release/src/router/mysql/storage/ndb/include/kernel/signaldata/MasterGCP.hpp

   1 /* Copyright (c) 2003, 2005 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16 #ifndef MASTER_GCP_HPP
  17 #define MASTER_GCP_HPP
  18
  19 #include <NodeBitmask.hpp>
  20
  21 /**
  22  *
  23  */
  24 class MasterGCPConf {
  25   /**
  26    * Sender(s) / Reciver(s)
  27    */
  28   friend class Dbdih;
  29
  30 public:
  31   STATIC_CONST( SignalLength = 8 + NdbNodeBitmask::Size );
  32
  33   enum State {
  34     GCP_READY            = 0,
  35     GCP_PREPARE_RECEIVED = 1,
  36     GCP_COMMIT_RECEIVED  = 2,
  37     GCP_TC_FINISHED      = 3
  38   };
  39 private:
  40   /**
  41    * Data replied
  42    */
  43   Uint32 gcpState;
  44   Uint32 senderNodeId;
  45   Uint32 failedNodeId;
  46   Uint32 newGCP;
  47   Uint32 latestLCP;
  48   Uint32 oldestRestorableGCI;
  49   Uint32 keepGCI;
  50   Uint32 lcpActive[NdbNodeBitmask::Size];
  51 };
  52 /**
  53  *
  54  */
  55 class MasterGCPReq {
  56   /**
  57    * Sender(s) / Reciver(s)
  58    */
  59   friend class Dbdih;
  60
  61 public:
  62   STATIC_CONST( SignalLength = 2 );
  63 private:
  64   Uint32 masterRef;
  65   Uint32 failedNodeId;
  66 };
  67
  68 /**
  69  *
  70  */
  71 class MasterGCPRef {
  72   /**
  73    * Sender(s) / Reciver(s)
  74    */
  75   friend class Dbdih;
  76
  77 public:
  78   STATIC_CONST( SignalLength = 2 );
  79 private:
  80   Uint32 senderNodeId;
  81   Uint32 failedNodeId;
  82 };
  83 #endif