~drizzle-trunk/drizzle/development

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

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

 *

 *  Copyright (C) 2008 Sun Microsystems, Inc.

 *

 *  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; version 2 of the License.

 *

 *  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

 */

#pragma once

#include <vector>

#include <drizzled/thr_lock.h>

#include <drizzled/locking/global.h>

namespace drizzled {

class DrizzleLock

{

public:

  Table **getTable()

  {

    return &table[0];

  }

  THR_LOCK_DATA **getLocks()

  {

    return &locks[0];

  }

  size_t sizeTable() const

  {

    return table.size();

  }

  void resizeTable(size_t arg)

  {

    table.resize(arg);

  }

  size_t sizeLock() const

  {

    return lock_count;

  }

  void resetLock()

  {

    lock_count= 0;

  }

  void setLock(size_t arg)

  {

    lock_count= arg;

  }

  void reset(void);

  void unlock(uint32_t count);

  DrizzleLock(size_t table_count_arg)

  {

    table.resize(table_count_arg);

    lock_count= table_count_arg * 2;

    locks.resize(lock_count);

  }

private:

  uint32_t lock_count;

  std::vector<Table *> table;

  std::vector<THR_LOCK_DATA *> locks;

  std::vector<THR_LOCK_DATA *> copy_of;

};

/* lockTables() and open_table() flags bits */

#define DRIZZLE_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001

#define DRIZZLE_LOCK_IGNORE_FLUSH                 0x0002

#define DRIZZLE_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004

#define DRIZZLE_OPEN_TEMPORARY_ONLY               0x0008

} /* namespace drizzled */