forked from cilium/cilium
/
cache.go
52 lines (44 loc) · 1.42 KB
/
cache.go
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// Copyright 2016-2017 Authors of Cilium
//
// 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 policy
type ConsumableCache struct {
cache map[NumericIdentity]*Consumable
// List of consumables representing the reserved identities
Reserved []*Consumable
Iteration int
}
func NewConsumableCache() *ConsumableCache {
return &ConsumableCache{
cache: map[NumericIdentity]*Consumable{},
Reserved: make([]*Consumable, 0),
Iteration: 1,
}
}
func (c *ConsumableCache) GetOrCreate(id NumericIdentity, lbls *Identity) *Consumable {
if _, ok := c.cache[id]; ok {
return c.cache[id]
}
c.cache[id] = NewConsumable(id, lbls, c)
return c.cache[id]
}
func (c *ConsumableCache) Lookup(id NumericIdentity) *Consumable {
v, _ := c.cache[id]
return v
}
func (c *ConsumableCache) Remove(elem *Consumable) {
delete(c.cache, elem.ID)
}
func (c *ConsumableCache) AddReserved(elem *Consumable) {
c.Reserved = append(c.Reserved, elem)
}