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/* Copyright (c) 2003, 2005, 2006 MySQL AB
   Use is subject to license terms   
   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 Street, Fifth Floor, Boston, MA  02110-1301, USA */

#ifndef ALTER_TAB_HPP
#define ALTER_TAB_HPP

#include "SignalData.hpp"
#include "GlobalSignalNumbers.h"

/**
 * AlterTab
 *
 * Implemenatation of AlterTable
 */
class AlterTabReq {
  /**
   * Sender(s) / Reciver(s)
   */
  friend class Dbdict;
  friend class Dbdih;
  friend class Dbtc;
  friend class Dblqh;
  friend class Suma;

  /**
   * For printing
   */
  friend bool printALTER_TAB_REQ(FILE*, const Uint32*, Uint32, Uint16);
  
public:
  STATIC_CONST( SignalLength = 9 );
  
  enum RequestType {
    AlterTablePrepare = 0, // Prepare alter table
    AlterTableCommit = 1,  // Commit alter table
    AlterTableRevert = 2   // Prepare failed, revert instead
  };
private:
  Uint32 senderRef;
  Uint32 senderData;
  Uint32 clientRef;
  Uint32 clientData;

  Uint32 changeMask;
  Uint32 tableId;
  Uint32 tableVersion;
  Uint32 gci;
  Uint32 requestType;

  SECTION( DICT_TAB_INFO = 0 );
};

struct AlterTabRef {
  /**
   * Sender(s) / Reciver(s)
   */
  friend class Dbdict;
  friend class Dbdih;
  friend class Dbtc;
  friend class Dblqh;
  friend class Dbtup;
  friend class SafeCounter;
  
  /**
   * For printing
   */
  friend bool printALTER_TAB_REF(FILE *, const Uint32 *, Uint32, Uint16);
  
  STATIC_CONST( SignalLength = 7 );
  STATIC_CONST( GSN = GSN_ALTER_TAB_REF );

  enum ErrorCode {
    NF_FakeErrorREF = 255
  };

  Uint32 senderRef;
  Uint32 senderData;
  Uint32 errorCode;
  Uint32 errorLine; 
  Uint32 errorKey;
  Uint32 errorStatus;
  Uint32 requestType;
};

class AlterTabConf {
  /**
   * Sender(s) / Reciver(s)
   */
  friend class Dbdict;
  friend class Dbdih;
  friend class Dbtc;
  friend class Dblqh;
  friend class Dbtup;
  
  /**
   * For printing
   */
  friend bool printALTER_TAB_CONF(FILE *, const Uint32 *, Uint32, Uint16);
  
public:
  STATIC_CONST( SignalLength = 7 );

private:
  Uint32 senderRef;
  Uint32 senderData;
  Uint32 changeMask;
  Uint32 tableId;
  Uint32 tableVersion;
  Uint32 gci;
  Uint32 requestType;
};

#endif