[#1819] common: Add ErrNoSpace

Add a common error for this case because it is not an error
which should increase error counter. Single error simplifies checks on
the call-site.

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>

pkg/local_object_storage/blobstor/blobovniczatree/put.go

@@ -26,8 +26,9 @@ func (b *Blobovniczas) Put(prm common.PutPrm) (common.PutRes, error) {
 	putPrm.SetMarshaledObject(prm.RawData)
 
 	var (
-		fn func(string) (bool, error)
-		id *blobovnicza.ID
+		fn      func(string) (bool, error)
+		id      *blobovnicza.ID
+		allFull = true
 	)
 
 	fn = func(p string) (bool, error) {
@@ -59,6 +60,7 @@ func (b *Blobovniczas) Put(prm common.PutPrm) (common.PutRes, error) {
 				return fn(p)
 			}
 
+			allFull = false
 			b.log.Debug("could not put object to active blobovnicza",
 				zap.String("path", filepath.Join(p, u64ToHexString(active.ind))),
 				zap.String("error", err.Error()),
@@ -77,6 +79,9 @@ func (b *Blobovniczas) Put(prm common.PutPrm) (common.PutRes, error) {
 	if err := b.iterateDeepest(prm.Address, fn); err != nil {
 		return common.PutRes{}, err
 	} else if id == nil {
+		if allFull {
+			return common.PutRes{}, common.ErrNoSpace
+		}
 		return common.PutRes{}, errPutFailed
 	}
 

pkg/local_object_storage/blobstor/common/errors.go

@@ -5,3 +5,6 @@ import "errors"
 // ErrReadOnly MUST be returned for modifying operations when the storage was opened
 // in readonly mode.
 var ErrReadOnly = errors.New("opened as read-only")
+
+// ErrNoSpace MUST be returned when there is no space to put an object on the device.
+var ErrNoSpace = errors.New("no free space")

pkg/local_object_storage/blobstor/fstree/fstree.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"syscall"
 
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/compression"
@@ -236,7 +237,15 @@ func (t *FSTree) Put(prm common.PutPrm) (common.PutRes, error) {
 	if !prm.DontCompress {
 		prm.RawData = t.Compress(prm.RawData)
 	}
-	return common.PutRes{StorageID: []byte{}}, os.WriteFile(p, prm.RawData, t.Permissions)
+
+	err := os.WriteFile(p, prm.RawData, t.Permissions)
+	if err != nil {
+		var pe *fs.PathError
+		if errors.As(err, &pe) && pe.Err == syscall.ENOSPC {
+			err = common.ErrNoSpace
+		}
+	}
+	return common.PutRes{StorageID: []byte{}}, err
 }
 
 // PutStream puts executes handler on a file opened for write.