[#1418] meta: Do not use pointers as parameters

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

pkg/local_object_storage/metabase/delete.go

@@ -24,17 +24,18 @@ type DeleteRes struct{}
 // WithAddresses is a Delete option to set the addresses of the objects to delete.
 //
 // Option is required.
-func (p *DeletePrm) WithAddresses(addrs ...oid.Address) *DeletePrm {
+func (p *DeletePrm) WithAddresses(addrs ...oid.Address) {
 	if p != nil {
 		p.addrs = addrs
 	}
-
-	return p
 }
 
 // Delete removes objects from DB.
 func Delete(db *DB, addrs ...oid.Address) error {
-	_, err := db.Delete(new(DeletePrm).WithAddresses(addrs...))
+	var deletePrm DeletePrm
+	deletePrm.WithAddresses(addrs...)
+
+	_, err := db.Delete(deletePrm)
 	return err
 }
 
@@ -49,7 +50,7 @@ type referenceNumber struct {
 type referenceCounter map[string]*referenceNumber
 
 // Delete removed object records from metabase indexes.
-func (db *DB) Delete(prm *DeletePrm) (*DeleteRes, error) {
+func (db *DB) Delete(prm DeletePrm) (*DeleteRes, error) {
 	err := db.boltDB.Update(func(tx *bbolt.Tx) error {
 		return db.deleteGroup(tx, prm.addrs)
 	})

pkg/local_object_storage/metabase/exists.go

@@ -24,12 +24,10 @@ type ExistsRes struct {
 var ErrLackSplitInfo = errors.New("no split info on parent object")
 
 // WithAddress is an Exists option to set object checked for existence.
-func (p *ExistsPrm) WithAddress(addr oid.Address) *ExistsPrm {
+func (p *ExistsPrm) WithAddress(addr oid.Address) {
 	if p != nil {
 		p.addr = addr
 	}
-
-	return p
 }
 
 // Exists returns the fact that the object is in the metabase.
@@ -41,7 +39,10 @@ func (p *ExistsRes) Exists() bool {
 //
 // See DB.Exists docs.
 func Exists(db *DB, addr oid.Address) (bool, error) {
-	r, err := db.Exists(new(ExistsPrm).WithAddress(addr))
+	var existsPrm ExistsPrm
+	existsPrm.WithAddress(addr)
+
+	r, err := db.Exists(existsPrm)
 	if err != nil {
 		return false, err
 	}
@@ -53,7 +54,7 @@ func Exists(db *DB, addr oid.Address) (bool, error) {
 // returns true if addr is in primary index or false if it is not.
 //
 // Returns an error of type apistatus.ObjectAlreadyRemoved if object has been placed in graveyard.
-func (db *DB) Exists(prm *ExistsPrm) (res *ExistsRes, err error) {
+func (db *DB) Exists(prm ExistsPrm) (res *ExistsRes, err error) {
 	res = new(ExistsRes)
 
 	err = db.boltDB.View(func(tx *bbolt.Tx) error {

pkg/local_object_storage/metabase/get.go

@@ -24,23 +24,19 @@ type GetRes struct {
 // WithAddress is a Get option to set the address of the requested object.
 //
 // Option is required.
-func (p *GetPrm) WithAddress(addr oid.Address) *GetPrm {
+func (p *GetPrm) WithAddress(addr oid.Address) {
 	if p != nil {
 		p.addr = addr
 	}
-
-	return p
 }
 
 // WithRaw is a Get option to set raw flag value. If flag is unset, then Get
 // returns header of virtual object, otherwise it returns SplitInfo of virtual
 // object.
-func (p *GetPrm) WithRaw(raw bool) *GetPrm {
+func (p *GetPrm) WithRaw(raw bool) {
 	if p != nil {
 		p.raw = raw
 	}
-
-	return p
 }
 
 // Header returns the requested object header.
@@ -50,7 +46,10 @@ func (r *GetRes) Header() *objectSDK.Object {
 
 // Get reads the object from DB.
 func Get(db *DB, addr oid.Address) (*objectSDK.Object, error) {
-	r, err := db.Get(new(GetPrm).WithAddress(addr))
+	var getPrm GetPrm
+	getPrm.WithAddress(addr)
+
+	r, err := db.Get(getPrm)
 	if err != nil {
 		return nil, err
 	}
@@ -60,7 +59,11 @@ func Get(db *DB, addr oid.Address) (*objectSDK.Object, error) {
 
 // GetRaw reads physically stored object from DB.
 func GetRaw(db *DB, addr oid.Address, raw bool) (*objectSDK.Object, error) {
-	r, err := db.Get(new(GetPrm).WithAddress(addr).WithRaw(raw))
+	var getPrm GetPrm
+	getPrm.WithAddress(addr)
+	getPrm.WithRaw(raw)
+
+	r, err := db.Get(getPrm)
 	if err != nil {
 		return nil, err
 	}
@@ -72,7 +75,7 @@ func GetRaw(db *DB, addr oid.Address, raw bool) (*objectSDK.Object, error) {
 //
 // Returns an error of type apistatus.ObjectNotFound if object is missing in DB.
 // Returns an error of type apistatus.ObjectAlreadyRemoved if object has been placed in graveyard.
-func (db *DB) Get(prm *GetPrm) (res *GetRes, err error) {
+func (db *DB) Get(prm GetPrm) (res *GetRes, err error) {
 	res = new(GetRes)
 
 	err = db.boltDB.View(func(tx *bbolt.Tx) error {

pkg/local_object_storage/metabase/get_test.go

@@ -123,7 +123,11 @@ func TestDB_Get(t *testing.T) {
 		require.ErrorAs(t, err, new(apistatus.ObjectAlreadyRemoved))
 
 		obj = oidtest.Address()
-		_, err = db.Inhume(new(meta.InhumePrm).WithAddresses(obj))
+
+		var prm meta.InhumePrm
+		prm.WithAddresses(obj)
+
+		_, err = db.Inhume(prm)
 		require.NoError(t, err)
 		_, err = meta.Get(db, obj)
 		require.ErrorAs(t, err, new(apistatus.ObjectNotFound))

pkg/local_object_storage/metabase/graveyard.go

@@ -32,9 +32,8 @@ type GarbageIterationPrm struct {
 
 // SetHandler sets a handler that will be called on every
 // GarbageObject.
-func (g *GarbageIterationPrm) SetHandler(h GarbageHandler) *GarbageIterationPrm {
+func (g *GarbageIterationPrm) SetHandler(h GarbageHandler) {
 	g.h = h
-	return g
 }
 
