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深入分析驴子系列(1)

作者 佚名技术 来源 程序设计 浏览 发布时间 2012-06-29
amp;iSockAddrLen, AcceptConnectionCond, 0); // 宸頁距喘API俊鞭銭俊
        if (sNew == INVALID_SOCKET)
        {
           DWORD nError = GetLastError(); // 功象卦指議呟械序佩侃尖
           if (nError == WSAEWOULDBLOCK)
          {
              DebugLogError(LOG_STATUSBAR, _T("%hs: Backlogcounter says %u connections waiting, Accept() says WSAEWOULDBLOCK - setting counter to zero! "), __FUNCTION__, m_nPendingConnections);
             m_nPendingConnections = 0;
             break;
            }
           else
          {
            if (nError != WSAECONNREFUSED || _iAcceptConnectionCondRejected == 0){
               DebugLogError(LOG_STATUSBAR, _T("%hs: Backlogcounter says %u connections waiting, Accept() says %s - setting counter to zero!"), __FUNCTION__, m_nPendingConnections, GetErrorMessage(nError, 1));
               nFataErrors++;
            }
             else if (_iAcceptConnectionCondRejected == 1)
               theStats.filteredclients++;
           }
            if (nFataErrors > 10)
          {
              // the question is what todo on a error. We cant just ignore it because then the backlog will fill up
             // and lock everything. We can also just endlos try to repeat it because this will lock up eMule
             // this should basically never happen anyway
             // however if we are in such a position, try to reinitalize the socket.
             DebugLogError (LOG_STATUSBAR, _T("%hs: Accept() Error Loop, recreating socket"), __FUNCTION__);
             Close();
              StartListening();
             m_nPendingConnections = 0;
             break;
           }
           continue;
        }
        newclient = new CClientReqSocket; // 匯倖仟議耗俊忖
        VERIFY( newclient->InitAsyncSocketExInstance() );
        newclient- >m_SocketData.hSocket = sNew;
        newclient- >AttachHandle(sNew);
        AddConnection();
       }
      else
      {
        newclient = new CClientReqSocket;
         if (!Accept(*newclient, (SOCKADDR*) &SockAddr, &iSockAddrLen))
        {
            newclient->Safe_Delete();
           DWORD nError = GetLastError();
           if (nError == WSAEWOULDBLOCK)
          {
             DebugLogError(LOG_STATUSBAR, _T("%hs: Backlogcounter says %u connections waiting, Accept() says WSAEWOULDBLOCK - setting counter to zero!"), __FUNCTION__, m_nPendingConnections);
             m_nPendingConnections = 0;
             break;
           }
         

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