42 lines
622 B
Go
42 lines
622 B
Go
/* SPDX-License-Identifier: MIT
|
|
*
|
|
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
|
|
*/
|
|
|
|
package device
|
|
|
|
import (
|
|
"sync/atomic"
|
|
)
|
|
|
|
/* Atomic Boolean */
|
|
|
|
const (
|
|
AtomicFalse = int32(iota)
|
|
AtomicTrue
|
|
)
|
|
|
|
type AtomicBool struct {
|
|
int32
|
|
}
|
|
|
|
func (a *AtomicBool) Get() bool {
|
|
return atomic.LoadInt32(&a.int32) == AtomicTrue
|
|
}
|
|
|
|
func (a *AtomicBool) Swap(val bool) bool {
|
|
flag := AtomicFalse
|
|
if val {
|
|
flag = AtomicTrue
|
|
}
|
|
return atomic.SwapInt32(&a.int32, flag) == AtomicTrue
|
|
}
|
|
|
|
func (a *AtomicBool) Set(val bool) {
|
|
flag := AtomicFalse
|
|
if val {
|
|
flag = AtomicTrue
|
|
}
|
|
atomic.StoreInt32(&a.int32, flag)
|
|
}
|