release/src/router/mysql/storage/ndb/include/kernel/signaldata/BlockCommitOrd.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 BLOCK_COMMIT_ORD_HPP
  17 #define BLOCK_COMMIT_ORD_HPP
  18
  19 /**
  20  * These two signals are sent via EXECUTE_DIRECT
  21  *   to DBDIH from QMGR
  22  *
  23  * Block make sure that no commit is performed
  24  * Unblock turns on commit again
  25  */
  26
  27 class BlockCommitOrd {
  28   /**
  29    * Sender(s)
  30    */
  31   friend class Qmgr;
  32
  33   /**
  34    * Reciver(s)
  35    */
  36   friend class Dbdih;
  37 public:
  38   STATIC_CONST( SignalLength = 1 );
  39
  40 private:
  41   Uint32 failNo; // As used by Qmgr
  42 };
  43
  44 class UnblockCommitOrd {
  45   /**
  46    * Sender(s)
  47    */
  48   friend class Qmgr;
  49
  50   /**
  51    * Reciver(s)
  52    */
  53   friend class Dbdih;
  54 public:
  55   STATIC_CONST( SignalLength = 1 );
  56
  57 private:
  58   Uint32 failNo; // As used by Qmgr
  59 };
  60
  61 #endif