contrib/libevent/event.c

1362 		ev->ev_pncalls = &ncalls;
1368 			ev->ev_pncalls = NULL;
1377 				ev->ev_pncalls = NULL;
2133 	ev->ev_pncalls = NULL;
2637 	 * we can race on ev_ncalls and ev_pncalls below. */
2698 				if (ev->ev_ncalls && ev->ev_pncalls) {
2700 					*ev->ev_pncalls = 0;
2837 		if (ev->ev_ncalls && ev->ev_pncalls) {
2839 			*ev->ev_pncalls = 0;
2963 		ev->ev_pncalls = NULL;