Function mysql_ha_find_handler

sql/sql_handler.cc:561–593

*/  

static SQL_HANDLER *mysql_ha_find_handler(THD *thd, const LEX_CSTRING *name)
{
  SQL_HANDLER *handler;
  if ((my_hash_inited(&thd->handler_tables_hash)) &&
      (handler= (SQL_HANDLER*) my_hash_search(&thd->handler_tables_hash,
                                              (const uchar*) name->str,
                                              name->length + 1)))
  {
    DBUG_PRINT("info-in-hash",("'%s'.'%s' as '%s' table: %p",
                               handler->db.str,
                               handler->table_name.str,
                               handler->handler_name.str, handler->table));
    if (!handler->table)
    {
      /* The handler table has been closed. Re-open it. */
      TABLE_LIST tmp;
      tmp.init_one_table(&handler->db, &handler->table_name,
                         &handler->handler_name, TL_READ);

      if (mysql_ha_open(thd, &tmp, handler))
      {
        DBUG_PRINT("exit",("reopen failed"));
        return 0;
      }
    }
  }
  else
  {
    my_error(ER_UNKNOWN_TABLE, MYF(0), name->str, "HANDLER");
    return 0;
  }
  return handler;
}


/**