/*
 *  call-seq:
 *     iw.commit -> iw
 *
 *  Explicitly commit any changes to the index that may be hanging around in
 *  memory. You should call this method if you want to read the latest index
 *  with an IndexWriter.
 */
static VALUE
frt_iw_commit(VALUE self)
{
    IndexWriter *iw = (IndexWriter *)DATA_PTR(self);
    iw_commit(iw);
    return self;
}