>From the doc: "The finalizer for obj is scheduled to run at some arbitrary
time after obj becomes unreachable. There is no guarantee that finalizers
will run before a program exits, so typically they are useful only for
releasing non-memory resources associated with an object during a
long-running program."
On Saturday, January 28, 2017 at 6:17:37 AM UTC-7, T L wrote:
>
>
>
> package main
>
> import "time"
> import "runtime"
>
> type T1 struct{ i int }
> type T2 struct{ i int }
>
> func main() {
> t1 := new(T1)
> t2 := new(T2)
>
> runtime.SetFinalizer(t1, func(*T1) {println(1)})
> runtime.SetFinalizer(t2, func(*T2) {println(2)})
> runtime.GC()
> time.Sleep(time.Second * 2)
>
> // the program will output: 2
> // if I adjust the order of the declarations of t1 and t2,
> // the program will output: 1
> }
>
> Why the finalizer for the first declaration will not get called?
>
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