} t_ivac;
/* function prototypes */
+int usage(void);
int ivac_shutdown(t_ivac *ivac);
int ivac_send_info(int channel,t_ivac *ivac);
+int ivac_send_quit(int channel,t_ivac *ivac);
int ivac_receive_info(int channel,t_ivac *ivac);
int ivac_event_cb(t_event *event,void *ptr);
int ivac_regular_cb(t_event *event,void *ptr);