UtilLock.hpp
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上传日期:2022-05-23
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文件大小:6k
- /* 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_LOCK_HPP
- #define UTIL_LOCK_HPP
- #include "SignalData.hpp"
- class UtilLockReq {
-
- /**
- * Receiver
- */
- friend class DbUtil;
-
- /**
- * Sender
- */
- friend class Dbdih;
- friend class MutexManager;
- friend bool printUTIL_LOCK_REQ(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
- enum RequestInfo {
- TryLock = 1
- };
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 requestInfo;
- };
- class UtilLockConf {
-
- /**
- * Receiver
- */
- friend class Dbdih;
- friend class MutexManager;
- /**
- * Sender
- */
- friend class DbUtil;
- friend bool printUTIL_LOCK_CONF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
-
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 lockKey;
- };
- class UtilLockRef {
-
- /**
- * Reciver
- */
- friend class Dbdih;
- friend class MutexManager;
-
- /**
- * Sender
- */
- friend class DbUtil;
-
- friend bool printUTIL_LOCK_REF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
-
- enum ErrorCode {
- OK = 0,
- NoSuchLock = 1,
- OutOfLockRecords = 2,
- DistributedLockNotSupported = 3,
- LockAlreadyHeld = 4
-
- };
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 errorCode;
- };
- class UtilUnlockReq {
-
- /**
- * Receiver
- */
- friend class DbUtil;
-
- /**
- * Sender
- */
- friend class Dbdih;
- friend class MutexManager;
- friend bool printUTIL_UNLOCK_REQ(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
-
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 lockKey;
- };
- class UtilUnlockConf {
-
- /**
- * Receiver
- */
- friend class Dbdih;
- friend class MutexManager;
- /**
- * Sender
- */
- friend class DbUtil;
- friend bool printUTIL_UNLOCK_CONF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 3 );
-
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- };
- class UtilUnlockRef {
-
- /**
- * Reciver
- */
- friend class Dbdih;
- friend class MutexManager;
-
- /**
- * Sender
- */
- friend class DbUtil;
-
- friend bool printUTIL_UNLOCK_REF(FILE *, const Uint32 *, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
-
- enum ErrorCode {
- OK = 0,
- NoSuchLock = 1,
- NotLockOwner = 2
- };
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 errorCode;
- };
- /**
- * Creating a lock
- */
- class UtilCreateLockReq {
- /**
- * Receiver
- */
- friend class DbUtil;
-
- /**
- * Sender
- */
- friend class MutexManager;
-
- friend bool printUTIL_CREATE_LOCK_REQ(FILE *, const Uint32*, Uint32, Uint16);
- public:
- enum LockType {
- Mutex = 0 // Lock with only exclusive locks
- };
- STATIC_CONST( SignalLength = 4 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 lockType;
- };
- class UtilCreateLockRef {
- /**
- * Sender
- */
- friend class DbUtil;
-
- /**
- * Receiver
- */
- friend class MutexManager;
- friend bool printUTIL_CREATE_LOCK_REF(FILE *, const Uint32*, Uint32, Uint16);
- public:
- enum ErrorCode {
- OK = 0,
- OutOfLockQueueRecords = 1,
- LockIdAlreadyUsed = 2,
- UnsupportedLockType = 3
- };
- STATIC_CONST( SignalLength = 4 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 errorCode;
- };
- class UtilCreateLockConf {
- /**
- * Sender
- */
- friend class DbUtil;
-
- /**
- * Receiver
- */
- friend class MutexManager;
- friend bool printUTIL_CREATE_LOCK_CONF(FILE*, const Uint32*, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 3 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- };
- /**
- * Creating a lock
- */
- class UtilDestroyLockReq {
- /**
- * Receiver
- */
- friend class DbUtil;
-
- /**
- * Sender
- */
- friend class MutexManager;
-
- friend bool printUTIL_DESTROY_LOCK_REQ(FILE *, const Uint32*, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 4 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 lockKey;
- };
- class UtilDestroyLockRef {
- /**
- * Sender
- */
- friend class DbUtil;
-
- /**
- * Receiver
- */
- friend class MutexManager;
- friend bool printUTIL_DESTROY_LOCK_REF(FILE *, const Uint32*, Uint32, Uint16);
- public:
- enum ErrorCode {
- OK = 0,
- NoSuchLock = 1,
- NotLockOwner = 2
- };
- STATIC_CONST( SignalLength = 4 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- Uint32 errorCode;
- };
- class UtilDestroyLockConf {
- /**
- * Sender
- */
- friend class DbUtil;
-
- /**
- * Receiver
- */
- friend class MutexManager;
- friend bool printUTIL_DESTROY_LOCK_CONF(FILE*, const Uint32*, Uint32, Uint16);
- public:
- STATIC_CONST( SignalLength = 3 );
- public:
- Uint32 senderData;
- Uint32 senderRef;
- Uint32 lockId;
- };
- #endif