/core/interop_system.go
View file

@ -68,8 +68,8 @@ func (ic *interopContext) bcGetContract(v *vm.VM) error {
if err != nil {
return err
}
cs := ic.bc.GetContractState(hash)
if cs == nil {
cs, err := ic.dao.GetContractState(hash)
if err != nil {
v.Estack().PushVal([]byte{})
} else {
v.Estack().PushVal(vm.NewInteropItem(cs))
@ -100,18 +100,18 @@ func (ic *interopContext) bcGetHeight(v *vm.VM) error {
// getTransactionAndHeight gets parameter from the vm evaluation stack and
// returns transaction and its height if it's present in the blockchain.
func getTransactionAndHeight(bc Blockchainer, v *vm.VM) (*transaction.Transaction, uint32, error) {
func getTransactionAndHeight(cd *cachedDao, v *vm.VM) (*transaction.Transaction, uint32, error) {
hashbytes := v.Estack().Pop().Bytes()
hash, err := util.Uint256DecodeBytesLE(hashbytes)
if err != nil {
return nil, 0, err
}
return bc.GetTransaction(hash)
return cd.GetTransaction(hash)
}
// bcGetTransaction returns transaction.
func (ic *interopContext) bcGetTransaction(v *vm.VM) error {
tx, _, err := getTransactionAndHeight(ic.bc, v)
tx, _, err := getTransactionAndHeight(ic.dao, v)
if err != nil {
return err
}
@ -121,7 +121,7 @@ func (ic *interopContext) bcGetTransaction(v *vm.VM) error {
// bcGetTransactionHeight returns transaction height.
func (ic *interopContext) bcGetTransactionHeight(v *vm.VM) error {
_, h, err := getTransactionAndHeight(ic.bc, v)
_, h, err := getTransactionAndHeight(ic.dao, v)
if err != nil {
return err
}
@ -254,7 +254,7 @@ func (ic *interopContext) engineGetScriptContainer(v *vm.VM) error {
func getContextScriptHash(v *vm.VM, n int) util.Uint160 {
ctxIface := v.Istack().Peek(n).Value()
ctx := ctxIface.(*vm.Context)
return hash.Hash160(ctx.Program())
return ctx.ScriptHash()
}
// pushContextScriptHash pushes to evaluation stack the script hash of the
@ -383,8 +383,8 @@ func (ic *interopContext) runtimeDeserialize(v *vm.VM) error {
}
*/
func (ic *interopContext) checkStorageContext(stc *StorageContext) error {
contract := ic.bc.GetContractState(stc.ScriptHash)
if contract == nil {
contract, err := ic.dao.GetContractState(stc.ScriptHash)
if err != nil {
return errors.New("no contract found")
}
if !contract.HasStorage() {
@ -535,16 +535,16 @@ func (ic *interopContext) contractDestroy(v *vm.VM) error {
return errors.New("can't destroy contract when not triggered by application")
}
hash := getContextScriptHash(v, 0)
cs := ic.bc.GetContractState(hash)
if cs == nil {
cs, err := ic.dao.GetContractState(hash)
if err != nil {
return nil
}
err := ic.dao.DeleteContractState(hash)
err = ic.dao.DeleteContractState(hash)
if err != nil {
return err
}
if cs.HasStorage() {
siMap, err := ic.bc.GetStorageItems(hash)
siMap, err := ic.dao.GetStorageItems(hash)
if err != nil {
return err
}

4
pkg/core/interops.go
View file

@ -19,12 +19,12 @@ type interopContext struct {
trigger byte
block *Block
tx *transaction.Transaction
dao *dao
dao *cachedDao
notifications []state.NotificationEvent
}
func newInteropContext(trigger byte, bc Blockchainer, s storage.Store, block *Block, tx *transaction.Transaction) *interopContext {
dao := &dao{store: storage.NewMemCachedStore(s)}
dao := newCachedDao(s)
nes := make([]state.NotificationEvent, 0)
return &interopContext{bc, trigger, block, tx, dao, nes}
}

9
pkg/core/mem_pool.go
View file

@ -269,12 +269,15 @@ func min(sortedPool PoolItems) *PoolItem {
// GetVerifiedTransactions returns a slice of Input from all the transactions in the memory pool
// whose hash is not included in excludedHashes.
func (mp *MemPool) GetVerifiedTransactions() []*transaction.Transaction {
var t []*transaction.Transaction
mp.lock.RLock()
defer mp.lock.RUnlock()
var t = make([]*transaction.Transaction, len(mp.unsortedTxn))
var i int
for _, p := range mp.unsortedTxn {
t = append(t, p.txn)
t[i] = p.txn
i++
}
return t

