static int handlesig(int signo, void *data);

static void quitsignal(int signo);

static void sigchld(int unused);

static struct wl_event_loop *eventloop;
static struct wl_event_source *sighandler[4];

	int i;

	for (i = 0; i < LENGTH(sighandler); i++)
		wl_event_source_remove(sighandler[i]);

	kb->key_repeat_source = wl_event_loop_add_timer(
			wl_display_get_event_loop(dpy), keyrepeat, kb);

	kb->key_repeat_source = wl_event_loop_add_timer(eventloop, keyrepeat, kb);

}
int
handlesig(int signo, void *data)
{
	if (signo == SIGCHLD) {
#ifdef XWAYLAND
		siginfo_t in;
		/* wlroots expects to reap the XWayland process itself, so we
		 * use WNOWAIT to keep the child waitable until we know it's not
		 * XWayland.
		 */
		while (!waitid(P_ALL, 0, &in, WEXITED|WNOHANG|WNOWAIT) && in.si_pid
				&& (!xwayland || in.si_pid != xwayland->server->pid))
			waitpid(in.si_pid, NULL, 0);
#else
		while (waitpid(-1, NULL, WNOHANG) > 0);
#endif
	} else if (signo == SIGINT || signo == SIGTERM) {
		quit(NULL);
	}
	return 0;

}
void
quitsignal(int signo)
{
	quit(NULL);

	struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = SIG_IGN};
	sigemptyset(&sa.sa_mask);

	/* If nobody is reading the status output, don't terminate */
	sigaction(SIGPIPE, &sa, NULL);

	int layer;

	int i, sig[] = {SIGCHLD, SIGINT, SIGTERM, SIGPIPE};

	/* Set up signal handlers */
	struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = sigchld};
	sigemptyset(&sa.sa_mask);
	sigaction(SIGCHLD, &sa, NULL);
	sa.sa_handler = quitsignal;
	sigaction(SIGINT, &sa, NULL);
	sigaction(SIGTERM, &sa, NULL);

	eventloop = wl_display_get_event_loop(dpy);
	for (i = 0; i < LENGTH(sighandler); i++)
		sighandler[i] = wl_event_loop_add_signal(eventloop, sig[i], handlesig, NULL);

	for (layer = 0; layer < NUM_LAYERS; layer++)
		layers[layer] = wlr_scene_tree_create(&scene->tree);

	for (i = 0; i < NUM_LAYERS; i++)
		layers[i] = wlr_scene_tree_create(&scene->tree);

sigchld(int unused)
{
#ifdef XWAYLAND
	siginfo_t in;
	/* We should be able to remove this function in favor of a simple
	 *	struct sigaction sa = {.sa_handler = SIG_IGN};
	 * 	sigaction(SIGCHLD, &sa, NULL);
	 * but the Xwayland implementation in wlroots currently prevents us from
	 * setting our own disposition for SIGCHLD.
	 */
	/* WNOWAIT leaves the child in a waitable state, in case this is the
	 * XWayland process
	 */
	while (!waitid(P_ALL, 0, &in, WEXITED|WNOHANG|WNOWAIT) && in.si_pid
			&& (!xwayland || in.si_pid != xwayland->server->pid))
		waitpid(in.si_pid, NULL, 0);
#else
	while (waitpid(-1, NULL, WNOHANG) > 0);
#endif
}
void