release/src/router/mysql/storage/ndb/include/kernel/signaldata/NodeStateSignalData.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 NODE_STATE_SIGNAL_DATA_HPP
  17 #define NODE_STATE_SIGNAL_DATA_HPP
  18
  19 #include <NodeState.hpp>
  20
  21 /**
  22  * NodeStateRep
  23  *
  24  * Sent so that all blocks will update their NodeState
  25  */
  26 class NodeStateRep {
  27   /**
  28    * Sender(s)
  29    */
  30   friend class Ndbcntr;
  31
  32   /**
  33    * Reciver
  34    */
  35   friend class SimulatedBlock;
  36
  37 public:
  38   STATIC_CONST( SignalLength = NodeState::DataLength );
  39 private:
  40
  41   NodeState nodeState;
  42 };
  43
  44 /**
  45  * ChangeNodeStateReq
  46  *
  47  * Sent by NdbCntr when synchronous NodeState updates are needed
  48  */
  49 class ChangeNodeStateReq {
  50   /**
  51    * Sender(s)
  52    */
  53   friend class Ndbcntr;
  54
  55   /**
  56    * Reciver
  57    */
  58   friend class SimulatedBlock;
  59
  60 public:
  61   STATIC_CONST( SignalLength = 2 + NodeState::DataLength );
  62 public:
  63
  64   Uint32 senderRef;
  65   Uint32 senderData;
  66   NodeState nodeState;
  67 };
  68
  69 /**
  70  * ChangeNodeStateConf
  71  *
  72  * Sent by SimulatedBlock as a confirmation to ChangeNodeStateReq
  73  */
  74 class ChangeNodeStateConf {
  75   /**
  76    * Sender(s)
  77    */
  78   friend class SimulatedBlock;
  79
  80   /**
  81    * Reciver
  82    */
  83   friend class NdbCntr;
  84
  85 public:
  86   STATIC_CONST( SignalLength = 1 );
  87 private:
  88
  89   Uint32 senderData;
  90 };
  91
  92
  93 #endif