mirror of
https://github.com/talent-plan/tinykv.git
synced 2025-01-15 06:41:35 +08:00
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
|
// Copyright 2017 PingCAP, Inc.
|
||
|
|
//
|
||
|
|
// 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,
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package cache
|
||
|
|
|
||
|
|
// Item is the cache entry.
|
||
|
|
type Item struct {
|
||
|
|
Key uint64
|
||
|
|
Value interface{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cache is an interface for cache system
|
||
|
|
type Cache interface {
|
||
|
|
// Put puts an item into cache.
|
||
|
|
Put(key uint64, value interface{})
|
||
|
|
// Get retrives an item from cache.
|
||
|
|
Get(key uint64) (interface{}, bool)
|
||
|
|
// Peek reads an item from cache. The action is no considered 'Use'.
|
||
|
|
Peek(key uint64) (interface{}, bool)
|
||
|
|
// Remove eliminates an item from cache.
|
||
|
|
Remove(key uint64)
|
||
|
|
// Elems return all items in cache.
|
||
|
|
Elems() []*Item
|
||
|
|
// Len returns current cache size
|
||
|
|
Len() int
|
||
|
|
}
|