ev_one 967 opal/mca/event/libevent2022/libevent/test/regress.c struct event ev_one, ev_two; ev_one 972 opal/mca/event/libevent2022/libevent/test/regress.c evsignal_set(&ev_one, SIGALRM, signal_cb, &ev_one); ev_one 973 opal/mca/event/libevent2022/libevent/test/regress.c evsignal_add(&ev_one, NULL); ev_one 986 opal/mca/event/libevent2022/libevent/test/regress.c if (evsignal_del(&ev_one) == -1)