/* communication class dispatcher - WA */ typedef struct _class_def { int base,max_sess; int (*close)(); int (*read)(); int (*write)(int,char); void (*echo)(); } CLASS_DEF; extern int c_errno; /* virtual consoles */ void vc_listen(); int vc_accept(); int vc_select(); void vc_init(); void vc_shutdown(); /* serial lines */ void ser_listen(); int ser_accept(); int ser_select(); void ser_init(); void ser_shutdown(); void timer_expire();