/
gcache_adapter_memory_expire_sets.go
51 lines (44 loc) · 1.27 KB
/
gcache_adapter_memory_expire_sets.go
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
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/bjxujiang/gf.
package gcache
import (
"github.com/bjxujiang/gf/container/gset"
"sync"
)
type adapterMemoryExpireSets struct {
mu sync.RWMutex // expireSetMu ensures the concurrent safety of expireSets map.
expireSets map[int64]*gset.Set // expireSets is the expiring timestamp to its key set mapping, which is used for quick indexing and deleting.
}
func newAdapterMemoryExpireSets() *adapterMemoryExpireSets {
return &adapterMemoryExpireSets{
expireSets: make(map[int64]*gset.Set),
}
}
func (d *adapterMemoryExpireSets) Get(key int64) (result *gset.Set) {
d.mu.RLock()
result = d.expireSets[key]
d.mu.RUnlock()
return
}
func (d *adapterMemoryExpireSets) GetOrNew(key int64) (result *gset.Set) {
if result = d.Get(key); result != nil {
return
}
d.mu.Lock()
if es, ok := d.expireSets[key]; ok {
result = es
} else {
result = gset.New(true)
d.expireSets[key] = result
}
d.mu.Unlock()
return
}
func (d *adapterMemoryExpireSets) Delete(key int64) {
d.mu.Lock()
delete(d.expireSets, key)
d.mu.Unlock()
}