Function subd_shutdown

lightningd/subd.c:872–903

}

struct subd *subd_shutdown(struct subd *sd, unsigned int seconds)
{
	struct sigaction sa, old;

	log_debug(sd->log, "Shutting down");

	tal_del_destructor(sd, destroy_subd);

	/* This should make it exit; steal so it stays around. */
	tal_steal(sd->ld, sd);
	sd->conn = tal_free(sd->conn);

	/* Set up alarm to wake us up if child doesn't exit. */
	sa.sa_handler = discard_alarm;
	sigemptyset(&sa.sa_mask);
	sa.sa_flags = 0;
	sigaction(SIGALRM, &sa, &old);
	alarm(seconds);

	if (waitpid(sd->pid, NULL, 0) > 0) {
		alarm(0);
		sigaction(SIGALRM, &old, NULL);
		list_del_from(&sd->ld->subds, &sd->list);
		return tal_free(sd);
	}

	sigaction(SIGALRM, &old, NULL);
	/* Didn't die?  This will kill it harder */
	sd->must_not_exit = false;
	destroy_subd(sd);
	return tal_free(sd);
}

void subd_shutdown_nonglobals(struct lightningd *ld)
{