-VARx(ev_tstamp, now_floor); /* last time we refreshed rt_time */
-VARx(ev_tstamp, mn_now); /* monotonic clock "now" */
-VARx(ev_tstamp, rt_now);
-VARx(ev_tstamp, diff); /* difference realtime - monotonic time */
-VARx(int, method);
-
-VARx(int, have_monotonic); /* runtime */
-
-VARx(ev_tstamp, method_fudge); /* assumed typical timer resolution */
-VAR (method_modify, void (*method_modify)(EV_P_ int fd, int oev, int nev));
-VAR (method_poll , void (*method_poll)(EV_P_ ev_tstamp timeout));
-
-VARx(int, activecnt); /* number of active events */
-
-#if EV_USE_SELECT
-VARx(unsigned char *, vec_ri);
-VARx(unsigned char *, vec_ro);
-VARx(unsigned char *, vec_wi);
-VARx(unsigned char *, vec_wo);
-VARx(int, vec_max);
+VARx(ev_tstamp, now_floor) /* last time we refreshed rt_time */
+VARx(ev_tstamp, mn_now) /* monotonic clock "now" */
+VARx(ev_tstamp, rtmn_diff) /* difference realtime - monotonic time */
+VARx(int, backend)
+
+VARx(ev_tstamp, backend_fudge) /* assumed typical timer resolution */
+VAR (backend_modify, void (*backend_modify)(EV_P_ int fd, int oev, int nev))
+VAR (backend_poll , void (*backend_poll)(EV_P_ ev_tstamp timeout))
+VARx(int, backend_fd)
+
+VARx(int, postfork) /* true if we need to recreate kernel state after fork */
+VARx(int, activecnt) /* number of active events */
+
+#if EV_USE_SELECT || EV_GENWRAP
+VARx(void *, vec_ri)
+VARx(void *, vec_ro)
+VARx(void *, vec_wi)
+VARx(void *, vec_wo)
+VARx(int, vec_max)