public long contentLengthSent(){
  OutHttpApp stream=_responseStream;
  if (stream != null) {
    return stream.contentLength();
  }
 else {
    return Math.max(_contentLengthOut,0);
  }
}

public long contentLengthSent ( ) { OutHttpApp stream = _responseStream ; if ( stream != null ) { return stream . contentLength ( ) ; } else { return Math . max ( _contentLengthOut , 0 ) ; } }
returns the number of bytes sent to the output .
