struct sockaddr *address,intsocklen,void*context){structevent_base*base=evconnlistener_get_base(listener);structbufferevent*bev=bufferevent_socket_new(base,fd,BEV_OPT_CLOSE_ON_FREE);bufferevent_setcb(bev, echo_read_cb,NULL, echo_event_cb,NULL); bufferevent_enable(bev, EV_READ | EV_WRITE); }...