event_set_timeout(&(info.event),HOP_SEC,HOP_USEC);
event_math(0,&(info.event),READ,ADD);
event_math(pcap_fd,&(info.event),READ,ADD);
event_set_timeout(&(info.event),HOP_SEC,HOP_USEC);
event_math(0,&(info.event),READ,ADD);
event_math(pcap_fd,&(info.event),READ,ADD);