ev_two 967 opal/mca/event/libevent2022/libevent/test/regress.c struct event ev_one, ev_two; ev_two 975 opal/mca/event/libevent2022/libevent/test/regress.c evsignal_set(&ev_two, SIGALRM, signal_cb, &ev_two); ev_two 976 opal/mca/event/libevent2022/libevent/test/regress.c evsignal_add(&ev_two, NULL); ev_two 988 opal/mca/event/libevent2022/libevent/test/regress.c if (evsignal_del(&ev_two) == -1)