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dao: drop GetStorageItems* APIs

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They're just adding another useless caching layer to the Seek.
This commit is contained in:
Roman Khimov 2022-03-31 18:14:11 +03:00
parent 60375e9db3
commit c12a3b71d4
7 changed files with 70 additions and 132 deletions
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23
pkg/core/dao/dao.go
View file

@ -310,29 +310,6 @@ func (dao *Simple) DeleteStorageItem(id int32, key []byte) {
dao.Store.Delete(stKey)
}
// GetStorageItems returns all storage items for a given id.
func (dao *Simple) GetStorageItems(id int32) ([]state.StorageItemWithKey, error) {
return dao.GetStorageItemsWithPrefix(id, nil)
}
// GetStorageItemsWithPrefix returns all storage items with given id for a
// given scripthash.
func (dao *Simple) GetStorageItemsWithPrefix(id int32, prefix []byte) ([]state.StorageItemWithKey, error) {
var siArr []state.StorageItemWithKey
saveToArr := func(k, v []byte) bool {
// Cut prefix and hash.
// #1468, but don't need to copy here, because it is done by Store.
siArr = append(siArr, state.StorageItemWithKey{
Key: k,
Item: state.StorageItem(v),
})
return true
}
dao.Seek(id, storage.SeekRange{Prefix: prefix}, saveToArr)
return siArr, nil
}
// Seek executes f for all storage items matching a given `rng` (matching given prefix and
// starting from the point specified). If key or value is to be used outside of f, they
// may not be copied. Seek continues iterating until false is returned from f.

39
pkg/core/native/designate.go
View file

@ -16,6 +16,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/stateroot"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
@ -253,35 +254,31 @@ func (s *Designate) GetDesignatedByRole(d *dao.Simple, r noderoles.Role, index u
return val.nodes.Copy(), val.height, nil
}
}
kvs, err := d.GetStorageItemsWithPrefix(s.ID, []byte{byte(r)})
if err != nil {
return nil, 0, err
}
var (
ns NodeList
bestIndex uint32
resSi state.StorageItem
resVal []byte
start = make([]byte, 4)
)
// kvs are sorted by key (BE index bytes) in ascending way, so iterate backwards to get the latest designated.
for i := len(kvs) - 1; i >= 0; i-- {
kv := kvs[i]
if len(kv.Key) < 4 {
continue
}
siInd := binary.BigEndian.Uint32(kv.Key)
if siInd <= index {
bestIndex = siInd
resSi = kv.Item
break
}
}
if resSi != nil {
err = stackitem.DeserializeConvertible(resSi, &ns)
binary.BigEndian.PutUint32(start, index)
d.Seek(s.ID, storage.SeekRange{
Prefix: []byte{byte(r)},
Start: start,
Backwards: true,
}, func(k, v []byte) bool {
bestIndex = binary.BigEndian.Uint32(k) // If len(k) < 4 the DB is broken and it deserves a panic.
resVal = v
// Take just the latest item, it's the one we need.
return false
})
if resVal != nil {
err := stackitem.DeserializeConvertible(resVal, &ns)
if err != nil {
return nil, 0, err
}
}
return keys.PublicKeys(ns), bestIndex, err
return keys.PublicKeys(ns), bestIndex, nil
}
func (s *Designate) designateAsRole(ic *interop.Context, args []stackitem.Item) stackitem.Item {

12
pkg/core/native/management.go
View file

@ -388,13 +388,11 @@ func (m *Management) Destroy(d *dao.Simple, hash util.Uint160) error {
key := MakeContractKey(hash)
d.DeleteStorageItem(m.ID, key)
d.DeleteContractID(contract.ID)
siArr, err := d.GetStorageItems(contract.ID)
if err != nil {
return err
}
for _, kv := range siArr {
d.DeleteStorageItem(contract.ID, []byte(kv.Key))
}
d.Seek(contract.ID, storage.SeekRange{}, func(k, _ []byte) bool {
d.DeleteStorageItem(contract.ID, k)
return true
})
m.markUpdated(hash)
return nil
}