 // SetOffset sets an offset of the iteration operation.
@@ -49,9 +48,8 @@ func (g *GarbageIterationPrm) SetHandler(h GarbageHandler) *GarbageIterationPrm
 // next element.
 //
 // Nil offset means start an integration from the beginning.
-func (g *GarbageIterationPrm) SetOffset(offset oid.Address) *GarbageIterationPrm {
+func (g *GarbageIterationPrm) SetOffset(offset oid.Address) {
 	g.offset = &offset
-	return g
 }
 
 // IterateOverGarbage iterates over all objects
@@ -59,7 +57,7 @@ func (g *GarbageIterationPrm) SetOffset(offset oid.Address) *GarbageIterationPrm
 //
 // If h returns ErrInterruptIterator, nil returns immediately.
 // Returns other errors of h directly.
-func (db *DB) IterateOverGarbage(p *GarbageIterationPrm) error {
+func (db *DB) IterateOverGarbage(p GarbageIterationPrm) error {
 	return db.boltDB.View(func(tx *bbolt.Tx) error {
 		return db.iterateDeletedObj(tx, gcHandler{p.h}, p.offset)
 	})
@@ -95,9 +93,8 @@ type GraveyardIterationPrm struct {
 
 // SetHandler sets a handler that will be called on every
 // TombstonedObject.
-func (g *GraveyardIterationPrm) SetHandler(h TombstonedHandler) *GraveyardIterationPrm {
+func (g *GraveyardIterationPrm) SetHandler(h TombstonedHandler) {
 	g.h = h
-	return g
 }
 
 // SetOffset sets an offset of the iteration operation.
@@ -112,16 +109,15 @@ func (g *GraveyardIterationPrm) SetHandler(h TombstonedHandler) *GraveyardIterat
 // next element.
 //
 // Nil offset means start an integration from the beginning.
-func (g *GraveyardIterationPrm) SetOffset(offset oid.Address) *GraveyardIterationPrm {
+func (g *GraveyardIterationPrm) SetOffset(offset oid.Address) {
 	g.offset = &offset
-	return g
 }
 
 // IterateOverGraveyard iterates over all graves in DB.
 //
 // If h returns ErrInterruptIterator, nil returns immediately.
 // Returns other errors of h directly.
-func (db *DB) IterateOverGraveyard(p *GraveyardIterationPrm) error {
+func (db *DB) IterateOverGraveyard(p GraveyardIterationPrm) error {
 	return db.boltDB.View(func(tx *bbolt.Tx) error {
 		return db.iterateDeletedObj(tx, graveyardHandler{p.h}, p.offset)
 	})

pkg/local_object_storage/metabase/graveyard_test.go

@@ -14,21 +14,24 @@ func TestDB_IterateDeletedObjects_EmptyDB(t *testing.T) {
 	db := newDB(t)
 
 	var counter int
-	iterGravePRM := new(meta.GraveyardIterationPrm)
+	var iterGravePRM meta.GraveyardIterationPrm
 
-	err := db.IterateOverGraveyard(iterGravePRM.SetHandler(func(garbage meta.TombstonedObject) error {
+	iterGravePRM.SetHandler(func(garbage meta.TombstonedObject) error {
 		counter++
 		return nil
-	}))
+	})
+
+	err := db.IterateOverGraveyard(iterGravePRM)
 	require.NoError(t, err)
 	require.Zero(t, counter)
 
-	iterGCPRM := new(meta.GarbageIterationPrm)
+	var iterGCPRM meta.GarbageIterationPrm
-
+	iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
-	err = db.IterateOverGarbage(iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
 		counter++
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGCPRM)
 	require.NoError(t, err)
 	require.Zero(t, counter)
 }
@@ -60,29 +63,25 @@ func TestDB_Iterate_OffsetNotFound(t *testing.T) {
 	err = putBig(db, obj1)
 	require.NoError(t, err)
 
-	_, err = db.Inhume(new(meta.InhumePrm).
+	var inhumePrm meta.InhumePrm
-		WithAddresses(object.AddressOf(obj1)).
+	inhumePrm.WithAddresses(object.AddressOf(obj1))
-		WithGCMark(),
+	inhumePrm.WithGCMark()
-	)
+
+	_, err = db.Inhume(inhumePrm)
 	require.NoError(t, err)
 
 	var counter int
 
-	iterGCPRM := new(meta.GarbageIterationPrm).
+	var iterGCPRM meta.GarbageIterationPrm
-		SetOffset(object.AddressOf(obj2)).
+	iterGCPRM.SetOffset(object.AddressOf(obj2))
-		SetHandler(func(garbage meta.GarbageObject) error {
+	iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
 		require.Equal(t, garbage.Address(), addr1)
 		counter++
 
 		return nil
 	})
 
-	err = db.IterateOverGarbage(iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
+	err = db.IterateOverGarbage(iterGCPRM)
-		require.Equal(t, garbage.Address(), addr1)
-		counter++
-
-		return nil
-	}))
 	require.NoError(t, err)
 
