tcp.c文件的sock结构Linux认证考试

文章作者 100test 发表时间 2009:10:03 16:35:10
来源 100Test.Com百考试题网

　　/*

　　* This structure really needs to be cleaned up.

　　* Most of it is for TCP, and not used by any of

　　* the other protocols.

　　*/

　　struct sock {

　　struct options *opt.

　　volatile unsigned long wmem_alloc.

　　volatile unsigned long rmem_alloc.

　　unsigned long write_seq.

　　unsigned long sent_seq.

　　unsigned long acked_seq.

　　unsigned long copied_seq.

　　unsigned long rcv_ack_seq.

　　unsigned long window_seq.

　　unsigned long fin_seq.

　　unsigned long urg_seq.

　　unsigned long urg_data.

　　/*

　　* Not all are volatile, but some are, so we

　　* might as well say they all are.

　　*/

　　volatile char 　　inuse,

　　dead,

　　urginline,

　　intr,

　　blog,

　　done,

　　reuse,

　　keepopen,

　　linger,

　　delay_acks,

　　destroy,

　　ack_timed,

　　no_check,

　　zapped, /* In ax25 &. ipx means not linked */

　　broadcast,

　　nonagle.

　　unsigned long lingertime.

　　int proc.

　　struct sock *next.

　　struct sock 　　*prev. /* Doubly linked chain.. */

　　struct sock *pair.

　　struct sk_buff * volatile send_head.

　　struct sk_buff * volatile send_tail.

　　struct sk_buff_head back_log.

　　struct sk_buff *partial.

　　struct timer_list partial_timer.

　　long retransmits.