Telnet connection, want to know when bytes are waiting.

[OmronNL]

In my program I have a telnet connection with a server. At a certain point in my program I want to check whether there are bytes waiting to be read. Something like

bool BytesWaiting(void)

{

  if (ByteAmount >0)

     return true

  else

      return false

}

I've searched the telnet library but I only see functions for send/receive, receiveuntil and open/close.

Does anyone have a solution for this problem?

Thanks in advance.

[Mohan]

The telnet functions in the CVI Internet library are high-level functions and do not expose the underlying sockets or this kind of low-level functionality. You can try calling the read function with a very small timeout to check if there are bytes to be read - the down-side is that this will cause the bytes to be read if there is data, which may or may not be OK in your case.