trigattrinfo.hpp

mysql-5.0.22.tar.gz源码包

/* Copyright (C) 2003 MySQL AB

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef TRIG_ATTRINFO_HPP
#define TRIG_ATTRINFO_HPP

#include "SignalData.hpp"
#include <NodeBitmask.hpp>
#include <trigger_definitions.h>
#include <string.h>

/**
 * TrigAttrInfo
 *
 * This signal is sent by TUP to signal
 * that a trigger has fired
 */
class TrigAttrInfo {
  /**
   * Sender(s)
   */
  // API
  
  /**
   * Sender(s) / Reciver(s)
   */
  friend class Dbtup;
  
  /**
   * Reciver(s)
   */
  friend class Dbtc;
  friend class Backup;
  friend class SumaParticipant;

  /**
   * For printing
   */
  friend bool printTRIG_ATTRINFO(FILE * output, const Uint32 * theData, Uint32 len, Uint16 receiverBlockNo);

public:
enum AttrInfoType { 
  PRIMARY_KEY = 0, 
  BEFORE_VALUES = 1, 
  AFTER_VALUES = 2 
};

  STATIC_CONST( DataLength = 22 );
  STATIC_CONST( StaticLength = 3 );

private:
  Uint32 m_connectionPtr; 
  Uint32 m_trigId;
  Uint32 m_type;
  Uint32 m_data[DataLength];

  // Public methods
public:
  Uint32 getConnectionPtr() const;
  void setConnectionPtr(Uint32);  
  AttrInfoType getAttrInfoType() const;
  void setAttrInfoType(AttrInfoType anAttrType);
  Uint32 getTriggerId() const;
  void setTriggerId(Uint32 aTriggerId);
  Uint32 getTransactionId1() const;
  void setTransactionId1(Uint32 aTransId);
  Uint32 getTransactionId2() const;
  void setTransactionId2(Uint32 aTransId);
  Uint32* getData() const;
  int setData(Uint32* aDataBuf, Uint32 aDataLen);
};

inline
Uint32 TrigAttrInfo::getConnectionPtr() const
{
  return m_connectionPtr;
}

inline 
void TrigAttrInfo::setConnectionPtr(Uint32 aConnectionPtr)
{
  m_connectionPtr = aConnectionPtr;
}

inline
TrigAttrInfo::AttrInfoType TrigAttrInfo::getAttrInfoType() const
{
  return  (TrigAttrInfo::AttrInfoType) m_type;
}

inline
void TrigAttrInfo::setAttrInfoType(TrigAttrInfo::AttrInfoType anAttrType)
{
  m_type = (Uint32) anAttrType;
}

inline
Uint32 TrigAttrInfo::getTriggerId() const
{
  return m_trigId;
}

inline
void TrigAttrInfo::setTriggerId(Uint32 aTriggerId)
{
  m_trigId = aTriggerId;
}

inline
Uint32* TrigAttrInfo::getData() const
{
  return (Uint32*)&m_data[0];
}

inline
int TrigAttrInfo::setData(Uint32* aDataBuf, Uint32 aDataLen)
{
  if (aDataLen > DataLength)
    return -1;
  memcpy(m_data, aDataBuf, aDataLen*sizeof(Uint32));

  return 0;
}

#endif