combined_read_cb 561 opal/mca/event/libevent2022/libevent/test/regress.c event_set(&r1.ev, pair[0], EV_READ, combined_read_cb, &r1); combined_read_cb 563 opal/mca/event/libevent2022/libevent/test/regress.c event_set(&r2.ev, pair[1], EV_READ, combined_read_cb, &r2);