Measuring RTT with visual studio

Question

I am trying to measure RTT with visual studio. Now, when I call the function:

GetTcpRow(554, clientPort, MIB_TCP_STATE_ESTAB,(PMIB_TCPROW) serverConnectRow);
if (winStatus != ERROR_SUCCESS) {
    wprintf
        (L"\nGetTcpRow failed on the server established connection with %d",
         winStatus);
    goto bail;

it returns the value 1168 to the variable winStatus and then prints the message nGetTcpRow failed on the server established connection with 1168 and stops running.

Does anyone know what the problem is? What does the function GetTcpRow do?

Thanks.

Answer 1

Google found the code for GetTcpRow() here

http://msdn.microsoft.com/en-us/library/windows/desktop/bb485735(v=vs.85).aspx

There are multiple error legs in the code. You need to lookup the values of the various return codes to see which error leg is happening.