74
pkg/core/native/native_neo.go
View file

@ -255,11 +255,7 @@ func (n *NEO) InitializeCache(bc interop.Ledger, d *dao.Simple) error {
return err
}
gr, err := n.getSortedGASRecordFromDAO(d)
if err != nil {
return err
}
n.gasPerBlock.Store(gr)
n.gasPerBlock.Store(n.getSortedGASRecordFromDAO(d))
n.gasPerBlockChanged.Store(false)
return nil
@ -375,11 +371,7 @@ func (n *NEO) PostPersist(ic *interop.Context) error {
}
}
if n.gasPerBlockChanged.Load().(bool) {
gr, err := n.getSortedGASRecordFromDAO(ic.DAO)
if err != nil {
panic(err)
}
n.gasPerBlock.Store(gr)
n.gasPerBlock.Store(n.getSortedGASRecordFromDAO(ic.DAO))
n.gasPerBlockChanged.Store(false)
}
@ -495,35 +487,23 @@ func (n *NEO) getGASPerBlock(ic *interop.Context, _ []stackitem.Item) stackitem.
return stackitem.NewBigInteger(gas)
}
func (n *NEO) getSortedGASRecordFromDAO(d *dao.Simple) (gasRecord, error) {
grArr, err := d.GetStorageItemsWithPrefix(n.ID, []byte{prefixGASPerBlock})
if err != nil {
return gasRecord{}, fmt.Errorf("failed to get gas records from storage: %w", err)
}
var gr = make(gasRecord, len(grArr))
for i, kv := range grArr {
indexBytes, gasValue := kv.Key, kv.Item
gr[i] = gasIndexPair{
Index: binary.BigEndian.Uint32([]byte(indexBytes)),
GASPerBlock: *bigint.FromBytes(gasValue),
}
}
// GAS records should be sorted by index, but GetStorageItemsWithPrefix returns
// values sorted by BE bytes of index, so we're OK with that.
return gr, nil
func (n *NEO) getSortedGASRecordFromDAO(d *dao.Simple) gasRecord {
var gr = make(gasRecord, 0)
d.Seek(n.ID, storage.SeekRange{Prefix: []byte{prefixGASPerBlock}}, func(k, v []byte) bool {
gr = append(gr, gasIndexPair{
Index: binary.BigEndian.Uint32(k),
GASPerBlock: *bigint.FromBytes(v),
})
return true
})
return gr
}
// GetGASPerBlock returns gas generated for block with provided index.
func (n *NEO) GetGASPerBlock(d *dao.Simple, index uint32) *big.Int {
var (
gr gasRecord
err error
)
var gr gasRecord
if n.gasPerBlockChanged.Load().(bool) {
gr, err = n.getSortedGASRecordFromDAO(d)
if err != nil {
panic(err)
}
gr = n.getSortedGASRecordFromDAO(d)
} else {
gr = n.gasPerBlock.Load().(gasRecord)
}
@ -665,17 +645,11 @@ func (n *NEO) CalculateNEOHolderReward(d *dao.Simple, value *big.Int, start, end
} else if value.Sign() < 0 {
return nil, errors.New("negative value")
}
var (
gr gasRecord
err error
)
var gr gasRecord
if !n.gasPerBlockChanged.Load().(bool) {
gr = n.gasPerBlock.Load().(gasRecord)
} else {
gr, err = n.getSortedGASRecordFromDAO(d)
if err != nil {
return nil, err
}
gr = n.getSortedGASRecordFromDAO(d)
}
var sum, tmp big.Int
for i := len(gr) - 1; i >= 0; i-- {
@ -847,17 +821,15 @@ func (n *NEO) ModifyAccountVotes(acc *state.NEOBalance, d *dao.Simple, value *bi
}
func (n *NEO) getCandidates(d *dao.Simple, sortByKey bool) ([]keyWithVotes, error) {
siArr, err := d.GetStorageItemsWithPrefix(n.ID, []byte{prefixCandidate})
if err != nil {
return nil, err
}
arr := make([]keyWithVotes, 0, len(siArr))
for _, kv := range siArr {
c := new(candidate).FromBytes(kv.Item)
arr := make([]keyWithVotes, 0)
d.Seek(n.ID, storage.SeekRange{Prefix: []byte{prefixCandidate}}, func(k, v []byte) bool {
c := new(candidate).FromBytes(v)
if c.Registered {
arr = append(arr, keyWithVotes{Key: string(kv.Key), Votes: &c.Votes})
}
arr = append(arr, keyWithVotes{Key: string(k), Votes: &c.Votes})
}
return true
})
if !sortByKey {
// sortByKey assumes to sort by serialized key bytes (that's the way keys
// are stored and retrieved from the storage by default). Otherwise, need

