mirror of
https://github.com/MariaDB/server.git
synced 2025-01-21 06:22:28 +01:00
164 lines
3.6 KiB
C++
164 lines
3.6 KiB
C++
/* 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 ACC_SCAN_HPP
|
|
#define ACC_SCAN_HPP
|
|
|
|
#include "SignalData.hpp"
|
|
|
|
/*
|
|
* Used by ACC and TUX scan.
|
|
*/
|
|
|
|
class AccScanReq {
|
|
/**
|
|
* Sender(s)
|
|
*/
|
|
friend class Dblqh;
|
|
|
|
/**
|
|
* Reciver(s)
|
|
*/
|
|
friend class Dbacc;
|
|
friend class Dbtux;
|
|
public:
|
|
STATIC_CONST( SignalLength = 8 );
|
|
|
|
private:
|
|
Uint32 senderData;
|
|
Uint32 senderRef;
|
|
Uint32 tableId;
|
|
Uint32 fragmentNo;
|
|
Uint32 requestInfo;
|
|
Uint32 transId1;
|
|
Uint32 transId2;
|
|
Uint32 savePointId;
|
|
|
|
/**
|
|
* Previously there where also a scan type
|
|
*/
|
|
static Uint32 getLockMode(const Uint32 & requestInfo);
|
|
static Uint32 getKeyinfoFlag(const Uint32 & requestInfo);
|
|
static Uint32 getReadCommittedFlag(const Uint32 & requestInfo);
|
|
|
|
static void setLockMode(Uint32 & requestInfo, Uint32 lockMode);
|
|
static void setKeyinfoFlag(Uint32 & requestInfo, Uint32 keyinfo);
|
|
static void setReadCommittedFlag(Uint32 & requestInfo, Uint32 readCommitted);
|
|
};
|
|
|
|
/**
|
|
* Request Info
|
|
*
|
|
* l = Lock Mode - 1 Bit 2
|
|
* k = Keyinfo - 1 Bit 4
|
|
* h = Read Committed - 1 Bit 5
|
|
*
|
|
* 1111111111222222222233
|
|
* 01234567890123456789012345678901
|
|
* l kh
|
|
*/
|
|
#define AS_LOCK_MODE_SHIFT (2)
|
|
#define AS_LOCK_MODE_MASK (1)
|
|
|
|
#define AS_KEYINFO_SHIFT (4)
|
|
#define AS_READ_COMMITTED_SHIFT (5)
|
|
|
|
inline
|
|
Uint32
|
|
AccScanReq::getLockMode(const Uint32 & requestInfo){
|
|
return (requestInfo >> AS_LOCK_MODE_SHIFT) & AS_LOCK_MODE_MASK;
|
|
}
|
|
|
|
inline
|
|
Uint32
|
|
AccScanReq::getKeyinfoFlag(const Uint32 & requestInfo){
|
|
return (requestInfo >> AS_KEYINFO_SHIFT) & 1;
|
|
}
|
|
|
|
inline
|
|
Uint32
|
|
AccScanReq::getReadCommittedFlag(const Uint32 & requestInfo){
|
|
return (requestInfo >> AS_READ_COMMITTED_SHIFT) & 1;
|
|
}
|
|
|
|
inline
|
|
void
|
|
AccScanReq::setLockMode(UintR & requestInfo, UintR val){
|
|
ASSERT_MAX(val, AS_LOCK_MODE_MASK, "AccScanReq::setLockMode");
|
|
requestInfo |= (val << AS_LOCK_MODE_SHIFT);
|
|
}
|
|
|
|
inline
|
|
void
|
|
AccScanReq::setKeyinfoFlag(UintR & requestInfo, UintR val){
|
|
ASSERT_BOOL(val, "AccScanReq::setKeyinfoFlag");
|
|
requestInfo |= (val << AS_KEYINFO_SHIFT);
|
|
}
|
|
|
|
inline
|
|
void
|
|
AccScanReq::setReadCommittedFlag(UintR & requestInfo, UintR val){
|
|
ASSERT_BOOL(val, "AccScanReq::setReadCommittedFlag");
|
|
requestInfo |= (val << AS_READ_COMMITTED_SHIFT);
|
|
}
|
|
|
|
class AccScanConf {
|
|
/**
|
|
* Sender(s)
|
|
*/
|
|
friend class Dbacc;
|
|
friend class Dbtux;
|
|
|
|
/**
|
|
* Reciver(s)
|
|
*/
|
|
friend class Dblqh;
|
|
|
|
enum {
|
|
ZEMPTY_FRAGMENT = 0,
|
|
ZNOT_EMPTY_FRAGMENT = 1
|
|
};
|
|
|
|
public:
|
|
STATIC_CONST( SignalLength = 8 );
|
|
|
|
private:
|
|
Uint32 scanPtr;
|
|
Uint32 accPtr;
|
|
Uint32 unused1;
|
|
Uint32 unused2;
|
|
Uint32 unused3;
|
|
Uint32 unused4;
|
|
Uint32 unused5;
|
|
Uint32 flag;
|
|
};
|
|
|
|
class AccCheckScan {
|
|
friend class Dbacc;
|
|
friend class Dbtux;
|
|
friend class Dblqh;
|
|
enum {
|
|
ZCHECK_LCP_STOP = 0,
|
|
ZNOT_CHECK_LCP_STOP = 1
|
|
};
|
|
public:
|
|
STATIC_CONST( SignalLength = 2 );
|
|
private:
|
|
Uint32 accPtr; // scanptr.i in ACC or TUX
|
|
Uint32 checkLcpStop; // from enum
|
|
};
|
|
|
|
#endif
|