-
Notifications
You must be signed in to change notification settings - Fork 3
/
interface.go
43 lines (36 loc) · 1.09 KB
/
interface.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
// Copyright 2018 gf Author(https://github.com/snail007/gf). 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/snail007/gf.
package gtype
import (
"sync/atomic"
)
type Interface struct {
value atomic.Value
}
// NewInterface returns a concurrent-safe object for interface{} type,
// with given initial value <value>.
func NewInterface(value ...interface{}) *Interface {
t := &Interface{}
if len(value) > 0 && value[0] != nil {
t.value.Store(value[0])
}
return t
}
// Clone clones and returns a new concurrent-safe object for interface{} type.
func (v *Interface) Clone() *Interface {
return NewInterface(v.Val())
}
// Set atomically stores <value> into t.value and returns the previous value of t.value.
// Note: The parameter <value> cannot be nil.
func (v *Interface) Set(value interface{}) (old interface{}) {
old = v.Val()
v.value.Store(value)
return
}
// Val atomically loads t.value.
func (v *Interface) Val() interface{} {
return v.value.Load()
}