evbuffer_add_buffer  867 opal/mca/event/libevent2022/libevent/buffer.c evbuffer_add_buffer(struct evbuffer *outbuf, struct evbuffer *inbuf)
evbuffer_add_buffer  100 opal/mca/event/libevent2022/libevent/opal_rename.h #define evbuffer_add_buffer                                   opal_libevent2022_evbuffer_add_buffer