www.pudn.com > WSN-SEASON.rar > ptopdelay.awk

s 10.1 _1_ AGT  --- 22 tcp 43 [0 2 1 800] ------- [1:0 2:0 30 2] [13 0] 0 0 
BEGIN { 
     highest_packet_id = 0; 
} 
{ 
   action = $1; 
   time = $2; 
   node = $3; 
   objtype = $4; 
   reson = $5 
   uid = $6; 
   pkttype=$7; 
 
  
#記錄目前最高的packet ID 
   if ( packet_id > highest_packet_id ) 
                highest_packet_id = packet_id; 
  
#記錄封包的傳送時間 
   if ( start_time[packet_id] == 0 )   
               start_time[packet_id] = time; 
  
#記錄CBR (flow_id=2) 的接收時間 
   if ( flow_id == 2 && action != "d" ) { 
      if ( action == "r" ) { 
         end_time[packet_id] = time; 
      } 
   } else { 
#把不是flow_id=2的封包或者是flow_id=2但此封包被drop的時間設為-1 
      end_time[packet_id] = -1; 
   } 
}                                                                                                            
END { 
#當資料列全部讀取完後，開始計算有效封包的端點到端點延遲時間  
    for ( packet_id = 0; packet_id <= highest_packet_id; packet_id++ ) { 
       start = start_time[packet_id]; 
       end = end_time[packet_id]; 
       packet_duration = end - start; 
  
#只把接收時間大於傳送時間的記錄列出來 
       if ( start < end ) printf("%f %f\n", start, packet_duration); 
   } 
}