mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
2662b59306
Docs/manual.texi: Added Innobase documentation configure.in: Incremented version include/my_base.h: Added option for Innobase myisam/mi_check.c: cleanup mysql-test/t/bdb.test: cleanup mysql-test/t/innobase.test: Extended with new tests from bdb.test mysql-test/t/merge.test: Added test of SHOW create mysys/my_init.c: Fix for UNIXWARE 7 scripts/mysql_install_db.sh: Always write how to start mysqld scripts/safe_mysqld.sh: Fixed type sql/ha_innobase.cc: Update to new version sql/ha_innobase.h: Update to new version sql/handler.h: Added 'update_table_comment()' and 'append_create_info()' sql/sql_delete.cc: Fixes for Innobase sql/sql_select.cc: Fixes for Innobase sql/sql_show.cc: Append create information (for MERGE tables) sql/sql_update.cc: Fixes for Innobase
178 lines
5.6 KiB
C
178 lines
5.6 KiB
C
/******************************************************
|
|
Mini-transaction logging routines
|
|
|
|
(c) 1995 Innobase Oy
|
|
|
|
Created 12/7/1995 Heikki Tuuri
|
|
*******************************************************/
|
|
|
|
#ifndef mtr0log_h
|
|
#define mtr0log_h
|
|
|
|
#include "univ.i"
|
|
#include "mtr0mtr.h"
|
|
|
|
/************************************************************
|
|
Writes 1 - 4 bytes to a file page buffered in the buffer pool.
|
|
Writes the corresponding log record to the mini-transaction log. */
|
|
|
|
void
|
|
mlog_write_ulint(
|
|
/*=============*/
|
|
byte* ptr, /* in: pointer where to write */
|
|
ulint val, /* in: value to write */
|
|
byte type, /* in: MLOG_1BYTE, MLOG_2BYTES, MLOG_4BYTES */
|
|
mtr_t* mtr); /* in: mini-transaction handle */
|
|
/************************************************************
|
|
Writes 8 bytes to a file page buffered in the buffer pool.
|
|
Writes the corresponding log record to the mini-transaction log. */
|
|
|
|
void
|
|
mlog_write_dulint(
|
|
/*==============*/
|
|
byte* ptr, /* in: pointer where to write */
|
|
dulint val, /* in: value to write */
|
|
byte type, /* in: MLOG_8BYTES */
|
|
mtr_t* mtr); /* in: mini-transaction handle */
|
|
/************************************************************
|
|
Writes a string to a file page buffered in the buffer pool. Writes the
|
|
corresponding log record to the mini-transaction log. */
|
|
|
|
void
|
|
mlog_write_string(
|
|
/*==============*/
|
|
byte* ptr, /* in: pointer where to write */
|
|
byte* str, /* in: string to write */
|
|
ulint len, /* in: string length */
|
|
mtr_t* mtr); /* in: mini-transaction handle */
|
|
/************************************************************
|
|
Writes initial part of a log record consisting of one-byte item
|
|
type and four-byte space and page numbers. */
|
|
|
|
void
|
|
mlog_write_initial_log_record(
|
|
/*==========================*/
|
|
byte* ptr, /* in: pointer to (inside) a buffer frame
|
|
holding the file page where modification
|
|
is made */
|
|
byte type, /* in: log item type: MLOG_1BYTE, ... */
|
|
mtr_t* mtr); /* in: mini-transaction handle */
|
|
/************************************************************
|
|
Catenates 1 - 4 bytes to the mtr log. */
|
|
UNIV_INLINE
|
|
void
|
|
mlog_catenate_ulint(
|
|
/*================*/
|
|
mtr_t* mtr, /* in: mtr */
|
|
ulint val, /* in: value to write */
|
|
ulint type); /* in: MLOG_1BYTE, MLOG_2BYTES, MLOG_4BYTES */
|
|
/************************************************************
|
|
Catenates n bytes to the mtr log. */
|
|
|
|
void
|
|
mlog_catenate_string(
|
|
/*=================*/
|
|
mtr_t* mtr, /* in: mtr */
|
|
byte* str, /* in: string to write */
|
|
ulint len); /* in: string length */
|
