# Socket observer
class NativeSocketObserver
	# FIXME this implementation is broken. `reads`, `write` and `except`
	# are boxed objects, passing them to a C function is illegal.
	fun select(max: NativeSocket, reads: nullable NativeSocketSet, write: nullable NativeSocketSet,
			 except: nullable NativeSocketSet, timeout: NativeTimeval): Int `{
		fd_set *rds = NULL,
		       *wts = NULL,
		       *exs = NULL;
		struct timeval *tm = NULL;
		if (reads != NULL) rds = (fd_set*)reads;
		if (write != NULL) wts = (fd_set*)write;
		if (except != NULL) exs = (fd_set*)except;
		if (timeout != NULL) tm = (struct timeval*)timeout;
		return select(*max, rds, wts, exs, tm);
	`}
end