mirror of https://github.com/k3s-io/k3s
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
/*
|
|
Copyright 2019 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 csi
|
|
|
|
import (
|
|
"sync"
|
|
|
|
utilversion "k8s.io/apimachinery/pkg/util/version"
|
|
)
|
|
|
|
// Driver is a description of a CSI Driver, defined by an enpoint and the
|
|
// highest CSI version supported
|
|
type Driver struct {
|
|
endpoint string
|
|
highestSupportedVersion *utilversion.Version
|
|
}
|
|
|
|
// DriversStore holds a list of CSI Drivers
|
|
type DriversStore struct {
|
|
store
|
|
sync.RWMutex
|
|
}
|
|
|
|
type store map[string]Driver
|
|
|
|
// Get lets you retrieve a CSI Driver by name.
|
|
// This method is protected by a mutex.
|
|
func (s *DriversStore) Get(driverName string) (Driver, bool) {
|
|
s.RLock()
|
|
defer s.RUnlock()
|
|
|
|
driver, ok := s.store[driverName]
|
|
return driver, ok
|
|
}
|
|
|
|
// Set lets you save a CSI Driver to the list and give it a specific name.
|
|
// This method is protected by a mutex.
|
|
func (s *DriversStore) Set(driverName string, driver Driver) {
|
|
s.Lock()
|
|
defer s.Unlock()
|
|
|
|
if s.store == nil {
|
|
s.store = store{}
|
|
}
|
|
|
|
s.store[driverName] = driver
|
|
}
|
|
|
|
// Delete lets you delete a CSI Driver by name.
|
|
// This method is protected by a mutex.
|
|
func (s *DriversStore) Delete(driverName string) {
|
|
s.Lock()
|
|
defer s.Unlock()
|
|
|
|
delete(s.store, driverName)
|
|
}
|
|
|
|
// Clear deletes all entries in the store.
|
|
// This methiod is protected by a mutex.
|
|
func (s *DriversStore) Clear() {
|
|
s.Lock()
|
|
defer s.Unlock()
|
|
|
|
s.store = store{}
|
|
}
|