UtilSequence.hpp
上传用户:romrleung
上传日期:2022-05-23
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文件大小:2k
- /* 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 UTIL_SEQUENCE_HPP
- #define UTIL_SEQUENCE_HPP
- #include "SignalData.hpp"
- class UtilSequenceReq {
-
- /**
- * Receiver
- */
- friend class DbUtil;
-
- /**
- * Sender
- */
- friend class Backup;
- friend class Suma;
- friend bool printUTIL_SEQUENCE_REQ(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 3 );
-
- enum RequestType {
- NextVal = 1, // Return uniq value
- CurrVal = 2, // Read
- Create = 3 // Create a sequence
- };
- private:
- Uint32 senderData;
- Uint32 sequenceId; // Number of sequence variable
- Uint32 requestType;
- };
- class UtilSequenceConf {
-
- /**
- * Receiver
- */
- friend class Backup;
- friend class Suma;
- /**
- * Sender
- */
- friend class DbUtil;
- friend bool printUTIL_SEQUENCE_CONF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 5 );
-
- private:
- Uint32 senderData;
- Uint32 sequenceId;
- Uint32 requestType;
- Uint32 sequenceValue[2];
- };
- class UtilSequenceRef {
-
- /**
- * Reciver
- */
- friend class Backup;
- friend class Suma;
- /**
- * Sender
- */
- friend class DbUtil;
-
- friend bool printUTIL_SEQUENCE_REF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 5 );
-
- enum ErrorCode {
- NoSuchSequence = 1,
- TCError = 2
- };
- private:
- Uint32 senderData;
- Uint32 sequenceId;
- Uint32 requestType;
- Uint32 errorCode;
- Uint32 TCErrorCode;
- };
- #endif