40 typedef struct asocket asocket;  typedef
71 struct asocket {  struct
75     asocket *next;  argument
76     asocket *prev;  argument
87         /* the asocket we are connected to  argument
90     asocket *peer;  argument
110     int (*enqueue)(asocket *s, apacket *pkt);  argument
115     void (*ready)(asocket *s);  argument
121     void (*close)(asocket *s);  argument
124     void *extra;
127     atransport *transport;