tcp_timer.h File Reference

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Macros
#define	TCPT_NTIMERS   4
#define	TCPT_REXMT   0 /* retransmit */
#define	TCPT_PERSIST   1 /* retransmit persistence */
#define	TCPT_KEEP   2 /* keep alive */
#define	TCPT_2MSL   3 /* 2*msl quiet time timer */
#define	TCPTV_MSL   ( 30*PR_SLOWHZ) /* max seg lifetime (hah!) */
#define	TCPTV_SRTTBASE
#define	TCPTV_RTOBASE   ( 3*PR_SLOWHZ) /* assumed RTO if no info */
#define	TCPTV_SRTTDFLT   ( 3*PR_SLOWHZ) /* assumed RTT if no info */
#define	TCPTV_PERSMIN   ( 5*PR_SLOWHZ) /* retransmit persistence */
#define	TCPTV_PERSMAX   ( 60*PR_SLOWHZ) /* maximum persist interval */
#define	TCPTV_KEEP_INIT   ( 75*PR_SLOWHZ) /* initial connect keep alive */
#define	TCPTV_KEEP_IDLE   (120*60*PR_SLOWHZ) /* dflt time before probing */
#define	TCPTV_KEEPINTVL   ( 75*PR_SLOWHZ) /* default probe interval */
#define	TCPTV_KEEPCNT   8 /* max probes before drop */
#define	TCPTV_MIN   ( 1*PR_SLOWHZ) /* minimum allowable value */
#define	TCPTV_REXMTMAX   ( 64*PR_SLOWHZ) /* max allowable REXMT value */
#define	TCPTV_TWTRUNC   8 /* RTO factor to truncate TW */
#define	TCP_LINGERTIME   120 /* linger at most 2 minutes */
#define	TCP_MAXRXTSHIFT   12 /* maximum retransmits */
#define	TCPT_RANGESET(tv, value, tvmin, tvmax)

Macro Definition Documentation

TCPT_RANGESET

#define TCPT_RANGESET	(		tv,
			value,
			tvmin,
			tvmax
	)

Value:

{ \
        (tv) = (value); \
        if ((u_long)(tv) < (u_long)(tvmin)) \
                (tv) = (tvmin); \
        else if ((u_long)(tv) > (u_long)(tvmax)) \
                (tv) = (tvmax); \
}

TCPTV_SRTTBASE

#define TCPTV_SRTTBASE

Value:

0                       /* base roundtrip time;
                                                   if 0, no idea yet */