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/*****************************************************************************
Copyright (C) 2013, 2017, MariaDB Corporation. 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 02110-1335 USA
*****************************************************************************/
/******************************************************************//**
@file include/dict0pagecompress.ic
Inline implementation for helper functions for extracting/storing
page compression and atomic writes information to dictionary.
Created 11/12/2013 Jan Lindström jan.lindstrom@skysql.com
***********************************************************************/
/********************************************************************//**
Extract the page compression level from dict_table_t::flags.
These flags are in memory, so assert that they are valid.
@return page compression level, or 0 if not compressed */
UNIV_INLINE
ulint
dict_tf_get_page_compression_level(
/*===============================*/
ulint flags) /*!< in: flags */
{
ulint page_compression_level = DICT_TF_GET_PAGE_COMPRESSION_LEVEL(flags);
ut_ad(page_compression_level <= 9);
return(page_compression_level);
}
/********************************************************************//**
Check whether the table uses the page compression 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 */
{
ut_ad(table);
ut_ad(dict_tf_get_page_compression(table->flags));
return(dict_tf_get_page_compression_level(table->flags));
}
/********************************************************************//**
Check whether the table uses the page compression page format.
@return true if page compressed, false if not */
UNIV_INLINE
ibool
dict_tf_get_page_compression(
/*=========================*/
ulint flags) /*!< in: flags */
{
return(DICT_TF_GET_PAGE_COMPRESSION(flags));
}
/********************************************************************//**
Check whether the table uses the page compression page format.
@return true if page compressed, false if not */
UNIV_INLINE
ibool
dict_table_is_page_compressed(
/*==========================*/
const dict_table_t* table) /*!< in: table */
{
return (dict_tf_get_page_compression(table->flags));
}
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