From 9014cba4cdd4a817a954906f0972c18af28107ad Mon Sep 17 00:00:00 2001 From: Dmitrii Stepanov Date: Tue, 29 Oct 2024 12:39:50 +0300 Subject: [PATCH] [#1451] placement: Return copy of slice from container nodes cache Nodes from cache could be changed by traverser, if no objectID specified. So it is required to return copy of cache's slice. Signed-off-by: Dmitrii Stepanov --- pkg/services/object_manager/placement/cache.go | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/pkg/services/object_manager/placement/cache.go b/pkg/services/object_manager/placement/cache.go index 217261877..89c609c99 100644 --- a/pkg/services/object_manager/placement/cache.go +++ b/pkg/services/object_manager/placement/cache.go @@ -44,7 +44,7 @@ func (c *ContainerNodesCache) ContainerNodes(nm *netmapSDK.NetMap, cnr cid.ID, p raw, ok := c.containerCache.Get(cnr) c.mtx.Unlock() if ok { - return raw, nil + return c.cloneResult(raw), nil } } else { c.lastEpoch = nm.Epoch() @@ -65,5 +65,16 @@ func (c *ContainerNodesCache) ContainerNodes(nm *netmapSDK.NetMap, cnr cid.ID, p c.containerCache.Add(cnr, cn) } c.mtx.Unlock() - return cn, nil + return c.cloneResult(cn), nil +} + +func (c *ContainerNodesCache) cloneResult(nodes [][]netmapSDK.NodeInfo) [][]netmapSDK.NodeInfo { + result := make([][]netmapSDK.NodeInfo, len(nodes)) + for repIdx := range nodes { + result[repIdx] = make([]netmapSDK.NodeInfo, 0, len(nodes[repIdx])) + for nodeIdx := range nodes[repIdx] { + result[repIdx] = append(result[repIdx], nodes[repIdx][nodeIdx]) + } + } + return result }