TF_LASTIDLE       244 netinet/tcp_output.c 	idle = (tp->t_flags & TF_LASTIDLE) || (tp->snd_max == tp->snd_una);
TF_LASTIDLE       255 netinet/tcp_output.c 		tp->t_flags |= TF_LASTIDLE;
TF_LASTIDLE       258 netinet/tcp_output.c 		tp->t_flags &= ~TF_LASTIDLE;