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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; version 2 of the License.
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 NdbTransaction;
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( DirtyReadBit = (((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
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