tcp_callout
struct tcp_callout inp_tp_rexmt;
struct tcp_callout inp_tp_persist;
struct tcp_callout inp_tp_keep;
struct tcp_callout inp_tp_2msl;
struct tcp_callout inp_tp_delack;
tcp_callout_init(struct tcp_callout *tc, uint32_t task)
tcp_callout_active(struct tcpcb *_tp, struct tcp_callout *_tc)
tcp_callout_pending(struct tcpcb *_tp, struct tcp_callout *_tc)
tcp_callout_stop(struct tcpcb *_tp, struct tcp_callout *_tc)
tcp_callout_terminate(struct tcpcb *_tp, struct tcp_callout *_tc)
tcp_callout_reset(struct tcpcb *_tp, struct tcp_callout *_tc, int _to_ticks,
struct tcp_callout *tt_rexmt; /* retransmit timer */
struct tcp_callout *tt_persist;/* retransmit persistence */
struct tcp_callout *tt_keep; /* keepalive */
struct tcp_callout *tt_2msl; /* 2*msl TIME_WAIT timer */
struct tcp_callout *tt_delack; /* delayed ACK timer */