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txn.src
Package: mysql-3.23.35.tar.gz [view]
Upload User: tsgydb
Upload Date: 2007-04-14
Package Size: 10674k
Code Size: 3k
Category:
MySQL
Development Platform:
Visual C++
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998, 1999, 2000
- * Sleepycat Software. All rights reserved.
- *
- * $Id: txn.src,v 11.10 2001/01/02 00:58:33 margo Exp $
- */
- PREFIX txn
- INCLUDE #include "db_config.h"
- INCLUDE
- INCLUDE #ifndef NO_SYSTEM_INCLUDES
- INCLUDE #include <sys/types.h>
- INCLUDE
- INCLUDE #include <ctype.h>
- INCLUDE #include <errno.h>
- INCLUDE #include <string.h>
- INCLUDE #endif
- INCLUDE
- INCLUDE #include "db_int.h"
- INCLUDE #include "db_page.h"
- INCLUDE #include "db_dispatch.h"
- INCLUDE #include "db_am.h"
- INCLUDE #include "txn.h"
- INCLUDE
- /*
- * DEPRECATED in 3.1 to add timestamps.
- */
- DEPRECATED old_regop 6
- ARG opcode u_int32_t lu
- END
- /*
- * This is the standard log operation for commit.
- * Note that we are using an int32_t for the timestamp. This means that
- * in 2039 we will need to deprecate this log record and create one that
- * either changes the Epoch or has a 64-bit offset.
- */
- BEGIN regop 10
- ARG opcode u_int32_t lu
- ARG timestamp int32_t ld
- END
- DEPRECATED old_ckp 7
- POINTER ckp_lsn DB_LSN * lu
- POINTER last_ckp DB_LSN * lu
- END
- /*
- * This is the checkpoint record. It contains the lsn that the checkpoint
- * guarantees and a pointer to the last checkpoint so we can walk backwards
- * by checkpoint.
- *
- * ckp_lsn:
- * The lsn in the log of the most recent point at which all begun
- * transactions have been aborted. This is the point for which
- * the checkpoint is relevant.
- * last_ckp:
- * The previous checkpoint.
- * timestamp:
- * See comment in commit about timestamps.
- */
- BEGIN ckp 11
- POINTER ckp_lsn DB_LSN * lu
- POINTER last_ckp DB_LSN * lu
- ARG timestamp int32_t ld
- END
- /*
- * This is the standard log operation for prepare (since right now
- * we only use prepare in an XA environment).
- */
- DEPRECATED xa_regop_old 8
- ARG opcode u_int32_t lu
- DBT xid DBT s
- ARG formatID int32_t ld
- ARG gtrid u_int32_t u
- ARG bqual u_int32_t u
- END
- /*
- * This is the standard log operation for prepare (since right now
- * we only use prepare in an XA environment).
- */
- BEGIN xa_regop 13
- ARG opcode u_int32_t lu
- DBT xid DBT s
- ARG formatID int32_t ld
- ARG gtrid u_int32_t u
- ARG bqual u_int32_t u
- POINTER begin_lsn DB_LSN * lu
- END
- /*
- * This is the log operation for a child commit.
- */
- DEPRECATED child_old 9
- ARG opcode u_int32_t lu
- ARG parent u_int32_t lx
- END
- /*
- * This is the (new) log operation for a child commit. It is
- * logged as a record in the PARENT. The child field contains
- * the transaction ID of the child committing and the c_lsn is
- * the last LSN of the child's log trail.
- */
- BEGIN child 12
- ARG child u_int32_t lx
- POINTER c_lsn DB_LSN * lu
- END