C++ (Cpp) SendPingPacket Examples

Example #1

File: TraverseBySourceExchange.cpp Project: litaobj/easymule

void CTraverseBySourceExchange::SendPacket()
{
	m_bFailed = m_dwState & NAT_E_NOPEER;

	try
	{
		if(!m_bFailed && (m_dwState&NAT_S_SYNC)==0 && time(NULL)-m_SendReqTime > 5) //  5 seconds
		{
			//  failed to connect
			if(m_nSendReqCount > 12)
			{
				m_dwState|=NAT_E_TIMEOUT;
				if(m_nSendReqCount>23)
					Failed();
				m_nSendReqCount++;
			}
			else
			{
				if(m_nSendReqCount==0)
					_AddLogLine(false, _T("Begin to connect %s."), UserHashToString(m_UserHash));
				SendConnectReq();
			}
		}

		if(m_bFailed)
		{
			if(m_Sock)// && pClientSock->client)
			{
				//m_Sock->m_bUseNat = false;
			}

			if(m_dwState & NAT_E_NOPEER)
			{
				_AddLogLine(false, _T("Unconnected NatSock was deleted. server return E_NOPEER. %s."), UserHashToString(m_UserHash));
			}
			else
			{
				_AddLogLine(false, _T("Unconnected NatSock was deleted. time out. %s."), UserHashToString(m_UserHash));
			}
		}

		if(m_dwState & NAT_S_SYNC && time(NULL)-m_SendPingTime >4)
		{
			if(m_nPassivePing> 15)
			{
				_AddLogLine(false, _T("Passive Unconnected NatSock was deleted. timeout. %s."), UserHashToString(m_UserHash));
				Failed();
			}
			else 
			{
				SendPingPacket();
			}
		}
	}
	catch(...)
	{
		//  the CAsyncSocketEx maybe is deleted
		Failed();
	}
}

Example #2

File: TraverseByBuddy.cpp Project: techpub/archive-code

void CTraverseByBuddy::SendPacket()
{
	try
	{
		if(!m_bFailed && (m_dwState&NAT_S_SYNC)==0 && time(NULL)-m_SendReqTime > 10)
		{
			//  failed to connect
			if(m_nSendReqCount>60)
			{
				m_dwState|=NAT_E_TIMEOUT;
				if(m_nSendReqCount>70)
					Failed();
				m_nSendReqCount++;
			}
			else
			{
				SendConnectReq();
				SendPingPacket();
			}
		}

		if(m_bFailed)
		{
			if(m_Sock)// && pClientSock->client)
			{
				//m_Sock->m_bUseNat = false;
			}
			_AddLogLine(false, _T("Unconnected NatSock was deleted. time out. %s."), UserHashToString(m_UserHash));
		}
	}
	catch(...)
	{
		//  the CAsyncSocketEx maybe is deleted
		TRACE("Exception: %s\n", __FUNCTION__);
		Failed();
	}
}

Example #3

File: TraverseBySourceExchange.cpp Project: techpub/archive-code

void CTraverseBySourceExchange::OnRecvSync(const uchar * data, int /*len*/, DWORD /*ip*/, WORD /*port*/)
{
	TRACE("Receive NAT Sync Request From Source Exchange!\n");

	//UINT realsize=len-1;// VC-linhai[2007-08-06]:warning C4189: “realsize” : 局部变量已初始化但不引用
	const uchar * realdata=data+1;

	DWORD cip = *(DWORD*)(realdata);
	WORD cport = *(WORD*)(realdata+4);

	if(cip==0 || cport==0)
	{
		return;
	}
	const uchar * id=realdata+6;

	DWORD ConnAck = 0;
	memcpy(&ConnAck, id+16, 4);

	TRACE("recv sync, ConnAck=%08x\n", ConnAck);
#ifdef _DEBUG
	in_addr addr;
	addr.s_addr = cip;
	TRACE("peer addr of %02X%02X%02X%02X = %s:%d\n", id[0], id[1], id[2],id[3],
		inet_ntoa(addr), ntohs(cport));
#endif
	uchar myid[16];
	GetMyUserHash(myid);
	if(memcmp(id, myid, 16)==0)
	{
		_AddLogLine(false, _T("ERROR: recv myself for traversal"));
		return;
	}

	CAsyncSocketEx * pASock=NULL;
	CUpDownClient * pClient= CGlobalVariable::clientlist->FindClientByUserHash(id);
	if(pClient)
	{
		pASock = pClient->socket;

		if(! pASock)
		{
			CRuntimeClass * pClassSocket = RUNTIME_CLASS(CClientReqSocket);
			CClientReqSocket * socket = static_cast<CClientReqSocket*>(pClassSocket->CreateObject());
			socket->SetClient(pClient);
			if (!socket->Create())
			{
				socket->Safe_Delete();
				return;
			}

			pClient->socket = socket;
			pASock = socket;
		}
		ASSERT(pASock);
		if(! pASock) 
		{
			return;
		}
	}
	else
	{
		TRACE("\n->%s: Accept a incoming sock for %02X%02X%02X%02X\n", __FUNCTION__,
			id[0],id[1],id[2],id[3]);

		pASock = CGlobalVariable::natthread->GetTempASock(id);
	}

	m_dwClientIp = cip;
	m_wClientPort = cport;

	m_dwState |=NAT_S_SYNC;
	SendPingPacket();
}