+ periodics [((W)w)->active - 1] = periodics [periodiccnt];
+ adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
+ }
+
+ ev_stop (EV_A_ (W)w);
+}
+
+void
+ev_periodic_again (EV_P_ ev_periodic *w)
+{
+ /* TODO: use adjustheap and recalculation */
+ ev_periodic_stop (EV_A_ w);
+ ev_periodic_start (EV_A_ w);
+}
+#endif
+
+void
+ev_idle_start (EV_P_ ev_idle *w)
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ ev_start (EV_A_ (W)w, ++idlecnt);
+ array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
+ idles [idlecnt - 1] = w;
+}
+
+void
+ev_idle_stop (EV_P_ ev_idle *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ {
+ int active = ((W)w)->active;
+ idles [active - 1] = idles [--idlecnt];
+ ((W)idles [active - 1])->active = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+}
+
+void
+ev_prepare_start (EV_P_ ev_prepare *w)
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ ev_start (EV_A_ (W)w, ++preparecnt);
+ array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
+ prepares [preparecnt - 1] = w;
+}
+
+void
+ev_prepare_stop (EV_P_ ev_prepare *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ {
+ int active = ((W)w)->active;
+ prepares [active - 1] = prepares [--preparecnt];
+ ((W)prepares [active - 1])->active = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+}
+
+void
+ev_check_start (EV_P_ ev_check *w)
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ ev_start (EV_A_ (W)w, ++checkcnt);
+ array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
+ checks [checkcnt - 1] = w;
+}
+
+void
+ev_check_stop (EV_P_ ev_check *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ {
+ int active = ((W)w)->active;
+ checks [active - 1] = checks [--checkcnt];
+ ((W)checks [active - 1])->active = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+}
+
+#ifndef SA_RESTART
+# define SA_RESTART 0
+#endif
+
+void
+ev_signal_start (EV_P_ ev_signal *w)
+{
+#if EV_MULTIPLICITY
+ assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
+#endif
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ assert (("ev_signal_start called with illegal signal number", w->signum > 0));
+
+ ev_start (EV_A_ (W)w, 1);
+ array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
+ wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
+
+ if (!((WL)w)->next)
+ {
+#if _WIN32
+ signal (w->signum, sighandler);
+#else