ReadNodesConf.hpp
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上传日期:2022-05-23
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- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef READ_NODESCONF_HPP
- #define READ_NODESCONF_HPP
- #include <NodeBitmask.hpp>
- /**
- * This signals is sent by Qmgr to NdbCntr
- * and then from NdbCntr sent to: dih, dict, lqh, tc
- *
- * NOTE Only noOfNodes & allNodes are valid when sent from Qmgr
- */
- class ReadNodesConf {
- /**
- * Sender(s)
- */
- friend class Qmgr;
-
- /**
- * Sender(s) / Reciver(s)
- */
- friend class Ndbcntr;
-
- /**
- * Reciver(s)
- */
- friend class Dbdih;
- friend class Dbdict;
- friend class Dblqh;
- friend class Dbtc;
- friend class Trix;
- friend class Backup;
- friend class Suma;
- friend class Grep;
- friend bool printREAD_NODES_CONF(FILE*, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 3 + 5*NdbNodeBitmask::Size );
- private:
-
- Uint32 noOfNodes;
- Uint32 ndynamicId;
- /**
- *
- * NOTE Not valid when send from Qmgr
- */
- Uint32 masterNodeId;
- /**
- * This array defines all the ndb nodes in the system
- */
- union {
- Uint32 allNodes[NdbNodeBitmask::Size];
- Uint32 definedNodes[NdbNodeBitmask::Size];
- };
- /**
- * This array describes wheather the nodes are currently active
- *
- * NOTE Not valid when send from Qmgr
- */
- Uint32 inactiveNodes[NdbNodeBitmask::Size];
- Uint32 clusterNodes[NdbNodeBitmask::Size]; // From Qmgr
- Uint32 startingNodes[NdbNodeBitmask::Size]; // From Cntr
- Uint32 startedNodes[NdbNodeBitmask::Size]; // From Cntr
- };
- #endif