#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
+#define ev_is_pending(ev) (0 + (ev)->pending) /* true when watcher is waiting for callback invocation */
#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */
#define ev_set_priority(ev,pri) (ev)->priority = pri