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96aa4fb5d2
This allows us to hide - the mutex handling - the initialization as implementation details. Signed-off-by: Maria Ntalla <mntalla@pivotal.io>
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
/*
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Copyright 2019 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 csi
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import (
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"sync"
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utilversion "k8s.io/apimachinery/pkg/util/version"
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)
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// Driver is a description of a CSI Driver, defined by an enpoint and the
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// highest CSI version supported
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type Driver struct {
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endpoint string
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highestSupportedVersion *utilversion.Version
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}
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// DriversStore holds a list of CSI Drivers
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type DriversStore struct {
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store
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sync.RWMutex
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}
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type store map[string]Driver
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// Get lets you retrieve a CSI Driver by name.
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// This method is protected by a mutex.
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func (s *DriversStore) Get(driverName string) (Driver, bool) {
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s.RLock()
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defer s.RUnlock()
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driver, ok := s.store[driverName]
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return driver, ok
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}
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// Set lets you save a CSI Driver to the list and give it a specific name.
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// This method is protected by a mutex.
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func (s *DriversStore) Set(driverName string, driver Driver) {
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s.Lock()
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defer s.Unlock()
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if s.store == nil {
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s.store = store{}
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}
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s.store[driverName] = driver
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}
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// Delete lets you delete a CSI Driver by name.
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// This method is protected by a mutex.
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func (s *DriversStore) Delete(driverName string) {
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s.Lock()
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defer s.Unlock()
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delete(s.store, driverName)
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}
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// Clear deletes all entries in the store.
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// This methiod is protected by a mutex.
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func (s *DriversStore) Clear() {
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s.Lock()
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defer s.Unlock()
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s.store = store{}
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}
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