Fork syscall in go

fork.go

package main

import (
	"fmt"
	"syscall"
)

func main() {
	a := 10
	// NOTE: this does not actually work in any non-trivial applications.
	id, _, _ := syscall.Syscall(syscall.SYS_FORK, 0, 0, 0)
	if id == 0 {
		fmt.Println("In child:", a, &a)
		a++
		fmt.Println("In child:", a, &a)
	} else {
		fmt.Println("In parent:", a, &a)
		a = a + 10
		fmt.Println("In parent:", a, &a)
	}
	// In parent: 10 0xc0000180b0
	// In parent: 20 0xc0000180b0
	// In child: 10 0xc0000180b0
	// In child: 11 0xc0000180b0
}