 	// the second object would be put after the
@@ -91,12 +90,14 @@ func TestDB_Iterate_OffsetNotFound(t *testing.T) {
 	require.Equal(t, 0, counter)
 
 	iterGCPRM.SetOffset(addr3)
-	err = db.IterateOverGarbage(iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
+	iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
 		require.Equal(t, garbage.Address(), addr1)
 		counter++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGCPRM)
 	require.NoError(t, err)
 
 	// the third object would be put before the
@@ -128,22 +129,22 @@ func TestDB_IterateDeletedObjects(t *testing.T) {
 	err = putBig(db, obj4)
 	require.NoError(t, err)
 
-	inhumePrm := new(meta.InhumePrm)
+	var inhumePrm meta.InhumePrm
 
 	// inhume with tombstone
 	addrTombstone := oidtest.Address()
 
-	_, err = db.Inhume(inhumePrm.
+	inhumePrm.WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2))
-		WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2)).
+	inhumePrm.WithTombstoneAddress(addrTombstone)
-		WithTombstoneAddress(addrTombstone),
+
-	)
+	_, err = db.Inhume(inhumePrm)
 	require.NoError(t, err)
 
+	inhumePrm.WithAddresses(object.AddressOf(obj3), object.AddressOf(obj4))
+	inhumePrm.WithGCMark()
+
 	// inhume with GC mark
-	_, err = db.Inhume(inhumePrm.
+	_, err = db.Inhume(inhumePrm)
-		WithAddresses(object.AddressOf(obj3), object.AddressOf(obj4)).
-		WithGCMark(),
-	)
 	require.NoError(t, err)
 
 	var (
@@ -151,26 +152,28 @@ func TestDB_IterateDeletedObjects(t *testing.T) {
 		buriedTS, buriedGC []oid.Address
 	)
 
-	iterGravePRM := new(meta.GraveyardIterationPrm)
+	var iterGravePRM meta.GraveyardIterationPrm
-
+	iterGravePRM.SetHandler(func(tomstoned meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGravePRM.SetHandler(func(tomstoned meta.TombstonedObject) error {
 		require.Equal(t, addrTombstone, tomstoned.Tombstone())
 
 		buriedTS = append(buriedTS, tomstoned.Address())
 		counterAll++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGravePRM)
 	require.NoError(t, err)
 
-	iterGCPRM := new(meta.GarbageIterationPrm)
+	var iterGCPRM meta.GarbageIterationPrm
-
+	iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
-	err = db.IterateOverGarbage(iterGCPRM.SetHandler(func(garbage meta.GarbageObject) error {
 		buriedGC = append(buriedGC, garbage.Address())
 		counterAll++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGCPRM)
 	require.NoError(t, err)
 
 	// objects covered with a tombstone
@@ -212,15 +215,16 @@ func TestDB_IterateOverGraveyard_Offset(t *testing.T) {
 	err = putBig(db, obj4)
 	require.NoError(t, err)
 
-	inhumePrm := new(meta.InhumePrm)
-
 	// inhume with tombstone
 	addrTombstone := oidtest.Address()
 
-	_, err = db.Inhume(inhumePrm.
+	var inhumePrm meta.InhumePrm
-		WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2), object.AddressOf(obj3), object.AddressOf(obj4)).
+	inhumePrm.WithAddresses(
-		WithTombstoneAddress(addrTombstone),
+		object.AddressOf(obj1), object.AddressOf(obj2),
-	)
+		object.AddressOf(obj3), object.AddressOf(obj4))
+	inhumePrm.WithTombstoneAddress(addrTombstone)
+
+	_, err = db.Inhume(inhumePrm)
 	require.NoError(t, err)
 
 	expectedGraveyard := []oid.Address{
@@ -235,9 +239,8 @@ func TestDB_IterateOverGraveyard_Offset(t *testing.T) {
 		gotGraveyard []oid.Address
 	)
 
-	iterGraveyardPrm := new(meta.GraveyardIterationPrm)
+	var iterGraveyardPrm meta.GraveyardIterationPrm
-
+	iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
 		require.Equal(t, addrTombstone, tombstoned.Tombstone())
 
 		gotGraveyard = append(gotGraveyard, tombstoned.Address())
@@ -248,7 +251,9 @@ func TestDB_IterateOverGraveyard_Offset(t *testing.T) {
 		}
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGraveyardPrm)
 	require.NoError(t, err)
 	require.Equal(t, firstIterationSize, counter)
 	require.Equal(t, firstIterationSize, len(gotGraveyard))
@@ -256,15 +261,16 @@ func TestDB_IterateOverGraveyard_Offset(t *testing.T) {
 	// last received address is an offset
 	offset := gotGraveyard[len(gotGraveyard)-1]
 	iterGraveyardPrm.SetOffset(offset)
-
+	iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
 		require.Equal(t, addrTombstone, tombstoned.Tombstone())
 
 		gotGraveyard = append(gotGraveyard, tombstoned.Address())
 		counter++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGraveyardPrm)
 	require.NoError(t, err)
 	require.Equal(t, len(expectedGraveyard), counter)
 	require.ElementsMatch(t, gotGraveyard, expectedGraveyard)
@@ -273,13 +279,13 @@ func TestDB_IterateOverGraveyard_Offset(t *testing.T) {
 	// should lead to no iteration at all
 	offset = gotGraveyard[len(gotGraveyard)-1]
 	iterGraveyardPrm.SetOffset(offset)
-
 	iWasCalled := false
-
+	iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGraveyardPrm.SetHandler(func(tombstoned meta.TombstonedObject) error {
 		iWasCalled = true
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGraveyardPrm)
 	require.NoError(t, err)
 	require.False(t, iWasCalled)
 }
@@ -307,12 +313,13 @@ func TestDB_IterateOverGarbage_Offset(t *testing.T) {
 	err = putBig(db, obj4)
 	require.NoError(t, err)
 
