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5e089a2cd1
Signed-off-by: Connor <zbk602423539@gmail.com> Co-authored-by: Nick Cameron <nrc@ncameron.org> Co-authored-by: linning <linningde25@gmail.com> Co-authored-by: YangKeao <keao.yang@yahoo.com> Co-authored-by: andylokandy <andylokandy@hotmail.com> Co-authored-by: Iosmanthus Teng <myosmanthustree@gmail.com>
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
// Copyright 2017 PingCAP, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cache
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// Item is the cache entry.
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type Item struct {
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Key uint64
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Value interface{}
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}
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// Cache is an interface for cache system
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type Cache interface {
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// Put puts an item into cache.
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Put(key uint64, value interface{})
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// Get retrives an item from cache.
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Get(key uint64) (interface{}, bool)
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// Peek reads an item from cache. The action is no considered 'Use'.
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Peek(key uint64) (interface{}, bool)
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// Remove eliminates an item from cache.
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Remove(key uint64)
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// Elems return all items in cache.
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Elems() []*Item
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// Len returns current cache size
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Len() int
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}
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