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

   1 /* Copyright (c) 2003, 2005, 2006 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 WAIT_GCP_HPP
  17 #define WAIT_GCP_HPP
  18
  19 /**
  20  * This signal is sent by anyone to local DIH
  21  *
  22  * If local DIH is not master, it forwards it to master DIH
  23  *   and start acting as a proxy
  24  *
  25  */
  26 class WaitGCPReq {
  27
  28   /**
  29    * Sender(s) / Reciver(s)
  30    */
  31   friend class Dbdih;
  32
  33   /**
  34    * Sender
  35    */
  36   friend class Ndbcntr;
  37   friend class Dbdict;
  38   friend class Backup;
  39   //friend class Grep::PSCoord;
  40
  41 public:
  42   STATIC_CONST( SignalLength = 3 );
  43 public:
  44   enum RequestType {
  45     Complete = 1,           ///< Wait for a GCP to complete
  46     CompleteForceStart = 2, ///< Wait for a GCP to complete start one if needed
  47     CompleteIfRunning = 3,  ///< Wait for ongoing GCP
  48     CurrentGCI        = 8,  ///< Immediately return current GCI
  49     BlockStartGcp     = 9,
  50     UnblockStartGcp   = 10
  51   };
  52
  53   Uint32 senderRef;
  54   Uint32 senderData;
  55   Uint32 requestType;
  56 };
  57
  58 class WaitGCPConf {
  59
  60   /**
  61    * Sender(s) / Reciver(s)
  62    */
  63   friend class Dbdih;
  64
  65   /**
  66    * Reciver(s)
  67    */
  68   friend class Ndbcntr;
  69   friend class Dbdict;
  70   friend class Backup;
  71   //friend class Grep::PSCoord;
  72
  73 public:
  74   STATIC_CONST( SignalLength = 3 );
  75
  76 public:
  77   Uint32 senderData;
  78   Uint32 gcp;
  79   Uint32 blockStatus;
  80 };
  81
  82 class WaitGCPRef {
  83
  84   /**
  85    * Sender(s) / Reciver(s)
  86    */
  87   friend class Dbdih;
  88
  89   /**
  90    * Reciver(s)
  91    */
  92   friend class Ndbcntr;
  93   friend class Dbdict;
  94   friend class Backup;
  95   friend class Grep;
  96
  97 public:
  98   STATIC_CONST( SignalLength = 2 );
  99
 100   enum ErrorCode {
 101     StopOK = 0,
 102     NF_CausedAbortOfProcedure = 1,
 103     NoWaitGCPRecords = 2
 104   };
 105
 106 private:
 107   Uint32 errorCode;
 108   Uint32 senderData;
 109 };
 110
 111 #endif