blob: f6e56614e5a6b01d6f5e6b8641bbdeb4dd934512 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
package cache
import (
"time"
"log"
)
type CacheItem struct {
Expires time.Time
Value interface{}
}
type Cache struct {
items map[int]CacheItem
}
func New() *Cache {
c := &Cache{ make(map[int]CacheItem) }
go c.ticker()
return c
}
func (c *Cache) ticker() {
for _ = range time.NewTicker(time.Second * 1).C {
t := time.Now()
for key, item := range c.items {
if t.Sub(item.Expires) > 0 {
log.Println("cache delete", key)
delete(c.items, key)
}
}
}
}
func (c *Cache) Insert(key int, item interface{}) {
c.items[key] = CacheItem{ time.Now().Add(time.Minute * 15), item }
}
func (c *Cache) Remove(key int) {
delete(c.items, key)
}
func (c *Cache) Clear() {
c.items = make(map[int]CacheItem)
}
func (c *Cache) Get(key int) (interface{}, bool) {
if ci, ok := c.items[key]; ok {
return ci.Value, true
}
return nil, false
}
func (c *Cache) Has(key int) bool {
_, ok := c.items[key]
return ok
}
|
