C# socket app stop working when receiving page break

Sure.
I will get my guys to give the the code extract and I'll post soonest.

I agree with SunnyDark, it seems to be a problem with the service.  It most likely was not made to expect empty rows and it chokes when encountering one.

Post the code and we'll see what we can do.

     -dZ.

Here is my guys code:

                TcpClient client = new TcpClient(ServerIP, ServerPort);

                if (client.Connected)

                {

                    //Get the SMDR

                    NetworkStream network = client.GetStream();

                    StreamReader SMDRReader = new StreamReader(network);

                    string SMDR = "";//SMDRReader.ReadLine();

                    //SMDR = SMDRReader.ReadLine();

                    //ProcessSMDR(SMDR);





                    while ((SMDR = SMDRReader.ReadLine()) != null)

                    {



                        //Check if there is data to save

                        if (SMDR.Trim() != String.Empty)

                            ProcessSMDR(SMDR);



                        SMDR = "";

                       

                       



                    }

                }

I'll forward you commented to my guys and revert.
Thanks.

Try changing:
while ((SMDR = SMDRReader.ReadLine()) != null)

                    {



                        //Check if there is data to save

                        if (SMDR.Trim() != String.Empty)

                            ProcessSMDR(SMDR);



                        SMDR = "";

                       

                       



                    }
To:

                    while (network.DataAvailable )
                    {
                        SMDR = SMDRReader.ReadLine();
                        if (SMDR == null) continue;
                        //Check if there is data to save
                        if (SMDR.Trim() != String.Empty)
                            ProcessSMDR(SMDR);
                    }
                                              

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Thanks.
We'll try it ASAP.

Good luck.

Hi Guys,

Seems that our problem has elevated itself into another dimension or something similar.
Okay, let me try explain ... we have managed to establish that we do NOT have a connection or connection-state problem from the service to the PBX IP+port, as we added extra code that we can see that when CDR is given off by the PBX by being recognized by the service and a entry created in the sql table.
What we still have issue with, is when the service/app is started the very first string of CDR is captured correctly, but all the CDR strings after that is being recognized (row created in the table), but the data/message field is just empty.
We also noticed that we get an error returned when trying to INSERT data into the MESSAGE field saying that our strings longer than 4000 characters (which is the limit for this field).
Another suspect issue is that the 'empty strings' are actually not empty, but when doing a character count on the empty strings, that can vary between 80 to 100s of characters in length which is just empty spaces ... it seems.
My take on this at the moment is that we are getting an END OF LINE identifier or CARRIAGE RETURN, but out code cannot interpret the character or command issued.

Your help & comments please?

Thank you.

Hannes,

My suggestion is that you implement your own parser for the feed...
That is just read the data as character stream  directly from NetworkStream into a buffer. Then parse it yourself in code .

One more thing I'd like to add is that you should make sure that the format of the files, as you are storing them, is correct; that no transport level translations are occuring to newline delimiters and such.

As for parsing the lines, I concur with SunnyDark.  The StreamReader.ReadLine() method expects either a line-feed (\n) or a carriage-return + line-feed (\r\n) delimiter, and your files have various sequences that may be affecting the reader.

     -dZ.

Hi Guys,

I want to do a simple test to see if I have the same issue, for when my service is receiving the data instead of requesting the data.
I am searching the web for a utility to test with that will allow me to connect to an IP+port and forward onto an IP+port (my service).  I managed to find a lot of port forwarders, but only listeners, not the one I need.
I'd appreciate if you ca recommend something.

Thank you.

Hannes.

Are you looking for a network sniffer to look at the TCP transaction while it's happening?  If so, then I recommend WireShark.  It can analyse TCP communications by protocol and let you view what is going on.

        http://www.wireshark.org/

        dZ.

Hi dZ,
NO, I am not trying to sniff the data, but I need to be able to connect to an IP+port (similar to a telnet connection) AND also be able to forward the data that is received/collect to another IP+port.
I managed to find a lot of utils to listen on a local port and forward to an IP+port, but I need to connect to an IP+port first to get my data and not just listen on a port.

I hope this explains this?!?!?!

Thanks.

Hannes.

If I understand correctly, what you want to do is open a connection to a remote IP, retrieve data, then open another connection to a separate host and transmit the data from one to the other.  Off hand, I do not know of any tool that does this.  You could build your own, I suppose.

What are you trying to accomplish with this, and how does it relate to your problem?

    -dZ.

There is no difference if you are retrieving the data or receiving it, since you have no control on what happens on the other end (I suppose). So If you are trying to solve your problem with the format of the string I strongly suggest that you implement your own parser for the data...

TcpClient client = new TcpClient(ServerIP, ServerPort);
if (client.Connected)
{
    NetworkStream network = client.GetStream();
    if (network.CanRead)
    {
        byte[] myReadBuffer = new byte[1024];
        StringBuilder SMDR = new StringBuilder();
        int numberOfBytesRead = 0;
        // Incoming message may be larger than the buffer size.
        do
        {
            numberOfBytesRead = network.Read(myReadBuffer, 0, myReadBuffer.Length);
            int index = 0;
            int count;
            for (int i = 0; i < numberOfBytesRead; i++)
            {
                // implement your own matching patterns...
                if (myReadBuffer[i] == '\r')
                {
                    SMDR.AppendFormat("{0}", Encoding.ASCII.GetString(myReadBuffer, index, i - index));
                    ProcessSMDR(SMDR);
                    SMDR = new StringBuilder();
                }
                if (myReadBuffer[i] == '\n') index++;
            }
            if (index < numberOfBytesRead - 1)
            {
                SMDR.AppendFormat("{0}", Encoding.ASCII.GetString(myReadBuffer, index, numberOfBytesRead - index));
            }
        }
        while (network.DataAvailable);
    }
}

                                              

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