-	inhumePrm := new(meta.InhumePrm)
+	var inhumePrm meta.InhumePrm
+	inhumePrm.WithAddresses(
+		object.AddressOf(obj1), object.AddressOf(obj2),
+		object.AddressOf(obj3), object.AddressOf(obj4))
+	inhumePrm.WithGCMark()
 
-	_, err = db.Inhume(inhumePrm.
+	_, err = db.Inhume(inhumePrm)
-		WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2), object.AddressOf(obj3), object.AddressOf(obj4)).
-		WithGCMark(),
-	)
 	require.NoError(t, err)
 
 	expectedGarbage := []oid.Address{
@@ -327,9 +334,8 @@ func TestDB_IterateOverGarbage_Offset(t *testing.T) {
 		gotGarbage []oid.Address
 	)
 
-	iterGarbagePrm := new(meta.GarbageIterationPrm)
+	var iterGarbagePrm meta.GarbageIterationPrm
-
+	iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
-	err = db.IterateOverGarbage(iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
 		gotGarbage = append(gotGarbage, garbage.Address())
 
 		counter++
@@ -338,7 +344,9 @@ func TestDB_IterateOverGarbage_Offset(t *testing.T) {
 		}
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGarbagePrm)
 	require.NoError(t, err)
 	require.Equal(t, firstIterationSize, counter)
 	require.Equal(t, firstIterationSize, len(gotGarbage))
@@ -346,13 +354,14 @@ func TestDB_IterateOverGarbage_Offset(t *testing.T) {
 	// last received address is an offset
 	offset := gotGarbage[len(gotGarbage)-1]
 	iterGarbagePrm.SetOffset(offset)
-
+	iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
-	err = db.IterateOverGarbage(iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
 		gotGarbage = append(gotGarbage, garbage.Address())
 		counter++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGarbagePrm)
 	require.NoError(t, err)
 	require.Equal(t, len(expectedGarbage), counter)
 	require.ElementsMatch(t, gotGarbage, expectedGarbage)
@@ -361,13 +370,13 @@ func TestDB_IterateOverGarbage_Offset(t *testing.T) {
 	// should lead to no iteration at all
 	offset = gotGarbage[len(gotGarbage)-1]
 	iterGarbagePrm.SetOffset(offset)
-
 	iWasCalled := false
-
+	iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
-	err = db.IterateOverGarbage(iterGarbagePrm.SetHandler(func(garbage meta.GarbageObject) error {
 		iWasCalled = true
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGarbage(iterGarbagePrm)
 	require.NoError(t, err)
 	require.False(t, iWasCalled)
 }
@@ -387,27 +396,27 @@ func TestDB_DropGraves(t *testing.T) {
 	err = putBig(db, obj2)
 	require.NoError(t, err)
 
-	inhumePrm := new(meta.InhumePrm)
-
 	// inhume with tombstone
 	addrTombstone := oidtest.Address()
 
-	_, err = db.Inhume(inhumePrm.
+	var inhumePrm meta.InhumePrm
-		WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2)).
+	inhumePrm.WithAddresses(object.AddressOf(obj1), object.AddressOf(obj2))
-		WithTombstoneAddress(addrTombstone),
+	inhumePrm.WithTombstoneAddress(addrTombstone)
-	)
+
+	_, err = db.Inhume(inhumePrm)
 	require.NoError(t, err)
 
 	buriedTS := make([]meta.TombstonedObject, 0)
-	iterGravePRM := new(meta.GraveyardIterationPrm)
+	var iterGravePRM meta.GraveyardIterationPrm
 	var counter int
-
+	iterGravePRM.SetHandler(func(tomstoned meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGravePRM.SetHandler(func(tomstoned meta.TombstonedObject) error {
 		buriedTS = append(buriedTS, tomstoned)
 		counter++
 
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGravePRM)
 	require.NoError(t, err)
 	require.Equal(t, 2, counter)
 
@@ -415,11 +424,12 @@ func TestDB_DropGraves(t *testing.T) {
 	require.NoError(t, err)
 
 	counter = 0
-
+	iterGravePRM.SetHandler(func(_ meta.TombstonedObject) error {
-	err = db.IterateOverGraveyard(iterGravePRM.SetHandler(func(_ meta.TombstonedObject) error {
 		counter++
 		return nil
-	}))
+	})
+
+	err = db.IterateOverGraveyard(iterGravePRM)
 	require.NoError(t, err)
 	require.Zero(t, counter)
 }

pkg/local_object_storage/metabase/inhume.go

@@ -22,45 +22,40 @@ type InhumePrm struct {
 type InhumeRes struct{}
 
 // WithAddresses sets a list of object addresses that should be inhumed.
-func (p *InhumePrm) WithAddresses(addrs ...oid.Address) *InhumePrm {
+func (p *InhumePrm) WithAddresses(addrs ...oid.Address) {
 	if p != nil {
 		p.target = addrs
 	}
-
-	return p
 }
 
 // WithTombstoneAddress sets tombstone address as the reason for inhume operation.
 //
 // addr should not be nil.
 // Should not be called along with WithGCMark.
-func (p *InhumePrm) WithTombstoneAddress(addr oid.Address) *InhumePrm {
+func (p *InhumePrm) WithTombstoneAddress(addr oid.Address) {
 	if p != nil {
 		p.tomb = &addr
 	}
-
-	return p
 }
 
 // WithGCMark marks the object to be physically removed.
 //
 // Should not be called along with WithTombstoneAddress.
-func (p *InhumePrm) WithGCMark() *InhumePrm {
+func (p *InhumePrm) WithGCMark() {
 	if p != nil {
 		p.tomb = nil
 	}
-
-	return p
 }
 
