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[#62] morph: List morph rules chains by traversing iterator

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* Make `ListMorphRuleChains` methods use `commonclient.ReadIteratorItems`.
* Introduce `ContractStorageActor` interface.
* Iterators are used because listing by `ListChainsByPrefix` may cause
  stack overflow from neo-go side (len(items) > 1024).

Signed-off-by: Airat Arifullin <aarifullin@yadro.com>
This commit is contained in:
aarifullin 2024-04-03 15:34:40 +03:00 committed by Evgenii Stratonikov
parent 04a79f57ef
commit c539728641
3 changed files with 63 additions and 35 deletions
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2
go.mod
View file

@ -3,7 +3,7 @@ module git.frostfs.info/TrueCloudLab/policy-engine
go 1.20
require (
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240409111539-e7a05a49ff45
github.com/google/uuid v1.3.1
github.com/mailru/easyjson v0.7.7
github.com/nspcc-dev/neo-go v0.105.0

4
go.sum
View file

@ -1,5 +1,5 @@
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0 h1:FzurjElUwC7InY9v5rzXReKbfBL5yRJKSWJPq6BKhH0=
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0/go.mod h1:F/fe1OoIDKr5Bz99q4sriuHDuf3aZefZy9ZsCqEtgxc=
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240409111539-e7a05a49ff45 h1:Tp4I+XOLp3VCJORfxSamQtj3RZNISbaLM4WD5iIzXxg=
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240409111539-e7a05a49ff45/go.mod h1:F/fe1OoIDKr5Bz99q4sriuHDuf3aZefZy9ZsCqEtgxc=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/bits-and-blooms/bitset v1.8.0 h1:FD+XqgOZDUxxZ8hzoBFuV9+cGWY9CslN6d5MS5JVb4c=
github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=

92
pkg/morph/policy/policy_contract_storage.go
View file

@ -6,6 +6,7 @@ import (
"math/big"
"strings"
"git.frostfs.info/TrueCloudLab/frostfs-contract/commonclient"
"git.frostfs.info/TrueCloudLab/frostfs-contract/policy"
client "git.frostfs.info/TrueCloudLab/frostfs-contract/rpcclient/policy"
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
@ -13,6 +14,7 @@ import (
"github.com/google/uuid"
"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
neoinvoker "github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neo-go/pkg/wallet"
@ -26,6 +28,10 @@ var (
// ContractStorage is the interface to manage chain rules within Policy contract.
type ContractStorage struct {
hash util.Uint160
actor ContractStorageActor
contractInterface *client.Contract
}
@ -33,23 +39,49 @@ var _ engine.MorphRuleChainStorage = (*ContractStorage)(nil)
// ContractStorageReader is the interface to read data from Policy contract.
type ContractStorageReader struct {
hash util.Uint160
invoker ContractStorageInvoker
contractReaderInterface *client.ContractReader
}
type ContractStorageActor interface {
client.Actor
GetRPCInvoker() neoinvoker.RPCInvoke
}
var _ engine.MorphRuleChainStorageReader = (*ContractStorageReader)(nil)
func NewContractStorage(actor client.Actor, contract util.Uint160) *ContractStorage {
func NewContractStorage(actor ContractStorageActor, contract util.Uint160) *ContractStorage {
return &ContractStorage{
hash: contract,
actor: actor,
contractInterface: client.New(actor, contract),
}
}
type contractStorageActorImpl struct {
client.Actor
rpcActor actor.RPCActor
}
var _ ContractStorageActor = &contractStorageActorImpl{}
func (c *contractStorageActorImpl) GetRPCInvoker() neoinvoker.RPCInvoke {
return c.rpcActor
}
// NewContractStorageWithSimpleActor constructs core actor from `rpcActor`.
//
// Note: NewContractStorageWithSimpleActor is appropriate only for call-only-once cases (for example, in CLIs). Otherwise, it is unsafe,
// because core actor may use invalidated `rpcActor` if some connection errors occurred.
func NewContractStorageWithSimpleActor(rpcActor actor.RPCActor, acc *wallet.Account, contract util.Uint160) (*ContractStorage, error) {
act, err := actor.NewSimple(rpcActor, acc)
if err != nil {
return nil, fmt.Errorf("failed to create simple actor: %w", err)
}
return NewContractStorage(act, contract), nil
return NewContractStorage(&contractStorageActorImpl{Actor: act, rpcActor: rpcActor}, contract), nil
}
func (s *ContractStorage) AddMorphRuleChain(name chain.Name, target engine.Target, c *chain.Chain) (txHash util.Uint256, vub uint32, err error) {
@ -98,17 +130,26 @@ func (s *ContractStorage) RemoveMorphRuleChainsByTarget(name chain.Name, target
return
}
func (s *ContractStorage) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
func listChains(name chain.Name, target engine.Target, rpcInvoker neoinvoker.RPCInvoke, hash util.Uint160) ([]*chain.Chain, error) {
kind, err := policyKind(target.Type)
if err != nil {
return nil, err
}
items, err := s.contractInterface.ListChainsByPrefix(big.NewInt(int64(kind)), target.Name, []byte(name))
if err != nil {
return nil, err
const (
method = "iteratorChainsByPrefix"
batchSize = neoinvoker.DefaultIteratorResultItems
)
inv := neoinvoker.New(rpcInvoker, nil)
params := []any{
big.NewInt(int64(kind)), target.Name, []byte(name),
}
items, err := commonclient.ReadIteratorItems(inv, batchSize, hash, method, params...)
if err != nil {
return nil, fmt.Errorf("read items error: %w", err)
}
var chains []*chain.Chain
for _, item := range items {
serialized, err := bytesFromStackItem(item)
@ -121,10 +162,13 @@ func (s *ContractStorage) ListMorphRuleChains(name chain.Name, target engine.Tar
}
chains = append(chains, c)
}
return chains, nil
}
func (s *ContractStorage) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
return listChains(name, target, s.actor.GetRPCInvoker(), s.hash)
}
func (s *ContractStorage) ListTargetsIterator(targetType engine.TargetType) (uuid.UUID, result.Iterator, error) {
kind, err := policyKind(targetType)
if err != nil {
@ -141,37 +185,21 @@ func (s *ContractStorage) SetAdmin(addr util.Uint160) (util.Uint256, uint32, err
return s.contractInterface.SetAdmin(addr)
}
func NewContractStorageReader(inv client.Invoker, contract util.Uint160) *ContractStorageReader {
type ContractStorageInvoker interface {
client.Invoker
GetRPCInvoker() neoinvoker.RPCInvoke
}
func NewContractStorageReader(inv ContractStorageInvoker, contract util.Uint160) *ContractStorageReader {
return &ContractStorageReader{
hash: contract,
invoker: inv,
contractReaderInterface: client.NewReader(inv, contract),
}
}
func (s *ContractStorageReader) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
kind, err := policyKind(target.Type)
if err != nil {
return nil, err
}
items, err := s.contractReaderInterface.ListChainsByPrefix(big.NewInt(int64(kind)), target.Name, []byte(name))
if err != nil {
return nil, err
}
var chains []*chain.Chain
for _, item := range items {
serialized, err := bytesFromStackItem(item)
if err != nil {
return nil, err
}
c := new(chain.Chain)
if err := c.DecodeBytes(serialized); err != nil {
return nil, err
}
chains = append(chains, c)
}
return chains, nil
return listChains(name, target, s.invoker.GetRPCInvoker(), s.hash)
}
func (s *ContractStorageReader) GetAdmin() (util.Uint160, error) {