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https://github.com/ceph/ceph-csi.git
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dbbca6ebf8
update controller-runtime to latest release. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controller
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import (
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"fmt"
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"sync"
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"k8s.io/apimachinery/pkg/util/sets"
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)
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var nameLock sync.Mutex
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var usedNames sets.Set[string]
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func checkName(name string) error {
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nameLock.Lock()
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defer nameLock.Unlock()
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if usedNames == nil {
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usedNames = sets.Set[string]{}
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}
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if usedNames.Has(name) {
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return fmt.Errorf("controller with name %s already exists. Controller names must be unique to avoid multiple controllers reporting to the same metric", name)
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}
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usedNames.Insert(name)
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return nil
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}
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