trx0roll.cc File Reference

#include "trx0roll.h"
#include "fsp0fsp.h"
#include "mach0data.h"
#include "trx0rseg.h"
#include "trx0trx.h"
#include "trx0undo.h"
#include "trx0rec.h"
#include "que0que.h"
#include "usr0sess.h"
#include "srv0start.h"
#include "read0read.h"
#include "row0undo.h"
#include "row0mysql.h"
#include "lock0lock.h"
#include "pars0pars.h"
#include "srv0mon.h"
#include "trx0sys.h"

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Macros
#define	TRX_ROLL_TRUNC_THRESHOLD   1

Functions
UNIV_INTERN dberr_t	trx_rollback_to_savepoint (trx_t *trx, trx_savept_t *savept)
UNIV_INTERN dberr_t	trx_rollback_for_mysql (trx_t *trx)
UNIV_INTERN dberr_t	trx_rollback_last_sql_stat_for_mysql (trx_t *trx)
UNIV_INTERN void	trx_roll_savepoints_free (trx_t *trx, trx_named_savept_t *savep)

Variables
static trx_named_savept_t *	savep

Detailed Description

Transaction rollback

Created 3/26/1996 Heikki Tuuri

Definition in file trx0roll.cc.

Macro Definition Documentation

#define TRX_ROLL_TRUNC_THRESHOLD   1

This many pages must be undone before a truncate is tried within

rollback

Definition at line 51 of file trx0roll.cc.

Function Documentation

UNIV_INTERN void trx_roll_savepoints_free	(	trx_t *	trx,
		trx_named_savept_t *	savep
	)

Frees savepoint structs starting from savep.

Parameters

trx	in: transaction handle
savep	in: free all savepoints starting with this savepoint i

Definition at line 321 of file trx0roll.cc.

UNIV_INTERN dberr_t trx_rollback_for_mysql

(

trx_t *

trx

)

Rollback a transaction used in MySQL.

Returns

error code or DB_SUCCESS

Parameters

trx	in/out: transaction

Definition at line 197 of file trx0roll.cc.

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UNIV_INTERN dberr_t trx_rollback_last_sql_stat_for_mysql

(

trx_t *

trx

)

Rollback the latest SQL statement for MySQL.

Returns

error code or DB_SUCCESS

Parameters

trx	in/out: transaction

Definition at line 234 of file trx0roll.cc.

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UNIV_INTERN dberr_t trx_rollback_to_savepoint	(	trx_t *	trx,
		trx_savept_t *	savept
	)

Rollback a transaction to a given savepoint or do a complete rollback.

Returns

error code or DB_SUCCESS

Parameters

trx	in: transaction handle
savept	in: pointer to savepoint undo number, if partial rollback requested, or NULL for complete rollback

Definition at line 137 of file trx0roll.cc.

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Variable Documentation

trx_named_savept_t* savep

< in/out: transaction in/out: savepoint

Definition at line 352 of file trx0roll.cc.