TIME_LT
if (TIME_LT(cur_time, pii->pii_snxt_time))
TIME_LT(pii->pii_snxt_time, pii->pii_fd_snxt_basetime)) {
if (TIME_LT(timeout, cur_time)) {
if (TIME_LT(pfinfo.pf_tff, pi_tff))
if (TIME_LT(timeout, now)) {