release/src/router/mysql/storage/ndb/include/kernel/signaldata/PrepFailReqRef.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 PREP_FAILREQREF_HPP
  17 #define PREP_FAILREQREF_HPP
  18
  19 #include "SignalData.hpp"
  20 #include <NodeBitmask.hpp>
  21
  22 /**
  23  * The Req signal is sent by Qmgr to Qmgr
  24  * and the Ref signal might be sent back
  25  *
  26  * NOTE that the signals are identical
  27  */
  28 class PrepFailReqRef {
  29
  30   /**
  31    * Sender(s) / Reciver(s)
  32    */
  33   friend class Qmgr;
  34
  35   friend bool printPREPFAILREQREF(FILE * output, const Uint32 * theData, Uint32 len, Uint16 receiverBlockNo);
  36
  37 public:
  38   STATIC_CONST( SignalLength = 3 + NodeBitmask::Size );
  39 private:
  40
  41   Uint32 xxxBlockRef;
  42   Uint32 failNo;
  43
  44   Uint32 noOfNodes;
  45   Uint32 theNodes[NodeBitmask::Size];
  46 };
  47
  48 #endif