/
gtype_int32.go
85 lines (70 loc) · 2.2 KB
/
gtype_int32.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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
// 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/gogf/gf.
package gtype
import (
"strconv"
"sync/atomic"
"github.com/gogf/gf/v2/util/gconv"
)
// Int32 is a struct for concurrent-safe operation for type int32.
type Int32 struct {
value int32
}
// NewInt32 creates and returns a concurrent-safe object for int32 type,
// with given initial value `value`.
func NewInt32(value ...int32) *Int32 {
if len(value) > 0 {
return &Int32{
value: value[0],
}
}
return &Int32{}
}
// Clone clones and returns a new concurrent-safe object for int32 type.
func (v *Int32) Clone() *Int32 {
return NewInt32(v.Val())
}
// Set atomically stores `value` into t.value and returns the previous value of t.value.
func (v *Int32) Set(value int32) (old int32) {
return atomic.SwapInt32(&v.value, value)
}
// Val atomically loads and returns t.value.
func (v *Int32) Val() int32 {
return atomic.LoadInt32(&v.value)
}
// Add atomically adds `delta` to t.value and returns the new value.
func (v *Int32) Add(delta int32) (new int32) {
return atomic.AddInt32(&v.value, delta)
}
// Cas executes the compare-and-swap operation for value.
func (v *Int32) Cas(old, new int32) (swapped bool) {
return atomic.CompareAndSwapInt32(&v.value, old, new)
}
// String implements String interface for string printing.
func (v *Int32) String() string {
return strconv.Itoa(int(v.Val()))
}
// MarshalJSON implements the interface MarshalJSON for json.Marshal.
func (v Int32) MarshalJSON() ([]byte, error) {
return []byte(strconv.Itoa(int(v.Val()))), nil
}
// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
func (v *Int32) UnmarshalJSON(b []byte) error {
v.Set(gconv.Int32(string(b)))
return nil
}
// UnmarshalValue is an interface implement which sets any type of value for `v`.
func (v *Int32) UnmarshalValue(value interface{}) error {
v.Set(gconv.Int32(value))
return nil
}
// DeepCopy implements interface for deep copy of current type.
func (v *Int32) DeepCopy() interface{} {
if v == nil {
return nil
}
return NewInt32(v.Val())
}