nyagos shutdowns slowly when terminal's close button is pressed.

[hymkor]

According to the report from @nocd5 :

The executable built by go1.15 shutdowns enough fast , but, the one by go1.16 does too slow.

[hymkor]

This may be involved

• runtime: handling of CTRL_CLOSE_EVENT seems broken · Issue #41884 · golang/go

[hymkor]

I run this program and see Got signal: terminated and after some seconds, the terminal closes.

package main

import (
	"os"
	"os/signal"
	"fmt"
	"time"
)

func main() {
	println("Ok")
	for {
		c := make(chan os.Signal, 1)
		signal.Notify(c)

		s := <-c
		time.Sleep(time.Second) // ** ADDED THIS **
		fmt.Println("Got signal:", s)
	}
}

On runtime: handling of CTRL_CLOSE_EVENT seems broken · Issue #41884 · golang/go

you'll never see the Got signal: terminated (with Go 1.15.6, my patch fixes this).

[hymkor]

it shutdowns faster by removing syscall.SIGTERM from signal.Ignore(os.Interrupt, syscall.SIGINT, syscall.SIGTERM)