mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 13:50:01 +00:00
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
/*
|
|
Copyright 2017 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 testing
|
|
|
|
import (
|
|
"fmt"
|
|
"sync"
|
|
)
|
|
|
|
// MemStore is an implementation of CheckpointStore interface which stores checkpoint in memory.
|
|
type MemStore struct {
|
|
mem map[string][]byte
|
|
sync.Mutex
|
|
}
|
|
|
|
// NewMemStore returns an instance of MemStore
|
|
func NewMemStore() *MemStore {
|
|
return &MemStore{mem: make(map[string][]byte)}
|
|
}
|
|
|
|
// Write writes the data to the store
|
|
func (mstore *MemStore) Write(key string, data []byte) error {
|
|
mstore.Lock()
|
|
defer mstore.Unlock()
|
|
mstore.mem[key] = data
|
|
return nil
|
|
}
|
|
|
|
// Read returns data read from store
|
|
func (mstore *MemStore) Read(key string) ([]byte, error) {
|
|
mstore.Lock()
|
|
defer mstore.Unlock()
|
|
data, ok := mstore.mem[key]
|
|
if !ok {
|
|
return nil, fmt.Errorf("checkpoint is not found")
|
|
}
|
|
return data, nil
|
|
}
|
|
|
|
// Delete deletes data from the store
|
|
func (mstore *MemStore) Delete(key string) error {
|
|
mstore.Lock()
|
|
defer mstore.Unlock()
|
|
delete(mstore.mem, key)
|
|
return nil
|
|
}
|
|
|
|
// List returns all the keys from the store
|
|
func (mstore *MemStore) List() ([]string, error) {
|
|
mstore.Lock()
|
|
defer mstore.Unlock()
|
|
keys := make([]string, 0)
|
|
for key := range mstore.mem {
|
|
keys = append(keys, key)
|
|
}
|
|
return keys, nil
|
|
}
|