Esempio n. 1
0
bool C4Network2Client::DoTCPSimultaneousOpen(class C4Network2IO *pIO, const C4Network2Address &addr)
{
	if (!pIO->getNetIO(P_TCP)) return false;

	// Did we already bind a socket?
	if (TcpSimOpenSocket)
	{
		LogSilentF("Network: connecting client %s on %s with TCP simultaneous open...", getName(), addr.getAddr().ToString().getData());
		return pIO->ConnectWithSocket(addr.getAddr(), addr.getProtocol(), pClient->getCore(), std::move(TcpSimOpenSocket));
	}
	else
	{
		// No - bind one, inform peer, and schedule a connection attempt.
		auto NetIOTCP = dynamic_cast<C4NetIOTCP*>(pIO->getNetIO(P_TCP));
		auto bindAddr = pParent->GetLocal()->IPv6AddrFromPuncher;
		// We need to know an address that works.
		if (bindAddr.IsNull()) return false;
		bindAddr.SetPort(0);
		TcpSimOpenSocket = NetIOTCP->Bind(bindAddr);
		auto boundAddr = TcpSimOpenSocket->GetAddress();
		LogSilentF("Network: %s TCP simultaneous open request for client %s from %s...", addr.isIPNull() ? "initiating" : "responding to",
				getName(), boundAddr.ToString().getData());
		// Send address we bound to to the client.
		if (!SendMsg(MkC4NetIOPacket(PID_TCPSimOpen, C4PacketTCPSimOpen(pParent->GetLocal()->getID(), C4Network2Address(boundAddr, P_TCP)))))
			return false;
		if (!addr.isIPNull())
		{
			// We need to delay the connection attempt a bit. Unfortunately,
			// waiting for the next tick would usually take way too much time.
			// Instead, we block the main thread for a very short time and hope
			// that noone notices...
			int ping = getMsgConn()->getLag();
			std::this_thread::sleep_for(std::chrono::milliseconds(std::min(ping / 2, 10)));
			DoTCPSimultaneousOpen(pIO, addr);
		}
		return true;
	}
}
Esempio n. 2
0
bool C4Network2Address::operator == (const C4Network2Address &addr2) const
{
	return eProtocol == addr2.getProtocol() && AddrEqual(addr, addr2.getAddr());
}