TcKeyConf.hpp
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上传日期:2022-05-23
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文件大小:3k
- /* 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 TC_KEY_CONF_H
- #define TC_KEY_CONF_H
- #include "SignalData.hpp"
- /**
- *
- */
- class TcKeyConf {
- /**
- * Reciver(s)
- */
- friend class Ndb;
- friend class NdbConnection;
- friend class Ndbcntr;
- friend class DbUtil;
- /**
- * Sender(s)
- */
- friend class Dbtc;
- /**
- * For printing
- */
- friend bool printTCKEYCONF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- /**
- * Length of signal
- */
- STATIC_CONST( StaticLength = 5 );
- STATIC_CONST( OperationLength = 2 );
- STATIC_CONST( SimpleReadBit = (((Uint32)1) << 31) );
-
- private:
- /**
- * DATA VARIABLES
- */
- //-------------------------------------------------------------
- // Unconditional part. First 5 words
- //-------------------------------------------------------------
- Uint32 apiConnectPtr;
- Uint32 gci;
- Uint32 confInfo;
- Uint32 transId1;
- Uint32 transId2;
- struct OperationConf {
- Uint32 apiOperationPtr;
- Uint32 attrInfoLen;
- };
- //-------------------------------------------------------------
- // Operations confirmations,
- // No of actually sent = getNoOfOperations(confInfo)
- //-------------------------------------------------------------
- OperationConf operations[10];
-
- /**
- * Get:ers for confInfo
- */
- static Uint32 getNoOfOperations(const Uint32 & confInfo);
- static Uint32 getCommitFlag(const Uint32 & confInfo);
- static bool getMarkerFlag(const Uint32 & confInfo);
-
- /**
- * Set:ers for confInfo
- */
- static void setCommitFlag(Uint32 & confInfo, Uint8 flag);
- static void setNoOfOperations(Uint32 & confInfo, Uint32 noOfOps);
- static void setMarkerFlag(Uint32 & confInfo, Uint32 flag);
- };
- inline
- Uint32
- TcKeyConf::getNoOfOperations(const Uint32 & confInfo){
- return confInfo & 65535;
- }
- inline
- Uint32
- TcKeyConf::getCommitFlag(const Uint32 & confInfo){
- return ((confInfo >> 16) & 1);
- }
- inline
- bool
- TcKeyConf::getMarkerFlag(const Uint32 & confInfo){
- const Uint32 bits = 3 << 16; // Marker only valid when doing commit
- return (confInfo & bits) == bits;
- }
- inline
- void
- TcKeyConf::setNoOfOperations(Uint32 & confInfo, Uint32 noOfOps){
- ASSERT_MAX(noOfOps, 65535, "TcKeyConf::setNoOfOperations");
- confInfo = (confInfo & 0xFFFF0000) | noOfOps;
- }
- inline
- void
- TcKeyConf::setCommitFlag(Uint32 & confInfo, Uint8 flag){
- ASSERT_BOOL(flag, "TcKeyConf::setCommitFlag");
- confInfo |= (flag << 16);
- }
- inline
- void
- TcKeyConf::setMarkerFlag(Uint32 & confInfo, Uint32 flag){
- ASSERT_BOOL(flag, "TcKeyConf::setMarkerFlag");
- confInfo |= (flag << 17);
- }
- #endif