serrno           3826 opal/mca/event/libevent2022/libevent/http.c 	int serrno;
serrno           3856 opal/mca/event/libevent2022/libevent/http.c 	serrno = EVUTIL_SOCKET_ERROR();
serrno           3858 opal/mca/event/libevent2022/libevent/http.c 	EVUTIL_SET_SOCKET_ERROR(serrno);