 // Inhume inhumes the object by specified address.
 //
 // tomb should not be nil.
 func Inhume(db *DB, target, tomb oid.Address) error {
-	_, err := db.Inhume(new(InhumePrm).
+	var inhumePrm InhumePrm
-		WithAddresses(target).
+	inhumePrm.WithAddresses(target)
-		WithTombstoneAddress(tomb),
+	inhumePrm.WithTombstoneAddress(tomb)
-	)
+
+	_, err := db.Inhume(inhumePrm)
 
 	return err
 }
@@ -71,7 +66,7 @@ var errBreakBucketForEach = errors.New("bucket ForEach break")
 //
 // Allows inhuming non-locked objects only. Returns apistatus.ObjectLocked
 // if at least one object is locked.
-func (db *DB) Inhume(prm *InhumePrm) (res *InhumeRes, err error) {
+func (db *DB) Inhume(prm InhumePrm) (res *InhumeRes, err error) {
 	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
 		garbageBKT := tx.Bucket(garbageBucketName)
 

pkg/local_object_storage/metabase/inhume_test.go

@@ -41,50 +41,56 @@ func TestInhumeTombOnTomb(t *testing.T) {
 		addr1     = oidtest.Address()
 		addr2     = oidtest.Address()
 		addr3     = oidtest.Address()
-		inhumePrm = new(meta.InhumePrm)
+		inhumePrm meta.InhumePrm
-		existsPrm = new(meta.ExistsPrm)
+		existsPrm meta.ExistsPrm
 	)
 
+	inhumePrm.WithAddresses(addr1)
+	inhumePrm.WithTombstoneAddress(addr2)
+
 	// inhume addr1 via addr2
-	_, err = db.Inhume(inhumePrm.
+	_, err = db.Inhume(inhumePrm)
-		WithAddresses(addr1).
-		WithTombstoneAddress(addr2),
-	)
 	require.NoError(t, err)
 
+	existsPrm.WithAddress(addr1)
+
 	// addr1 should become inhumed {addr1:addr2}
-	_, err = db.Exists(existsPrm.WithAddress(addr1))
+	_, err = db.Exists(existsPrm)
 	require.ErrorAs(t, err, new(apistatus.ObjectAlreadyRemoved))
 
+	inhumePrm.WithAddresses(addr3)
+	inhumePrm.WithTombstoneAddress(addr1)
+
 	// try to inhume addr3 via addr1
-	_, err = db.Inhume(inhumePrm.
+	_, err = db.Inhume(inhumePrm)
-		WithAddresses(addr3).
-		WithTombstoneAddress(addr1),
-	)
 	require.NoError(t, err)
 
 	// record with {addr1:addr2} should be removed from graveyard
 	// as a tomb-on-tomb; metabase should return ObjectNotFound
 	// NOT ObjectAlreadyRemoved since that record has been removed
 	// from graveyard but addr1 is still marked with GC
-	_, err = db.Exists(existsPrm.WithAddress(addr1))
+	_, err = db.Exists(existsPrm)
 	require.ErrorAs(t, err, new(apistatus.ObjectNotFound))
 
+	existsPrm.WithAddress(addr3)
+
 	// addr3 should be inhumed {addr3: addr1}
-	_, err = db.Exists(existsPrm.WithAddress(addr3))
+	_, err = db.Exists(existsPrm)
 	require.ErrorAs(t, err, new(apistatus.ObjectAlreadyRemoved))
 
+	inhumePrm.WithAddresses(addr1)
+	inhumePrm.WithTombstoneAddress(oidtest.Address())
+
 	// try to inhume addr1 (which is already a tombstone in graveyard)
-	_, err = db.Inhume(inhumePrm.
+	_, err = db.Inhume(inhumePrm)
-		WithAddresses(addr1).
-		WithTombstoneAddress(oidtest.Address()),
-	)
 	require.NoError(t, err)
 
+	existsPrm.WithAddress(addr1)
+
 	// record with addr1 key should not appear in graveyard
 	// (tomb can not be inhumed) but should be kept as object
 	// with GC mark
-	_, err = db.Exists(existsPrm.WithAddress(addr1))
+	_, err = db.Exists(existsPrm)
 	require.ErrorAs(t, err, new(apistatus.ObjectNotFound))
 }
 
@@ -99,7 +105,7 @@ func TestInhumeLocked(t *testing.T) {
 	var prm meta.InhumePrm
 	prm.WithAddresses(locked)
 
-	_, err = db.Inhume(&prm)
+	_, err = db.Inhume(prm)
 
 	var e apistatus.ObjectLocked
 	require.ErrorAs(t, err, &e)

pkg/local_object_storage/metabase/iterators_test.go

@@ -74,20 +74,19 @@ func TestDB_IterateCoveredByTombstones(t *testing.T) {
 	protectedLocked := oidtest.Address()
 	garbage := oidtest.Address()
 
-	prm := new(meta.InhumePrm)
+	var prm meta.InhumePrm
-
 	var err error
 
-	_, err = db.Inhume(prm.
+	prm.WithAddresses(protected1, protected2, protectedLocked)
-		WithTombstoneAddress(ts).
+	prm.WithTombstoneAddress(ts)
-		WithAddresses(protected1, protected2, protectedLocked),
+
-	)
+	_, err = db.Inhume(prm)
 	require.NoError(t, err)
 
-	_, err = db.Inhume(prm.
+	prm.WithAddresses(garbage)
-		WithAddresses(garbage).
+	prm.WithGCMark()
-		WithGCMark(),
+
-	)
+	_, err = db.Inhume(prm)
 	require.NoError(t, err)
 
 	var handled []oid.Address

pkg/local_object_storage/metabase/list.go

@@ -27,17 +27,15 @@ type ListPrm struct {
 }
 
 // WithCount sets maximum amount of addresses that ListWithCursor should return.
-func (l *ListPrm) WithCount(count uint32) *ListPrm {
+func (l *ListPrm) WithCount(count uint32) {
 	l.count = int(count)
-	return l
 }
 
