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author | unknown <knielsen@knielsen-hq.org> | 2009-06-09 13:16:11 +0200 |
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committer | unknown <knielsen@knielsen-hq.org> | 2009-06-09 13:16:11 +0200 |
commit | a6b7f71329ceb7d0188572f494b5d1a1f0461fc5 (patch) | |
tree | d7e62c1af5118cd3ec9346de436569e907fcc51d /storage/xtradb/include/fsp0fsp.ic | |
parent | b125770aaadd09e839ad9211047e88095984308b (diff) | |
parent | 107072563d771422c9bbb9aeeedce8ae19c5b838 (diff) | |
download | mariadb-git-a6b7f71329ceb7d0188572f494b5d1a1f0461fc5.tar.gz |
Import Percona XtraDB into the MariaDB source tree.
Diffstat (limited to 'storage/xtradb/include/fsp0fsp.ic')
-rw-r--r-- | storage/xtradb/include/fsp0fsp.ic | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/storage/xtradb/include/fsp0fsp.ic b/storage/xtradb/include/fsp0fsp.ic new file mode 100644 index 00000000000..f0301cc5e18 --- /dev/null +++ b/storage/xtradb/include/fsp0fsp.ic @@ -0,0 +1,44 @@ +/***************************************************************************** + +Copyright (c) 1995, 2009, Innobase Oy. 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., 59 Temple +Place, Suite 330, Boston, MA 02111-1307 USA + +*****************************************************************************/ + +/****************************************************** +File space management + +Created 12/18/1995 Heikki Tuuri +*******************************************************/ + +/*************************************************************************** +Checks if a page address is an extent descriptor page address. */ +UNIV_INLINE +ibool +fsp_descr_page( +/*===========*/ + /* out: TRUE if a descriptor page */ + ulint zip_size,/* in: compressed page size in bytes; + 0 for uncompressed pages */ + ulint page_no)/* in: page number */ +{ + ut_ad(ut_is_2pow(zip_size)); + + if (!zip_size) { + return(UNIV_UNLIKELY((page_no & (UNIV_PAGE_SIZE - 1)) + == FSP_XDES_OFFSET)); + } + + return(UNIV_UNLIKELY((page_no & (zip_size - 1)) == FSP_XDES_OFFSET)); +} |