pkg/local_object_storage/metabase/inhume_test.go

@@ -111,7 +111,11 @@ func TestInhumeLocked(t *testing.T) {
 
 	locked := oidtest.Address()
 
-	err := db.Lock(context.Background(), locked.Container(), oidtest.ID(), []oid.ID{locked.Object()})
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(locked.Container())
+	lockPrm.SetTarget(oidtest.ID(), locked.Object())
+
+	_, err := db.Lock(context.Background(), lockPrm)
 	require.NoError(t, err)
 
 	var prm meta.InhumePrm

pkg/local_object_storage/metabase/iterators_test.go

@@ -35,9 +35,14 @@ func TestDB_IterateExpired(t *testing.T) {
 
 	expiredLocked := putWithExpiration(t, db, objectSDK.TypeRegular, epoch-1)
 
-	require.NoError(t, db.Lock(context.Background(), expiredLocked.Container(), oidtest.ID(), []oid.ID{expiredLocked.Object()}))
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(expiredLocked.Container())
+	lockPrm.SetTarget(oidtest.ID(), expiredLocked.Object())
 
-	err := db.IterateExpired(context.Background(), epoch, func(exp *meta.ExpiredObject) error {
+	_, err := db.Lock(context.Background(), lockPrm)
+	require.NoError(t, err)
+
+	err = db.IterateExpired(context.Background(), epoch, func(exp *meta.ExpiredObject) error {
 		if addr, ok := mAlive[exp.Type()]; ok {
 			require.NotEqual(t, addr, exp.Address())
 		}

pkg/local_object_storage/metabase/lock.go

@@ -30,13 +30,35 @@ func bucketNameLockers(idCnr cid.ID, key []byte) []byte {
 	return bucketName(idCnr, lockersPrefix, key)
 }
 
+// LockPrm contains parameters for Lock operation.
+type LockPrm struct {
+	cnt    cid.ID
+	lock   oid.ID
+	locked []oid.ID
+}
+
+// SetContainer sets the container ID for both the lock and locked objects
+// since they must belong to the same container.
+func (p *LockPrm) SetContainer(cnt cid.ID) {
+	p.cnt = cnt
+}
+
+// SetTarget sets lock object ID and IDs of objects to be locked.
+func (p *LockPrm) SetTarget(lock oid.ID, locked ...oid.ID) {
+	p.lock = lock
+	p.locked = locked
+}
+
+// LockPrm contains results for Lock operation.
+type LockRes struct{}
+
 // Lock marks objects as locked with another object. All objects are from the
 // specified container.
 //
 // Allows locking regular objects only (otherwise returns apistatus.LockNonRegularObject).
 //
 // Locked list should be unique. Panics if it is empty.
-func (db *DB) Lock(ctx context.Context, cnr cid.ID, locker oid.ID, locked []oid.ID) error {
+func (db *DB) Lock(ctx context.Context, prm LockPrm) (LockRes, error) {
 	var (
 		startedAt = time.Now()
 		success   = false
@@ -47,9 +69,9 @@ func (db *DB) Lock(ctx context.Context, cnr cid.ID, locker oid.ID, locked []oid.
 
 	_, span := tracing.StartSpanFromContext(ctx, "metabase.Lock",
 		trace.WithAttributes(
-			attribute.String("container_id", cnr.EncodeToString()),
+			attribute.String("container_id", prm.cnt.EncodeToString()),
-			attribute.String("locker", locker.EncodeToString()),
+			attribute.String("locker", prm.lock.EncodeToString()),
-			attribute.Int("locked_count", len(locked)),
+			attribute.Int("locked_count", len(prm.locked)),
 		))
 	defer span.End()
 
@@ -57,18 +79,18 @@ func (db *DB) Lock(ctx context.Context, cnr cid.ID, locker oid.ID, locked []oid.
 	defer db.modeMtx.RUnlock()
 
 	if db.mode.NoMetabase() {
-		return ErrDegradedMode
+		return LockRes{}, ErrDegradedMode
 	} else if db.mode.ReadOnly() {
-		return ErrReadOnlyMode
+		return LockRes{}, ErrReadOnlyMode
 	}
 
-	if len(locked) == 0 {
+	if len(prm.locked) == 0 {
 		panic("empty locked list")
 	}
 