 // WithCursor sets cursor for ListWithCursor operation. For initial request
 // ignore this param or use nil value. For consecutive requests, use value
 // from ListRes.
-func (l *ListPrm) WithCursor(cursor *Cursor) *ListPrm {
+func (l *ListPrm) WithCursor(cursor *Cursor) {
 	l.cursor = cursor
-	return l
 }
 
 // ListRes contains values returned from ListWithCursor operation.
@@ -63,7 +61,11 @@ func (l ListRes) Cursor() *Cursor {
 // Returns ErrEndOfListing if there are no more objects to return or count
 // parameter set to zero.
 func ListWithCursor(db *DB, count uint32, cursor *Cursor) ([]oid.Address, *Cursor, error) {
-	r, err := db.ListWithCursor(new(ListPrm).WithCount(count).WithCursor(cursor))
+	var listPrm ListPrm
+	listPrm.WithCount(count)
+	listPrm.WithCursor(cursor)
+
+	r, err := db.ListWithCursor(listPrm)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -77,7 +79,7 @@ func ListWithCursor(db *DB, count uint32, cursor *Cursor) ([]oid.Address, *Curso
 //
 // Returns ErrEndOfListing if there are no more objects to return or count
 // parameter set to zero.
-func (db *DB) ListWithCursor(prm *ListPrm) (res *ListRes, err error) {
+func (db *DB) ListWithCursor(prm ListPrm) (res *ListRes, err error) {
 	err = db.boltDB.View(func(tx *bbolt.Tx) error {
 		res = new(ListRes)
 		res.addrList, res.cursor, err = db.listWithCursor(tx, prm.count, prm.cursor)

pkg/local_object_storage/metabase/lock_test.go

@@ -78,8 +78,12 @@ func TestDB_Lock(t *testing.T) {
 		err = meta.Inhume(db, objectcore.AddressOf(obj), tombAddr)
 		require.ErrorAs(t, err, new(apistatus.ObjectLocked))
 
+		var inhumePrm meta.InhumePrm
+		inhumePrm.WithAddresses(tombAddr)
+		inhumePrm.WithGCMark()
+
 		// inhume the tombstone
-		_, err = db.Inhume(new(meta.InhumePrm).WithAddresses(tombAddr).WithGCMark())
+		_, err = db.Inhume(inhumePrm)
 		require.NoError(t, err)
 
 		// now we can inhume the object

pkg/local_object_storage/metabase/movable.go

@@ -16,12 +16,10 @@ type ToMoveItPrm struct {
 type ToMoveItRes struct{}
 
 // WithAddress sets address of the object to move into another shard.
-func (p *ToMoveItPrm) WithAddress(addr oid.Address) *ToMoveItPrm {
+func (p *ToMoveItPrm) WithAddress(addr oid.Address) {
 	if p != nil {
 		p.addr = addr
 	}
-
-	return p
 }
 
 // DoNotMovePrm groups the parameters of DoNotMove operation.
@@ -33,12 +31,10 @@ type DoNotMovePrm struct {
 type DoNotMoveRes struct{}
 
 // WithAddress sets address of the object to prevent moving into another shard.
-func (p *DoNotMovePrm) WithAddress(addr oid.Address) *DoNotMovePrm {
+func (p *DoNotMovePrm) WithAddress(addr oid.Address) {
 	if p != nil {
 		p.addr = addr
 	}
-
-	return p
 }
 
 // MovablePrm groups the parameters of Movable operation.
@@ -50,19 +46,22 @@ type MovableRes struct {
 }
 
 // AddressList returns resulting addresses of Movable operation.
-func (p *MovableRes) AddressList() []oid.Address {
+func (p MovableRes) AddressList() []oid.Address {
 	return p.addrList
 }
 
 // ToMoveIt marks object to move it into another shard.
 func ToMoveIt(db *DB, addr oid.Address) error {
-	_, err := db.ToMoveIt(new(ToMoveItPrm).WithAddress(addr))
+	var toMovePrm ToMoveItPrm
+	toMovePrm.WithAddress(addr)
+
+	_, err := db.ToMoveIt(toMovePrm)
 	return err
 }
 
 // ToMoveIt marks objects to move it into another shard. This useful for
 // faster HRW fetching.
-func (db *DB) ToMoveIt(prm *ToMoveItPrm) (res *ToMoveItRes, err error) {
+func (db *DB) ToMoveIt(prm ToMoveItPrm) (res *ToMoveItRes, err error) {
 	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
 		toMoveIt, err := tx.CreateBucketIfNotExists(toMoveItBucketName)
 		if err != nil {
@@ -77,12 +76,15 @@ func (db *DB) ToMoveIt(prm *ToMoveItPrm) (res *ToMoveItRes, err error) {
 
 // DoNotMove prevents the object to be moved into another shard.
 func DoNotMove(db *DB, addr oid.Address) error {
-	_, err := db.DoNotMove(new(DoNotMovePrm).WithAddress(addr))
+	var doNotMovePrm DoNotMovePrm
+	doNotMovePrm.WithAddress(addr)
+
+	_, err := db.DoNotMove(doNotMovePrm)
 	return err
 }
 
 // DoNotMove removes `MoveIt` mark from the object.
-func (db *DB) DoNotMove(prm *DoNotMovePrm) (res *DoNotMoveRes, err error) {
+func (db *DB) DoNotMove(prm DoNotMovePrm) (res *DoNotMoveRes, err error) {
 	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
 		toMoveIt := tx.Bucket(toMoveItBucketName)
 		if toMoveIt == nil {
@@ -97,7 +99,7 @@ func (db *DB) DoNotMove(prm *DoNotMovePrm) (res *DoNotMoveRes, err error) {
 
 // Movable returns all movable objects of DB.
 func Movable(db *DB) ([]oid.Address, error) {
-	r, err := db.Movable(new(MovablePrm))
+	r, err := db.Movable(MovablePrm{})
 	if err != nil {
 		return nil, err
 	}
@@ -106,7 +108,7 @@ func Movable(db *DB) ([]oid.Address, error) {
 }
 
