tcpstat.h

来自「TCP-IP红宝书源代码」· C头文件 代码 · 共 48 行

/* tcpstat.h */

/*	The union returned by the TCP STATUS control call		*/
struct tcpstat {
	int	ts_type;	/* which kind of TCP status?		*/
	union {
		struct {
			long	tsu_connects;	/* # connections	*/
			long	tsu_aborts;	/* # aborts		*/
			long	tsu_retrans;	/* # retransmissions	*/
		} T_unt;
		struct {
			IPaddr	tsu_laddr;	/* local IP		*/
			short	tsu_lport;	/* local TCP port	*/
			IPaddr	tsu_faddr;	/* foreign IP		*/
			short	tsu_fport;	/* foreign TCP port	*/
			short	tsu_rwin;	/* receive window	*/
			short	tsu_swin;	/* peer's window	*/
			short	tsu_state;	/* TCP state		*/
			long	tsu_unacked;	/* bytes unacked	*/
			int	tsu_prec;	/* IP precedence	*/
		} T_unc;
		struct {
			long	tsu_requests;	/* # connect requests	*/
			long	tsu_qmax;	/* max queue length	*/
		} T_uns;
	} T_un;
};

#define	ts_connects	T_un.T_unt.tsu_connects
#define	ts_aborts	T_un.T_unt.tsu_aborts
#define	ts_retrans	T_un.T_unt.tsu_retrans

#define	ts_laddr	T_un.T_unc.tsu_laddr
#define	ts_lport	T_un.T_unc.tsu_lport
#define	ts_faddr	T_un.T_unc.tsu_faddr
#define	ts_fport	T_un.T_unc.tsu_fport
#define	ts_rwin		T_un.T_unc.tsu_rwin
#define	ts_swin		T_un.T_unc.tsu_swin
#define	ts_state	T_un.T_unc.tsu_state
#define	ts_unacked	T_un.T_unc.tsu_unacked
#define	ts_prec		T_un.T_unc.tsu_prec

#define	ts_requests	T_un.T_uns.tsu_requests
#define	ts_qmax		T_un.T_uns.tsu_qmax

int tcpstat(struct tcb *, struct tcpstat *);