diff options
Diffstat (limited to 'storage/innobase/include/buf0checksum.h')
| -rw-r--r-- | storage/innobase/include/buf0checksum.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/storage/innobase/include/buf0checksum.h b/storage/innobase/include/buf0checksum.h index 6818345f965..7834ad4d292 100644 --- a/storage/innobase/include/buf0checksum.h +++ b/storage/innobase/include/buf0checksum.h @@ -1,6 +1,7 @@ /***************************************************************************** Copyright (c) 1995, 2011, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 2017, 2018, MariaDB Corporation. 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 @@ -80,4 +81,16 @@ buf_checksum_algorithm_name( extern ulong srv_checksum_algorithm; +/** Calculates the CRC32 checksum of a page compressed page. The value is +stored to the page when it is written to a file and also checked for +a match when reading from the file. Checksum is calculated from +actual payload of the compressed page and some header fields. + +@param[in] page buffer page (UNIV_PAGE_SIZE bytes) +@return checksum */ +UNIV_INTERN +uint32_t +buf_calc_compressed_crc32( + const byte* page); + #endif /* buf0checksum_h */ |