mirror of
https://github.com/MariaDB/server.git
synced 2025-01-21 06:22:28 +01:00
ec8257216e
SYNTAX: ATOMIC_WRITES=['DEFAULT','ON','OFF']
Idea here is to be able to define innodb_doublewrite = 1 but with following rules:
ATOMIC_WRITES='DEFAULT' - if innodb_use_atomic_writes = 1, we do not write to doublewrite buffer the changes
if innodb_use_atomic_writes = 0, we write to doublewrite buffer
ATOMIC_WRITES='ON' - do not write to doublewrite buffer
ATOMIC_WRITES='OFF' - write to doublewrite buffer
Note that doublewrite buffer can't be used if innodb_doublewrite = 0.
94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/*****************************************************************************
|
|
|
|
Copyright (C) 2013 SkySQL Ab. All Rights Reserved.
|
|
|
|
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; version 2 of the License.
|
|
|
|
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.,
|
|
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************//**
|
|
@file include/dict0pagecompress.h
|
|
Helper functions for extracting/storing page compression information
|
|
to dictionary.
|
|
|
|
Created 11/12/2013 Jan Lindström jan.lindstrom@skysql.com
|
|
***********************************************************************/
|
|
|
|
#ifndef dict0pagecompress_h
|
|
#define dict0pagecompress_h
|
|
|
|
/********************************************************************//**
|
|
Extract the page compression level from table flags.
|
|
@return page compression level, or 0 if not compressed */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_tf_get_page_compression_level(
|
|
/*===============================*/
|
|
ulint flags) /*!< in: flags */
|
|
__attribute__((const));
|
|
/********************************************************************//**
|
|
Extract the page compression flag from table flags
|
|
@return page compression flag, or false if not compressed */
|
|
UNIV_INLINE
|
|
ibool
|
|
dict_tf_get_page_compression(
|
|
/*==========================*/
|
|
ulint flags) /*!< in: flags */
|
|
__attribute__((const));
|
|
|
|
/********************************************************************//**
|
|
Check whether the table uses the page compressed page format.
|
|
@return page compression level, or 0 if not compressed */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_table_page_compression_level(
|
|
/*==============================*/
|
|
const dict_table_t* table) /*!< in: table */
|
|
__attribute__((const));
|
|
|
|
/********************************************************************//**
|
|
Verify that dictionary flags match tablespace flags
|
|
@return true if flags match, false if not */
|
|
UNIV_INLINE
|
|
ibool
|
|
dict_tf_verify_flags(
|
|
/*=================*/
|
|
ulint table_flags, /*!< in: dict_table_t::flags */
|
|
ulint fsp_flags) /*!< in: fil_space_t::flags */
|
|
__attribute__((const));
|
|
|
|
/********************************************************************//**
|
|
Extract the atomic writes flag from table flags.
|
|
@return true if atomic writes are used, false if not used */
|
|
UNIV_INLINE
|
|
atomic_writes_t
|
|
dict_tf_get_atomic_writes(
|
|
/*======================*/
|
|
ulint flags) /*!< in: flags */
|
|
__attribute__((const));
|
|
|
|
/********************************************************************//**
|
|
Check whether the table uses the atomic writes.
|
|
@return true if atomic writes is used, false if not */
|
|
UNIV_INLINE
|
|
atomic_writes_t
|
|
dict_table_get_atomic_writes(
|
|
/*=========================*/
|
|
const dict_table_t* table); /*!< in: table */
|
|
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "dict0pagecompress.ic"
|
|
#endif
|
|
|
|
#endif
|