26
pkg/core/native/oracle.go
View file

@ -473,23 +473,25 @@ func (o *Oracle) getOriginalTxID(d *dao.Simple, tx *transaction.Transaction) uti
// getRequests returns all requests which have not been finished yet.
func (o *Oracle) getRequests(d *dao.Simple) (map[uint64]*state.OracleRequest, error) {
arr, err := d.GetStorageItemsWithPrefix(o.ID, prefixRequest)
if err != nil {
return nil, err
}
reqs := make(map[uint64]*state.OracleRequest, len(arr))
for _, kv := range arr {
if len(kv.Key) != 8 {
return nil, errors.New("invalid request ID")
var reqs = make(map[uint64]*state.OracleRequest)
var err error
d.Seek(o.ID, storage.SeekRange{Prefix: prefixRequest}, func(k, v []byte) bool {
if len(k) != 8 {
err = errors.New("invalid request ID")
return false
}
req := new(state.OracleRequest)
err = stackitem.DeserializeConvertible(kv.Item, req)
err = stackitem.DeserializeConvertible(v, req)
if err != nil {
return false
}
id := binary.BigEndian.Uint64(k)
reqs[id] = req
return true
})
if err != nil {
return nil, err
}
id := binary.BigEndian.Uint64([]byte(kv.Key))
reqs[id] = req
}
return reqs, nil
}

24
pkg/core/native/policy.go
View file

@ -10,6 +10,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
@ -156,23 +157,20 @@ func (p *Policy) PostPersist(ic *interop.Context) error {
p.storagePrice = uint32(getIntWithKey(p.ID, ic.DAO, storagePriceKey))
p.blockedAccounts = make([]util.Uint160, 0)
siArr, err := ic.DAO.GetStorageItemsWithPrefix(p.ID, []byte{blockedAccountPrefix})
var fErr error
ic.DAO.Seek(p.ID, storage.SeekRange{Prefix: []byte{blockedAccountPrefix}}, func(k, _ []byte) bool {
hash, err := util.Uint160DecodeBytesBE(k)
if err != nil {
return fmt.Errorf("failed to get blocked accounts from storage: %w", err)
}
for _, kv := range siArr {
hash, err := util.Uint160DecodeBytesBE([]byte(kv.Key))
if err != nil {
return fmt.Errorf("failed to decode blocked account hash: %w", err)
fErr = fmt.Errorf("failed to decode blocked account hash: %w", err)
return false
}
p.blockedAccounts = append(p.blockedAccounts, hash)
}
// blockedAccounts should be sorted by account BE bytes, but GetStorageItemsWithPrefix
// returns values sorted by key (which is account's BE bytes), so don't need to sort
// one more time.
return true
})
if fErr == nil {
p.isValid = true
return nil
}
return fErr
}
// getFeePerByte is Policy contract method and returns required transaction's fee

6
pkg/core/state/storage_item.go
View file

@ -2,9 +2,3 @@ package state
// StorageItem is the value to be stored with read-only flag.
type StorageItem []byte
// StorageItemWithKey is a storage item with corresponding key.
type StorageItemWithKey struct {
Key []byte
Item StorageItem
}