public void Merge_data(Xow_wiki wiki, Io_url src_url, int idx_cur) {
    long all_time_bgn = gplx.core.envs.System_.Ticks();
    wiki.Init_by_wiki();
    Db_conn src_conn = Db_conn_bldr.Instance.Get_or_autocreate(false, src_url);
    ctx.Init(wiki, src_conn);

    // merge data
    int hash_len = wkr_hash.Len();
    for (int i = 0; i < hash_len; ++i) {
      if (prog_wkr.Canceled()) break;
      Merge2_wkr wkr = (Merge2_wkr) wkr_hash.Get_at(i);
      // if (prog_wkr.Checkpoint__skip_wkr(src_url, wkr.Tbl_name())) continue;
      long wkr_time_bgn = gplx.core.envs.System_.Ticks();
      wkr.Merge_data(ctx, prog_wkr);
      Gfo_log_.Instance.Info(
          "merge.wkr.done",
          "data",
          src_url.NameAndExt()
              + "|"
              + wkr.Tbl().Tbl_name()
              + "|"
              + gplx.core.envs.System_.Ticks__elapsed_in_frac(wkr_time_bgn));
    }
    if (ctx.Heap__copy_to_wiki()) ctx.Heap__increment_nxt();
    Gfo_log_.Instance.Info(
        "merge.wkr.done",
        "data",
        src_url.NameAndExt()
            + "|-1|"
            + gplx.core.envs.System_.Ticks__elapsed_in_frac(all_time_bgn));
    src_conn.Rls_conn(); // NOTE: must close conn else pack_conn will stay open
  }
 public void Special__gen(Xoa_app app, Xow_wiki wiki, Xoa_page page, Xoa_url url, Xoa_ttl ttl) {
   int slash_pos =
       Bry_find_.Find_fwd(ttl.Page_txt_wo_qargs(), Xoa_ttl.Subpage_spr); // check for slash
   byte[] special_name =
       slash_pos == Bry_find_.Not_found
           ? ttl
               .Base_txt_wo_qarg() // no slash found; use base_txt; ignore qry args and just get
                                   // page_names; EX: Search/Earth?fulltext=y;
                                   // Allpages?from=Earth...
           : Bry_.Mid(
               ttl.Page_txt_wo_qargs(),
               0,
               slash_pos); // slash found; use root page; EX: Special:ItemByTitle/enwiki/Earth
   special_name =
       Xoa_ttl.Replace_spaces(special_name); // handle spaces; EX:Spezial:Zufällige_Seite
   Xow_special_page special = (Xow_special_page) hash.Get_by_bry(special_name);
   if (special != null) { // special found; generate it;
     special = special.Special__clone();
     page.Db().Page().Modified_on_(Datetime_now.Get());
     try {
       special.Special__gen(wiki, page, url, ttl);
     } catch (Exception e) {
       Gfo_log_.Instance.Warn(
           "failed to generate special page",
           "url",
           url.To_str(),
           "err",
           Err_.Message_gplx_log(e));
     }
   }
 }