From 6ed85ff1e1c2499f50b4f6c36d79849547a1696f Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Wed, 16 Feb 2022 01:20:44 +0300
Subject: [PATCH] [#1175] shard: Implement Lock operation

Implement `Shard.Lock` method which required rw mode and calls `Lock` on
underlying metabase.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 pkg/local_object_storage/shard/lock.go | 27 ++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 pkg/local_object_storage/shard/lock.go

diff --git a/pkg/local_object_storage/shard/lock.go b/pkg/local_object_storage/shard/lock.go
new file mode 100644
index 000000000..0ef064580
--- /dev/null
+++ b/pkg/local_object_storage/shard/lock.go
@@ -0,0 +1,27 @@
+package shard
+
+import (
+	"fmt"
+
+	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
+)
+
+// Lock marks objects as locked with another object. All objects from the
+// specified container.
+//
+// Allows locking regular objects only (otherwise returns apistatus.IrregularObjectLock).
+//
+// Locked list should be unique. Panics if it is empty.
+func (s *Shard) Lock(idCnr cid.ID, locker oid.ID, locked []oid.ID) error {
+	if s.GetMode() == ModeReadOnly {
+		return ErrReadOnlyMode
+	}
+
+	err := s.metaBase.Lock(idCnr, locker, locked)
+	if err != nil {
+		return fmt.Errorf("metabase lock: %w", err)
+	}
+
+	return nil
+}