~drizzle-trunk/drizzle/development

/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2010 Brian Aker

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <config.h>

#include <plugin/show_dictionary/dictionary.h>

#include <drizzled/open_tables_state.h>

using namespace std;

using namespace drizzled;

ShowTemporaryTables::ShowTemporaryTables() :

  show_dictionary::Show("SHOW_TEMPORARY_TABLES")

{

  add_field("TABLE_SCHEMA", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);

  add_field("TABLE_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);

  add_field("RECORDS", plugin::TableFunction::NUMBER, 0, false);

  add_field("RECORD_LENGTH", plugin::TableFunction::NUMBER, 0, false);

  add_field("ENGINE");

}

ShowTemporaryTables::Generator::Generator(Field **arg) :

  show_dictionary::Show::Generator(arg),

  session(getSession())

{

  table= session.open_tables.getTemporaryTables();

}

bool ShowTemporaryTables::Generator::populate()

{

  while (table)

  {

    if (not isWild(table->getShare()->getTableName()))

    {

      break;

    }

    table= table->getNext();

  }

  if (not table)

    return false;

  fill();

  table= table->getNext();

  return true;

}

void ShowTemporaryTables::Generator::fill()

{

  /* TABLE_SCHEMA */

  push(table->getShare()->getSchemaName());

  /* TABLE_NAME */

  push(table->getShare()->getTableName());

  /* RECORDS */

  push(static_cast<uint64_t>(table->getCursor().records()));

  /* RECORD_LENGTH */

  push(static_cast<uint64_t>(table->getRecordLength()));

  /* ENGINE */

  push(table->getEngine()->getName());

}