'If a signal handler is installed and siginterrupt is called with
a false value for the second argument, when that signal arrives, it
does not interrupt a syscall that\'s in progress.'

def test_siginterrupt_off(self):

    signal.siginterrupt(self.signum, 0)
    i = self.readpipe_interrupted()
    self.assertFalse(i)
    i = self.readpipe_interrupted()
    self.assertFalse(i)
