[#1147] node: Use public fields for shard.ExistsPrm

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/local_object_storage/engine/delete.go

@@ -83,7 +83,7 @@ func (e *StorageEngine) delete(ctx context.Context, prm DeletePrm) (DeleteRes, e
 	// 2. Otherwise, search for all objects with a particular SplitID and delete them too.
 	e.iterateOverSortedShards(prm.addr, func(_ int, sh hashedShard) (stop bool) {
 		var existsPrm shard.ExistsPrm
-		existsPrm.SetAddress(prm.addr)
+		existsPrm.Address = prm.addr
 
 		resExists, err := sh.Exists(ctx, existsPrm)
 		if err != nil {

pkg/local_object_storage/engine/engine_test.go

@@ -63,7 +63,10 @@ func benchmarkExists(b *testing.B, shardNum int) {
 	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		ok, _, err := e.exists(context.Background(), addr, oid.Address{})
+		var shPrm shard.ExistsPrm
+		shPrm.Address = addr
+		shPrm.ParentAddress = oid.Address{}
+		ok, _, err := e.exists(context.Background(), shPrm)
 		if err != nil || ok {
 			b.Fatalf("%t %v", ok, err)
 		}

pkg/local_object_storage/engine/exists.go

@@ -8,18 +8,16 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 )
 
-func (e *StorageEngine) exists(ctx context.Context, addr oid.Address, parentAddr oid.Address) (bool, bool, error) {
-	var shPrm shard.ExistsPrm
-	shPrm.SetAddress(addr)
-	shPrm.SetParentAddress(parentAddr)
+// exists return in the first value true if object exists.
+// Second return value marks is parent object locked.
+func (e *StorageEngine) exists(ctx context.Context, shPrm shard.ExistsPrm) (bool, bool, error) {
 	alreadyRemoved := false
 	exists := false
 	locked := false
 
-	e.iterateOverSortedShards(addr, func(_ int, sh hashedShard) (stop bool) {
+	e.iterateOverSortedShards(shPrm.Address, func(_ int, sh hashedShard) (stop bool) {
 		res, err := sh.Exists(ctx, shPrm)
 		if err != nil {
 			if client.IsErrObjectAlreadyRemoved(err) {

pkg/local_object_storage/engine/inhume.go

@@ -142,7 +142,7 @@ func (e *StorageEngine) inhumeAddr(ctx context.Context, addr oid.Address, prm sh
 		}()
 
 		if checkExists {
-			existPrm.SetAddress(addr)
+			existPrm.Address = addr
 			exRes, err := sh.Exists(ctx, existPrm)
 			if err != nil {
 				if client.IsErrObjectAlreadyRemoved(err) || shard.IsErrObjectExpired(err) {

pkg/local_object_storage/engine/lock.go

@@ -78,7 +78,7 @@ func (e *StorageEngine) lockSingle(ctx context.Context, idCnr cid.ID, locker, lo
 
 		if checkExists {
 			var existsPrm shard.ExistsPrm
-			existsPrm.SetAddress(addrLocked)
+			existsPrm.Address = addrLocked
 
 			exRes, err := sh.Exists(ctx, existsPrm)
 			if err != nil {

pkg/local_object_storage/engine/put.go

@@ -85,7 +85,10 @@ func (e *StorageEngine) put(ctx context.Context, prm PutPrm) error {
 		parent.SetObject(prm.obj.ECHeader().Parent())
 		parent.SetContainer(addr.Container())
 	}
-	existed, locked, err := e.exists(ctx, addr, parent)
+	var shPrm shard.ExistsPrm
+	shPrm.Address = addr
+	shPrm.ParentAddress = parent
+	existed, locked, err := e.exists(ctx, shPrm)
 	if err != nil {
 		return err
 	}
@@ -138,7 +141,7 @@ func (e *StorageEngine) putToShard(ctx context.Context, sh hashedShard, pool uti
 		defer close(exitCh)
 
 		var existPrm shard.ExistsPrm
-		existPrm.SetAddress(addr)
+		existPrm.Address = addr
 
 		exists, err := sh.Exists(ctx, existPrm)
 		if err != nil {

pkg/local_object_storage/engine/remove_copies.go

@@ -115,7 +115,7 @@ func (e *StorageEngine) removeObjects(ctx context.Context, ch <-chan oid.Address
 		found := false
 		for i := range shards {
 			var existsPrm shard.ExistsPrm
-			existsPrm.SetAddress(addr)
+			existsPrm.Address = addr
 
 			res, err := shards[i].Exists(ctx, existsPrm)
 			if err != nil {