mariadb/ndb/include/kernel/signaldata/NextScan.hpp
2004-04-14 10:53:21 +02:00

67 lines
1.8 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 NEXT_SCAN_HPP
#define NEXT_SCAN_HPP
#include "SignalData.hpp"
class NextScanReq {
friend class Dblqh;
friend class Dbacc;
friend class Dbtux;
public:
// two sets of defs picked from lqh/acc
enum ScanFlag {
ZSCAN_NEXT = 1,
ZSCAN_NEXT_COMMIT = 2,
ZSCAN_COMMIT = 3, // new
ZSCAN_CLOSE = 6,
ZSCAN_NEXT_ABORT = 12
};
enum CopyFlag {
todo_ZCOPY_NEXT = 1,
todo_ZCOPY_NEXT_COMMIT = 2,
todo_ZCOPY_COMMIT = 3,
todo_ZCOPY_REPEAT = 4,
todo_ZCOPY_ABORT = 5,
todo_ZCOPY_CLOSE = 6
};
STATIC_CONST( SignalLength = 3 );
private:
Uint32 accPtr; // scan record in ACC/TUX
Uint32 accOperationPtr;
Uint32 scanFlag;
};
class NextScanConf {
friend class Dbacc;
friend class Dbtux;
friend class Dblqh;
public:
// length is less if no keyinfo or no next result
STATIC_CONST( SignalLength = 11 );
private:
Uint32 scanPtr; // scan record in LQH
Uint32 accOperationPtr;
Uint32 fragId;
Uint32 localKey[2];
Uint32 localKeyLength;
Uint32 keyLength;
Uint32 key[4];
};
#endif