cib_ev_fd 300 cib/main.c int cib_ev_fd; cib_ev_fd 344 cib/main.c ret = (*ccm_api_activate) (cib_ev_token, &cib_ev_fd); cib_ev_fd 367 cib/main.c mainloop_add_fd("heartbeat-ccm", G_PRIORITY_MEDIUM, cib_ev_fd, cib_ev_token, &ccm_fd_callbacks);