release/src/router/mysql/storage/ndb/include/kernel/signaldata/IndxKeyInfo.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 INDX_KEY_INFO_HPP
  17 #define INDX_KEY_INFO_HPP
  18
  19 #include "SignalData.hpp"
  20
  21 class IndxKeyInfo {
  22   /**
  23    * Sender(s)
  24    */
  25   friend class NdbIndexOperation;
  26
  27   /**
  28    * Reciver(s)
  29    */
  30   friend class Dbtc;
  31
  32   friend bool printINDXKEYINFO(FILE *, const Uint32 *, Uint32, Uint16);
  33
  34 public:
  35   STATIC_CONST( HeaderLength = 3 );
  36   STATIC_CONST( DataLength = 20 );
  37   STATIC_CONST( MaxSignalLength = HeaderLength + DataLength );
  38
  39   // Public methods
  40 public:
  41  Uint32* getData() const;
  42
  43 private:
  44   Uint32 connectPtr;
  45   Uint32 transId[2];
  46   Uint32 keyData[DataLength];
  47 };
  48
  49 inline
  50 Uint32* IndxKeyInfo::getData() const
  51 {
  52   return (Uint32*)&keyData[0];
  53 }
  54
  55 #endif