private void closeAttachedEvent(long ov){
  long hEvent=UNSAFE.getAddress(ov + OFFSETOF_HEVENT);
  if (hEvent != 0 && hEvent != INVALID_HANDLE_VALUE)   CloseHandle(hEvent);
}

private void closeAttachedEvent ( long ov ) { long hEvent = UNSAFE . getAddress ( ov + OFFSETOF_HEVENT ) ; if ( hEvent != 0 && hEvent != INVALID_HANDLE_VALUE ) CloseHandle ( hEvent ) ; }
closes the event attached to the given overlapped structure . a no - op if there isn ' t an event attached .
