nfcompleterep.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 NF_COMPLETE_REP_HPP
#define NF_COMPLETE_REP_HPP

#include "SignalData.hpp"

/**
 * NFCompleteRep - Node Fail Complete Report
 *
 * This signal is sent by a block(or a node)
 * when it has finished cleaning up after a node failure.
 *
 * It's also sent from Qmgr to the clusterMgr in API
 * to tell the API that it can now abort all transactions still waiting for response
 * from the failed NDB node
 *
 */
struct NFCompleteRep {

  friend bool printNF_COMPLETE_REP(FILE *, const Uint32 *, Uint32, Uint16);
  
  STATIC_CONST( SignalLength = 5 );

  /**
   * Which block has completed...
   *
   * NOTE: 0 means the node has completed
   */
  Uint32 blockNo;
  
  /**
   * Which node has completed...
   */
  Uint32 nodeId;
  
  /**
   * Which node has failed
   */
  Uint32 failedNodeId;

  /**
   * Is this the original message or a delayed variant.
   */
  Uint32 unused; // originalMessage

  Uint32 from;
};

#endif