Re: [lwip-users] Re connect HTTP

[H.A.]

I do have this code before the reconnect. It is probably relevant
            //
            // Avoid repeated connect
            //
            if(pState->eTCPState == STATE_TCP_CONNECTING)
                return;

Am I in the wrong context for the stellaris port?



H.A. wrote:
> 
> I still can't get this to work. I open a "telnet like" raw connection to a
> server on port 80 and send a string. It works but after 10 seconds the
> server shuts down the connection. The telnetReceive detects this and tears
> down the connection completely, reopens the connection. Each time 7 empty
> packets are sent every 10 seconds. It works but with many devices this can
> generate a lot of traffic.
> 
> What I'm trying to do is to remove the open in the telnetReceive and
> reconnect only when i need inside the telnethandler which is called from
> the lwIPHostTimerHandler. According to Dave Wilson that should be the
> right context when working with the Stellaris port. In fact this is the
> only function called from this timer sice I have removed UPNP.  My idea is
> the the TelnetHandler should sort of poll the status of the connection and
> send the data when connected.
> 
> Tried many different ways but nothing works. Am I doing something
> completely wrong?
> This code is placed at the end of the TelnetHandler. Can't even see a SYN
> in Wireshark.
> This is not the serial interrupt handler as I incorrectly stated before.
> It reads the serial
> ringbuffer. 
> 
> //
> // Reconnect port 1 if required.
> //
>     if(pState->eTCPState != STATE_TCP_CONNECTED)
>     {
>         TelnetOpen(pState->ulTelnetRemoteIP, pState->usTelnetRemotePort,
>                           pState->usTelnetLocalPort, 1);
>             // TelnetOpen(g_sParameters.sPort[1].ulTelnetIPAddr,
>             // g_sParameters.sPort[1].usTelnetRemotePort,
>             // g_sParameters.sPort[1].usTelnetLocalPort,1);
>         return;
>     }
> 
>     // Put string into the TCP buffer.
>     tcp_write(pState->pConnectPCB, pucTemp, strlen((char *)pucTemp), 1);
> 
>     // Flush the data that has been written into the TCP output buffer
>     tcp_output(pState->pConnectPCB);
>     pState->ulLastTCPSendTime = g_ulSystemTimeMS;
>     bRxMsgFlag = false;              // Clear some stuff for next time
>     ucRxIndex = 0;
> 
> 

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