12
pkg/core/state/account.go
View file

@ -49,8 +49,11 @@ func (s *Account) DecodeBinary(br *io.BinReader) {
for i := 0; i < int(lenBalances); i++ {
key := util.Uint256{}
br.ReadBytes(key[:])
ubs := make([]UnspentBalance, 0)
br.ReadArray(&ubs)
len := int(br.ReadVarUint())
ubs := make([]UnspentBalance, len)
for j := 0; j < len; j++ {
ubs[j].DecodeBinary(br)
}
s.Balances[key] = ubs
}
}
@ -65,7 +68,10 @@ func (s *Account) EncodeBinary(bw *io.BinWriter) {
bw.WriteVarUint(uint64(len(s.Balances)))
for k, v := range s.Balances {
bw.WriteBytes(k[:])
bw.WriteArray(v)
bw.WriteVarUint(uint64(len(v)))
for i := range v {
v[i].EncodeBinary(bw)
}
}
}

69
pkg/vm/context.go
View file

@ -1,9 +1,11 @@
package vm
import (
"encoding/binary"
"errors"
"github.com/CityOfZion/neo-go/pkg/io"
"github.com/CityOfZion/neo-go/pkg/crypto/hash"
"github.com/CityOfZion/neo-go/pkg/util"
"github.com/CityOfZion/neo-go/pkg/vm/opcode"
)
@ -29,8 +31,13 @@ type Context struct {
// Alt stack pointer.
astack *Stack
// Script hash of the prog.
scriptHash util.Uint160
}
var errNoInstParam = errors.New("failed to read instruction parameter")
// NewContext returns a new Context object.
func NewContext(b []byte) *Context {
return &Context{
@ -44,33 +51,44 @@ func NewContext(b []byte) *Context {
// its invocation the instruction pointer points to the instruction being
// returned.
func (c *Context) Next() (opcode.Opcode, []byte, error) {
var err error
c.ip = c.nextip
if c.ip >= len(c.prog) {
return opcode.RET, nil, nil
}
r := io.NewBinReaderFromBuf(c.prog[c.ip:])
var instrbyte = r.ReadB()
var instrbyte = c.prog[c.ip]
instr := opcode.Opcode(instrbyte)
c.nextip++
var numtoread int
switch instr {
case opcode.PUSHDATA1, opcode.SYSCALL:
var n = r.ReadB()
numtoread = int(n)
c.nextip++
case opcode.PUSHDATA2:
var n = r.ReadU16LE()
numtoread = int(n)
c.nextip += 2
case opcode.PUSHDATA4:
var n = r.ReadU32LE()
if n > MaxItemSize {
return instr, nil, errors.New("parameter is too big")
if c.nextip >= len(c.prog) {
err = errNoInstParam
} else {
numtoread = int(c.prog[c.nextip])
c.nextip++
}
case opcode.PUSHDATA2:
if c.nextip+1 >= len(c.prog) {
err = errNoInstParam
} else {
numtoread = int(binary.LittleEndian.Uint16(c.prog[c.nextip : c.nextip+2]))
c.nextip += 2
}
case opcode.PUSHDATA4:
if c.nextip+3 >= len(c.prog) {
err = errNoInstParam
} else {
var n = binary.LittleEndian.Uint32(c.prog[c.nextip : c.nextip+4])
if n > MaxItemSize {
return instr, nil, errors.New("parameter is too big")
}
numtoread = int(n)
c.nextip += 4
}
numtoread = int(n)
c.nextip += 4
case opcode.JMP, opcode.JMPIF, opcode.JMPIFNOT, opcode.CALL, opcode.CALLED, opcode.CALLEDT:
numtoread = 2
case opcode.CALLI:
@ -87,11 +105,14 @@ func (c *Context) Next() (opcode.Opcode, []byte, error) {
return instr, nil, nil
}
}
parameter := make([]byte, numtoread)
r.ReadBytes(parameter)
if r.Err != nil {
return instr, nil, errors.New("failed to read instruction parameter")
if c.nextip+numtoread-1 >= len(c.prog) {
err = errNoInstParam
}
if err != nil {
return instr, nil, err
}
parameter := make([]byte, numtoread)
copy(parameter, c.prog[c.nextip:c.nextip+numtoread])
c.nextip += numtoread
return instr, parameter, nil
}
@ -125,6 +146,14 @@ func (c *Context) Program() []byte {
return c.prog
}
// ScriptHash returns a hash of the script in the current context.
func (c *Context) ScriptHash() util.Uint160 {
if c.scriptHash.Equals(util.Uint160{}) {
c.scriptHash = hash.Hash160(c.prog)
}
return c.scriptHash
}
// Value implements StackItem interface.
func (c *Context) Value() interface{} {
return c

4
pkg/vm/vm.go
View file

@ -129,8 +129,8 @@ func (v *VM) RegisterInteropFunc(name string, f InteropFunc, price int) {
// the VM. Effectively it's a batched version of RegisterInteropFunc.
func (v *VM) RegisterInteropFuncs(interops map[string]InteropFuncPrice) {
// We allow reregistration here.
for name, funPrice := range interops {
v.interop[name] = funPrice
for name := range interops {
v.interop[name] = interops[name]
}
}