CmRegSignalData.hpp 3.59 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192
/* 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 CM_REG_HPP
#define CM_REG_HPP

#include <NodeBitmask.hpp>

/**
 * This is the first distributed signal 
 *   (the node tries to register in the cluster)
 */
class CmRegReq {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );
private:
  
  Uint32 blockRef;
  Uint32 nodeId;
  Uint32 version; // See ndb_version.h
};

/**
 * The node receving this signal has been accepted into the cluster
 */
class CmRegConf {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 4 + NdbNodeBitmask::Size );
private:
  
  Uint32 presidentBlockRef;
  Uint32 presidentNodeId;
  Uint32 presidentVersion;

  /**
   * The dynamic id that the node reciving this signal has
   */
  Uint32 dynamicId;
  
  Uint32 allNdbNodes[NdbNodeBitmask::Size];
};

/**
 * 
 */
class CmRegRef {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 4 );
  
  enum ErrorCode {
    ZBUSY = 0,          /* Only the president can send this */
    ZBUSY_PRESIDENT = 1,/* Only the president can send this */
    ZBUSY_TO_PRES = 2,  /* Only the president can send this */
    ZNOT_IN_CFG = 3,    /* Only the president can send this */
    ZELECTION = 4,      /* Receiver is definitely not president,
                         * but we are not sure if sender ends up
                         * as president. */
    ZNOT_PRESIDENT = 5, /* We are not president */
    ZNOT_DEAD = 6,       /* We are not dead when we are starting  */
    ZINCOMPATIBLE_VERSION = 7
  };
private:
  
  Uint32 blockRef;
  Uint32 nodeId;
  Uint32 errorCode;
  Uint32 presidentCandidate;
};

class CmAdd {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );
  
private:
  enum RequestType {
    Prepare   = 0,
    AddCommit = 1,
    CommitNew = 2
  };
  
  Uint32 requestType;
  Uint32 startingNodeId;
  Uint32 startingVersion;
};

class CmAckAdd {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );
  
private:
  Uint32 senderNodeId;
  Uint32 requestType; // see CmAdd::RequestType
  Uint32 startingNodeId;
};

class CmNodeInfoReq {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );
  
private:
  /**
   * This is information for sending node (starting node)
   */
  Uint32 nodeId;
  Uint32 dynamicId;
  Uint32 version;
};

class CmNodeInfoRef {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );

  enum ErrorCode {
    NotRunning = 1
  };
  
private:
  Uint32 nodeId;
  Uint32 errorCode;
};

class CmNodeInfoConf {
  /**
   * Sender(s) & Reciver(s)
   */
  friend class Qmgr;
  
public:
  STATIC_CONST( SignalLength = 3 );
  
private:
  Uint32 nodeId;
  Uint32 dynamicId;
  Uint32 version;
};

#endif