forked from gopherjs/gopherjs
/
atomic.go
185 lines (151 loc) · 2.99 KB
/
atomic.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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
// +build js
package atomic
import (
"unsafe"
"github.com/gopherjs/gopherjs/js"
)
func SwapInt32(addr *int32, new int32) int32 {
old := *addr
*addr = new
return old
}
func SwapInt64(addr *int64, new int64) int64 {
old := *addr
*addr = new
return old
}
func SwapUint32(addr *uint32, new uint32) uint32 {
old := *addr
*addr = new
return old
}
func SwapUint64(addr *uint64, new uint64) uint64 {
old := *addr
*addr = new
return old
}
func SwapUintptr(addr *uintptr, new uintptr) uintptr {
old := *addr
*addr = new
return old
}
func SwapPointer(addr *unsafe.Pointer, new unsafe.Pointer) unsafe.Pointer {
old := *addr
*addr = new
return old
}
func CompareAndSwapInt32(addr *int32, old, new int32) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func CompareAndSwapInt64(addr *int64, old, new int64) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func CompareAndSwapUint32(addr *uint32, old, new uint32) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func CompareAndSwapUint64(addr *uint64, old, new uint64) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func CompareAndSwapUintptr(addr *uintptr, old, new uintptr) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func CompareAndSwapPointer(addr *unsafe.Pointer, old, new unsafe.Pointer) bool {
if *addr == old {
*addr = new
return true
}
return false
}
func AddInt32(addr *int32, delta int32) int32 {
new := *addr + delta
*addr = new
return new
}
func AddUint32(addr *uint32, delta uint32) uint32 {
new := *addr + delta
*addr = new
return new
}
func AddInt64(addr *int64, delta int64) int64 {
new := *addr + delta
*addr = new
return new
}
func AddUint64(addr *uint64, delta uint64) uint64 {
new := *addr + delta
*addr = new
return new
}
func AddUintptr(addr *uintptr, delta uintptr) uintptr {
new := *addr + delta
*addr = new
return new
}
func LoadInt32(addr *int32) int32 {
return *addr
}
func LoadInt64(addr *int64) int64 {
return *addr
}
func LoadUint32(addr *uint32) uint32 {
return *addr
}
func LoadUint64(addr *uint64) uint64 {
return *addr
}
func LoadUintptr(addr *uintptr) uintptr {
return *addr
}
func LoadPointer(addr *unsafe.Pointer) unsafe.Pointer {
return *addr
}
func StoreInt32(addr *int32, val int32) {
*addr = val
}
func StoreInt64(addr *int64, val int64) {
*addr = val
}
func StoreUint32(addr *uint32, val uint32) {
*addr = val
}
func StoreUint64(addr *uint64, val uint64) {
*addr = val
}
func StoreUintptr(addr *uintptr, val uintptr) {
*addr = val
}
func StorePointer(addr *unsafe.Pointer, val unsafe.Pointer) {
*addr = val
}
func (v *Value) Load() (x interface{}) {
return v.v
}
func (v *Value) Store(x interface{}) {
if x == nil {
panic("sync/atomic: store of nil value into Value")
}
if v.v != nil && js.InternalObject(x).Get("constructor") != js.InternalObject(v.v).Get("constructor") {
panic("sync/atomic: store of inconsistently typed value into Value")
}
v.v = x
}