92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
// Copyright 2013 Beego Authors
|
|
// Copyright 2014 The Macaron 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 cache
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/bradfitz/gomemcache/memcache"
|
|
"github.com/unknwon/com"
|
|
"gitea.com/tango/cache"
|
|
)
|
|
|
|
// MemcacheCacher represents a memcache cache adapter implementation.
|
|
type MemcacheCacher struct {
|
|
c *memcache.Client
|
|
}
|
|
|
|
func NewItem(key string, data []byte, expire int32) *memcache.Item {
|
|
return &memcache.Item{
|
|
Key: key,
|
|
Value: data,
|
|
Expiration: expire,
|
|
}
|
|
}
|
|
|
|
// Put puts value into cache with key and expire time.
|
|
// If expired is 0, it lives forever.
|
|
func (c *MemcacheCacher) Put(key string, val interface{}, expire int64) error {
|
|
return c.c.Set(NewItem(key, []byte(com.ToStr(val)), int32(expire)))
|
|
}
|
|
|
|
// Get gets cached value by given key.
|
|
func (c *MemcacheCacher) Get(key string) interface{} {
|
|
item, err := c.c.Get(key)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
return string(item.Value)
|
|
}
|
|
|
|
// Delete deletes cached value by given key.
|
|
func (c *MemcacheCacher) Delete(key string) error {
|
|
return c.c.Delete(key)
|
|
}
|
|
|
|
// Incr increases cached int-type value by given key as a counter.
|
|
func (c *MemcacheCacher) Incr(key string) error {
|
|
_, err := c.c.Increment(key, 1)
|
|
return err
|
|
}
|
|
|
|
// Decr decreases cached int-type value by given key as a counter.
|
|
func (c *MemcacheCacher) Decr(key string) error {
|
|
_, err := c.c.Decrement(key, 1)
|
|
return err
|
|
}
|
|
|
|
// IsExist returns true if cached value exists.
|
|
func (c *MemcacheCacher) IsExist(key string) bool {
|
|
_, err := c.c.Get(key)
|
|
return err == nil
|
|
}
|
|
|
|
// Flush deletes all cached data.
|
|
func (c *MemcacheCacher) Flush() error {
|
|
return c.c.FlushAll()
|
|
}
|
|
|
|
// StartAndGC starts GC routine based on config string settings.
|
|
// AdapterConfig: 127.0.0.1:9090;127.0.0.1:9091
|
|
func (c *MemcacheCacher) StartAndGC(opt cache.Options) error {
|
|
c.c = memcache.New(strings.Split(opt.AdapterConfig, ";")...)
|
|
return nil
|
|
}
|
|
|
|
func init() {
|
|
cache.Register("memcache", &MemcacheCacher{})
|
|
}
|