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pkg/controller/devicetainteviction/uid_cache.go
46 строк
1 KB
Patrick Ohly
DRA device taints: avoid unnecessary Pod lookup
27 фев 2026, 16:38
27 фев 2026, 16:38
29e9236
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/* Copyright 2022 The Kubernetes Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package devicetainteviction import ( "k8s.io/utils/lru" "k8s.io/apimachinery/pkg/types" ) // uidCache is an LRU cache for uid. type uidCache struct { cache *lru.Cache } // newUIDCache returns a uidCache. func newUIDCache(maxCacheEntries int) *uidCache { return &uidCache{ cache: lru.New(maxCacheEntries), } } // add adds a uid to the cache. func (c *uidCache) add(uid types.UID) { c.cache.Add(uid, nil) } // has returns if a uid is in the cache. func (c *uidCache) has(uid types.UID) bool { _, found := c.cache.Get(uid) return found }