 // Movable returns list of marked objects to move into other shard.
-func (db *DB) Movable(prm *MovablePrm) (*MovableRes, error) {
+func (db *DB) Movable(_ MovablePrm) (*MovableRes, error) {
 	var strAddrs []string
 
 	err := db.boltDB.View(func(tx *bbolt.Tx) error {

pkg/local_object_storage/metabase/put.go

@@ -34,21 +34,17 @@ type PutPrm struct {
 type PutRes struct{}
 
 // WithObject is a Put option to set object to save.
-func (p *PutPrm) WithObject(obj *objectSDK.Object) *PutPrm {
+func (p *PutPrm) WithObject(obj *objectSDK.Object) {
 	if p != nil {
 		p.obj = obj
 	}
-
-	return p
 }
 
 // WithBlobovniczaID is a Put option to set blobovnicza ID to save.
-func (p *PutPrm) WithBlobovniczaID(id *blobovnicza.ID) *PutPrm {
+func (p *PutPrm) WithBlobovniczaID(id *blobovnicza.ID) {
 	if p != nil {
 		p.id = id
 	}
-
-	return p
 }
 
 var (
@@ -61,10 +57,11 @@ var (
 //
 // See DB.Put docs.
 func Put(db *DB, obj *objectSDK.Object, id *blobovnicza.ID) error {
-	_, err := db.Put(new(PutPrm).
+	var putPrm PutPrm
-		WithObject(obj).
+	putPrm.WithObject(obj)
-		WithBlobovniczaID(id),
+	putPrm.WithBlobovniczaID(id)
-	)
+
+	_, err := db.Put(putPrm)
 
 	return err
 }
@@ -73,7 +70,7 @@ func Put(db *DB, obj *objectSDK.Object, id *blobovnicza.ID) error {
 // Big objects have nil blobovniczaID.
 //
 // Returns an error of type apistatus.ObjectAlreadyRemoved if object has been placed in graveyard.
-func (db *DB) Put(prm *PutPrm) (res *PutRes, err error) {
+func (db *DB) Put(prm PutPrm) (res *PutRes, err error) {
 	err = db.boltDB.Batch(func(tx *bbolt.Tx) error {
 		return db.put(tx, prm.obj, prm.id, nil)
 	})

pkg/local_object_storage/metabase/select.go

@@ -40,21 +40,17 @@ type SelectRes struct {
 }
 
 // WithContainerID is a Select option to set the container id to search in.
-func (p *SelectPrm) WithContainerID(cnr cid.ID) *SelectPrm {
+func (p *SelectPrm) WithContainerID(cnr cid.ID) {
 	if p != nil {
 		p.cnr = cnr
 	}
-
-	return p
 }
 
 // WithFilters is a Select option to set the object filters.
-func (p *SelectPrm) WithFilters(fs object.SearchFilters) *SelectPrm {
+func (p *SelectPrm) WithFilters(fs object.SearchFilters) {
 	if p != nil {
 		p.filters = fs
 	}
-
-	return p
 }
 
 // AddressList returns list of addresses of the selected objects.
@@ -64,7 +60,11 @@ func (r *SelectRes) AddressList() []oid.Address {
 
 // Select selects the objects from DB with filtering.
 func Select(db *DB, cnr cid.ID, fs object.SearchFilters) ([]oid.Address, error) {
-	r, err := db.Select(new(SelectPrm).WithFilters(fs).WithContainerID(cnr))
+	var selectPrm SelectPrm
+	selectPrm.WithFilters(fs)
+	selectPrm.WithContainerID(cnr)
+
+	r, err := db.Select(selectPrm)
 	if err != nil {
 		return nil, err
 	}
@@ -73,7 +73,7 @@ func Select(db *DB, cnr cid.ID, fs object.SearchFilters) ([]oid.Address, error)
 }
 
 // Select returns list of addresses of objects that match search filters.
-func (db *DB) Select(prm *SelectPrm) (res *SelectRes, err error) {
+func (db *DB) Select(prm SelectPrm) (res *SelectRes, err error) {
 	res = new(SelectRes)
 
 	if blindlyProcess(prm.filters) {

pkg/local_object_storage/metabase/small.go

@@ -18,12 +18,10 @@ type IsSmallRes struct {
 }
 
 // WithAddress is a IsSmall option to set the object address to check.
-func (p *IsSmallPrm) WithAddress(addr oid.Address) *IsSmallPrm {
+func (p *IsSmallPrm) WithAddress(addr oid.Address) {
 	if p != nil {
 		p.addr = addr
 	}
-
-	return p
 }
 
 // BlobovniczaID returns blobovnicza identifier.
@@ -35,7 +33,10 @@ func (r *IsSmallRes) BlobovniczaID() *blobovnicza.ID {
 // address and other parameters by default. Returns only
 // the blobovnicza identifier.
 func IsSmall(db *DB, addr oid.Address) (*blobovnicza.ID, error) {
-	r, err := db.IsSmall(new(IsSmallPrm).WithAddress(addr))
+	var isSmallPrm IsSmallPrm
+	isSmallPrm.WithAddress(addr)
+
+	r, err := db.IsSmall(isSmallPrm)
 	if err != nil {
 		return nil, err
 	}
@@ -47,7 +48,7 @@ func IsSmall(db *DB, addr oid.Address) (*blobovnicza.ID, error) {
 // Small objects stored in blobovnicza instances. Big objects stored in FS by
 // shallow path which is calculated from address and therefore it is not
 // indexed in metabase.
-func (db *DB) IsSmall(prm *IsSmallPrm) (res *IsSmallRes, err error) {
+func (db *DB) IsSmall(prm IsSmallPrm) (res *IsSmallRes, err error) {
 	res = new(IsSmallRes)
 
 	err = db.boltDB.View(func(tx *bbolt.Tx) error {

pkg/local_object_storage/shard/control.go

@@ -104,7 +104,7 @@ func (s *Shard) refillMetabase() error {
 			inhumePrm.WithTombstoneAddress(tombAddr)
 			inhumePrm.WithAddresses(tombMembers...)
 
