mirror of https://github.com/k3s-io/k3s
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
/*
|
|
Copyright 2014 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 cache
|
|
|
|
import (
|
|
"k8s.io/apimachinery/pkg/util/clock"
|
|
"k8s.io/apimachinery/pkg/util/sets"
|
|
)
|
|
|
|
type fakeThreadSafeMap struct {
|
|
ThreadSafeStore
|
|
deletedKeys chan<- string
|
|
}
|
|
|
|
func (c *fakeThreadSafeMap) Delete(key string) {
|
|
if c.deletedKeys != nil {
|
|
c.ThreadSafeStore.Delete(key)
|
|
c.deletedKeys <- key
|
|
}
|
|
}
|
|
|
|
// FakeExpirationPolicy keeps the list for keys which never expires.
|
|
type FakeExpirationPolicy struct {
|
|
NeverExpire sets.String
|
|
RetrieveKeyFunc KeyFunc
|
|
}
|
|
|
|
// IsExpired used to check if object is expired.
|
|
func (p *FakeExpirationPolicy) IsExpired(obj *TimestampedEntry) bool {
|
|
key, _ := p.RetrieveKeyFunc(obj)
|
|
return !p.NeverExpire.Has(key)
|
|
}
|
|
|
|
// NewFakeExpirationStore creates a new instance for the ExpirationCache.
|
|
func NewFakeExpirationStore(keyFunc KeyFunc, deletedKeys chan<- string, expirationPolicy ExpirationPolicy, cacheClock clock.Clock) Store {
|
|
cacheStorage := NewThreadSafeStore(Indexers{}, Indices{})
|
|
return &ExpirationCache{
|
|
cacheStorage: &fakeThreadSafeMap{cacheStorage, deletedKeys},
|
|
keyFunc: keyFunc,
|
|
clock: cacheClock,
|
|
expirationPolicy: expirationPolicy,
|
|
}
|
|
}
|