-	err := db.lockInternal(locked, cnr, locker)
+	err := db.lockInternal(prm.locked, prm.cnt, prm.lock)
 	success = err == nil
-	return err
+	return LockRes{}, err
 }
 
 func (db *DB) lockInternal(locked []oid.ID, cnr cid.ID, locker oid.ID) error {

pkg/local_object_storage/metabase/lock_test.go

@@ -23,9 +23,12 @@ func TestDB_Lock(t *testing.T) {
 	db := newDB(t)
 	defer func() { require.NoError(t, db.Close(context.Background())) }()
 
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(cnr)
+
 	t.Run("empty locked list", func(t *testing.T) {
-		require.Panics(t, func() { _ = db.Lock(context.Background(), cnr, oid.ID{}, nil) })
+		lockPrm.SetTarget(oid.ID{})
-		require.Panics(t, func() { _ = db.Lock(context.Background(), cnr, oid.ID{}, []oid.ID{}) })
+		require.Panics(t, func() { _, _ = db.Lock(context.Background(), lockPrm) })
 	})
 
 	t.Run("(ir)regular", func(t *testing.T) {
@@ -47,7 +50,8 @@ func TestDB_Lock(t *testing.T) {
 			id, _ := obj.ID()
 
 			// try to lock it
-			err = db.Lock(context.Background(), cnr, oidtest.ID(), []oid.ID{id})
+			lockPrm.SetTarget(oidtest.ID(), id)
+			_, err = db.Lock(context.Background(), lockPrm)
 			if typ == objectSDK.TypeRegular {
 				require.NoError(t, err, typ)
 			} else {
@@ -198,7 +202,12 @@ func TestDB_Lock_Expired(t *testing.T) {
 	require.ErrorIs(t, err, meta.ErrObjectIsExpired)
 
 	// lock the obj
-	require.NoError(t, db.Lock(context.Background(), addr.Container(), oidtest.ID(), []oid.ID{addr.Object()}))
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(addr.Container())
+	lockPrm.SetTarget(oidtest.ID(), addr.Object())
+
+	_, err = db.Lock(context.Background(), lockPrm)
+	require.NoError(t, err)
 
 	// object is expired but locked, thus, must be available
 	_, err = metaGet(db, addr, false)
@@ -277,7 +286,11 @@ func putAndLockObj(t *testing.T, db *meta.DB, numOfLockedObjs int) ([]*objectSDK
 	err := putBig(db, lockObj)
 	require.NoError(t, err)
 
-	err = db.Lock(context.Background(), cnr, lockID, lockedObjIDs)
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(cnr)
+	lockPrm.SetTarget(lockID, lockedObjIDs...)
+
+	_, err = db.Lock(context.Background(), lockPrm)
 	require.NoError(t, err)
 
 	return lockedObjs, lockObj

pkg/local_object_storage/shard/control.go

@@ -326,7 +326,12 @@ func (s *Shard) refillLockObject(ctx context.Context, obj *objectSDK.Object) err
 
 	cnr, _ := obj.ContainerID()
 	id, _ := obj.ID()
-	err := s.metaBase.Lock(ctx, cnr, id, locked)
+
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(cnr)
+	lockPrm.SetTarget(id, locked...)
+
+	_, err := s.metaBase.Lock(ctx, lockPrm)
 	if err != nil {
 		return fmt.Errorf("could not lock objects: %w", err)
 	}

pkg/local_object_storage/shard/lock.go

@@ -38,7 +38,11 @@ func (s *Shard) Lock(ctx context.Context, idCnr cid.ID, locker oid.ID, locked []
 		return ErrDegradedMode
 	}
 
-	err := s.metaBase.Lock(ctx, idCnr, locker, locked)
+	var lockPrm meta.LockPrm
+	lockPrm.SetContainer(idCnr)
+	lockPrm.SetTarget(locker, locked...)
+
+	_, err := s.metaBase.Lock(ctx, lockPrm)
 	if err != nil {
 		return fmt.Errorf("metabase lock: %w", err)
 	}

scripts/populate-metabase/internal/populate.go

@@ -253,7 +253,11 @@ func PopulateLocked(
 			lockerOID, _ := locker.ID()
 
 			group.Go(func() error {
-				if err := db.Lock(ctx, lockerCID, lockerOID, []oid.ID{id}); err != nil {
+				var lockPrm meta.LockPrm
+				lockPrm.SetContainer(lockerCID)
+				lockPrm.SetTarget(lockerOID, id)
+
+				if _, err := db.Lock(ctx, lockPrm); err != nil {
 					return fmt.Errorf("couldn't lock an object: %w", err)
 				}
 				return nil