|
/************************************************************
|
|
Catenates a compressed ulint to mlog. */
|
|
UNIV_INLINE
|
|
void
|
|
mlog_catenate_ulint_compressed(
|
|
/*===========================*/
|
|
mtr_t* mtr, /* in: mtr */
|
|
ulint val); /* in: value to write */
|
|
/************************************************************
|
|
Catenates a compressed dulint to mlog. */
|
|
UNIV_INLINE
|
|
void
|
|
mlog_catenate_dulint_compressed(
|
|
/*============================*/
|
|
mtr_t* mtr, /* in: mtr */
|
|
dulint val); /* in: value to write */
|
|
/************************************************************
|
|
Opens a buffer to mlog. It must be closed with mlog_close. */
|
|
UNIV_INLINE
|
|
byte*
|
|
mlog_open(
|
|
/*======*/
|
|
/* out: buffer, NULL if log mode MTR_LOG_NONE */
|
|
mtr_t* mtr, /* in: mtr */
|
|
ulint size); /* in: buffer size in bytes */
|
|
/************************************************************
|
|
Closes a buffer opened to mlog. */
|
|
UNIV_INLINE
|
|
void
|
|
mlog_close(
|
|
/*=======*/
|
|
mtr_t* mtr, /* in: mtr */
|
|
byte* ptr); /* in: buffer space from ptr up was not used */
|
|
/************************************************************
|
|
Writes the initial part of a log record. */
|
|
UNIV_INLINE
|
|
byte*
|
|
mlog_write_initial_log_record_fast(
|
|
/*===============================*/
|
|
/* out: new value of log_ptr */
|
|
byte* ptr, /* in: pointer to (inside) a buffer frame holding the
|
|
file page where modification is made */
|
|
byte type, /* in: log item type: MLOG_1BYTE, ... */
|
|
byte* log_ptr,/* in: pointer to mtr log which has been opened */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/****************************************************************
|
|
Writes the contents of a mini-transaction log, if any, to the database log. */
|
|
|
|
dulint
|
|
mlog_write(
|
|
/*=======*/
|
|
dyn_array_t* mlog, /* in: mlog */
|
|
ibool* modifications); /* out: TRUE if there were
|
|
log items to write */
|
|
/************************************************************
|
|
Parses an initial log record written by mlog_write_initial_log_record. */
|
|
|
|
byte*
|
|
mlog_parse_initial_log_record(
|
|
/*==========================*/
|
|
/* out: parsed record end, NULL if not a complete
|
|
record */
|
|
byte* ptr, /* in: buffer */
|
|
byte* end_ptr,/* in: buffer end */
|
|
byte* type, /* out: log record type: MLOG_1BYTE, ... */
|
|
ulint* space, /* out: space id */
|
|
ulint* page_no);/* out: page number */
|
|
/************************************************************
|
|
Parses a log record written by mlog_write_ulint or mlog_write_dulint. */
|
|
|
|
byte*
|
|
mlog_parse_nbytes(
|
|
/*==============*/
|
|
/* out: parsed record end, NULL if not a complete
|
|
record */
|
|
ulint type, /* in: log record type: MLOG_1BYTE, ... */
|
|
byte* ptr, /* in: buffer */
|
|
byte* end_ptr,/* in: buffer end */
|
|
byte* page); /* in: page where to apply the log record, or NULL */
|
|
/************************************************************
|
|
Parses a log record written by mlog_write_string. */
|
|
|
|
byte*
|
|
mlog_parse_string(
|
|
/*==============*/
|
|
/* out: parsed record end, NULL if not a complete
|
|
record */
|
|
byte* ptr, /* in: buffer */
|
|
byte* end_ptr,/* in: buffer end */
|
|
byte* page); /* in: page where to apply the log record, or NULL */
|
|
|
|
|
|
/* Insert, update, and maybe other functions may use this value to define an
|
|
extra mlog buffer size for variable size data */
|
|
#define MLOG_BUF_MARGIN 256
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "mtr0log.ic"
|
|
#endif
|
|
|
|
#endif
|