203         let pkt_num = pkt.pkt_num;  in on_packet_sent()  localVariable
208             cmp::max(self.largest_sent_pkt[epoch], pkt_num);  in on_packet_sent()
232             self.hystart.start_round(pkt_num);  in on_packet_sent()
283                 .skip_while(|p| p.pkt_num < lowest_acked)  in on_ack_received()
285                 .take_while(|p| p.pkt_num <= largest_acked)  in on_ack_received()
296                 largest_newly_acked_pkt_num = unacked.pkt_num;  in on_ack_received()
309                     pkt_num: unacked.pkt_num,  in on_ack_received()
316                 trace!("{} packet newly acked {}", trace_id, unacked.pkt_num);  in on_ack_received()
617             .take_while(|p| p.pkt_num <= largest_acked)  in detect_lost_packets()
624                 largest_acked >= unacked.pkt_num + PACKET_THRESHOLD  in detect_lost_packets()
643                         unacked.pkt_num,  in detect_lost_packets()
724         if self.in_persistent_congestion(largest_lost_pkt.pkt_num) {  in on_packets_lost()
885     pub pkt_num: u64,  field
914         write!(f, "pkt_num={:?} ", self.pkt_num)?;  in fmt()
933     pub pkt_num: u64,  field
1013             pkt_num: 0,  in loss_on_pto()
1039             pkt_num: 1,  in loss_on_pto()
1065             pkt_num: 2,  in loss_on_pto()
1091             pkt_num: 3,  in loss_on_pto()
1149             pkt_num: 4,  in loss_on_pto()
1175             pkt_num: 5,  in loss_on_pto()
1239             pkt_num: 0,  in loss_on_timer()
1265             pkt_num: 1,  in loss_on_timer()
1291             pkt_num: 2,  in loss_on_timer()
1317             pkt_num: 3,  in loss_on_timer()
1392             pkt_num: 0,  in loss_on_reordering()
1418             pkt_num: 1,  in loss_on_reordering()
1444             pkt_num: 2,  in loss_on_reordering()
1470             pkt_num: 3,  in loss_on_reordering()