More specifically, if I want to make the read/write of a pointer value
atomically,
then must the pointer value be defined as a value of type unsafe.Pointer?
On Tuesday, October 11, 2016 at 10:26:21 PM UTC+8, T L wrote:
>
> package main
>
> import "unsafe"
> import "sync/atomic"
>
> type T struct {
> a *int // no ways?!
> b unsafe.Pointer
> }
>
> func (t T) A() *int {
> // cannot take the address of unsafe.Pointer(t.a)
> //return (*int)(atomic.LoadPointer(&unsafe.Pointer(t.a)))
>
> return t.a
> // no ways to read t.a atomically if unsafe.Pointer and atomic.Value
> are not considered?
> }
>
> func (t T) B() unsafe.Pointer {
> return atomic.LoadPointer(&t.b)
> }
>
> func main() {
> }
>
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