-			_, err = s.metaBase.Inhume(&inhumePrm)
+			_, err = s.metaBase.Inhume(inhumePrm)
 			if err != nil {
 				return fmt.Errorf("could not inhume objects: %w", err)
 			}

pkg/local_object_storage/shard/gc.go

@@ -185,11 +185,8 @@ func (s *Shard) removeGarbage() {
 
 	buf := make([]oid.Address, 0, s.rmBatchSize)
 
-	iterPrm := new(meta.GarbageIterationPrm)
+	var iterPrm meta.GarbageIterationPrm
-
+	iterPrm.SetHandler(func(g meta.GarbageObject) error {
-	// iterate over metabase's objects with GC mark
-	// (no more than s.rmBatchSize objects)
-	err := s.metaBase.IterateOverGarbage(iterPrm.SetHandler(func(g meta.GarbageObject) error {
 		buf = append(buf, g.Address())
 
 		if len(buf) == s.rmBatchSize {
@@ -197,7 +194,11 @@ func (s *Shard) removeGarbage() {
 		}
 
 		return nil
-	}))
+	})
+
+	// iterate over metabase's objects with GC mark
+	// (no more than s.rmBatchSize objects)
+	err := s.metaBase.IterateOverGarbage(iterPrm)
 	if err != nil {
 		s.log.Warn("iterator over metabase graveyard failed",
 			zap.String("error", err.Error()),
@@ -232,11 +233,13 @@ func (s *Shard) collectExpiredObjects(ctx context.Context, e Event) {
 		return
 	}
 
+	var inhumePrm meta.InhumePrm
+
+	inhumePrm.WithAddresses(expired...)
+	inhumePrm.WithGCMark()
+
 	// inhume the collected objects
-	_, err = s.metaBase.Inhume(new(meta.InhumePrm).
+	_, err = s.metaBase.Inhume(inhumePrm)
-		WithAddresses(expired...).
-		WithGCMark(),
-	)
 	if err != nil {
 		s.log.Warn("could not inhume the objects",
 			zap.String("error", err.Error()),
@@ -256,7 +259,8 @@ func (s *Shard) collectExpiredTombstones(ctx context.Context, e Event) {
 	tss := make([]meta.TombstonedObject, 0, tssDeleteBatch)
 	tssExp := make([]meta.TombstonedObject, 0, tssDeleteBatch)
 
-	iterPrm := new(meta.GraveyardIterationPrm).SetHandler(func(deletedObject meta.TombstonedObject) error {
+	var iterPrm meta.GraveyardIterationPrm
+	iterPrm.SetHandler(func(deletedObject meta.TombstonedObject) error {
 		tss = append(tss, deletedObject)
 
 		if len(tss) == tssDeleteBatch {
@@ -348,7 +352,7 @@ func (s *Shard) HandleExpiredTombstones(tss []meta.TombstonedObject) {
 	pInhume.WithAddresses(tsAddrs...)
 
 	// inhume tombstones
-	_, err := s.metaBase.Inhume(&pInhume)
+	_, err := s.metaBase.Inhume(pInhume)
 	if err != nil {
 		s.log.Warn("could not mark tombstones as garbage",
 			zap.String("error", err.Error()),
@@ -381,7 +385,7 @@ func (s *Shard) HandleExpiredLocks(lockers []oid.Address) {
 	pInhume.WithAddresses(lockers...)
 	pInhume.WithGCMark()
 
-	_, err = s.metaBase.Inhume(&pInhume)
+	_, err = s.metaBase.Inhume(pInhume)
 	if err != nil {
 		s.log.Warn("failure to mark lockers as garbage",
 			zap.String("error", err.Error()),

pkg/local_object_storage/shard/head.go

@@ -71,9 +71,9 @@ func (s *Shard) Head(prm *HeadPrm) (*HeadRes, error) {
 		// otherwise object seems to be flushed to metabase
 	}
 
-	headParams := new(meta.GetPrm).
+	var headParams meta.GetPrm
-		WithAddress(prm.addr).
+	headParams.WithAddress(prm.addr)
-		WithRaw(prm.raw)
+	headParams.WithRaw(prm.raw)
 
 	res, err := s.metaBase.Get(headParams)
 	if err != nil {

pkg/local_object_storage/shard/inhume.go

@@ -61,7 +61,8 @@ func (s *Shard) Inhume(prm *InhumePrm) (*InhumeRes, error) {
 		}
 	}
 
-	metaPrm := new(meta.InhumePrm).WithAddresses(prm.target...)
+	var metaPrm meta.InhumePrm
+	metaPrm.WithAddresses(prm.target...)
 
 	if prm.tombstone != nil {
 		metaPrm.WithTombstoneAddress(*prm.tombstone)

pkg/local_object_storage/shard/list.go

@@ -118,7 +118,10 @@ func ListContainers(s *Shard) ([]cid.ID, error) {
 // Returns ErrEndOfListing if there are no more objects to return or count
 // parameter set to zero.
 func (s *Shard) ListWithCursor(prm *ListWithCursorPrm) (*ListWithCursorRes, error) {
-	metaPrm := new(meta.ListPrm).WithCount(prm.count).WithCursor(prm.cursor)
+	var metaPrm meta.ListPrm
+	metaPrm.WithCount(prm.count)
+	metaPrm.WithCursor(prm.cursor)
+
 	res, err := s.metaBase.ListWithCursor(metaPrm)
 	if err != nil {
 		return nil, fmt.Errorf("could not get list of objects: %w", err)