ppid()
public
Returns the process id of the parent of this process. Returns untrustworthy
value on Win32/64. Not available on all platforms.
puts "I am #{Process.pid}"
Process.fork { puts "Dad is #{Process.ppid}" }
produces:
I am 27417
Dad is 27417
static VALUE
get_ppid(void)
{
rb_secure(2);
return PIDT2NUM(getppid());
}