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2nd day of tracing INET6: Application/PingAPP

· One min read

Define_Module (PingApp); 模組名稱是 PingApp

PingApp::initialize()

  1. 讀入 omnetpp.ini 中設定的參數.
  2. 在 TKenv 中監視
  • sendSeqNo
  • expectedReplySeqNo
  • dropCount
  • outOfOrderArrivalCount 這幾個結果 PingApp::handleMessage (cMessage *msg)

if (msg->isSelfMessage ()) 若訊息來自本身節點

destAddr = IPAddressResolver ().resolve (par ("destAddr")); 解析目的位址設定

來自其他節點則啟動回覆機制

processPingResponse(check_and_cast<pingpayload>(msg));

void PingApp::sendPing()

PingPayload msg = new PingPayload (name); 新增封包，接著下面照著宣告的格式填入對應的值 msg->setLength (8packetSize); //? 封包裡沒宣告

sendToICMP (msg, destAddr, srcAddr, hopLimit); 把訊息送到 ICMP 裡

PingApp::scheduleNextPing(cMessage *timer)

simtime_t nextPing = simTime () + intervalp->doubleValue (); 模擬時間加上間隔時間

void PingApp::sendToICMP(cMessage *msg, const IPvXAddress& destAddr, const IPvXAddress& srcAddr, int hopLimit) 判斷送出 v4/v6 icmp 格式封包

void PingApp::processPingResponse (PingPayload *msg) 收到 ICMP 封包，判斷</pingpayload> v4/v6 並<pingpayload>處理 </pingpayload>