evbuffer_setcb   2943 opal/mca/event/libevent2022/libevent/buffer.c evbuffer_setcb(struct evbuffer *buffer, evbuffer_cb cb, void *cbarg)
evbuffer_setcb    146 opal/mca/event/libevent2022/libevent/opal_rename.h #define evbuffer_setcb                                        opal_libevent2022_evbuffer_setcb