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Diffstat (limited to 'storage/xtradb/include/buf0checksum.h')
| -rw-r--r-- | storage/xtradb/include/buf0checksum.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/storage/xtradb/include/buf0checksum.h b/storage/xtradb/include/buf0checksum.h deleted file mode 100644 index 6818345f965..00000000000 --- a/storage/xtradb/include/buf0checksum.h +++ /dev/null @@ -1,83 +0,0 @@ -/***************************************************************************** - -Copyright (c) 1995, 2011, Oracle and/or its affiliates. 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 Street, Suite 500, Boston, MA 02110-1335 USA - -*****************************************************************************/ - -/**************************************************//** -@file buf/buf0checksum.h -Buffer pool checksum functions, also linked from /extra/innochecksum.cc - -Created Aug 11, 2011 Vasil Dimov -*******************************************************/ - -#ifndef buf0checksum_h -#define buf0checksum_h - -#include "univ.i" - -#include "buf0types.h" - -/** Magic value to use instead of checksums when they are disabled */ -#define BUF_NO_CHECKSUM_MAGIC 0xDEADBEEFUL - -/********************************************************************//** -Calculates a page CRC32 which is stored to the page when it is written -to a file. Note that we must be careful to calculate the same value on -32-bit and 64-bit architectures. -@return checksum */ -UNIV_INTERN -ib_uint32_t -buf_calc_page_crc32( -/*================*/ - const byte* page); /*!< in: buffer page */ - -/********************************************************************//** -Calculates a page checksum which is stored to the page when it is written -to a file. Note that we must be careful to calculate the same value on -32-bit and 64-bit architectures. -@return checksum */ -UNIV_INTERN -ulint -buf_calc_page_new_checksum( -/*=======================*/ - const byte* page); /*!< in: buffer page */ - -/********************************************************************//** -In versions < 4.0.14 and < 4.1.1 there was a bug that the checksum only -looked at the first few bytes of the page. This calculates that old -checksum. -NOTE: we must first store the new formula checksum to -FIL_PAGE_SPACE_OR_CHKSUM before calculating and storing this old checksum -because this takes that field as an input! -@return checksum */ -UNIV_INTERN -ulint -buf_calc_page_old_checksum( -/*=======================*/ - const byte* page); /*!< in: buffer page */ - -/********************************************************************//** -Return a printable string describing the checksum algorithm. -@return algorithm name */ -UNIV_INTERN -const char* -buf_checksum_algorithm_name( -/*========================*/ - srv_checksum_algorithm_t algo); /*!< in: algorithm */ - -extern ulong srv_checksum_algorithm; - -#endif /* buf0checksum_h */ |