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Diffstat (limited to 'storage/innobase/include/dict0pagecompress.inl')
-rw-r--r-- | storage/innobase/include/dict0pagecompress.inl | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/storage/innobase/include/dict0pagecompress.inl b/storage/innobase/include/dict0pagecompress.inl new file mode 100644 index 00000000..c959f9ca --- /dev/null +++ b/storage/innobase/include/dict0pagecompress.inl @@ -0,0 +1,81 @@ +/***************************************************************************** + +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)); +} |