dicates message was truncated because read buffer was too small. The remainder was discarded by the OS. Used in ``RecvCb``.
  udpReuseAddr = 4 ## Indicates if SO_REUSEADDR will be set when binding the handle in ``bind()``. This sets the SO_REUSEPORT socket 
                ## flag on the BSDs and OS X. On other Unix platforms, it sets the SO_REUSEADDR flag. What that means is that multiple 
                ## threads or processes can bind to the same address without error (provided they all set the flag) bu